AMAZING ANIMALS 1
Answer Key
Possible answer(s):
1. I really love goats because they are playful and
intelligent.
2. There are many animals with special abilities.
Some examples: Bats navigate using sonar,
owls can turn their heads all the way around,
and dogs can sense when people need help.
1A THE INCREDIBLE DOLPHIN
Answer Key
Before You Read
A (clockwise from top) 1 brain; 3. jaw;
4. flippers; 2. tail
B.b
Reading Comprehension
A1. b;2. b;3.C(Para B);4.a (Para明);
5. b (Para D)
B. Communication:a, c (Para B): Play;b, d, f
(Para C]; Teamwork e (Para D)
Reading Skill
Ac
B.1. b;2. a
Critical Thinking
communication, play, and tearwork/planning
Possible answer(s: Evidence of ineligence
in other animals includes tool use, the ability
to pay selective attention, and recognition of
patterns.
Vocabulary Practice
A 1. method; 2. assist 3. smart; 4. special;
5. advantage
B.1. alike: 2. itelligent; 3. system; 4. felings;
5. communicate
C.1. difference; 2 intlligence; 3. assistance
1B MASTER OF DISGUISE
Answer Key
Before You Read
A 1. don' t know; 2 other animals; 3. the same
B. how
Reading Comprehension
A1.b;2.c (Para B);3.a(Para B明):4.c5.c
B.1. a2c3.c4. a5. b
Reading Skill
A a
B.1.b;2.c3.a4. d
Critical Thinking
Possible answer(s: I think they are both smart
in dfferent ways. The dolphin is smart because
it' s similar to humans- -it can play and plan and
communicate. The octopus is smart because it
is so good at camouflage. I don' t know which is
smarter, butr' d rather hang out with a dolphin!
Vocabulary Practice
A 1. ability: 2. appearance; 3. hide; 4. produce;
5. patterns
B.1.b;2.a3.a4. b;5. a
C.1. survivat 2. survive; 3. survivor
VIDEO A CHAMELEON' S COLORS
Answer Key
Before You Watch
A 1. come to you; 2 bad; 3. quickly
B.1. F (to communicate with each other;
2. T; 3. F (The forests and other areas where
they live are disappearing or are being
changed by people.)
While You Watch
A See Before You Watch B.
B.1.b;2.b:3. a4. b
Critical Thinking
Possible answer(s: 1 would like to find out more
about the aardvark. It' s such a strange looking
animal. How does it use its large snout long
ears, and tail?
TRAVEL AND ADVENTURE 2
Answer Key
Possible answer(s):
1. I would like to visit China because I have
always wanted to see the Terracotta Warriors
and to stand on the Great Wall.
2. I went to New Zealand and hiked on glaciers
and swam with dolphins. It was amazing!
2A THE TRIP OF A LIFETIME
Answer Key
Before You Read
A 1. They started at Prudhoe Bay, Alaska, United
States, and finished at Ushuala, Argentina.
They traveled by bicycle. 2. They traveled
30,500 km. The trip took two years.
B. Possible answer(s): The two friends love
bicycling; they wanted to travel in a way where
they could see more of the world around them.
Reading Comprehension
A1.ax2.c3. a4. b:5.c
B.1.c2.d;3.a4.e;5. b
Reading Skill
A (boxes from top left in clockwise direction)
4. title; 5. compass; 3. scale; 2. source; 1 key
B.1. was not; 2. greater, 3. northerm; Belize
Critical Thinking
Possible answer(s): I think cyding through
mountainous areas would be the most
challenging because that would test their
abilties physically. It might also be difcult if
there were areas that had a lot of crime or
trffic/plution.
Vocabulary Practice
A1.b;2.a3.b;4.a
B.1. advice; 2. journey; 3. route; 4. relax;
5. goals; 6. worry
C.1. object (noun); 2. address (noun); 3. record
2B ADVENTURE ISLANDS
Answer Key
Before You Read
A Pssible answer(s): 1. The person is jumping
off a tower, but he is attached to a cord or a
vine so he won' t hit the ground. 2. skydiving
B. Possible answers: These are unusual sports
that you can do on the islands of Vanuatu.
