SPORTS AND FITNESS 1
Answer Key
Possible answer():
1. Student' s own answers. 2. I think the fittest
athletes are the ones who work out all of their
musce groups and train for endurance, such as
runners and swimmers.
1A THE WORLD' s GAME
Answer Key
Before You Read
A 1. T;2. F (Britain];3.T;4.T
B. Possible answer(s): camaraderie, international
appeal, promise of wealth, simplicity, keeping
children out of trouble
Reading Comprehension
A1.b;2.c3. b;4.a (line 10);5. d
B.1.e;2 b;3.a4.c
Reading Skill
Aa,b
B.1.d2e;3.bx:4.c5.a
C.1.F (Brazl has;2. T; 3. T:4. F (two players)
Critical Thinking
Possible answer(s): Soccer dlubs now have fans
all over the world. Many soccer players come
from poor families. I' s a simple game. Anyone
can play it It unifies people.
Vocabulary Practice
A 1. established; 2. victory; 3. defeated;
4. competitors; 5. passion; 6. responsible
B.1. a2. b;3. b;4. a
C.1. uniform; 2. unite; 3. unique; 4. universal
1B WHAT MAKES AN OLYMPIC CHAMPION?
Answer Key
Before You Read
A 1. athletes; 2. competition; Olympics;
3. medals
B. Possible answer(s: strength, determination,
endurance, money, talent
Reading Comprehension
A 1. b;2. a (Para C);3. c (Para C;:4. d;
5. b (Para G)
B. Marathon runners. b, f Gymnasts. C, d;
Both:a, e .
Reading Skill
A 1. number (180 cm or tllel; 2. place (Kenya,
Ethiopia, Morocco); 3. name (oxygen);
4. person (Greg Louganis); 5. place (the
Olympic Training Center in the United States)
B.1. T:2T:3.F (She" s won several marathons;:
4. F (They take less than three seconds.)
Critical Thinking
Possible answer(s: diet athletes that eat a lot
of protein might build more muscles; education:
athletes who train and study might have more
balanced lives. Perhaps this may help them to
improve their performance; family: athletes
with a close family might get more support
and help; gender roles: male athletes might
have more opportunities than female athletes
in some sports; religion: some religions might
focus more on a healthy lifestyle by not drinking
alcohol or participating in certain activities.
Vocabulary Practice
A 1. elite:; 2. required; 3. enhanced;
4. differentiated; 5. adjustments;
6. psychological
B.1. champion; 2. generate; 3. genetic;
4. adjust; 5. automatic
C. 1. anthropology: 2. biology: 3. geology
VIDEO SPORT CUMBING
Answer Key
Before You Watch
A1.d;2.a3. b;4.c
While You Watch
A b,c
B.1.a2.c3.b
Critical Thinking
Possible answer(s): I think people enjoy
extreme sports because it' s challenging and
they like taking risks. The main challenge
is the cost of expensive equipment such as
parachutes and harnesses. The reward is the
feeling of exhilaration, as though you' re on
top of the world!
Possible answer(s: 1 think a rock dimber needs
to be brave, strong-willed, determined, and
very energetic because some rocks are very
steep and high. A rock climber can' t give up in
the middle of a climb.
SKIN DEEP 2
Answer Key
Possible answer(s):
1. I think long, thick hair and gold jewely are
beautiful.
2. I think the expression means that a person
can look beautiful on the outside but their
personality might not be very nice.
2A What ls Beauty?
Answer Key
Before You Read
A. Possible answer(s): I think good-looking
people have easier lives than other people
because they are more confident, which
leads to them getting better jobs and making
more money.
B. Possible answer(s): 1. I don't think people
around the world have similar ideas about
beauty because different cultural groups have
their own individual and unique features.
2. I think society influences how we perceive
beauty because fashion magazines and
popular culture set the standard for what is
considered beautiful.
Reading Comprehension
A.1.a;2.c(Para A);3.d;4. b;5. b (Para F)
B.1.E;2.D;3.C;4.B;5.F;6.A
Reading Skill
A.1. nails; 2. wigs; 3. three; 4. Bllions; 5. Six
B. Possible answer(s): The writer supports the
claims by giving expert opinions (Mictor
Johnston at New Mexico State University ...
and examples (the women in Western
magazines are thin, but native people in
southeast Peru prefer a larger shape).
Critical Thinking
Possible answer(s): Ithink the expression
means option "a," because every person sees
things differently. The "eye of the beholder"
means the eye of the person who is looking,
and everybody sees things in a different way.
D Possible answer(s): One example is that I really
like short hair, and so when Alison cut her
long hair short, I thought it looked great. But
Maria thought it looked awful. We all have
our own opinions about what is beautiful.
Vocabulary Practice
A.1. conform; 2. notion; 3. devoted;
4. consumers; 5. associated with
B.1. uniform; 2. genders; 3. features;
4. subjective; 5. desire
C.1. uniform; 2. conform; 3. transformed;
4. formatted
2B SKIN: THE BODY' 5 CANVAS
Answer Key
Before You Read
A Possible answer(s: ttooing painting,
piercing, scarring
B. Possible answer(s): People think ttoos make
them look more beautiful; In some cultures,
tattoos are part of a ritual.
Reading Comprehension
A1. b;2. b (ParaC);3.a (Para D);4.a;
5. C(Para F）
B.1.1.9 square meters (Para A); 2. any one of
the fllowing: extremes of temperature 1
damaging sunlight / harmful chemicals 1
dangerous infections; 3. Chris Rainier (Para G)
Reading Skill
A1.a2.a3. b
B. Possible answer(s): Paragraph D: negative
connotations of ttooing; Paragraph E:
reasons for scarring; Paragraph F:
nonpermanent markings
Crtical Thinking
Possible answer(s): wear particular styles of
clothes; wear heary makeup; wear jewelry,
grow their fingernails; change their hairstyle;
get piercings; shave their eyebrows
r ve expressed my identity by dyeing my
hair dfferent colors- sometimes red, green,
or blue.
