IELTS for Bachillerato en Yucatán

Lic. en Educ. Ángel Adrián Argüelles García
Lic. en L.I. Lolina Marisol Pérez López
Lengua Adicional al Español
00 BEY QUIMICA preliminares.indd 1 24/07/13 15:56

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Datos de catalogación bibliográfica
Argüelles García, Ángel Adrián;
Pérez López, Lolina Marisol
Lengua Adicional al Español
PEARSON EDUCACIÓN, México, 2014
ISBN: 978-607-32-2262-4
Área: Humanidades
Formato: 20 25.5 cm Páginas: 88

iii
Rolando Rodrigo Zapata Bello
GOBERNADOR CONSTITUCIONAL
DEL ESTADO DE YUCATÁN
Raúl Humberto Godoy Montañez
SECRETARIO DE EDUCACIÓN
Gabriela Zapata Villalobos
DIRECTORA DE EDUCACIÓN MEDIA SUPERIOR
Alejandro Salazar Ortega
JEFE DEL DEPARTAMENTO DE PREPARATORIAS ESTATALES

iv
Estudiante del Mayab:
La necesidad por parte del Gobierno del Estado de Yucatán para brindar y
garantizar una educación de calidad a los jóvenes yucatecos del nivel Medio
Superior, se refrenda y consolida mediante acciones concretas, sustentadas en
procesos de actualización, consenso y diálogo permanentes. La publicación de
este libro de texto es el resultado del esfuerzo para integrar diversos puntos de
referencia fundamentados en estrategias de aprendizaje, habilidades y destrezas,
en el marco del modelo de estudio con enfoque socioformativo basado en
competencias, que acompañarán a nuestros jóvenes yucatecos durante su etapa
de formación. En nuestro Yucatán es tiempo de comenzar a entregar resultados
y cumplir la palabra empeñada, donde no sólo basten las buenas intenciones
o simples propuestas. Hoy, refrendamos nuestro compromiso para continuar
formando jóvenes capaces de competir en el mundo globalizado, por ello, le
apostamos a la educación, como pilar fundamental de cualquier sociedad que
aspire a elevar su nivel de bienestar.
ROLANDO RODRIGO ZAPATA BELLO
Gobernador Constitucional del Estado de Yucatán
Una de las vías de la política educativa del Gobierno de Yucatán es trabajar como
equipo para llegar a una misma meta: hacer de Yucatán una tierra con futuro
exitoso para todos.
Las escuelas preparatorias de la entidad, unidas en un sistema estatal de
bachillerato, han transitado por un largo camino de transformación
para ingresar al Sistema Nacional de Bachillerato.
La transformación de planes y programas enfocados al modelo socio-
formativo en competencias, ha dado como fruto el libro que hoy tienes
en tus manos y que fue preparado especialmente para ti, que hoy en día
demandas una formación integral, que incluya actitudes y valores, así como
aprendizajes que te permitan desarrollar una vida personal y social satisfactoria.
Este libro es la mejor herramienta para lograr que las alumnas y los alumnos
adquieran las competencias necesarias que les permitan aprender a aprender,
aprender a convivir y aprender a ser.
Sólo el desarrollo de capacidades y habilidades de nuestros jóvenes van a
transformar de fondo nuestro estado, nuestro país, nuestro mundo.
RAÚL HUMBERTO GODOY MONTAÑEZ
Secretario de Educación

v
El presente libro de texto tiene como intención fomentar el desarrollo de las competencias
disciplinares del área de comunicación, enfatisando el desarrollo de las habilidades de
producción oral y escrita. Las competencias disciplinares ejes son:
• Se comunica en una lengua extranjera mediante un discurso lógico, oral o escrito,
congruente con la situación comunicativa.
• Identifica e interpreta la idea general y posible desarrollo de un mensaje oral o escrito en
una segunda lengua, recurriendo a conocimientos previos, elementos no verbales y contexto
cultural.
Por tanto, como estudiante desarrollarás competencias disciplinares que te permitan leer
críticamente, te comuniques y argumentes ideas de manera efectiva y con claridad oralmente y
por escrito.
Por otra parte, esta asignatura es un curso introductorio que pretende prepararte en tu
camino a la certificación del idioma inglés, siguiendo la normatividad y las particularidades del
International English Language Testing System (IELTS) de la Universidad de Cambridge. En el
bloque uno, se presentan una diversidad de temas que te permitirán establecer estrategias
para aumentar tu vocabulario y trabajar en diversos ejercicios de lectura y redacción con dicha
variedad de temas. En el bloque dos, se pretende que te concentres en desarrollar conceptos
subsidiarios relacionados a un tema integrador específico. En el bloque tres, se realiza una
introducción al formato de interpretación de información académica para que puedas construir
textos del mismo índole.
En relación a los niveles de desempeño, se esperan los establecidos en el Marco Común
Europea de Referencia para las Lenguas:
Producción Oral
El estudiante es capaz de hacer una presentación breve y preparada
sobre un tema dentro de su especialidad con la suficiente claridad
como para que pueda seguir sin dificultad la mayor parte del tiempo y
cutas ideas principales están explicadas con una razonable precisión.
Es capaz de responder a preguntas complementarias, pero puede
que tenga que pedir que se las repitan si se habla con rapidez.
Producción Escrita
El estudiante escrite redacciones sencillas y detalladas sobre una serie
de temas cotidianos dentro de su especialidad. Escribe relaciones
de experiencias describiendo sentimientos y reacciones en textos
sencillos y estructurados. Es capaz de escribir una descripción de
un hecho determinado, un viaje reciente, real o imaginario. Puede
narrar una historia.
Esperando que los contenidos representen un reto académico y un acercamiento a material
académico preuniviersitario, deseamos que este curso de utilidad para tu crecimiento
académico.
LIC. EN EDUC. ÁNGEL ADRIÁN ARGÜELLES GARCÍA
Autor,

vi
ContentsContents
Lesson 1: The New Smarts 2
Speaking 2
Vocabulary 3
Reading 4
Writing 7
Listening 7
Lesson 2: Nature: Incredible
Secret 8
Speaking 8
Vocabulary 9
Reading 10
Writing 12
Listening 13
Lesson 1: Negative Impact
of Humans in the Environment 26
Speaking 26
Vocabulary 27
Reading 28
Writing 30
Listening 31
Lesson 2: Ailments, Symptoms
and Injuries 32
Speaking 32
Vocabulary 33
Reading 34
Writing 35
Listening 36
Lesson 1: An Introduction
to IELTS Academic Exam 50
Speaking 50
Vocabulary 51
Reading 52
Writing 53
Listening 54
Lesson 2: Education: Evaluating
Your Reading Skills 56
Speaking 56
Vocabulary 57
Reading 58
Writing 59
Listening 61
Appendix 74
M
odule
1
M
oule
1
M
odule
2
M
oule
2
M
odule
3
M
oule
3

vii
Lesson 3: Can You Believe It? 14
Speaking 14
Vocabulary 15
Reading 16
Writing 18
Listening 19
Lesson 4: Good Health,
Happy Life 20
Speaking 20
Vocabulary 21
Reading 22
Writing 25
Listening 25
Lesson 3: A Bird’s World 38
Speaking 38
Vocabulary 39
Reading 40
Writing 42
Listening 43
Lesson 4: Pollution and Seawater
Acidity 44
Speaking 44
Vocabulary 44
Reading 45
Writing 48
Listening 49
Lesson 3: Beauty 62
Speaking 62
Vocabulary 63
Reading 64
Writing 65
Listening 66
Lesson 4: Youth Problems 68
Speaking 68
Vocabulary 69
Reading 70
Writing 71
Listening 72

ix
PresentaciónPresentación
Grandes desequilibrios y oportunidades mueven el mundo de hoy. Formar personas
competentes que actúen en estos nuevos escenarios, y al mismo tiempo conformen
sociedades más equilibradas, es el nuevo reto educativo actual. Por lo tanto, debe-
mos construir una educación cuyo proceso permita el desarrollo humano, que se
oriente a nuevos y mejores modos de pensar y actuar. El objetivo es erigir una socie-
dad competente, que sabe hacer las cosas y sabe actuar con los demás, comprende
lo que hace y asume de manera responsable las consecuencias de sus actos.
El libro que tienes en tus manos está centrado en el desarrollo de las competen-
cias señaladas en el Marco Curricular Común de la Reforma Integral de la Educación
Media Superior.
Este enfoque de aprendizaje te permitirá atender los retos en el contexto y cir-
cunstancias del mundo actual, las cuales demandan personas capaces de aplicar sus
conocimientos, habilidades y actitudes en situaciones cada vez más complejas.
En el enfoque socioformativo por competencias se considera que los conocimien-
tos por sí mismos no son lo más importante, sino el uso que se hace de ellos en
situaciones específicas de la vida personal, social y profesional.
El Marco Curricular Común de la Reforma Integral de la Educación Media Superior
es-tablece que el conocimiento es más significativo para el individuo si cobra sentido
a partir de la práctica; es decir, si el aprendizaje se procura en una situación específica
de la vida.
Te invitamos a iniciar este viaje por el fascinante mundo del conocimiento. Estamos
seguros de que motivará tu deseo de aprender, de manera que puedas dar respuesta
a las demandas del mundo actual que requiere individuos con un pensamiento flexi-
ble, creativo, imaginativo y abierto al cambio.
¡Bienvenido!
C.D. GABRIELA ZAPATA VILLALOBOS
Directora de Educación Media Superior y Superior

2
M
odule
1M
ule
1
Speaking
A How many objects do you know? Match the names below with the following pictures.
B Ask to your teachers and friends the following questions, take notes of the answers.
Ask at least 10 people.
1. Do you know why they are called “smart” objects?
2. Do you have any kind of smart object?
3. Why did you choose it?
4. How helpful has it been?
5. How expensive was it?
6. How old is it and how fast did it become old?
7. What other smart thing do you have?
8. Do you think that we can live without smart things?
C Share and compare the answers with your classmates, after that, all together make a
graphic with the information and display it in a public place of your school.
Lesson 1
The New Smarts
If you don’t know about
an object, you can ask for
information about it using
some of the following
questions:
• Could you describe it?
• What does it do?
• What’s it used for?
Don’t be afraid to ask!
Just by asking we are
able to know more.
HEY!
1. Smart TV
2. Smart clothes
3. Smart phone
4. Smart shoes
5. Smart car
6. Smart camera
7. Smart credit card
8. Smart tablet
BEY QUIMICA M1.indd 2 24/07/13 15:57

3
Vocabulary
A Put the letters in the correct order, use the clues to discover the words.
1. E – A – A – I – B – C – T – R
2. C – M – A – O – U – E – A – F –L – G
3. G – M – S – O
4. C – X – I – O – T
5. R – R – D – A – O – W – E – B
6. C – B – A – F – I – R
7. I – I – E – N – F – C – T – N – O
8. F – B – R – C – A – A – T – I – E
9. I – I – I – N – S – C – T – E – E – C – D
10. T – T – E – M – P – U – E – R – A – R – E
B Write the words from the box below the pictures that represent them better.
yarn / infirm / textile / prohibit / universal serial bus / fiber / antibiotic / solar energy
C Write sentences using the words in Exercise B, write at least one sentence per word.
The best way to learn a
new word is using it!
You can play games;
write sentences, play
spelling bee contests with
your friends, ﬁnd their
meanings, etc.
HEY!
Don’t forget that you can
use a dictionary if there
are words that you don’t
know.You can also try free
web pages that help you
with the pronunciation.
HEY!
Single-celled organisms found in every ecosystem on Earth.
Tactic that organisms use to disguise their appearance,
usually to blend in with their surroundings.
Type of air pollution.
Poisonous.
Collection of clothing belonging to one person.
Cloth.
Contamination or invasion by harmful organisms,
such as a virus.
To make or construct.
Chemical substance used to kill insects.
Degree of hotness or coldness measured by a
thermometer with a numerical scale.