Both activities are very dangerous!
Reading Comprehension
A1.b;2.c3.a4.b;5. c
B.1.T (Para B):2. NG;3. NG;4. F (Para C:;
5. T (Para 9
Reading Skill
A1.a2.b;3.a4.c
B.1. Antarctica; 2. 10 meters; 3. because
surfers just need a wave and a board;
4. skateboarding
Critical Thinking
Possible answer(s): I would suggest that they go
whitewater rafting in the national park because
it' s beautiful and exhilarating.
Vocabulary Practice
A 1. active; 2. nation; 3. almost 4. bravery
B. 1. hit 2. original: 3. century;: 4. familir,
5. tie; 6. escape
C.1. owner, 2. idea; 3. song
VIDEO EXPLORING LAPONIA
Answer Key
Before You Watch
A 1. is not; 2. in its original state; 3. set of things
they take with them
B. Possible answer(s); The weather could be
a challenge- it will be very cold and if
there are storms, they might have to stay
there for longer than they planned,It' s
in the wilderness, so there' s probably no
communication with the outside world. If they
get hurt, it could be dangerous.
While You Watch
A Possible answers: In summer, the sleds don' t
work, so the Haarbergs have to carry all their
gear on their backs.
B. Possible answer(s): 1. It' s easier in the winter
because they can transport everything on
sleds. 2. oatmeal, crackers, cheese, chocolate,
and nuts; 3. She slipped on a rock and fell
into a river, but she was not seriously hurt.
Critical Thinking
Possible answer(s: I would want to go on the
bike trek because I could see different places
and meet a lot of people. I would not try land
diving- -it sounds scary!
THE POWER OF MUSIC 3
Answer Key
Posible answer(s):
1. I like dfferent kinds of music. I really like pop
music from the 1980s. David Bowie is one of
my favorite singers. I also like Lady Gaga.
2. Music is very important in my life. I almost
always have music on whenI' m at home or
whenI m driving in the car. Ifr m feeling sad
or grumpy, music often chees me up.
3A MOVE TO THE MUSIC
Answer Key
Before You Read
A Possible answers: 1. three times a week;1 go
for a run and I do yoga. 2. I always listen to
music when I exercise. I listen to classic rock
when I run. During yoga classes, the instructor
usually plays peaceful music.
B. Possible answer(s}: I think music helps because
it can distract us while we' re exercising. It can
also make us feel motivated to do our best,
When the songs are upbeat, the music can
put us in a good mood.
Reading Comprehension
A1.a2. c 3. b (Para B and sidebar;4. c
5. b (Para D)
B. 1. distracts; 2. tired; 3. motivate; 4. make;
5. control; 6. depression
Reading Skill
A1.b:2.a3.c
B. Main idea: Generally, songs with 120-140
beats per minute (BPM) are the best for
exercising. 1. because most people want to
get their heart rate up to this level during a
workout; 2. Lady Gaga; 3. "Make You Feel
My Love" by Adele
Critical Thinking
Possible answer(S): I prefer listening to songs in
English when I exercise, because a lot of songs
that I like in my own language are slower than
120 beats per minute. Ilike the song "Viva La
Vida”by Coldplay.
Vocabulary Practice
A 1. range; 2. seems; 3. steady, 4. beat; 5. beat
6. energy
B.1. distract 2. mood; 3. control: 4. social;
5. pay attention
C.1. in; 2. under; 3. out of
3B A MUSICAL BOOST
Answer Key
Before You Read
A Possible answer(S): 1 Singing: emotion,
hearing, memory, speech; Playing an
instrument emotion, movement, touch,
sight, balance, hearing, memory, Listening to
music. emotion, hearing. 2. I think music and
language are similar in that they both involve
hearing, emotion, and communicating with
other people.