Vocabulary Practice
A 1. crucial; 2. protective; 3. permanent; 5. fade;
6. sector
B.1.b:2.b:3.b;4.b;5. a
C.1. damage; 2. addres; 3. resident 4. basis
VIDEO THE BEAUTY OF UGLY FOOD
Answer Key
Before You Watch
A 1. appearance; 2. fruit and vegetables;
3. customers; 4. refuse; 5. mark on it
B. Possible answer(s): I like to buy round oranges
and long thin carrots. I don' t think I would
be happy to buy fruit or vegetables that
look wrong! .
While You Watch
Aa
B.1.bx2.a3.b;4. b
Critical Thinking
Applying:
Possible answer(s: I think I would shop at
a store that only sells imperlect produce
because the cost is probably cheaper and the
fruit won' t go to waste.
Maybe "ugly food”could be donated to
people who can' t aford to buy fresh fruit
and vegetables.
ANIMALS IN DANGER 3
Answer Key
Possible answer(s);
1. some big cats, pandas, wolves, some whales,
and elephants
2. Habitats become changed by human activity
or by environmental factors.
3A RACING TO RESCUE KOALAS
Answer Key
Before You Read
A 1. tree leaves; 2. in their mother' s pouch;
3.80,000
B. Possible answer(s): they might be losing their
natural habitats to development; humans
might be polluting their environment.
Reading Comprehension
A 1.d; 2. b (ParaO);3. b (Para E); 4. c (Para G);
5. C (Para K
B.1.b:2.e;3.d:4.a5.c
Reading Skill
A1.a2.c3.a4.c5.c .
B. Possible answer(s): The word discover has the
prefix dis-, which means "not." Discover must
mean *not cover," or to find something out.
Citica Thinking
loss of eucalyptus trees and disease
Possible answer(s: I think it might be easier
to solve the problem of disease by giving
more koalas treatment. Also, there might be a
vaccination that female koalas could be given
before they show signs of the ilness. /
I think it would be easier to improve the
koalas' environment by reducing speed limits
on streets and creating more green areas
for koalas to live in. Perhaps then they will
become healthier and less prone to disease.
Vocabulary Practice
A 1. extinction; 2. tend to; 3. suburbs;
4. capture; 5. threatens; 6. primary
B.1.b;2.b;3.b;4.a .
C.1. appearance; 2. exercise; 3. condition;
4. contact
3B TRACKING THE SNOW LEOPARD
Answer Key
Before You Read
A 1. Possible answers: It might be dificult to
find food, and the weather gets very cold high
up in the mountains. 2. Possible answer(s): I
think the snow leopard has adapted to the
cold by growing a thick coat, and it can see
well at night to hunt nocturnal animals.
B. the number of snow leopards left in the wild
(Para D): methods of protecting snow leopards
(Para G); disagreements between snow
leopards and herders (Para E)
Reading Comprehension
A1.d2.a3.d(Para D);4.d (Para G):5.c
B.1. a2b;3.b;4.a5. b
Reading skill
A/B. Possible answer(s):
The Value of Preservation
money
Financial incentives are also helping to slow
snow leopard kllings. The organization
Snow Leopard Conservangy India Trust has
estabished Himalayan Homestays, a
program that sends visitors to herders' houses.
Fora clean room and bed, meals with
the family, and an introduction to their culture,
visitors payabout ten U.S. dollarsi
night. If guests come once every two weeks
through the tourist season, the Therders
will earm enough income to replace the animals
lost to snow leopards. In addition,
the organization helps herders build protective
fences that keep out snow leopards. It
also conducts environmental classes at village
schoos, and trains the organization's
members as nature guides, available for hireIn
exchangethe herders agree not to kill snow
leopards.
Critial Thinking
Possible answer(s):
The main purpose is to encourage people not
to kill snow leopards by providing financial
incentives.
Himalayan Homestays gives herders the tools
to educate others about their culture and
learn more about their environment They also
build fences around their property to keep the
snow leopards out SLE buys products that the
herders make.
I think Himalayan Homestays might be more
effective because the herders learn whyit' s .
important to protect the snow leopards, and
they have the opportunity to meet foreigners
who might have different opinions than
they do.
Vocabulary Practice
A 1. fiallyl 2. drag: 3. reverse; 4. enforce;
5. landscape; 6. status
B.1. financially, 2. disagreement, 3. extra
money; 4. diferent from
C.1. conflict 2. signal; 3. contact 4. capture
VIDEO PROTECTING PANDAS
Answer Key
Before You Watch
A 1. to process food in the stomach; 2. a
substance found in some food (such as meat
or fish); 3. food that one regularly eats;4. to
trust in or depend on
B.1. T;2. T; 3. F (they are no longer
endangered); 4. F (an increase of 17 percent
over the past decade)
While You Watch
A See Before You Watch B.
B.1. a2c3. b
Crtical Thinking
Possible answer($): A giant panda and a koala are
similar because they both eat plants. Koalas are
losing their eucalyptus trees and pandas are losing
their bamboo due to habitat loss caused by
human activity. Their habitats are very different
though: Pandas travel on land and koualas mostly
live in trees. Also the intervention is different for
each animal The koalas are being monitored
in the wild and looked after if they are found
to be injured. Giant pandas are being breed in
captivity to try to boost the numbers of pandas
in the wild.
VIOLENT EARTH 4
Answer Key
Possible answer(s):
1. Natural disasters include extreme weather
such as tomadoes, foods, hurricanes/
typhoons, as well as seismic events such as
earthquakes, volcanic eruptions, and tsunamis.