4
Reading
A Read the following text and underline the main ideas.
Try to do these actions
when you read:
• Identify the topic.
• Identify the main ideas.
• Underline keywords.
These actions will help
you to better understand
the reading.
HEY!
Smart Shirts
Nanotechnology will change the way we think about our clothes.
In the near future, you may choose your wardrobe based on what your clothes can do as
much as how they look. Scientists are using nanotechnology –the process of manipulating
materials on an atomic or molecular scale– to make clothes that can charge your phone or protect you from
toxins. Such fabrics, seemingly out of science fiction, are being developed at the Textiles Nanotechnology
Laboratory at Cornell University in Ithaca, New York, and the Alan G. MacDiarmid NanoTech Institute at the
University of Texas at Dallas.
At Cornell, a student of fiber science Professor Juan Hinestroza created a solar-powered jacket with a USB port
that can recharge a cell phone or iPod. But the possibilities don’t stop there. Nanotechnology may allow scientists
to create clothing that can react to changes in temperature. Your clothes could actually warm or cool your body.
“The weave pattern can be opened or tightened as a function of temperature,” Hinestroza says, and the fibers can
be modified so their physical properties change with temperature. You could also have a shirt or fabric that can
change its look. “Color is created by controlling the size of the nanoparticles and the space between them,” Hinestroza
says. “Some applications can be found in curtains that change color, giving spaces new meaning every time, as well
as interactive camouflage.” More importantly, nanotechnology could be used to protect our bodies from harmful
substances. “We can also kill bacteria or encapsulate insecticides to eliminate mosquitos or capture smog from the air,
or toxic gas in case there is a release of toxic gas,” Hinestroza says.
One particular area of interest for Hinestroza is developing clothing and other textiles that could eliminate the
risk of bacterial infections in hospitals. “Nanoparticles can kill bacteria resistant to antibiotics by interfering with
the bacteria’s reproductive mechanisms and penetrating the cellular membranes,” he says. Nanotech fibers could be
embedded in T-shirts to measure the heart rates of individuals with heart conditions.
Or sewn into pillows to monitor someone’s brain signals.
“Just think of biometrics,” says Dr. Ray Baughman, director of the Alan G. MacDiarmid NanoTech Institute,
referring to the process of identifying people based on biological characteristics, such as fingerprints. “It’s useful
to be able to monitor the vital signs of ordinary people and our soldiers. You can weave into a textile sensors, and
antennas for communicating information from these sensors, as well as means to power both by harvesting and
storing electrical energy from the environment.” Textiles embedded with nanotechnology features could also assist
the elderly. “As we get older, some of us become infirm before the day we bite the big bullet,” Baughman says. “Our
movements become feeble. It would be very nice to have clothing that senses the feeble movements of an elderly or
infirm person and provides mechanical actuation to help that person move.”
Multi-Functional Textiles
Hinestroza explains the basic process of integrating nanotechnology into clothing: “We modify the surface of
the cotton, and then we do chemistry on the surface,” he says. “We don’t change the properties of the fiber—only
the surface properties. So it will behave like cotton and bend like cotton. It will provide the comfort of cotton with
enhanced properties.” Yarn with nanotech materials can be mixed together with regular yarn as it is fabricated,

5
Remember!
We skim a text when we
are looking for a general
idea or quickly overview
the information.
We scan a text when we
are looking for key words
or a particular answer.
HEY!
B Underline the correct answer to complete each statement.
1. Nanotechnology will change
A. the way we look in clothes.
B. the way we think about our clothes.
C. the way we use our clothes.
2. Nanotechnology may allow scientists to create
A. clothing that can react to changes in temperature.
B. clothing that can change our temperature.
C. clothing that can read our feelings.
3. Nanotechnology could be used to
A. protect our bodies from harmful bugs and virus.
B. protect our bodies from harmful weapons.
C. protect our bodies from harmful substances.
4. The modified cotton
A. feels harder and rougher.
B. feels the same as usual.
C. feels softer and nicer.
5. Yarn with nanotech materials can be mixed with
A. the same kind of yarn.
B. with regular yarn.
C. with nothing else.
Baughman says. “Clothing woven from these yarns can then exploit
these new properties for such purposes as sensing, energy harvesting and
energy storage.” “ These nanotech yarns are multi-functional,” he says.
“Ordinary fibers for textiles are functional,” he says. “They provide for the
comfort and classical needs of textiles so no one is walking around naked.
Now if you are going to have more broadly useful textiles—in the sense
of being multi-functional—you need multi-functional yarns that can be
woven into a textile.”
Baughman explains the capabilities of these new textiles: “For example,
in the area of energy harvesting, we would like to have textiles that harvest
solar energy and convert it to electrical energy,” he says. “Or textiles that
can use the small temperature difference between the body and the outside
world to power wireless sensors.” Currently, the cost of producing some of
these items is too expensive to be practical on a large scale.
“The cost of producing clothing containing solely nanofiber yarns is
presently prohibitive,” Baughman says. “However, production costs will
decrease as yarn production is up-scaled, and even a small amount
of these special yarns can now be sewn into clothing to provide useful
performance.”
From www.nationalgeographis.com/EDUCATION

6
C Do the following statements agree with the information in the reading passage? Write,
TRUE if the statement agrees with the information, FALSE if the statement contradicts
the information given, and NOT GIVEN if there is no information on this.
1. Nanotechnology is the process of manipulating materials on an atomic or
molecular scale.
2. With the use of nanotechnology our clothes will be able to warm or cool our
bodies.
3. Professor Juan Hinestroza works in biometrics applications on fabrics.
4. Hinestroza discovered the basic process of integrating nanotechnology
into clothing.
5. The nanotech yarns are multifunctional.
D Which paragraph contains the following information? Number the paragraphs in the text,
ﬁnd the information and write the number of the paragraph in the spaces below.
1. In a not so far away future, we will be able to choose our wardrobe based on what
the clothes do as much as how they look.
2. Nanoparticles can kill bacteria resistant to antibiotics.
3. It will be able to have fabrics that can change its color.
4. Multi-functional yarns woven into textiles will give more broadly useful
textiles.
5. The cost of producing clothing containing solely nanofiber yarns is presently
prohibitive.

7
Don’t forget that an essay
has three parts:
1. Beginning: where you
talk about the topic.
2. Middle: where you
support your ideas.
3. Ending: where you give
the conclusions of your
ideas.
HEY!Writing
A Search the Internet for information about nanotechnology in other areas.Take notes of
the information and the web sites you visit.Write an essay with that information and
make a mind map. Present both to your classmates.
B Ok… So, you already looked up about nanotechnology but, what do you know about
the people who works in the field? Let’s begin with the author of the text you read before:
Stuart Thornton. Go over the text again and look for the names of the scientists,
investigators, and all the people involved in the development of this new technology.
You can begin your search at www.nationalgeographic.com
With the information you will find, give a presentation to your class. Use all kind of resources you want like illustrations,
pictures, images, power point presentations, etc.Work in teams of 4 people.
Listening
Have you ever wondered how it is like working in the field of technology? Would you like to work with Computers or Tablets?
Why or why not?
A Listen to the conversation.Answer the questions. Track 1
1. What professions and/or occupations do the students talk about?
2. Which one do they think has the best job?
B Listen again and complete the chart. Track 2
Professions / Occupations Tasks / Jobs Working hours
1.
2.
3.
4.
C Listen to the following sentences. Notice the rising and falling intonation. Listen again
and repeat. Track 3
I’m playing video games . Do you want to come over ?
What do you want to do ? Go running or watch TV ?