B. a
Reading Comprehension
A1.a2. b(Para B):3.c4.c5. b
B.1.F (Para B and C:2. NG; 3. NG;4.T (Para D);
5. NG; 6. T (Para E)
Reading Skill
A Line 2: because of, Line 4: Since;
Line 7: due to
B.1. because of its ability to express emotions
across cultures; 2. Since he wanted to
include a variety of Western music types;
3. probably due to the fact that the rhythms
and melodies of Western music are similar to
those of basic human speech
Critical Thinking
Possible answer(s: Listening to music helps
me study some subjects such as science.
Classical music helps me because it doesn" t have
any words. If I am reading something dificult, I
find music with lyrics too distracting.
Vocabulary Practice
A1.a2a3.a4.b;5. b
B.1. connection; 2. improved; 3. damaged;
4. normally; 5. sharp
C.1. connect; 2. react; 3. discuss
VIDEO THE MOZART EFFECT
Answer Key
Before You Watch
A 1. figure out; 2. IQ; 3. experiment
B.12 months of the year, 7 wonders of the
world; 24 hours in a day; 18 holes on a golf
course
While You Watch
A See Before You Watch B.
B.1. a2.b;3. b
Critical Thinking
Possible answer(s): It was good that Dr. Coan
tried a diferent kind of music But I think that
once participants knew the general format of
the word puzzles, it was easier for them to
figure out the answers for the other puzzles
later on.
Answers will vary.
INTO SPACE 4
Answer Key
Possible answer(s):
1. There are a lot of good movies and TV shows
about space! I liked the movie The Martian,
where the main character is left alone on Mars
and he has to figure out how to survive.
2. I think there might be life in outer space,
because the universe is so big!
4A LIFE BEYOND EARTH?
Answer Key
Before You Read
A 1. planets,; 2. galaxy; 3. telescope;
4. astronomer
B.a
Reading Comprehension
A1. b;2.c3.a(Para C:4. b;5.a (Para D)
B.1. the Hubble Telescope (Para B); 2. no,
because the distance between planets is too
great (Para D); 3. flashes of light (Para D)
Reading Skill
A Possible answer(s):
- inelligent life exists esewhere- first reason
is time. The second reason is size.
- powerful telescopes
- itelligent beings might eventually contact
us; they could be trying to communicate
with us now
B.1.12 bllion; 2. huge; 3. galaxies; 4. telescopes;
5. radio signals; 6. flashes of light
Critical Thinking
Possible answer(s): I think people would be very
excited. I think govenments around the world
would need to work together. Some people
would want to make contact immediately, but
others would be scared that we could be invaded.
Vocabulary Practice
A 1. powerful; 2. search; 3. identity; 4. allow;
5. exist
B.1.a2. b;3.a;4.b;5.a
C.1. harm; 2 care; 3. power
4B LVING IN SPACE
Answer Key
Before You Read
A 1. rocket; 2. astronauts; 3. establish; 4. colony
B. Possible answer(s: (Sstudents should support
their opinions with reasons,J) Sending humans
into space to live is a good idea because we
might need to find new places to live, if
dimate change continues to impact Earth.
Reading Comprehension
A1.a2.b;3.c(Para B):4.c5. C
B.1.c2.d;3.b;4.a
Reading Skill
A Main idea: Humans should colonize space.
Supporting reasons: we can learn a lot,
we can create new human societies on other
planets; any advances made in space will
benefit people on Earth.
B.1. too expensive; 2. the jourmney is not short
3. health problems; 4. life would be extremely
difiult
Critical Thinking
Possible answer(s: It depends.I" d only want
to move to Mars if everyone in my family
moved, too. Othenwise r d be too lonely,
Possible answer(s: The reading has given
me more to think about Stephen Hawking
said that our future should be safe" once
we colonize space. which I agree with. But I
would hate having to stay indoors most of the
time (Para E)!