2. Yes, in Mexico, there are volcanoes and
earthquakes.
4A SACRED SUMMITS
Answer Key
Before You Read
A 1. erupted; 2. active; 3. sacred; 4. ash
B. religious beliefs, why scientists are concerned,
threats to locals
Reading Comprehension
A1.c2c(Para D):3. b;4. a (Para F);
5.c(ParaEandD
B.1.F;2.H;3.F;4.G;5.l6.G .
Reading Skill
A Possible answer(s: More people today are
living near active volcanoes than ever before.
The Decade Volcano Project helps set up
"defenses”against a volcanic eruption.
In 1992, they diverted a flow of lava from
Mount Etna, Sicily which was threatening a
nearby town.
B. Possible answer(s): Although volcanoes Can
cause great destruction, many people live
near them, Scientists are continuing to look
for ways they can predict these devastating
eruptions before they happen.
Critical Thinking
Possible answer(s: People risk their lives to
live near active volcanoes because the soil is
very ferile and they can grow healthy fruits
and vegetables. Also, I think it would be very
dificult to move away from your home when
a volcano hasn' t been active in centuries.
Possible answer(s: I think local authorities should
work with scientists and innovative organizations
to build volcano defenses and find ways to
predict eruptions so people can evacuate.
Vocabulary Practice
A 1. ancestors; 2. disastrous; 3. summit 4. dawn
B. 1. winess, 2. displaced, 3. expands;
4. destructive; 5. monitored
C.1. expanded; 2. exports; 3. exceeds;
4. explosion
4B I5 PREDICTION POSSIBLE?
Answer Key
Before You Read
A1. T:2. F (west coasts); 3. T
B. The author is generally optimistic that
scientists may be able to predict earthquakes
in the future.
Reading Comprehension
A1.c2d3. b:4.d (Para F:5. a
B.ac,e
Reading kill
A1,3
B.1.d:2.f;3.c4.a;5.e;6.b
C. P-wave = yellow vertical arrow, S-wave = red
wavy arrow, surface wave = red horizontal
arrows
Critical Thinking
Possible answer(s;: I think the safest place to be
in an earthquake is under a very heavy structure
that cannot move, or inside a very strong
building frame, such as underneath a doorway
on a lower level away from any glass.
Vocabulary Practice
A 1. schedule, random; 2. track massive;
3. zone
B.1. laboratory; 2. detect; 3. data; 4. precise
C.1. on; 2. busy, 3. behind
VIDEO EARTHQUAKES 101
Answer Key
Before You Watch
A 1. sallw, 2. magnitude; 3. devatating;
4. rattled
B. Possible answers: The Earth' s crust sits on
top of tectonic plates, which move. As the
plates push together, they can slip or fall
beneath one another. This is what causes
an earthquake- and the movement of the
Earth sends shockwaves through the rock.
While You Watch
A how earthquakes happen; how earthquakes
are measured; examples of strong earthquakes
B.1. b;2.bx3. a
Critical Thinking
Possible answer(s): I would prioritize ensuring
that new buildings are earthquake-proof because
that seems like a realistic way to help save lives
now. Engineers have already designed proven
methods, so I would want to use that technology
in my city.
ISLANDS AND BEACHES 5
Answer Key
Possible answer(s):
1. The natural landscape of beaches has a
positive effect on our health and wellbeing.
2. The Canary Islands are off the west coast
of Africa and are volcanic; Jamaica is in the
Caribbean and is the birthplace of reggae;
the Seychelles are in the Indian Ocean, and
snorkeling is very popular there.
5A LAND OF FIRE AND ICE
Answer Key
Before You Read
A 1. attraction; 2. lively; 3. impressive
B.1.340.000; 2.00.000; 3.22;
4. more than 1.3 million
Reading Comprehension
A 1.d:2.c(Para D):3. a4.c (Para I):5. b (Para I)
B.1. NG; 2. F (a huge lake of bright blue sea
water); 3. T:4. NG; 5. T; 6. F (usualy above
freezing); 7. F (Most of the inner part is
uninhabited and relatively inaccessible.); 8. NG
Reading Skill
A 1. Greenland; 2. Reykjavik 3. Atlantic
B. Starting with the label pointing to Reykjavik in
a clockwise circle:d,b.c,a e,f
Crtical Thinking
Possible answer(S): I think the most interesting
activity would be caving.I d love to go to a
glacier, especially one just above an active
volcano! I am not scared of small spaces and
like to hike and do adventurous activities, so
caving would be my first choice.I' m not very
interested in art and like to have an active
vacation, sor d choose caving. viewing the
mid-Atlantic fault, seeing a large watrall
and visiting a black-sand beach.
Possible answer(S): Iwould spend Day 1in
Reykjavik and visit museums and look at art.
On Day 2, I would see the mid-Atlantic fault
and waterfalls, then continue on to Vik.
On Day 3, I would go caving.
Vocabulary Practice
A 1. spectacular; 2. architectural; 3. tension;
4. awarded; 5. converted; 6. lterally
B. a. cures; b. monster, c. naturally; d. migrate
C. breathtaking, impressive, stunning
5B THE PERFECT BEACH
Answer Key
Before You Read
A1.c2t3. b;4.d;5.a6e
B. Possible answers;: 1. a travel writer looking
for "the perfect beach" ; 2. My perfect beach
would be isolated. There would be lush, green
liffs leading down to the blue green water.
There would be a lot of marine life and the
sun would be shining.
Reading Comprehension
A1. c2. d;3. d (Para G and H):4. b (Para G);
5. b
B.1. Maceio; 2. Prainha; 3. Praia do Leao;
4. Copacabana; 5. Jericoacoara
Reading Skill
A1.c2b;3.a4.f5. e
B.2. The beachI' m searching for needs to be
a lttle wilder. 3. It hasn' t been spoiled by
tourists. 4. a fisherman' s beach; 5. more than
a dozen beautiful beaches
Critical Thinking
Possible answer(s):
It was beautiful and looked perfect.