8
Speaking
A Can you identify some of the following pictures? Match them with their names.
B Ask to your teacher, classmates and people in your school the following questions.
Ask the questions to at least ten people and write their answers down.
1. Do you know what the plants do for us?
2. Do you know how?
3. Do you know what a process is?
4. Can you describe one?
5. Do you know what the photosynthesis process is?
6. Do you know who discovered it?
C Share and compare the answers with your classmates, after that, make a chart with the
information and also explain what a process is.Work in teams.
Lesson 2
Nature: Incredible Secrets
When we have to talk
in front of a group, we
usually get nervous, but,
don’t worry! Here you
have some phrases that
could save you:
• I almost forgot to say…
• What I’m trying to say
is…
• So, the main point is…
• I don’t know the right
way to put this but…
Remember, don’t be afraid
to talk and try it!
Just by asking we are able
to know more.
HEY!
1. garlic
2. basil
3. dandelion
4. celery
5. coffee
6. onion
7. asparagus
8. lemon

9
Don’t forget you can
help yourself consulting
a dictionary if there are
words that you don’t
HEY!
You can play games; write
sentences, play spelling
contests with your friends,
find their meanings, etc.
HEY!
Vocabulary
A Choose from the box the word that completes the sentences.
genetic modification global warming solar energy solar panel chemistry
adequate herbivore nutrient fructose glucose
1. is the increase in the average temperature of the Earth’s air
and oceans.
2. An organism that eats mainly plants is an .
3. The is the chemical produced by many plants during photosynthesis.
4. A is a substance that an organism needs for energy, growth, and life.
5. The radiation from the sun is also called .
6. A is a group of cells that converts sunlight into electricity.
7. The is a sweet type of sugar found in many fruits and honey.
8. The process of altering the genes of an organism is known as .
9. When something is suitable or good enough it is also .
10. is the study of the atoms and molecules that make up different substances.
B Word search. Find the following words in the letter box.
C Find the meaning of the words in exercise B, compare your results with your classmates,
after that, find an image that represents each word and its definition.
A S S Q W E R T Y U I R G O P A S F
Q L U C M F G H E S T A E G R T O R
T E G D E R T S V U U D D B E P E P
E D A A T E F C O J G I F N Z V O B
D G R Q E Q W E R Y U O T S I L L V
I T A F V B S R G H K A Y K L T O C
O Y H R N V X D R R U C O U I R B D
N U J T A D S F G J K T T G T E E U
M O L E C U L E F O P I A A R S R L
A B T Z C A T R E S O V S T E D A O
Y J R P Z X C V B N G E T R F A S Y
U I E H Q W E R T Y U I O A S D F T
P Y S Y P L A N T E S T G U I K D F
L T A E A S D F G H J K I O L P M B
F S C D B I O C H E M I S T E R D U
G P O U Y T R E W Q A S D F G H J D
R E N E W A B L E R E S O U R C E R
Q S D F T H J I K L O P C A D F M Y
A F C O N T R A P T I O N Z L O U H
Z X C V B N M K J U H Y R E A S D G
1. algae
2. biochemist
3. sugar
4. renewable resource
5. plant
6. radioactive
7. pollution
8. molecule
9. fertilizer
10. contraption

10
Reading
A Read the following text and underline the main ideas and key words.
Don’t forget! Try to do
these actions when you
read:
Those actions will help
the reading.
HEY!
How plants use the Calvin Cycle to make sugar out of thin air.
The Calvin cycle is a process that plants and algae use to turn carbon dioxide from the air
into sugar, the food autotrophs need to grow. Every living thing on Earth depends on the
Calvin cycle. Plants depend on the Calvin cycle for energy and food. Other organisms,
including herbivores such as deer, depend on it indirectly. Herbivores depend on plants for
food. Even organisms that eat other organisms, such as tigers or sharks, depend on the
Calvin cycle. Without it, they wouldn’t have the food, energy, and nutrients they need to
survive.
For centuries, scientists knew that plants could turn carbon dioxide and water into sugar (carbohydrates) using light
energy—a process called photosynthesis. However, they didn’t know exactly how this was accomplished. Fifty years
ago, biochemist Dr. Melvin Calvin figured out the photosynthetic process from his lab at the University of California
at Berkeley. The Calvin cycle is named after Dr. Calvin.
In a wooden building on the Berkeley campus called The Old Radiation Lab, Calvin grew green algae. Green algae are
aquatic organisms that use photosynthesis. Calvin placed the algae into a contraption he called “the lollipop.” Calvin
shone light on the lollipop and used a radioactive form of carbon called carbon-14 to trace the path that carbon took
through the algae’s chloroplast, the part of the cell where photosynthesis occurs. By this method, he discovered
the steps plants use to make sugar out of carbon dioxide.
Steps in the Calvin Cycle
The Calvin cycle has four main steps. Energy to fuel chemical reactions in this sugar-generating process is provided by
ATP and NADPH, chemical compounds which contain the energy plants have captured from sunlight.
In step one, a carbon molecule from carbon dioxide is attached to a 5-carbon molecule called ribulose biphosphate
(RuBP). The method of attaching a carbon dioxide molecule to a RuBP molecule is called carbon fixation.
The 6-carbon molecule formed by carbon fixation immediately splits into two 3-carbon molecules called
3-phosphoglycerate (3-PGA).
In step two, 3-PGA is converted into glyceraldehyde-3-phosphate (G3P), a chemical used to make glucose and other
sugars. Creating G3P is the ultimate objective of the Calvin cycle.
In step three, some of the G3P molecules are used to create sugar. Glucose, the type of sugar produced by
photosynthesis, is composed of two G3P molecules.
In step four, the G3P molecules that remain combine through a complex series of reactions into the 5-carbon molecule
RuBP, which will continue in the cycle back to step one to capture more carbon from carbon dioxide.
Nobel Prize Winner
Melvin Calvin published “The Path of Carbon in Photosynthesis” in 1957. The key to understanding what was
going on in the chloroplast came to him one day while “waiting in my car while my wife was on an errand,” he said.

11
Remember!
the information.
HEY!
B Choose the correct ending for the following sentences.
is called chloroplast
turn carbon dioxide from the air into sugar
carbon dioxide and water into sugar
make sugar out of carbon dioxide
food, energy, and nutrients they need to survive
use photosynthesis
carbon fixation
1. The Calvin Cycle is a process that plants use to .
2. Without the Calvin Cycle plants wouldn’t have the .
3. Plants could turn .
4. Green algae are aquatic organisms that .
5. The part of the cell where photosynthesis occurs .
6. With the Carbon-14 method the steps plants use to
were discovered.
7. The method of attaching a carbon dioxide molecule to a RuBP molecule is called
.
Calvin realized the way in which plants turn carbon dioxide into sugar wasn’t a
straightforward one. Instead, it worked in a circular pattern. For discovering how
plants turn carbon dioxide into sugar, Melvin Calvin was awarded the Nobel Prize
for chemistry in 1961. Time magazine nicknamed him “Mr. Photosynthesis.” Calvin
received the National Medal of Science from President George H. W. Bush in 1989.
He published his autobiography, “Following the Trail of Light,” in 1992. He died on
January 8, 1997, in Berkeley, California.
Understanding the Calvin Cycle
Understanding how the Calvin cycle works is important to science in several ways.
“If you know how to make chemical or electrical energy out of solar energy the way
plants do it—without going through a heat engine—that is certainly a trick,” Calvin
once said. “And I’m sure we can do it. It’s just a question of how long it will take to solve the technical question.” Melvin Calvin’s
research into photosynthesis sparked the U.S. government’s interest in developing solar energy as a renewable resource.
Today, the U.S. Department of Energy researches the uses of photovoltaic cells, concentrated solar energy, and solar water
heaters. Photovoltaic cells are made of semiconductors that convert sunlight into electricity. Photovoltaic cells are often grouped
together to form large solar panels. Solar panels can help provide electrical energy for homes and businesses. Concentrated solar
power focuses the sun’s heat to run generators that produce electricity. Solar water heaters provide hot water and space heating
for homes and businesses. Scientists are also developing ways to increase carbon fixation, the first step in the Calvin cycle.
They are doing so mostly by genetic modification. Increasing carbon fixation removes excess greenhouse gases—mostly
carbon—from the atmosphere. Greenhouse gases contribute to global warming. Understanding photosynthesis could also
increase the crop yields for many plants.
“Our understanding of photosynthesis, and the factors that increase it, such as the length of a growing season and adequate plant
access to water in the soil, guides our development of perennial versions of grain crops,” says Jerry Glover of the Land Institute in
Salina, Kansas. Perennial plants come back year after year, while annual plants last only one growing season. Glover’s research
shows that perennial grains are more environmentally friendly than annual grain crops. They use less water and fertilizer, and
their deeper root systems mean they hold onto the soil better. This leads to less runoff and less pollution into lakes and streams.

12
C Underline the correct answer.
1. Is the type of sugar produced by photosynthesis:
A. glucose B. fructose C. sucrose
2. Melvin Calvin published “The Path of Carbon in Photosynthesis” in:
A. 1961 B. 1957 C. 1976
3. M. Calvin was awarded the Nobel Prize for Chemistry in:
A. 1961 B. 1957 C. 1976
4. In 1989 “Mr. Photosynthesis” received the:
A. Following the Trail of Light Prize B. Nobel Prize for Science C. National Medal of Science
5. Photovoltaic cells are made of:
A. sunlight B. electricity conductor C. semiconductor
Writing
A Look out the steps in the Calvin Cycle and illustrate them. Present your work to your class.
B Underline all the new words that you learn in the reading “Sweet Secret,” ﬁnd their
deﬁnitions, compare your words with your classmates and make a glossary from the
reading. Put it in your classroom.
C Do the following statements agree with the information in the reading passage? Write, YES if the statement agrees with
the information, NO if the statement contradicts with the information, and NOT GIVEN if it is impossible to know it with
the information in the reading passage.
1. No one who diets is fit, because dieting hurts your metabolism.
2. Diets make us gain weight.
3. A person’s highest weight is called set-point weight.
4. Being thin is a risk for health.
5. Being fat causes diabetes and hypertension.
6. Health at Every Size focuses on weight and health.
7. Make exercise is an excellent option to get health.
8. Intuitive eating means learning to listen to your body when you’re hungry and when you’re full.
Remember:A cycle is a
process that repeats itself
over and over again.
HEY!

13
D Go online and research about another process that you find amazing.Take notes and write down your source, such as
the website.Work in teams of four. Using your notes, prepare a presentation. Don't forget to illustrate your presentations
with images or you can either prepare a Power Point presentation.You can begin here: www.nationalgeographic.com
Listening
In the last pages, you have read about scientific and health matters. In this section, you will learn the correct pronunciation of
new vocabulary related to these topics.
A Check the words that are similar to words in Spanish.Then listen and repeat. Track 4
challenge collaboration convention creativity
development effectivity idea implementation
problem process solution strategy
B Now, look up the meaning of the words above in the dictionary. Listen again and write
the words as you hear them.
1. something that ends a problem successfully
2. to work with others to achieve something
3. a difficult task
4. a thought, plan, or suggestion
5. a clever plan or method to achieve a goal
6. a series of steps to achieve a specific goal
7. producing a desired result
8. the process of growing or causing something to improve
9. something that is difficult to deal with
10. an approved way of doing things
11. when something is put to use or work
12. the ability to think new ideas and make new things
C Write at least five sentences using the vocabulary mentioned in the recording.