Vocabulary Practice
A 1. independent; 2 surface; 3. mission;
4. neighbor; 5. environment
B.1. a2. a;3. b:4.a;5. b
C. 1. unfamiliar; 2 work 3. safe
VIDEO THE RED PLANET
Answer Key
Before You Watch
A 1. humanity. 2. barren; 3. launch
B.1.F (4.5 bllion; 2. F (the Roman god of war;:
3. T (Olympus Mons); 4. F (50 million years
ago, all volcanic activity stopped)
While You Watch
A See Before You Watch B.
B.1.4.5; 2. smallest; 3. Africa; 4. Earth" s;
5. minus 142/ -142; 6. ice
Critical Thinking
Answers will vary.
CITY LIFE 5
Answer Key
Possible answer(s):
1. I think many people choose to live in cities
because there are more job opportunities
there. Also, big cities are usually more exciting
because there is a lot to do and see (compared
to small towns).
2. New York City, Los Angeles, Tokyo, Shanghai,
London, Paris, Dubai, Nairobi, Rio de Janeiro;
these cities are important because they are
rich in history and have large populations.
Some are capital cities, so they are political
and/or business centers.
5A GLOBAL CITIES
Answer Key
Before You Read
A Possible answers:1. r ve been to New York,
London, and Paris. AIl are exciting places,
with a lot of people and a fast-paced way
of life. 2. Al four cities are similar in terms of
business New York and London are similar
in terms of people, too. Tokyo does not
score as well in terms of entertainment and
politics. Paris doesn" t score as well in terms
of people.
B. Possible answer(S): Nairobi, in Kenya, might
become more powerful because it is a
rising technology hub and could atract
international businesses and talented people.
Reading Comprehension
A1.a2. b;3.C(Para C):4. a5. a
B. 1. Shanghai; 2. Indian; 3. middle class;
4. Egypt; 5. politics
Reading Skill
A 1. powerful; 2. red; 3. media; 4. yellow;
5. politis
B.1.a2.b;3.c
Critical Thinking
Answers will vary.
Vocabulary Practice
A 1. options; 2. especially: 3. aracts;
4. international; 5. predict
B.1. b;2.bx3.a4.a5. b .
C.1. net; 2. national; 3. section
5B A TASTE OF TWO CITIES
Answer Key
Before You Read
A 1. neighborhood; 2. settle; 3. immigrants
B. Possible answer(s): Maybe there are Japanese
immigrants in Sao Paulo, and Brazilin
immigrants in Hamamatsu.
Reading Comprehension
A1. b;2.a(Para B):3. b(Para B):4. b;
5. I
B.1.NG;2.F(ParaC);3.NG;4.T(ParaC;
5. F (Para 9
Reading Skill
A Possible answer(s): Main idea: Why is each
country' s food so popular in the other?
Key details: In 1908, people from Japan
began moving to Brazil to work on coffee
plantations. / Over time, the nikkei opened
many Japanese markets and restaurants in
the Liberdade ditrict. / In the 1980s .. [o]ver
300.000 Japanese-Brazilians moved to Japan,
mainly to work in electronics and automobile
factories. / Over time, a number of Brazilian
restaurants and stores opened in Hamamatsu.1
Today, it' s possible to eat excellent Japanese
food in Sao Paulo and traditional Brazilian
cuisine in Hamamatsu.
B.1. coffee; 2. Liberdade; 3. markets;
4. sushi; 5. toursts; 6. 1980s; 7. factories;
8. Portuguese; 9. bread
Critical Thinking
Possible answer(s: There are many ways that my
country' s cuisine has been infuenced by foreign
cuisines. Pizza (from Italy) and noodles (from
China) are widely available. We also have spicy
dishes with hot peppers from Mexico.
Vocabulary Practice
A 1. popular; 2. distict 3. coast 4. traditional;
5. stores; 6. goods
B.1.a;2.b:3. a4. b
C. 1. population; 2. communication; 3. generation
VIDEO NEW YORK SKYSCRAPER
Answer Key
Before You Watch
A 1. five years; 2. Possible answer(s): the long
pole on the top of the building: the spire is
78 meters tall (subtract 288 from 366);
3. Possible answer(s): the part of the building
under the ground
B. Possible answer(S): I think building the spire
on such a tall building must have been very
dificlt.