The phrase too perfect is used to describe a
negative point of view, The word too means
excessive, or more than necssary. Stewart is
looking for something more unusual that is
wild in the sense of being more remote and
distinctive.
There is a park near my house that I think is
too perfect It has manicured trees and bushes
and the paths are paved in straight lines. I
would prefer wildflowers and a more natur alooking
rocky path.
Vocabulary Practice
A 1. isolated; 2. utimate; 3. eager, 4. destination
B.1. prohibited; 2. state; 3. balance; 4. spoiled;
5. ranked; 6. magnificent
C.1. of shock; 2. of mind; 3. of emergency,
4. of repair
VIDEO HA LONG BAY
Answer Key
Before You Watch
A 1. a rich green color like the jewel: 2. a narrow
section of sea between two pieces of land;
3. without any people living there
While You Watch
Aab,d
B.1. T; 2. F (Most remain uninhabited);
3. F (A dragon flew down from heaven to
protect them.);4. T;5. NG
Critical Thinking
Students’own answers
Possible answer(s): There is a beautiful
national park in my country with some
important wildlife habitats. There are a
variety of birds, insects, and mammals that
are native to the area, and many of them are
endangered. I think this national park should
be included on UNESCO' s Natural Heritage list
because the wildlife needs protection.
GLOBAL ADDICTIONS 6
Answer Key
Possible answer(s:
1. People can become addicted to drugs, foods,
and computers.
2. I think it' s okay to be addicted to things that
are healthy for you, such as exercise. Some
people I know spend hours at the gym each
day and they are in great shape.
6A THE WORLD' s FAVORITE DRUG
Answer Key
Before You Read
A1.b;2.a3.c4.e5.g6.d;7.h;8. f
B. Possible answeris): I don' t think caffeine in
moderation is bad for you, but too much of
it might make you jttery and nervous.
Reading Comprehension
A1.c2d:3. b (Para Q;4. a;5. a
B.1.b.c2d,e3.a, f
Reading Skill
A 1. ease: 2. ilnesses; 3. reaction; 4. sleep:
5. drug; 6. sad; 7. pressure
B. Possible answeris): 1. Ithink it s a good idea
if you consume caffeine in moderation./I
don' t think it is a good idea because although
caffeine' s behavioral effects might be mild they
are still there, and I would rather eat healthily and
exercise regularly rather than rely on a stimulant
2. I agree with the writer, I think it' s good to
drink coffee or tea- -the benefits outweigh the
negatives. / I disagree with the writer. I think the
negatives outweigh the positives as regular loss
of sleep can affect your health.
Crtical Thinking
a.C;b.C:cCd.P;e.P;fP/C
Possible answer(s): I think chocolate is
generally negative, but I would like to find out
more about its health benefits. I would also
like to know how much sugar it has.
Vocabulary Practice
A 1. abusing; 2. reaction; 3. Furthermore;
4. exhibit
B.1. a2. b;3.c;4.a5. b;6. a
C. Possible answeris: moreover, also,
additinally, what' s more
6B ADDICTED TO DISTRACTION
Answer Key
Before You Read
A Possible answer(s): I spend about 30 minutes
reading articles; two hours chating with
friends; one hour posting on social media; two
hours watching videos; three hours playing
video games.
B. Possible answers: Some positive effects of
using digital technology are that you don' t
need to be stuck in an office all day because
you can work from home or whenyou' re out
and about; you can always get in touch with
people; Some negative effects are that you' re
always "connected" and so it s more dfficult
to take a break from work; you can easily
become addicted to your device.
Reading Comprehension
A1.ax2.d3.C4.c(Para F):5.a
B.1. Chiba University; 2. 15; 3. city centers;
4. blood; 5. forests; 6. 16; 7. (stress) homone;
8. blood pressure; 9. relaxes; 10. evolved
Reading Skill
A To add information: moreover; To contrast
ideas: yet To show another similar idea:
likewise; To emphasize a point: above alt;
To show a consequence: therefore;
To make a conclusion: in short
B. Possible answer(s) (from passage): 1 In fact,
Indeed; Consequently, As a result, Therefore;
2. In addition, Furthermore, Moreover
Critical Thinking
Possible answer(s): Someone who lives in the
city could go to a quiet building, such as a
library, and read a book to relax, or they could
go to a coffee shop with friends.
Possible answer(s: A fitness app could be
used to help reduce stress by helping motivate
people to exercise.
Vocabulary Practice
A 1. concentration; 2. Consequently;
3. surroundings; 4. therapies
B.1. in turn; 2 visual; 3. focus; 4. excessive;
5. switch; 6. constantly
C.1. vision; 2. revise; 3. invisble; 4. visualize
VIDEO WORLD OF CAFFEINE
Answer Key
Before You Watch
A1.d;2.a3. c;4. b
B. Possible answer(s): I usually drink two cups
of coffee a day and eat chocolate once every
three days. I sometimes have a cup of tea or
cola, but I never have energy drinks.
While You Watch
A1.b,c2a b
B.c,b.a,d
Crtical Thinking
Possible answer(s): Some pros of gathering in
coffle and tea establishments are that people
can socialize and communicate about current
events. They also contribute to the local economy
by keeping the shop owners in business Some
cons might be that people may drink too much
caffeine and may spend too much time away
from their families. Students may not devote
enough time to studying.
ENERGY SOLUTIONS 7
Answer Key
Possible answer(s):
1. Using fossil fuels, getting energy from solar
power, water power, wind power, 2. I think solar
and wind power are becoming more common,
but people also use fossil fuels.