14
Speaking
A How many objects are recyclable? Look up
the picture and make a list.
B Ask and answer the following questions with a partner and write your answers.
1. Do you know what recycling is?
2. Do you recycle?
3. What kind of objects do you recycle?
4. What do you do with those things?
5. What do you think an ecological footprint is?
6. What can we do to help to reduce our ecological footprint?
7. How can we help to save the natural resources of the planet?
8. Do you do your part?
C Share and compare the answers with your classmates, after that, together make a
graphic with the information and display it in a public place of your school.
HEY!
If you don’t know about
an object, you can ask for
information about it using
some of the following
questions:
• Could you describe it?
• What does it do?
• What’s it used for?
• What’s it made of?
Just asking we are able to
learn new things.
HEY!
Lesson 3
Can You Believe It!

15
Vocabulary
A Link the words with their correct meaning.
1. Aquifer a. large building used for storing goods.
2. Ingenious b. resource that can replenish itself at a similar rate to its use by people.
3. Mineral c. composed of living or once-living material.
4. Organic d. very clever or smart.
5. Conservation e. a building or room that serves a specific function.
6. Engine f. an underground layer of rock or Earth which holds groundwater.
7. Facility g. inorganic material, such as a rock, that has characteristic chemical
composition and specific crystal structure.
8. Renewable resource h. machine that converts energy into power or motion.
9. Treated sewage i. management of a natural resource to prevent exploitation,
destruction, or neglect.
10. Warehouse j. wastewater that has had most toxic materials removed by physical and
chemical processes. Treated sewage is not safe to drink or bathe in.
B Match the words with the pictures that represent them better.
1. salt 2. hangar 3. steel 4. molecule 5. groundwater
6. propel 7. mountain range 8. raw sewage
C Write sentences using the words of Exercise B.
You can play games; write
sentences, play spelling
contests with your friends,
ﬁnd their meanings, etc.
HEY!

16
Reading
A Read the following text, underline the main ideas and key words.
Don’t forget! Try to do
these actions when you
read:
the reading.
HEY!
From Toilet to Tap
System transforms sewer water into drinking water.
Holding a plastic cup within the Orange County Water District’s Groundwater Replenishment System
(GWRS), program manager Shivaji Deshmukh announces a fact that might make some people’s
stomachs turn. “An hour and a half ago, this was treated sewage,” he says. “A day ago, it was raw sewage.”
Having complete faith in the project and its end result, Deshmukh then downs the water without
blinking. An ingenious method to fight California’s water shortage, the GWRS takes an unlikely
resource—sewage flushed down the toilets in Southern California’s Orange County—and transforms it
into drinking water that exceeds all state and federal drinking water standards.
Before taking the gulp of refreshing purified water, Deshmukh led me on tour of the facility, which took
about an hour, the approximate amount of time it takes the treated sewer water to pass through three
processes before becoming drinkable. Costing $480 million to construct, the state-of-the-art water
purification project has been up and running since January 2008. The Groundwater Replenishment
System is in an ideal location: just feet away from the Orange County Sanitation District (OCSD), where
the sewage from north and central Orange County is treated. Every day, OCSD sends a third of their
water over to the GWRS through a half-mile long, 96-inch pipe. Orange County Sanitation District
public affairs manager Michael Gold explains the kind of water his neighboring facility receives: “When
it comes in [to the OCSD], it’s dirty,” he says. “It’s smelly. It’s full of viruses and junk. As it comes out of our
plant, it looks clean, but it’s not clean enough to swim and bathe in.”
Currently, OCSD sends about 70 million gallons of treated sewer water over to the GWRS every day.
Gold says that amount of water is roughly enough to fill up nearby Anaheim Stadium, home to Major
League Baseball’s Los Angeles Angels of Anaheim.
Three Processes
After OCSD sends treated water to the GWRS, it undergoes three processes to make it drinkable:
microfiltration, reverse osmosis, and ultraviolet disinfection. The first process is microfiltration.
Deshmukh said this gets rid of bacteria, protozoa, and suspended solids in the liquid by pushing it
through a series of fiber membranes filled with tiny, hollow tubes. He compared it to drinking iced soda
through a straw. The pollutants are like the ice, which is too large to be drawn up through the straw.
The water is propelled through the microfiltration membranes with giant, 600-horsepower engines.

17
Following microfiltration, the water sits in a large holding tank shaped like a rocket ship.
Standing outside a sleek, modern building that resembles an airplane hangar, Deshmukh looked toward
the structure, which was marked with large lettering: Reverse Osmosis. “This R.O. plant is one of the biggest
in the world,” Deshmukh said. Inside, the facility looks like a warehouse filled with stacks of plastic pipes.
“The water we get here has been microfiltered, but now we have to take the organics, the pharmaceuticals, the
viruses and salts out of the water,” Deshmukh said. During reverse osmosis, specially made plastic sheets
allow the passage of water while harmful material as small as a molecule is separated out. “This is the heart
of the treatment process,” Deshmukh explained. “This allows us to make the water potable.”
In reverse osmosis, the water is pushed through the plastic sheets by 1,000-horsepower engines. The
program manager insists that the energy used in treating the water is worthwhile when compared to other
methods of supplying Orange County with water. One popular method is shipping water from northern
California. “Reverse osmosis uses a lot of energy, but when you compare it to pumping water over a mountain
range [the Sierra Nevada], it’s less,” he said.
After Deshmukh taught me about the reverse osmosis process, we stepped outside into the Orange County
sun and walked towards the final stage the former sewer water had to be put through. We stopped at a
series of steel cylinders that are filled with ultraviolet light bulbs. Ultraviolet disinfection destroys any of
the water’s remaining viruses. “This is the last step,” Deshmukh said. “After this, we actually add minerals
back to the water.”
Aquifers
It’s here where Deshmukh and I tip back our plastic cups filled with the newly treated water and drink in a
liquid that may have been swirling around a toilet bowl just a day ago. But this water actually has months
to go before it will flow out of any of Orange County’s taps. Half of the water treated by GWRS is injected
into Orange County’s seawater barrier. The barrier, a series of wells that function like a dam, helps keep
the region’s aquifers, or underground freshwater supply, from being overtaken by seawater from the nearby
Pacific Ocean. The other half of the water is pumped thirteen and a half miles up into Anaheim, where
it is discharged into several lakes. From there, it joins the region’s rainwater and settles into aquifers as
groundwater. In approximately six months, the groundwater is chlorinated by the cities of Orange County
and sent to taps for personal and business use. Currently, Orange County Water District treats 70 million
gallons of water every day. This amount of high-quality water can meet the annual water needs of 500,000
people.
In addition to creating a renewable source of fresh water for the area’s growing population, another benefit
is that the GWRS reduces the amount of treated wastewater discharged in the Pacific Ocean. Though
the initial idea of drinking reclaimed water might make some stomachs turn, the success of Orange
County’s Groundwater Replenishment System has caused a turn in California’s thinking about the idea of
transforming sewer water into drinking water. This change has resulted in a series of proposals for similar
facilities across the state.

18
Remember!
A cycle is a process that
repeats itself over and
over again.
HEY!
B Which paragraph contains the following information? Find the information and number
the paragraph in the text in order to give your answer.
1. The approximate amount of time it takes the treated sewer water to pass through
three processes before becoming drinkable is 1 hour.
2. OCSD sends about 70 million gallons of treated sewer water every day.
3. Microfiltration, reverse osmosis and ultraviolet disinfections are the three
processes to make the water drinkable.
4. The heart of the treatment process is reverse osmosis.
5. The last step in the process is ultraviolet disinfection.
C Do the following statements agree with the information in the reading passage? Write,
TRUE if the statement agrees with the information, FALSE if the statement contradicts
the information, and NOT GIVEN if there is no information on this.
1. The O.C. Water District’s Water Factory 21 was the first facility to
use reverse osmosis to make municipal sewer water into purified
drinking water.
2. The first step of the process is microfiltration.
3. Shivaji Deshmukh is the inventor of the process.
4. GWRS means Groundwater Replenishment System.
5. The clean and treated water goes directly to the Orange
County’s taps.
6. Orange County District consumes 70 million gallons of water
every day.
8. The GWRS reduces the amount of treated wastewater discharged in the Pacific
Ocean.
9. The Groundwater Replenishment System will begin processing treated sewer
water in January 2018.
Writing
A Look through the text again and write down the information on the three steps of the
process and illustrate them. Present your work to your class and explain the process.
B Do you know who Shivaji Deshmukh is? Work in groups of four.
Go to www.nationalgeographic.com and get some information about him. Find out how
many cities are using technology and how Mexico could beneﬁt from using technology.
With the information found, give a presentation to your class. Remember to illustrate your
presentation.
Remember!
the information.
HEY!

19
Listening
Have you been abroad? What is your favorite place in the world? If not, what is your favorite place in your country? Did you
know that all those beautiful places are in serious danger? Recycling can be the solution to all these places in risk.
A Listen to the conversation.What places do the speakers want to visit? Number the pictures
in the order you hear the name of the places where you can see these sights. Track 5
B Listen again and match the questions to the answers. Track 6
1. Why does Ines want to visit New York? a. Because he likes sports and adventure.
2. Why does Carlos want to visit Rome? b. Because he likes pizza and spaghetti.
3. Why does Tere want to visit London? c. Because she likes wild animals.
4. Why does Amalia want to visit Africa? d. Because he likes science.
5. Why does Nacho want to visit Australia? e. Because she likes economics.
6. Why does Oscar want to visit Antarctica? f. Because she likes shopping and theater.
C Listen for the short /i/ sound.What sound do you hear in each word? Check the
correct column. Track 7
long e sound short i sound
this
these
he’s
his
ship
sheep
meet
mitt
STATUE OF LIBERTY ANTARCTICAULURU (AYERS ROCK)
AFRICAN SAVANNAHBIG BENCOLOSSEUM

20
Speaking
A Identify the actions in the pictures and match them with the sentences 1 to 8.
B Ask and answer questions 1 to 8 with a partner and take notes of your answers.
1. How often do you exercise?
2. Do you know your weight?
3. And your size?
4. Do you know what healthy habits means?
5. Have you ever been on a diet?
6. How healthy are your meals?
7. How healthy are the habits of your family?
8. What about your friends?
C Read and compare the answers with your classmates.Take notes of your classmates’
answers and make a graphic with the information.
Remember!
If you have a difﬁcult
question you can buy
yourself some time by
using some of these
beginning lines:
• Let me see…
• I haven’t thought about
that question before…
• I’m not quite sure what
to say here…
Search for more beginning
lines!
HEY!
1. My brother is training
for the big race.
2. Let’s play basketball
with them!
3. My mom loves to hike
in open spaces.
4. All the children are playing
in teams in the back yard.
5. I’m new in here and I want
to start training.
6. The teacher is really strong.
7. We can get exercise in our
vacation.
8. My brother plays in the school’s
soccer team.
Lesson 4
Good Health, Happy Life