While You Watch
Aab;d
B. 1. see what he is ifting; 2. large size;
3. dangerous; 4. above
Critical Thinking
Possible answer(s: Pros: good views, 24-hour
security, easier to maintain (no yard); Cons: risk
of fires, lack of space, not a lot of nature
BACKYARD DISCOVERIES 6
Answer Key
Possible answer(s):
1. I live near the ocean, and I spend a lot of time
there swimming in the summer and going for
walks in the winter.
2. There are seagulls and crabs on the beach, and
also seaweed and beach roses that grow nearby.
6A IN ONE CUBIC FOOT
Answer Key
Before You Read
A 1. organisms; 2. tiny; 3. soil
B. Possible answer(s): They break down dead
plants and animals into nutrients, so that
the living animals and plants in the area
can thrive.
Reading Comprehension
A1.a2. b;3. b (Para B);4.c (ParaC);5.a
B.1. a healthy environment; 2 many were new
species (Coral Reef caption); 3. Monteverde,
Costa Rica (Tropical Cloud Forest caption)
Reading Skill
A Paragraph B Line 2: When; Line 3: Later;
Line 4: eventually: Line 5: then
B. (clockwise from top)ae;d; t: b;c
Crtical Thinking
Possible answer(s): a city park- -I want to
know whether urban life afects the variety of
organisms; a riverbed- -1 wonder if there are
different organisms here in comparison to the
coral reef, a cave- surely a dark cave would have
fewer organisms.I d love to be proved wrong!
Vocabulary Practice
A 1. species; 2. cycle; 3. regions; 4. scientist;
5. discovered
B.1. a2b;3.b;4. b;5.a .
C.1. up with; 2. out of; 3. into
6B WHAT' s IN YOUR NEIGHBORHOOD?
Answer Key
Before You Read
A Possible answer(s: 1. Anyone can be a citizen
scientist. 2. They take photos or interview
people and then share their pictures and
information on the Internet This helps
scientists get important information quickly.
B.a;c
Reading Comprehension
A1. b; 2.c 3. a; 4. b (sidebar: 5. b (sidebar)
B.1.F (Para A); 2. T (Para B); 3. NG;
4. F (Para D); 5. NG
Reading Skill
Aa.3;b.4c 2; d.1
B.1. website; 2. tips; 3. nest; 4. visit 5. upload
Critical Thinking
Possible answer(s): Project name: NestWatch;
Purpose: to report on bird nesting sites so
that researchers can track bird populations and
how their nesting sites change over time; How
you can take part: Take a short test to be a
NestWatcher and then find a nest, visit it every
three or four days and record what you see, then
upload your observations to the website.
Vocabulary Practice
A 1. research; 2. upload; 3. review; 4. images;
5. contribute
B.1.b;2.b;3.b;4.a;5.a
C. 1. place;2. care; 3. a break
VIDEO BIOBLITZ
Answer Key
Before You Watch
A1.c2a3. d:4. b
B. Possible answer(s: Problems- -bad weather
conditions, poor Wi-Fi connection. Yes,I d be
interested in taking part in a BioBlitz because
r d like to contribute to scientific research.
I might meet people with similar interests, too.
While You Watch
Aa.4;b.2:c 5:d.3:e.1
B.1.b;2.b;3.a4. b
Critical Thinking
See Critical Thinking Unit 6B for an example.
WHEN DINOSAURS RULED 7
Answer Key
Possible answer(s):
1.I ve seen Jurassic Park. I liked it because it' s
hard to imagine animals that huge, and the
movie showed how powerful dinosaurs were.
2. I think people are fascinated because the
dinosaurs were so powerful, yet they still became
extinct. It s also interesting to imagine what Earth
would be like if dinosaurs still existed today.