7A POWERING THE PLANET
Answer Key
Before You Read
A Possible answer(s): 1 Advantages: it' s clean,
renewable energy; Disadvantages: you need
to receive a lot of sunlight, solar panels don' t
always look nice; 2. Possible answer(s): wind
power, wave power
B. Solar India; Wind: England; Nuclear. France,
China. India. Japan
Reading Comprehension
A 1.a2.c (Para DI; 3. b (Para G and HI;
4.a (Para 0:5. a
B.1.cd;2f3.ae
Reading Skill
A 1. nuclear energy; 2. solar energy, wind
energy, nuclear energy; 3. solar energy,
wind energy
B.1. solar energy, wind energy; 2. nuclear
energy; 3. solar energy, nuclear energy
Crtical Thinking
Possible answer(s): I think solar energy has
the most significant advantages because
people can have their own solar panels and
the energy is clean and readily avilable,
especially if you live in a sunny climate; 1 think
nuclear has the most significant disadvantages
because of its safety record.
Possible answer(s): I think the disadvantages of
wind energy are the easiest to solve because
people need to understand that we have to
find an alternative to fossil fuels so they will
have to accept wind farms on the landscape.
Maybe the design of the wind turbines can be
changed to better fit into the landscape.
Possible answer(s: I think solar power is the
best option to replace fossil fuels because if
every home has solar panels, the energy from
the sun can be collected in great quantities
and shared throughout communities.
Vocabulary Practice
A 1. eliminate; 2. substitute; 3. equivalent;
4. utilize
B.1.b:2. b:3.a4.ax.5.a.6.a .
C. cdimb↑; decline↓; dive↓; drop 4; increase↑;
reduction↓
7B CITY OF THE FUTURE?
Answer Key
Before You Read
A 1. ecological footprint 2. take action;
3. metropolis
B. Possible answers: A modern city like Dubai
could find alternative ways to produce energy,
such as solar power. There is a lot of sunlight in
the Middle East so that might be a good choice.
Reading Comprehension
A1.d;2.c3.a4. b;5.a
B.1.c2t3.g:4.b;5. d;6. a
Reading Skill
A Positive words carbon-rich, vital, abundant,
inexpensive: Negative words dity. dangerous,
grave risks, deadly diseases, recklessly, toxic,
polluting, fohardy, iresponsible; Possible
answer(s) I think the author s tone is negative
because there are many more negative words.
The author thinks coal is dangerous to human
health and that it should be replaced now.
B. Possible answer(s): I think the author' s tone is
positive because he or she has given examples
of good things Dubai is doing to reduce its
emissions.
Critical Thinking
Possible answer(s): Dubai has invested in
solar energy, green buildings, and public
transportation. AIl new buildings must meet
strict energy regulations and use solar panels.
Possible answer(S): My country gives a
discount to people who have solar panels
on their roofs, and provides tax incentives to
people who buy energyeficient appliances
and cars that use less gasoline.
Vocabulary Practice
A 1. sustainable; 2 residents; 3. emissions;
4. efciency; 5. wealthy; 6. unrealistic
B.1. cooling: 2. comprehensive; 3. distributed;
4. unrealistic; 5. regulation; 6. eficiency.
7. emissions; 8. sustainable
C. ecology: emit; distribution; eficient; sustain;
Residential
VIDEO WAVE POWER
Answer Key
Before You Watch
A Upper left 1; Middle: 2; Right: 4; Bottom left: 3
B.1. pipes; 2. pumps; 3. turbines; 4. tides
While You Watch
A1
B.1. sea snake; 2. high pressure; 3. weather
conditions; 4. Scotland; 5. Portugal
Critial Thinking
Possible answer(s):
Although tides are predictable in any
one location, the weather is not, so the
equipment needs to be very sturdy to
withstand ocean storms. In some places,
it could interfere with navigation or fishing.
I think it depends on the location of the place,
its weather, and the atitudes of local people
toward new sources of energy.
EPIC ENGINEERING 8
Answer Key
Possible answer(s):
1. The Three Gorges Dam, the International
Space Station, the Large Hadron Collider, Dubar s
Palm Islands; 2. Students’answers will vary.
8A CHINA' s GRAND CANAL
Answer Key
Before You Read
A 1.1368 -1855; 2. it was used to transport
everything from food to wood to textiles;
3. Beijing in the north and Hangzhou in the
south; 4.1,770 kilometers
B. Possible answer(s: I think the canal has been
important because it helped move people,
goods, and ideas from one part of China
to another.
Reading Comprehension
A 1.b(Para B);2. d (Para D);3. b;4. d;5.c
B.c.t,b,e,a, d
Reading Skill
A 1. best-known; 2. waterway,; 3. trademarks;
4. lfeline
B.1. well-known; 2. man-made; 3. Without;
4. lifetime; 5. day trip; 6. highlight
Crtical Thinking
Possible answer(s): Each city was special
because the traditional cultures were different,
which made the buildings unique.
Possible answer(s: Today. the cities all look
exactly the same.
Vocabulary Practice
A 1. proposals; 2 acquired; 3. monument;
4. renovation; 5. transported
B.1.b:2.a3.a4.b;5. a
C.1. innovate; 2. renovated; 3. novelty
8B HIGHWAY OF DREAMS
Answer Key
Before You Read
A 1. Possible answer(s$: The highway would
provide easier and more affordable
transportation for people and goods.
2. Possible answeris: The pristine environment
in the Amazon will be threatened.
B. Paragraphs E and F address the advantages for
the Peruvians. Paragraphs G and H address the
disadvantages for the environmentalists.