21
know and you can also
try free web pages
that help you with the
pronunciation.
HEY!
Vocabulary
A Crossword
B Match the following words with their meanings.
1. Cholesterol a. to inspire or support a person or idea.
2. Indicator b. medical condition where excess body fat
increases risk for disease and death.
3. Genetics c. to strain or put pressure on.
4. Hypertension d. the study of heredity, or how characteristics
are passed down form one generation to the next.
5. Obesity e. natural chemical that helps regulate metabolism.
6. Stress f. high blood pressure, usually defined as more than 140/90.
7. Encourage g. sign or signal.
C Ask and answer the following questions with a partner. Explain what the words in
italics mean.
1. Have you ever practiced cardiovascular exercise?
2. Do you sometimes feel lethargic?
3. Does your food have enough nutrients?
4. Can you recognize healthy food?
5. Do you know what is the Body Mass Index?
Horizontal
1. Process of studying a problem or situation,
identifying its characteristics and how they
are related.
2. Unit of energy from food, equal to the amount
of heat required to raise the temperature of
one kilogram of water by one degree Celsius.
3. Pressure of the flow of blood against arteries
and veins.
4. Physical desire for food.
5. Process of choosing food and drink in order
to lose weight.
Vertical
1. Capacity to do work.
2. Disease where the body is unable to produce
or regulate certain types of carbohydrates.
3. A harmful condition of a body part or organ.
4. Having a desire or need for food or nutrition.
5. Process by which living organisms obtain food
or nutrients, and use them for growth.
2
1
2
5
1
4
3
5
4
3

22
Reading
A Read the following text and underline the main ideas.
Try to do these actions
when you read:
the reading.
HEY!
Live healthy without dieting
Health at Every Size (HAES) is a lifestyle that encourages healthy eating and
enjoyable activity as a way to feel better and live longer. Unlike other programs,
it does not believe weight loss through dieting is the way to become healthy.
Scientific evidence supports this idea. In a 2006 study by researchers at the U.S. Department of
Agriculture, 78 obese women were placed into either the Health at Every Size program or a traditional
weight-loss program. Women in the weight-loss program were instructed to eat less, count calories and
exercise more.
The Health at Every Size group was encouraged to eat when they were hungry and to appreciate the
feeling of fullness, to make healthy food choices, and to find a style of physical activity that was most
enjoyable for them. They were not given a list of “forbidden foods,” nor were they told to exercise to lose
weight. They were also given techniques to build their self-esteem and to increase the confidence they
had in their bodies.
After two years, both groups weighed approximately the same. The women in the weight-loss group lost
some weight after six months, but regained it after two years. The women in the Health at Every Size
group had healthier blood pressure, lower cholesterol, and were more physically active than the dieting
group. The study’s results came as no surprise to Linda Bacon, researcher and author of Health at Every
Size: The Surprising Truth About Your Weight. Bacon holds a Ph.D. in physiology with a focus on nutrition
and weight regulation.
“Health at Every Size is about taking care of your body without worrying about whether you’re ‘too’ big or
small,” she says. “People might think they can tell who’s fit and who’s not by looking at them, but in fact,
it’s trickier than that. Lots of people are fat and fit—many avid dancers, runners, lifters, and sports team
members are big to start with and stay that way. They tend to be far healthier than thin people who don’t
move around much or eat a nutritious mix of foods.” “Saying everybody needs to be the same weight is like
saying all people should be the same height.”
Diets Don’t Work
Your body’s weight is determined by genetics. Like height or skin color, weight and body type vary from
person to person. A person’s ideal weight range is called their set-point weight. Your set-point weight
is controlled by a part of the brain called the hypothalamus. The hypothalamus regulates the body’s
feeling of hunger and satiety—the full feeling you get after you’ve eaten a meal. One of the jobs of the
hypothalamus is to keep you as close to your set-point weight as possible.
When you go on a diet and lose weight, your hypothalamus interprets the sudden weight loss as a
problem somewhere in the body. It will do whatever it can to get you back to your set-point weight. The
hypothalamus will release hormones to increase your appetite. It will slow down your metabolism, so
you don’t lose weight quickly. It will even make you feel more lethargic, or sluggish, and less likely to
exercise. Dieting can backfire by resetting your set-point weight at a higher level, to protect your body
against the sudden changes of future diets. “No one who diets is fit,” Bacon says, “because dieting hurts your
metabolism, and your metabolism determines how your body uses energy.”

23
“But diets not only don’t work—they’re making us fat. Scientific studies show that if your weight ‘yo-yos,’ if it
goes up and down a lot, that leads to long-term weight gain, especially when you’re young. Teens’ and preteens’
metabolisms are trying to figure out what their adult pattern will be. Diets interfere with that. People with stable
weights, even high ones, often enjoy better health than dieters and ex-dieters.”
Fat Isn’t the Problem
In 2004, the Journal of the American Medical Association reported that 400,000 obese and overweight
Americans die every year. That’s the information it got from the Centers for Disease Control and Prevention
(CDC).
However, the CDC later learned that the methods by which it got those numbers were faulty. When it re-did
the report with better methods and new data, just 26,000 overweight or obese people a year died—fewer
than the number who died due to guns, alcohol, or car accidents. The deaths were typically from people who
had a body mass index (BMI)—a measure of body fat based on height and weight—greater than 35. Most
overweight people are in the lower range, from 30 to 35.
In fact, life expectancy in the United States has risen—along with the obesity rate—from 70.8 years in 1970
to 78.2 in 2009. In its revised study, the CDC found that overweight people actually live longer, with 86,000
fewer deaths in the overweight category than in the normal weight category. And underweight people died
more often than either overweight or obese people, suggesting that the thinnest people in the U.S. may be at a
greater health risk.
In Health at Every Size, Bacon writes, “Many well-meaning scientists and medical practitioners are misled about
the ill effects of being heavy. There is clearly a correlation between obesity and certain diseases and conditions,
like diabetes or hypertension, but that doesn’t mean being fat causes these conditions. It may be that whatever
causes the diabetes also causes people to gain weight.”
“To help explain this, one example I like deals with bald men and heart disease: Influential studies show that
men with hair loss are more likely to have heart attacks. Does that mean going bald causes heart attacks?
And can keeping your hair (or getting hair transplants) protect against cardiovascular disease? Well, of course
not! After research and analysis, the baldness-heart risk association still isn’t totally clear, but it appears that
testosterone—which can cause both baldness and heart problems—is a likely culprit. In other words, fat isn’t the
problem. When we see diseases that are more common in fatter people, it’s more about what they’re doing, than
they’re fat. So the key is to make healthy changes in what you do and stop worrying so much about weight.”
Health at Every Size
Health at Every Size focuses on health, not weight, as an indicator of your overall well-being. But if weight
isn’t a measurement of our overall health, how do we know we’re healthy? Bacon says, “Weight distracts us,
and this focus results in poor medical care for everyone. ‘Normal weight’ people—who may have poor health
habits and disease—don’t get good diagnoses or support for changing habits, which may catch up with them.
People in the overweight and obese categories get stigmatized, encouraged in restrictive eating—even if they
may actually have great health habits to begin with. Perhaps this could be a better focus for medical care—
interviewing people about whether they have social support and manage stress well, whether they are regularly
active, if they eat well.”
“What’s good for thin kids, fat kids and everyone in between, it turns out, is moving their bodies and a healthy
mix of foods that taste good and nourish our bodies. Finding activity you enjoy might mean sports or workouts,
but it could also be walking, jumping rope with friends, or dancing.”
“With eating, Health at Every Size calls for intuitive eating. This means learning to listen to your body so you can
recognize when you’re hungry and when you’re full, and what foods satisfy you. You don’t get as many nutrients
from food when you don’t enjoy it, so do take care to choose foods you love. Sugar and candy can taste great, but
they don’t give you other nutrients your body needs, and you’ll find that you can get grumpy, tired, and don’t do
so well in school if that’s all you eat. And if you skip the fruit and veggies, you’ll probably find yourself struggling
in the bathroom too long, so you don’t want to avoid those. So mix it up and get a range of nutrients in you to
keep your body function best and to keep you most alert and in a good mood. Experiment with food to see which
ones make you feel best.”

24
Looking out for
information?
Skim the text if you are
looking for a general idea
or quickly overview the
information.
Scan the text if you are
looking for key words or a
particular answer.
HEY!
B Complete each sentence with the correct ending.
1. Health at Every Size is a program that encourages a. but how healthy you are in your own size.
2. In Health at Every Size the women were instructed to b. and not by how much you eat or what
you eat.
3. In HAES it is not important how much weight you lose, c. your metabolism slows down.
4. Your body’s weight is determined by genetics d. eat healthy and practice physical activity and
they were not given a list of forbidden foods.
5. When you go on a diet and lose weight, e. healthy eating and enjoyable physical activity
in order to live longer and feel better.
6. The Health at Every Size plan doesn’t f. they’ll lead us to a healthy mix of foods
and signal when we’ve had enough.
7. If we trust our bodies and learn to listen to our appetites, g. put restrictions on the foods a person eats.
C Which paragraph contains the following information? Find the information and number
the paragraph in the text in order to give your answer.
1. Health at Every Size is about taking care of your body without worrying about
whether you’re too big or small.
2. When you go on a diet and lose weight, your hypothalamus interprets the sudden
weight loss as a problem somewhere in the body.
3. The life expectancy in the United States has risen.
4. The key is to make healthy changes in what you do and stop worrying so much
about weight.
5. Weight distracts us, and this focus results in poor medical care for
everyone.
6. You don’t get as many nutrients from food when you don’t enjoy it.
7. Sugar and candy can taste great, buy they don’t give you other nutrients your body needs.
Bacon also recommends trying a range of foods to find ones that you enjoy. “What I find even more interesting is
that research supports that people actually absorb more nutrients from meals that appeal to them than from meals
they find less appetizing.” “In one interesting study, researchers fed a traditional Thai meal of rice and vegetables spiked
with chili paste, fish sauce, and coconut cream to two groups of women, one Swedish and one Thai. The Thai women,
who presumably liked the meal better than the Swedish women, absorbed 50 percent more iron from the same food
than the Swedish women. And when the meal was blended together and turned to an unfamiliar and unpalatable
paste, the Thai women’s absorption of iron from the meal decreased by 70 percent! So choking down the plate of
steamed broccoli (if you hate steamed broccoli) is not likely to do you as much good as you think. Enjoying your food is
an important nutritional practice.”
The Health at Every Size plan doesn’t put restrictions on the foods a person eats. Rather, it places more trust in the
person to select foods that are right for them, and to stop eating when they feel full. Bacon says, “Have you ever
noticed that, when you hear you can’t have something—like ice cream, say, or chips—you want it all the more? Health
at Every Size gets rid of ‘in’ and ‘out’ lists for food. If we trust our bodies and learn to listen to our appetites, they’ll lead
us to a healthy mix of foods and signal when we’ve had enough. When you can eat what you want and need, cravings
and the munchies aren’t such a problem, and you’re no longer in danger of eating out of control.” Bacon writes, “What
no one needs, at any size, is to feel bad about how they look or what they weigh. People who live by Health at Every Size
ideas tend to feel better about themselves, and that can lead to better health, too, with less stress and disordered eating.”