7A THE TRUTH ABOUT DINOSAURS
Answer Key
Before You Read
A 1. prehistoric reptiles; 2. 66 mllin years ago;
if an animal is extinct, it means that it no
longer exists.
B.1. Was T. rex a powerful predator? Yes or
No; 2. Could dinosaurs fly? No; 3. Are all
dinosaurs extinct? Not entirely (birds)
Reading Comprehension
A 1.b;2.c(Para A1:3. c4. b;5. C (Para D)
B.1.c (Para C:2. a (Para A):3. a (Para A);
4.b(Para B):5. c (Para C)
Reading Skill
A 1. like; 2. For example; 3. such as
B.1. the two-meter Troodon; 2. in the movies,
T. rex is often a fast-moving giant;
3. Tupuxuara
C.1.c2.e;3. f,4.a;5.d
Critical Thinking
) Possible answer(s): (Para A) But they now
believea few dinosaurs were intelligent.
(Para B) While some scientists think
Tyrannosaurus rex was a powerful predator,
othersthinkthe opposite is true. / It was too
large to move very quickly. so itprobably
moved about as fast as an elephant. (Para C)
Scientistsbelievepterosaurs were actually very
heavy. So theyorobablycould not take off
from the ground like birds.
Possible answer(s): (Para A) But they now
beleve a few dinosaurs were itelligent.
(Para B) While some scientists think
Tyrannosaurus rex was a powerful predator,
others think the opposite is true. / It was too
large to move very quickly, s0 it probably
moved about as fast as an elephant. (Para Q
Scientists believe pterosaurs were actully very
heary. So they probably could not take off
from the ground like birds.
Possible answer(s): I thinkit' s likely that a
few dinosaurs were itelligent. It seems like
the T. rex must have been a predator, butit' s
possible that it couldn' t move wll. Maybe
pterosaurs could take off like birds, but
scientists haven' t found out how yet.
Vocabulary Practice
A 1. in realit; 2. giant; 3. completely;
4. probably: 5. climate
B.1. relative; 2. heavy; 3. hunter; 4. opposite
C.1. teacher; 2. actor, 3. inventor
7B MYSTERY OF THE TERRIBLE HAND
Answer Key
Before You Read
A 1. claws; 2 fossils; 3. humps
B. Students' predictions will vary. What is unusual
about this dinosaur are its huge hands" and
claws. It also had a hump on its back.
Reading Comprehension
A 1.c2. b (Para A and B); 3. a (Para C);
4. c (Para C;5 b (Para D)
B.1.D:2. B:3. A:4.C
Reading Skill
A1.c2a3. b;4.d
B.1. an area in Mongolia' s Gobi Desert
2. trrible hand; 3. a type of dinosaur that
looked like a modern-day ostrich
Critical Thinking
Possible answer(s: Maybe it could store water
and it was a way to stay hydrated.
Vocabulary Practice
A 1. length; 2 estimate; 3. similar; 4. Perhaps
B.1. b;2.bx3. bx;4.a;5.bx6.a
C. 1. ask for; 2. expres; 3. dfferent
VIDEO DINOSAURS: A BRIEF HISTORY
Answer Key
Before You Watch
A 1. plants; 2. other animals; 3. a rock that
travels through space
B.acd
While You Watch
A See Before You Watch B.
B.1.a2 b;3. b;4. b
Critical Thinking
Possible answer(s: I would like to bring back
the Deinocheirus. because I want to find out
what the hump is really used for! I would
be scared to get too dose, but I would be
interested to see something that enormous!
Possible answer(s:Idon' t thinkit' s a good
idea to bring back dinosaurs because they
may attack the wildife we have today.
STORIES AND STORYTELLERS 8
Answer Key
Possible answer(s:
1. One of my favorite books is The Giver by Lois
Lowry, about a future world that seems perfect
at first. but isn' t It falls to Jonas, a young boy.
to change this world. I like this book because it' s
very meaningful, yet easy to read.