Reading Comprehension
A1.a2. b(ParaC; 3. b;4.c(Para G):5.a
B. 1. faster, 2. live; 3. jobs; 4. biodiversity
5. pristine; 6. farming
Reading Skill
A 1. No; 2. Yes;3. Yes; 4. No; 5. Yes
B.1. Possible answer(s): I think Mary feels
negative about the old highway because she
says that it was a long and uncomfortable
journey. She couldn' t wait for the new
highway to be built. 2. I think the author feels
neutral about the new highway right now
because the passage is organized into the
positive and negative aspects of the highway.
The writer ends the passage saying that
only time will tell if it will bring good or bad
changes.
Critical Thinking
Possible answer(s: The Grand Canal and the
Transoceanic Highway are similar because
they were both built to help people transport
goods and travel more easily across vast
distances.
Possible answer(s): I think the Transoceanic
Highway will be as successful as the Grand
Canal because it serves as a way to transport
people and goods across difcult terrain. Now
that the highway is open, people will not
want to go back to being as isolated as they
were before.
Vocabulary Practice
A 1. enormous; 2. border; 3. impact; 4. practia;
5. ruining
B.1. dense; 2. occurs; 3. prilly, 4. acessible;
5. ilustrates
C.1. network; 2. fog; 3. layers; 4. crowds
VIDEO BUILDING A RAIN FOREST
Answer Key
Before You Watch
A 1. dome; 2. aqurium; 3. canopy; 4. tunnel;
5. ramp
While You Watch
A1,3.4
B.1.b:2.c3.a
Critical Thinking
Applying Ideas: Possible answer(s): There are
several famous soccer players that come from
my city, so I would create a sports museum. The
building would be shaped like a soccer ball and
there would be turf inside for visitors to use.
1 would invite the famous players to come on
opening day, which would draw a big crowd.
HIGH-TECH SOLUTIONS 9
Answer Key
Possible answer(s):
1. smartphones, GPS, Wi-Fi, tablets, digital
cameras, hybrid cars
2. My smartphone is helpful to me because I can
stay connected wherever I am.
9A THE POWER OF VIRTUAL REALITY
Answer Key
Before You Read
A Possible answers: It could be used to
treat medical conditions like poor eyesight;
people could experience different places and
different cultures.
B. Possible answers: Athletes could do drills
with a virtual "rainer" ; People could have
virtual meetings where they' re all stting in
the same room; Organizations could create
educational material where people virtually
visit endangered places.
Reading Comprehension
A1.c2a (Para B);3. C (Para Hand h;4.a;5. b
B.1. by doing / embodied cognition; 2. reducing
reaction times; 3. eye contact; 4. scientists;
5.it' satool
Reading Skill
A1.b,f2a3.cd
B.1. Possible answer(s): Teachers could use VR
in the classroom to give their students a more
enriching experience. For example, students
could go "back in time" and "walk around"
an ancient town with other people from that
time period. In architecture, architects could
let their dients see their designs through VR to
help the client visualize what it would look like
in real life. 2. Possible answerls: the shrinking
Amazonian Rain Forest; endangered wildlife
habitats: VR could allow people to experience
firsthand the logging and see how vulnerable
the wildlife is.
Critical Thinking
The interviewer mentions creating violent
video games.
Possible answer(s: People might get addicted
to VR and think that it' s reality. That could
lead to a decrease in social interaction and
an increase in health problems, including
depression.
Vocabulary Practice
A 1. treat; 2. passive; 3. get to; 4. actual;
5. going over
B.1. b;2.a;3.a;4. b
C.1. downpour, 2. downside; 3. downturm;
4. downsize
9B HIGH-FLYING HELPERS
Answer Key
Before You Read
A Possible answer(s): They can get to hard-toreach
places such as oceans and mountain
tops; drones could be used to look for people
in danger, they could survey damage done
by wildfires or hurricanes; they could deliver
medicine and clothing.
B. surveying natural disasters; delivering
medicines; locating threats to wildlife
Reading Comprehension
A1.c2d (Para B); 3. a (Para C):4. b (Para D);
5. b
B.1. blood and vaccines; 2. 30 minutes;
3. weapons; 4. uploading drone footage
Reading Skill
A 1. medical supplies, lfe-saving supplies/medicine,
blood, health clinics, healthcare products/service,
medicine, vaccines, treatable ilnesses; 2. hardto-
reach, remote; 3. Thanks to; 4. aid
B.1.c2.c3.c;4. b;5. d
Critical Thinking
Possible answer(s): Drones could be used to drop
supplies to remote locations; for example, they
could be used to deliver vaccines and medical
testing kits to remote islands. They could be
used to monitor wildlife populations in remote
locations. They could be used to map remote
areas and help locate areas of deforestation.
Vocabulary Practice
A 1. packages; 2. asses; 3. affordable;
4. ambitious; 5. rapidly
B. 1. help; 2. succeed; 3. in detail; 4. enough;
5. armed; 6. heath
C.1. receive; 2. depend on:; 3. suspend;
4. appealed for
VIDEO DRONE DELIVERY
Answer Key
Before You Watch
A 1. startup; 2. head start; 3. autonomously;
4. Over-the-counter; 5. at a premium
B. Posible answer(sl: lightweight, small packages
like clothing
While You Watch
A6,27.1, 3,.4,5
B.1. F (They are the first to get U.S government
approval);2. NG;3. T;4.T;5 F (They are
powered by batteries.)
Critical Thinking
Possible answer(s): If drone deliveries become
common, it might cause a safety issue with
other planes flying in the area and a drone could
crash and hurt many people on the ground.
AIso, it will put delivery people out of business
Howewer, it could be a quick and easy way to
receive a package.
ALL IN THE MIND 10
Answer Key
Possible answer(s):
1.I think I have a good memory. I remember
ridinginacarasachildwithmydadona
windy country road with the windows open.
2. I think chimps are very itelligent because they
can understand commands and find ways to
solve problems.