25
Writing
A What were the results of the 2006 study made by the U.S. Department of Agriculture? What was the study about? What was
reported by the Journal American Medical Association in 2004? Has that information changed? Using these questions as a
beginning, check the information about those studies and explain them to your class using one or more graphs that show
the information.
B Search for information about the HAES programs at: http://www.haescommunity.org.Then make a similar program to
apply in your school.With the information you get, prepare a presentation as a group. Present this program to your
Principal, authorities and all the people in your school. Use all kind of resources you want (illustrations, pictures, images,
Power Point presentations, etc.) in order to convince them to apply it.
Listening
A Listen to the conversation.Who orders what? Write the names next to the pictures. Track 8
1. 2. 3.
B Listen again and complete the chart. Track 9
Amalia Inés Tere
Likes
Dislikes
C Compare your answers with those of a partner.
D Listen and repeat. Notice the intonation on the items in the lists. Track 10
I like bananas , apples , oranges ,and pears . I don’t like onions , broccoli , spinach , or eggplant .
E Listen and practice reading these sentences with a partner. Track 11
1. To make spaghetti you need pasta, tomatoes, onions, garlic, and herbs.
2. To make pizza dough you need flour, water, yeast, oil, and salt.
3. I like eggs, bacon, cheese, and fruit for breakfast.
4. She doesn’t like eggs, fish, yogurt, or cream.
Don’t forget! There are
different kinds of graph:
• Line graph
• Pie chat
• Bar Chart
• Comparative chart, etc.
Choose the one that ﬁts
you better and like more!
HEY!

26
M
odule
2M
ule
2
How to Express Your Own Ideas
A Look at the questions and think how you can express your ideas. Focus on answering
and debating the questions with two classmates.
1. What are the most common human threats you have lived / seen in your
community? Explain them.
2. Is overfishing a problem in your community? Have you recently heard of any
specific fish species that has been overfished?
3. What species are not allowed to be hunted or fished in your community? Why?
How do you think it happened?
4. What kind of pollution is your community living? Give some consequences of it.
5. Who are the most famous stakeholders you know that protect animals? How do
they contribute to save nature? Give some examples of stakeholders that work in
pro of animal or nature in your community.
B In groups of three, prepare a presentation.You have up to 10 minutes to talk about
a human threat explaining what it is, how it is caused and how it can be prevented
or controlled.
Lesson 1
Negative Impact of Humans
in the Environment
If you want to express
your ideas you could use
one of these sentences:
• In my opinion, I think
that…
• In ﬁrst instance I can say
that…
• In my own words, I
would say that…
• Personally, I think …
• I want to start saying
that…
HEY!
Speaking

27
Vocabulary
Human Impact in Marine Enviroments
A The pictures show different actions humans have carried out impacting marine environments negatively. Match the
pictures with the correct word from the textbox.
1. coastal development 3. human threats 5. marine ecosystems 7. ocean
2. oversfishing 4. pollution 6. stakeholders
B Complete the sentences using the vocabulary from the textbox.
1. have given millions of pesos in order to rescue turtles in Mexican beaches.
2. The Atlantic is the second-largest of the world's oceanic divisions.
3. The factories in my city are producing a lot of smoke so air is not as fresh as usual. Air is
becoming a real problem now in my city.
4. Cozumel is well-known for the beauty of its diversity of .
5. Progreso has been having a lot of . There are many more hotels, restaurants and places to
relax. Nature has been invaded.
6. happens when fishermen fish more than it is needed.
7. Smoke, pouring contaminated water in the sea, nuclear substance leakage are examples of .
C Write one sentence for each vocabulary word from the previous exercise.
1. .
2. .
3. .
4. .
5. .
6. .
7. .

28
Reading
A Look at the highlighted words in the sentences below.What do you think their meanings are?
1. I was bitten in my lips by a bee. They are swollen.
2. The infection spread all over the city. Many people are being taken to hospitals.
3. The bacteria are sickening cows across the countryside.
4. Because of the burning, his skin is blistering and the serum smells really bad.
5. After the surgery, he got a 10 cm scar.
B Read the complete text and then together with a partner talk about the main idea.Try to explain the highlighted words,
compare the meanings with your partner.
A Primeval Tide of Toxins
Runoff from modern life is feeding an explosion of primitive organisms.
MORETON BAY, AUSTRALIA—The fireweed began each spring as tufts of hairy growth and spread across
the seafloor fast enough to cover a football field in an hour.
When fishermen touched it, their skin broke out in searing welts. Their lips blistered and peeled. Their eyes
burned and swelled shut. Water that splashed from their nets spread the inflammation to their legs and torsos.
"It comes up like little boils," said Randolph Van Dyk, a fisherman whose powerful legs are pocked with scars.
"At nighttime, you can feel them burning. I tried everything to get rid of them. Nothing worked."
As the weed blanketed miles of the bay over the last decade, it stained fishing nets a dark purple and left them
coated with a powdery residue. When fishermen tried to shake it off the webbing, their throats constricted and
they gasped for air.
After one man bit a fishing line in two, his mouth and tongue swelled so badly that he couldn't eat solid food
for a week. Others made an even more painful mistake, neglecting to wash the residue from their hands before
relieving themselves over the sides of their boats.
For a time, embarrassment kept them from talking publicly about their condition. When they finally did speak
up, authorities dismissed their complaints — until a bucket of the hairy weed made it to the University of
Queensland's marine botany lab. Samples placed in a drying oven gave off fumes so strong that professors and
students ran out of the building and into the street, choking and coughing.
Scientist Judith O'Neil put a tiny sample under a microscope and peered at the long black filaments.
Consulting a botanical reference, she identified the weed as a strain of cyanobacteria, an ancestor of modern-
day bacteria and algae that flourished 2.7 billion years ago. O'Neil, a biological oceanographer, was familiar
with these ancient life forms, but had never seen this particular kind before. What was it doing in Moreton
Bay? Why was it so toxic? Why was it growing so fast? The venomous weed, known to scientists as Lyngbya
majuscula, has appeared in at least a dozen other places around the globe. It is one of many symptoms of a
virulent pox on the world's oceans. In many places — the atolls of the Pacific, the shrimp beds of the Eastern
Seaboard, the fiords of Norway — some of the most advanced forms of ocean life are struggling to survive
while the most primitive are thriving and spreading. Fish, corals and marine mammals are dying while algae,

29
C Look at the deﬁnitions and match them with the correct words.
1. slime
2. tuft
3. welt
4. peel
5. fireweed
6. get rid of
7. blanket
8. fume
9. choke
10. cough
11. pox
12. struggle
13. peer
D Look at the words in the ﬁrst column of exercise C and classify them into nouns and verbs. Complete the table below.
Nouns Verbs
a) a plant that springs up on burned land.
b)look keenly or with difficulty at someone or something.
c) any of several viral diseases producing a rash of pimples that become
pus-filled and leave pockmarks on healing.
d)cover completely with a thick layer of something.
e) a moist, soft, and slippery substance, typically regarded as repulsive.
f) expel air from the lungs with a sudden sharp sound.
g) lose parts of its outer layer or covering in small strips or pieces.
h)make forceful or violent efforts to get free of restraint or constriction.
i) have severe difficulty in breathing because of a constricted or obstructed
throat or a lack of air.
j) take action so as to be free of (a troublesome or unwanted person or thing).
k)a red, swollen mark left on flesh by a blow or pressure.
l) gas, smoke, or vapor that smells strongly or is dangerous to inhale.
m)a bunch or collection of something, typically threads, grass, or hair, held or
growing together at the base.
n)gas, smoke, or vapor that smells strongly or is dangerous to inhale.
bacteria and jellyfish are growing unchecked. Where this pattern is most pronounced, scientists evoke a
scenario of evolution running in reverse, returning to the primeval seas of hundreds of millions of years ago.
Jeremy B.C. Jackson, a marine ecologist and paleontologist at the Scripps Institution of Oceanography in La
Jolla, says we are witnessing "the rise of slime."
For many years, it was assumed that the oceans were too vast for humanity to damage in any lasting way. "Man
marks the Earth with ruin," wrote the 19th century poet Lord Byron. "His control stops with the shore."
Even in modern times, when oil spills, chemical discharges and other industrial accidents heightened
awareness of man's capacity to injure sea life, the damage was often regarded as temporary.
But over time, the accumulation of environmental pressures has altered the basic chemistry of the seas. The
causes are varied, but collectively they have made the ocean more hospitable to primitive organisms by putting
too much food into the water. Industrial society is overdosing the oceans with basic nutrients — the nitrogen,
carbon, iron and phosphorous compounds that curl out of smokestacks and tailpipes, wash into the sea from
fertilized lawns and cropland, seep out of septic tanks and gush from sewer pipes.
From: www.latimes.com/news/la-me-ocean30jul30,0,818347.story

30
Writing
A Look at the paragraphs at the table. Identify the causes and the consequences.
Reading extract Cause Consequence
As the weed blanketed miles of the bay over the
last decade, it stained fishing nets a dark purple
and left them coated with a powdery residue.
When fishermen tried to shake it off the webbing,
their throats constricted and they gasped for air.
His mouth and tongue swelled so badly that he
couldn't eat solid food for a week.
When fishermen tried to shake it off the webbing,
their throats constricted and they gasped for air.
Samples placed in a drying oven gave off fumes
so strong that professors and students ran out
of the building and into the street, choking and
coughing.
Samples placed in a drying oven gave off fumes
so strong that professors and students ran out of
the building and into the street.
Negative Impact of Human Environment
B The bar graph below shows the number of perceived Causes of Pollution in Virginia's
Bay Basin and Southern Rivers Region. Summarise the information by selecting and
reporting the main features, and make comparisons where relevant.
0
10
20
30
40
50
41
34
37
35
43
26
23
15
13
9
Southern Rivers
Industrial
Waste
Litter
Garbage
Urban
Runoff
Logging Mining
Bay basin When we read and we are
trying to distinguish between
causes and consequences.
Example:
The fireweed began each spring
as tufts of hairy growth and
spread across the seafloor fast
enough to cover a football field
in an hour.When fishermen
touched it, their skin broke
out in searing welts.Their lips
blistered and peeled.Their eyes
burned and swelled shut.Water
that splashed from their nets
spread the inflammation to
their legs and torsos.
Cause: The fishermen touched
the fireweed
Consequences: fishermen
got sick.Their skin broke out
in searing welts.Their lips
blistered and peeled.Their eyes
burned and swelled shut.
HEY!