10A WHAT" s ON YOUR MIND?
Answer Key
Before You Read
A Possible answer(s) remember complicated
facts; solve complex problems; speak multiple
languages; feel a range of emotions
B. ability to store memories
Reading Comprehension
A1.c2.a(ParaCandD);3.C(ParaF);:
4.d(Para I); 5. a (Para J)
B.1. hippocampus; 2. amygdala;
3. temporal lobe; 4. prefrontal cortex
Reading Skill
A1.a;2.c3. b;4.d .
B. 1. Self-awareness; 2. human; 3. two;
4. identity: 5. Long-term; 6. responses;
7. reverse, 8. meditation
Critical Thinking
(Para H) The smell of freshly cut grass, for
example, will generate happy felings in
someone who spent enjoyable childhood
summers in the countryside, but not in
someone who was forced to work long
hours on a farm.
Possible answer(s): I feel happy whenI
hear seagulls because it reminds me of my
childhood at the beach I also like the smell of
rain on hot earth because that reminds me of
how we would wait excitedly for the rain to
come in the middle of the summer.
Vocabulary Practice
A 1. perspective; 2. tansform; 3. vast
4. reinforce
B. 1. flexible; 2 structure; 3. functions;
4. welfare; 5. conscious; 6. emotions
C. 1. number, 2. areas; 3. majorit; 4. network;
5. assortment
10B INSIDE ANIMAL MINDS
Answer Key
Before You Read
A Possible answer(sl: I think animals can be
called itelligent, especally when they
understand commands and use tools to solve
problems. A common definition of itelligence
is“a highly developed ability to think lgialy
to understand the world around you, and to
learn things quickly."
B.1. and 2. gray parrot (words, imitation,
counting. zero concept), sheep and elephants
(face recognition), chimpanzees (making
and using tools), octopuses (emotions), dog
(linking vocabulary to photographs)
Reading Comprehension
A1.b;2.b;3.c(Para D);4. a;5. a (Para E)
B.1. No; 2. Yes;3. Yes4. No; 5. Yes
Reading Skill
A 1. actions = behaviors; 2. basic = elementary,
3. communicate = talk; 4. create = invent:
5. exhibit = show
B. (general term first, then specific examples)
1. abilities, recognize faces: 2. primates.
humans and apes; 3. species, humans;
4. forms of itelligence, creativity and language
Critical Thinking
The five sills that show an animal has
intelligence are: a good memory, an
understanding of symbols, self-awareness,
understanding of others' motives, and
creativity. (Para 9
Possible answer(s): I think Alex the parrot
is very intelligent based on these five sills.
He used his voice to imitate words which
shows he had a good memory. He had an
understanding of the abstract concept of zero,
which shows an understanding of symbols. His
ability to understand language and changing
relationships shows self. awareness as well as
the ability to understand others' motives.
Vocabulary Practice
A 1. mastered; 2. primitive; 3. dismiss
4. acknowledges
B.1. possess; 2. imitate; 3. pronounce;
4. motive; 5. abstract 6. theory
C.1. announced; 2. denounce; 3. pronounce
VIDEO BRAIN POWER
Answer Key
Before You Watch
A 1. consists of 2. to control the speed or
performance of something. 3. related to
touch, sight, hearing. etc; 4. an action that
sends a message; 5. to bring dfferent parts
together so they work well
B. Possible answer(s): The brain regulates body
temperature, swallowing. heart rate, blood
flow, balance, and muscle movement.
While You Watch
A a. diencephalon; b. cerebellum; C brain stem;
d. cerebrum
B.1. F (three-quarters); 2. T; 3. F (three parts);
4.T
Critical Thinking
Possible answer(s: I think cognitin research is
important because by understanding our brain
and how we use it, we can find ways to treat
medical conditions. When we understand how
the brain is meant to function, it is more likely
we can find ways to simulate that process when
things are not functioning as they should.
VISUAL PIONEERS 11
Answer Key
Possible answer(s):
1. Leonardo da Vinci was a great artist as his
paintings are still admired hundreds of years
after his death.
2. You can represent the world visually through
sculptures, photography, or even art forms
such as theater.
11A VAN GOGH" s WORLD
Answer Key
Before You Read
A 1. Dutch; 2. 1853; 3. 26; 4. yellow sunflowers
Reading Comprehension
A1.c(Para B);2.b;3. b;4. a5. d
B.1,4,6,3.2,5 .
Reading Skill
A 1. Instead, his father thought he should take
a "sensible" job- something like a salesclerk
or carpenter.2. . receiving financial help from
his brother Theo. 4. Following an argument
with fellow artist Paul Gauguin, van Gogh
took a azor and cut off his own earlobe.
5. Following his release from the hospital in May
1890, .. he .. shot himself .. What caused him
to take his own life .. mental ilness .. ?
6. In the spring of 1889, he was sent to a
mental hospital .. But during his periods of
calm, he was able to complete more than a
hundred masterpieces, including the cassic
Starry Night.
B.1. He realized he was meant to be a painter,
and he got financial help from his brother.
2. People there didn' t appreciate his work.
3. his argument with Gauguin
Critical Thinking
Possible answer(s): Lack of financial success:
until his death, he wasn' t able to sell a single
painting; Mental ilness: his mental health
started to dedine, he could not eat or sleep,
he heard strange sounds and thought people
wanted to hurt him; his ilness inhibited his
creativity, Loneliness: days passed and he
spoke to no one.
Possible answer(s): I think the most important
factor was probably mental ilness, because
extreme depression leaves a person feeling
hopeless.