31
Listening
A Listen to the following narration. Track 12
Almost a quarter of the world’s population of 7 billion live in cities. In the last 60
years there has been a rapid growth in both the number and the size of cities. In 1950
there were less than 100 cities with 1 million people or less, whereas today there
are as many as 600. According to statistics 180,000 people move to a city every day.
In developing countries, in Asia and Africa in particular, cities are appearing and
growing at a dramatic rate. The population of these two regions alone is expected to
double over the next two decades.
This expansion of urban populations has given rise to the megacity, a city which has
10 million inhabitants or more. In 1950 New York and Tokyo were considered to be
the only two megacites, but today there are 23 in the world. (The largest is Tokyo
which has a population of over 36 million!)
The United Nations predicts that there will be 37 megacities by 2025, with most of
the new ones in Asia. More and more people are drawn to big cities because of the
opportunities, services, and facilities which they provide. In megacities there are
many benefits to modern urban living. There is work, housing, education, health
care, entertainment, sanitation, access to food and water, and power (such as gas
and electricity).
Yet this massive migration to megacities brings significant problems. Overcrowding,
pollution, crime, and traffic congestion are huge challenges which face megacities, as
well as other serious social issues like the number of slums, the homeless, and
poverty in general. The location of some megacities like Mexico City or New Dehli
makes them vulnerable to earthquakes, where major tremors would have devastating
effects, possibly killing thousands of people.
B Now, listen again and write T for TRUE if the statement agrees with the information given or F for FALSE if it doesn't.
1. Forty-five percent of the world’s population live in cities.
2. 180 thousand people move to a city every day.
3. The first two megacities were New York and Tokyo.
4. Today there are thirty seven megacities.
5. People want to live in cities for the services and benefits.
6. Megacities have solved the problems of modern urban living.

32
Speaking
A Which of the following ailments, symptoms and injuries do you know? Match the pictures with the words.
B Answer the questions with a partner.
1. When was the last time you didn’t feel well? What happened?
2. What are the symptoms of a diarrhea? A heart problem?
3. When you usually feel ill, you present some symptoms or when you are injured
you have some pain reactions. Have you ever been injured? What happened?
C Look at the questions and think about the last time you felt ill, remember the symptoms
you had and try to think about what caused that ailment.
1. When was the last time you felt:
a) a stomach ache? b) a headache? c) a fever?
2. What were your symptoms?
3. How do you think you got it?
D Talk with a classmate. Using the words in exercise A, talk about how the people in the pictures are feeling.
Lesson 2
Ailments, Symptoms and Injuries
1. headache
2. stomach ache
3. sore throat
4. fever
5. cold
6. cough
7. infection
8. rash
9. runny nose
10. bloody nose
11. diarrhea
12. burn
13. chest
14. pain
15. fain
16. dizzy
17. nauseous
18. vomit
19. bleed
20. twist
21. sprain
22. dislocate
23. scratch
24. scrape
25. bruise

33
E Look at the words in exercise A and decide which of them are ailments, symptoms or injuries.
Classify them into the box.
Ailments Symptoms Injuries
Vocabulary
A Find the hidden vocabulary words in the puzzle below. Complete the sentences to know which word is the correct one.
1. Last weekend I got a terrible because I got completely wet in the rain.
2. My mother can’t stand people . She immediately . She is scare of blood.
3. I my wrist while I was playing basketball.
4. I usually get a after work. I need to take two aspirins.
5. After the plane took off, I got a . I couldn’t believe how much blood I had in my face.
6. The tacos made me feel two hours after eating. Just a second before I realised I had a terrible
.
7. I shouldn’t have eaten so much chilli I am burping a lot. I think I have a .
8. I myself playing with matches. I shouldn’t have done it.
9. Oh my gosh! My shoulder just . I need a physician desperately.
10. I think I am allergic to this kind of fabric. I got a all over my chest and arms.
11. This makes me feel uncomfortable. I can’t stand this runny nose and this .
12. My dog my arm with his sharp nails.
13. I my knees when I fell on the floor.
X E E I S X P G S V A I N L O
F H Y L U S R E X N C U C W Q
N C X P G I U S Q A D M C H X
X A A G Z D H O R C R A G M Z
S H F Q S R I N E P F D N Q B
V C Y E A L N Y T S I W T S N
S A R J V K B D T S U V J A K
L M N A A E C O L D U A Y L J
S O R E T H R O A T S A N R A
Q T U B M C C L U C N O M T Q
G S B L E A H B R T X I X A Y
L C G E T D I A R R H E A E D
I B N E X A P A T T Q G J F A
U F H D Y E S H I L E P S N I
F B L G U H H A V E A H U L E

34
Reading
A Look at the extract from the reading and infer what it is about. Choose an answer and explain why.
The Leydons dread purplish-red algae Florida's Gulf Coast. The blooms send waves of stinking
dead fish algae produce toxins carried by the breeze.
1. A family that cultivates algae in Florida is a danger for the community.
2. A family that is afraid of algae because it’s killing fish and producing toxins.
3. A family that dreads purplish-red algae in Florida to sell dead fish.
4. A family that is taking advantage of algae grown in Florida to produce healthy
toxins to exterminate dangerous fish.
B Skim the text and identify which paragraph states that:
1. The children from the family can’t go out or hang out anymore.
2. The ages of the spouses.
3. The number of hours they drove to escape from danger.
4. The scientist community thinks modern society is contributing to create the
damage.
5. The man feels ill when he breathes the outside air.
6. Red tides occur more often than in past times.
Skimming is reading a
text to get the gist, the
basic overall idea, rather
than concentrating on
absorbing all the details.
For instance, many people
skim read a newspaper
article just to get a
quick overview, or a text
could be skimmed to see
whether it's worth reading
in detail.
Dark Tides, Ill Winds
With sickening regularity, toxic algae blooms are invading coastal waters. They kill sea life and send poisons ashore
on the breeze, forcing residents to flee.
LITTLE GASPARILLA ISLAND, FLA.— All Susan Leydon has to do is stick her head outside and take a deep
breath of sea air. She can tell if her 10-year-old son is about to get sick. If she coughs or feels a tickle in the back
of her throat, she lays down the law: “No playing on the beach. No, not even in the yard. Come back inside. Now.”
The Leydons thought they found paradise a decade ago when they moved from Massachusetts to this narrow
barrier island, reachable only by boat, with gentle surf, no paved roads and balmy air that feels like velvet on the
skin. Now, they fear that the sea has turned on them. The dread takes hold whenever purplish-red algae stain the
crystal waters of Florida’s Gulf Coast. The blooms send waves of stinking dead fish ashore and insult every nostril
on the island with something worse. The algae produce an arsenal of toxins carried ashore by the sea breeze.
“I have to pull my shirt up and over my mouth or I’ll be coughing and hacking,” said Leydon, 42, a trim, energetic
mother of three who walks the beach every morning. Her husband, Richard, a 46-year-old building contractor,
said the wind off the gulf can make him feel like he’s spent too much time in an over-chlorinated pool. His
chest tightens and he grows short of breath. His throat feels scratchy, his eyes burn, and his head throbs. Their
symptoms are mild compared with those of their son, also named Richard. He suffers from asthma and recurring
sinus infections. When the toxic breeze blows, he keeps himself — and his parents — up all night, coughing until
he vomits.
If the airborne assault goes on for more than a few days, it becomes a community-wide affliction. At
homeowners’ meetings, many people wear face masks.
HEY!

35
Writing can be easy and
even fun!
Get some more ideas on
how to do it!
Go to http://www.ehow.
com/how_5593721_write-
composition-paper.html
on How to Write a
Composition!
Writing
A Write about the following topic, give reasons for your answer and include any relevant
examples from your own knowledge or experience. Write at least 250 words.
1. A company has announced that it wishes to build a large factory near
your community.
2. Discuss the advantages and disadvantages of this new influence on
your community.
3. Do you support or oppose the factory? Explain your position.
On weekends, the Leydons escape inland. They drive three hours to Orlando so their son
can play outside without getting sick. They go to a Walt Disney World resort with water
slides, machine-generated currents and an imported white sand beach.
“It’s a shame to leave this beautiful place and go to a water park,” Richard Leydon said.
“But we don’t have much choice. We have to get away from it.”
Harmful algae blooms have occurred for ages. Some scientists theorize that a toxic
bloom inspired the biblical passage in Exodus: “ … all the water in the Nile turned into
blood. And the fish in the Nile died, and the Nile stank, so that the Egyptians could not drink
water from the Nile. There was blood throughout all the land of Egypt.”
What was once a freak of nature has become commonplace. These outbreaks, often called red tides, are
occurring more often worldwide, showing up in new places, lasting longer and intensifying.
They are distress signals from an unhealthy ocean. Overfishing, destruction of wetlands, industrial pollution and
climate change have made the seas inhospitable for fish and more advanced forms of life and freed the lowliest —
algae and bacteria — to flourish.
A scientific consensus is emerging that commercial agriculture and coastal development, in particular, promote
the spread of harmful algae. They generate runoff rich in nitrogen, phosphorous and other nutrients that sustain
these microscopic aquatic plants. In essence, researchers say, modern society is force-feeding the oceans with
the basic ingredients of Miracle-Gro. Yet there is debate among Florida scientists over the precise causes of local
outbreaks. Red tides date back at least 150 years, before the state became one of the nation’s
most populous. Some scientists say their increased intensity is part of a natural cycle.
People who have spent many years on Little Gasparilla Island and in other Florida Gulf
Coast communities say red tides used to show up once in a decade. Now, they occur
almost every year and persist for months.
From http://www.latimes.com/news/la-me-ocean1aug01,0,1194537,full.story
On weekends, the Leydons escape inland. They drive three hours to Orlando so their son
can play outside without getting sick. They go to a Walt Disney World resort with water
blood. And the fish in the Nile died, and the Nile stank, so that the Egyptians could not drink
outbreaks. Red tides date back at least 150 years, before the state became one of the nation’s
most populous. Some scientists say their increased intensity is part of a natural cycle.
People who have spent many years on Little Gasparilla Island and in other Florida Gulf
Coast communities say red tides used to show up once in a decade. Now, they occur
almost every year and persist for months.
HEY!

36
Listening
A Listen and match the pictures to the conversations. Track 13
B Listen again and complete the statements. Track 14
1. Tere probably just has a .
2. Tere needs to go home and .
3. Tere should go back to the doctor if she .
4. Oscar hurt himself when he .
5. The nurse bandaged his .
6. Oscar needs to go to the for an .
C Listen and repeat. Track 15
should shouldn’t
You should come back in a few days.
You shouldn’t go to school like that.
D Listen and circle the form of should that you hear in each sentence. Track 16
1. The doctor said you should / shouldn’t stay in bed.
2. Should / shouldn’t you go to see a dentist?
3. You should / shouldn’t really study for your exams.
4. Sam should / shouldn’t move in with you.
5. Children should / shouldn’t watch TV all day.

37

38
Speaking
A Look at the pictures and name each bird with the words from the box below.Work with a classmate.
B Answer the questions.
1. Are there any birds in your neighborhood?
2. What kind of birds have you seen in the city?
3. Do you know what kind of birds live by the ocean?
4. Do you know what kind of birds live in a forest?
Lesson 3
A Bird’s World
1. Robin 2. Cardinal 3. Hummingbird 4. Pheasant 5. Crow 6. Seagull 7. Sparrow 8.Woodpecker 9. Pigeon 10. Owl
11. Hawk 12. Eagle 13. Canary 14. Cockatoo 15. Parrot 16. Duck 17. Goose 18. Swan 19. Pelican 20. Peacock
HEY!

39
Vocabulary
A Correct the spelling for each bird kind.
1. Robbin
2. Kardinal
3. Phisant
4. Humingbird
5. Pigeion
6. Canari
7. Parroth
8. Guuse
9. Swam
10. Pinguen
B Complete the sentences using the vocabulary given in the pictures. Use a dictionary.
1. Look at the tree. There is a with many bird eggs.
2. I would like to have in order to be able to fly.
3. The peacock has the most beautiful .
4. The woodpecker pecks with his and the duck eats
with his .
5. The eagle has very sharp .
You can play games;
write sentences, play
spelling bee contests with
your friends, ﬁnd their
meanings, etc.
beak nest wings
peak claws feathers
HEY!

40
Reading
A These are three extracts from the reading on page 41. Skim them and say what they are about.
B Scan the text on the following page and answer these questions, work with a classmate.
1. How long does it take an albatross to be completely feathered?
2. What does an albatross do when he sees a visitor?
3. How does pollution kill albatross?
4. Who discovered that albatross eat all the junk that floats in the sea?
5. Which state is used to compare the dimension of water pollution?
6. What is the reaction of an albatross chick at the moment of being born?
7. How big is an albatross chick after six months of having been born?
8. Why does an atoll get polluted?
9. What do you think are the causes of albatross choking?
10. Is the choking and tangling problem exclusive of albatross? Yes/no, why?
Midway, an atoll halfway between
North America and Japan, has no
industrial centers, no fast-food
joints with overﬂowing trash cans,
and only a few dozen people.
Albatross are by no means the only victims.An
estimated 1 million seabirds choke or get tangled in
plastic nets or other debris every year.About 100,000
seals, sea lions, whales, dolphins, other marine
mammals and sea turtles suffer the same fate.
The albatross chick jumped to its
feet, eyes alert and focused.At
5 months, it stood 18 inches tall
and was fully feathered except
for the fuzz that fringed its head.
Remember!
the information.
HEY!

41
Plague of Plastic Chokes the Seas
1 On Midway Atoll, 40% of albatross chicks die, their bellies full of trash. Swirling masses of drifting debris pollute
remote beaches and snare wildlife.
The albatross chick jumped to its feet, eyes alert and focused. At 5 months, it stood 18 inches
tall and was fully feathered except for the fuzz that fringed its head.
5 All attitude, the chick straightened up and clacked its beak at a visitor, then rocked
back and dangled webbed feet in the air to cool them in the afternoon breeze.
The next afternoon, the chick ignored passers by. The bird was flopped on its belly, its
legs splayed awkwardly. Its wings drooped in the hot sun. A few hours later, the chick
was dead.
John Klavitter, a wildlife biologist, turned the bird over and cut it open with a knife.
Probing its innards with a gloved hand, he pulled out a yellowish sac — its stomach.
Out tumbled a collection of red, blue and orange bottle caps, a black spray nozzle, part of a
green comb, a white golf tee and a clump of tiny dark squid beaks ensnared in a tangle of
fishing line.
“This is pretty typical,” said Klavitter, who is stationed at the atoll for the U.S. Fish
and Wildlife Service. “We often find cigarette lighters, bucket handles, toothbrushes,
syringes, toy soldiers — anything made out of plastic.”
It’s all part of a tide of plastic debris that has spread throughout the world’s oceans,
posing a lethal hazard to wildlife, even here, more than 1,000 miles from the nearest
city.
Midway, an atoll halfway between North America and Japan, has no industrial centers, no fast-
food joints with overflowing trash cans, and only a few dozen people.
Its isolation would seem to make it an ideal rookery for seabirds, especially Laysan
albatross, which lay their eggs and hatch their young here each winter. For their first
six months of life, the chicks depend entirely on their parents for nourishment. The
adults forage at sea and bring back high-calorie takeout: a slurry of partly digested
squid and flying-fish eggs.
As they scour the ocean surface for this sustenance, albatross encounter vast expanses
of floating junk. They pick up all manner of plastic debris, mistaking it for food.
As a result, the regurgitated payload flowing down their chicks’ gullets now includes Lego
blocks, clothespins, fishing lures and other pieces of plastic that can perforate the stomach or block the
gizzard or esophagus. The sheer volume of plastic inside a chick can leave little room for food and liquid.
Of the 500,000 albatross chicks born here each year, about 200,000 die, mostly from dehydration or
starvation. A two-year study funded by the U.S. Environmental Protection Agency showed that chicks that
died from those causes had twice as much plastic in their stomachs as those that died for other reasons.
The atoll is littered with decomposing remains, grisly wreaths of feathers and bone surrounding colorful
piles of bottle caps, plastic dinosaurs, checkers, highlighter pens, perfume bottles, fishing line and small
Styrofoam balls. Klavitter has calculated that albatross feed their chicks about 5 tons of plastic a year at
Midway.
Albatross fly hundreds of miles in their search for food for their young. Their flight paths from Midway
often take them over what is perhaps the world’s largest dump: a slowly rotating mass of trash-laden water
about twice the size of Texas.
The albatross chick jumped to its feet, eyes alert and focused. At 5 months, it stood 18 inches
Out tumbled a collection of red, blue and orange bottle caps, a black spray nozzle, part of aOut tumbled a collection of red, blue and orange bottle caps, a black spray nozzle, part of a
green comb, a white golf tee and a clump of tiny dark squid beaks ensnared in a tangle of
Out tumbled a collection of red, blue and orange bottle caps, a black spray nozzle, part of a
As a result, the regurgitated payload flowing down their chicks’ gullets now includes Lego
blocks, clothespins, fishing lures and other pieces of plastic that can perforate the stomach or block the
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C Practising strategies. Scan the text again and identify in which line(s) you can find the following information.
1. The description of the albatross dying process caused by pollution.
2. A description of how junk and animals get trapped in a web.
3. A testimony that plastic junk is found in an atoll.
4. The season when the birds hatch with their babies.
5. Percentage of plastic junk that floats on the sea.
6. The plastic as the cause of death of baby albatross.
7. The brand of tennis shoes that were disgorged by a ship.
Writing
A Write a five-page essay about how pollution is damaging the environment or how it is affecting life on Earth.You should
define a specific topic to work on.
This is known as the Eastern Garbage Patch, part of a system of currents called the North Pacific subtropical
gyre. Located halfway between San Francisco and Hawaii, the garbage patch is an area of slack winds and sluggish
currents where flotsam collects from around the Pacific, much like foam piling up in the calm center of a hot tub.
Curtis Ebbesmeyer has been studying the clockwise swirl of plastic debris so long, he talks about it as if he were
tracking a beast.
“It moves around like a big animal without a leash,” said Ebbesmeyer, an oceanographer in Seattle and leading
expert on currents and marine debris. “When it gets close to an island, the garbage patch barfs, and you get a beach
covered with this confetti of plastic.”
Some oceanic trash washes ashore at Midway — laundry baskets, television tubes, beach sandals, soccer balls and
other discards.
Nearly 90% of floating marine litter is plastic — supple, durable materials such as polyethylene and polypropylene,
Styrofoam, nylon and saran.
About four-fifths of marine trash comes from land, swept by wind or washed by rain off highways and city streets,
down streams and rivers, and out to sea.
The rest comes from ships. Much of it consists of synthetic floats and other gear that is jettisoned illegally to avoid
the cost of proper disposal in port.
In addition, thousands of cargo containers fall overboard in stormy seas each year, spilling their contents. One ship
heading from Los Angeles to Tacoma, Wash., disgorged 33,000 blue-and-white Nike basketball shoes in 2002.
Other loads lost at sea include 34,000 hockey gloves and 29,000 yellow rubber ducks and other bathtub toys.
The debris can spin for decades in one of a dozen or more gigantic gyres around the globe, only to be spat out and
carried by currents to distant lands. The U.N. Environment Program estimates that 46,000 pieces of plastic litter
are floating on every square mile of the oceans. About 70% will eventually sink.
Albatross are by no means the only victims. An estimated 1 million seabirds choke or get tangled in plastic nets
or other debris every year. About 100,000 seals, sea lions, whales, dolphins, other marine mammals and sea turtles
suffer the same fate.
FROM http://www.latimes.com/news/la-me-ocean2aug02,0,2177579,full.story
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