Vocabulary Practice
A 1. innovative; 2. appreciated; 3. wandering:
4. resisted; 5. cassic
B. 1. originat 2. well again; 3. reason; 4. aware;
5. buy; 6. great
C.1. sensible; 2. sensation; 3. senseless;
4. sensitive
11B SEEING THE UGHT
Answer Key
Before You Read
A Possible answer(s): I think Operarios is a
political statement about the diversity of an
urban landscape. It' S important for all people
to have jobs and feel valued in the society.
B. Possible answer(s: I think the work of Tarsila
do Amaral is important because it looks very
different from other paintings of that time.
The work of Vivian Maier shows real people
doing real things in photographs, which might
not have been popular at the time but is
now considered to be an important work of
visual storyelling.
Reading Comprehension
A 1. b;2.d (Para C); 3. b(Para D):4.c
5. a (Para J)
B.1.c2.d;3. g:4.h:5.f6. b
Reading Skill
A 1. works, artwork; 2. celebrated, appreciated;
3. distinctly, uniquely
B. 1. regular, everyday, normal; 2. remarkable;
3. show, 4. hidden in darkness
Critical Thinking
Possible answer(s): Maybe they are afaid of
rejection and criticism; they might feel that they
are creating something for themselves only.
Possible answer(s: Pros: the artist' 5 family
feels proud and they get money, the artist s
hometown becomes famous; Cons: the artist
doesn' t get the recognition they deserve in
their lifetime; the subject of the work may
be disappointed not to have his or her image
shown and possibly made famous.
Vocabulary Practice
A 1. urban; 2. selection; 3. sttled; 4. rflects;
5. immigrant
B.1. b;2.bx3.a4.a5. a
C.1. innate; 2. nations; 3. native; 4. natural
VIDEO THE GENIUS OF PICASSO
Answer Key
Before You Watch
A 1. someone with exceptional ability; 2. to go
beyond the limits; 3. to change something so
that it appears to be new; 4. to resist
or oppose
B. a strong drive or passion to succeed
While You Watch
A See answer to Before You Watch B.
B.1. a2. a3. b
Critical Thinking
Possible answer(s: I think van Gogh was the
most talented because he had to overcome
so many obstacles that forced him to be
more determined and engrossed in his work
when he was well enough. He had a dfferent
way of seeing the world, and expressed that
through his use of color and technique.
Possible answer(s): I think there are so many
people who have a lot of artistic talent that
are not great artists now but might become
famous in the future through social media.It s
not easy to become famous, though!
FAR OUT 12
Answer Key
Possible answer(s):
1. People explore space because they want to
know more about what s beyond our planet
They might be looking for things in space that
might help cure disease or give inspiration
for new inventions on Earth. Also, I think
exploration is a basic human trait.
2. I think walking on the moon was a huge
achievement in space exploration, which then
led to ffrts to go further. We now have
photographs of faraway planets and have
even sent rovers to Mars.
12A DEFYING GRAVITY
Answer Key
Before You Read
A 1. Possible answers: I think the station is
used as a laboratory to research and test what
happens when people live in space. 2 Possible
answer(s) I think the best part of working
at the IsS is being a part of such important
research. I think the biggest challenges would
be living in such a small space without gravity,
missing your family, and worrying about all
the things that might go wrong.
B. posible dangers of spacewalking. how
astronauts prepare for a spacewalk, one
astronaut s experience in space
Reading Comprehension
A 1.d (Para Q;:2. c (Para D); 3.c (Para D);4. b; .
5. a (Para F)
B. 1. floating; 2. weightlessness; 3. route / path;
4. monitor, 5. overheat; 6. jetpack
Reading Skill
A 1. took off; 2. found out 3. carried out;
4. deal with; 5. go over, 6. pass out; 7. grew up
B.1.in;2.with;3.off;4.on;5.up;6.up
Critical Thinking
Possible answer(s: I think the most dificult
aspect of space travel would be living in an
enclosed space because that would make me
feel very claustrophobic. I like wide open spaces,
and this would make me feel trapped.
Vocabulary Practice
A 1. venture; 2. demanding; 3. internal;
4. familiaize; 5. accumulated
B.1. impressive; 2. pioneer, 3. detached;
4. concerms; 5. Consciousness
C.1. socialize; 2. hospitalized; 3. modernize;
4. popularice
12B THE ULTIMATE TRIP
Answer Key
Before You Read
A1.e:2b:3.c4.d5.a
B. Possible answer(s): I think some important
events in space travel will be colonizing Mars
and traveling to other planets.
Reading Comprehension
A 1.b(Para AN:2. c;3. b;4. a;5. d (Para F)
B.1. F (There were missions in the 1970s);
2. F It was during the Apollo program.);
3. NG;4.T;5.T;6 T
Reading Skill
A1,2
B.1.c2a3. b
Critical Thinking
Possible answer(s:
1 think it is likely that humans will build a Mars
space colony one day, especially as technology
advances and more research is done about
how to survive on the planet.
I wouldn' t be interested in going there because
it' sso far away from Earth. Also, the landscape
looks barren, and there wouldn' t be anything
to do there!
Vocabulary Practice
A 1. decades; 2. precious; 3. sustain;
4. resources; 5. extremely; 6. backing
B.1.c2c;3. b;4.c
C.1. stones; 2. metal; 3. moment
VIDEO MYSTERIES OF PLUTO
Answer Key
Before You Watch
A 1. pieces of useless or leftover material;
2. to travel completely around something
in space; 3. extremely cold; 4. the center of
something
B. dwarf planet; two-thirds; 248, -226*C ice,
nitrogen
While You Watch
A See answer to Before You Watch B.
B.1. b;2.bx3.a4. b
Critical Thinking
Possible answer(s:Idon' t think so because
Pluto is so far away from Earth.
Possible answer(s: I think humans would
have a hard time traveling through space for
as long as it would take to get to Pluto.
1 think they would struggle with the freezing
temperatures and darkness.