2. "Beauty and the Beast”is still popular today
because it teaches an important lesson about
thinking beyond someone' s looks. Beauty
falls in love with the Beast because of his
personality.
8A THE BROTHERS GRIMM
Answer Key
Before You Read
A Possible answer(s): They wrote fairy tales; they
first wrote these for aduts.
Reading Comprehension
A1.c2a3. b(Para A):4. c5. b (Para C
B. Possible answer(s): 1. "Cinderella," “Snow
White," Litte Red Riding Hood' ;2. "Hansel
and Gretel" ;3. They "softened" the tales and
added drawings. 4. work hard, be good, listen
to your parents
Reading Skill
A Answers will vary.
B.1. stoyellers; 2. similar; 3. dangerous;
4. adults; 5. children
Critical Thinking
Possible answer(s: The TV show Once Upon a
Time retells cassic fairy tales. In this show, the
fairy- tale characters- including Snow White and
her evil stepmother- -are transported to modernday
United States! One interesting change is that
the evil stepmother starts off as bad, but then you
understand her story, and she becomes
good. The moral is that everyone has good
inside of them and is capable of change.
Vocabulary Practice
A 1. cllectioni; 2. magical; 3. scary; 4. Although;
5. beliefs; 6. published
B. 1. text; 2. primarily: 3. added; 4. magical;
5. suitable; 6. beliefs; 7. published
C.1. music; 2. magic 3. origin
8B THE SEVEN RAVENS
Answer Key
Before You Read
A 1. 8; 2. to get water for their siter; 3. The
boys began to fight, and the water jug fell
into the well. This made the boys scared to
go home.
B. Possible answer(s): The boys will be turned
into ravens. The gil will grow up and save her
brothers.
Reading Comprehension
A1.b;2.a3. b:4.c (ParaC;5. b
B.a.2:b.7:c1;d.4e.8;f.5;g. 3;h.6.
Reading Skill
A 1. Hansel and Gretel; 2. stepmother,
3. children; 4. house; 5. old woman;
6. old woman / witch; 7. children; 8. oven
B.1. her finger, 2. seven plates and seven cups;
3. the brothers and their sister
Critical Thinking
Possible answer(s): I would make the girl find
out about her brothers in an interesting way.
Maybe there can be a magical guide who
tells her how to find her brothers. I would
definitely soften the story. Instead of cuting off
her finger, maybe the ginl can give up something
precious that she owns, like an expensive watch.
Vocabulary Practice
A1.a2.b:3. a4.a5. b;6.a
B.1. determined; 2. affect; 3. forget
C.1. affected; 2. effec; 3. affect
VIDEO FAIRY-TALE CASTLE
Answer Key
Before You Watch
A1.b;2.a3. c
While You Watch
A aandc
B.1.a2.b:;3.b;4.a
Critical Thinking
Possible answer(s): I think the Harry Potter books
will still be popular hundreds of years from now.
The book' s themes of family, friendship, and
good Vs. evil will continue to be relevant in the
future. Also,it s fun to read stories about magic
and the supermatural.
UNUSUAL JOBS 9
Answer Key
Possible answer(s:
1. window cleaners for skyscrapers, food tasters
2. I think it could be fun being a food taster. But
I am scared of heights, so I definitely don' t
want to clean windows on skyscrapers!
9A MEET THE METEORITE HUNTER .
Answer Key
Before You Read
A Possible answer(s): 1. a space rock that lands
on Earth; 2. I think scientists are interested
because they can lear more about outer
space by studying the meteorites.
B. Possible answers: 1. Michael Farmer is a
meteorite hunter. He goes around the world
to find meteorites. Then he sells them. 2. He
probably has to go to remote places to find
the meteortes.
Reading Comprehension
A 1.a2. b (Para A); 3. a (Para B); 4. b (Para C;
5.c
B. 1. the law; 2. meteorite pieces; 3. a pllasie;
4. new meteorites; 5. scientists
Reading Skil
A.Line 1: 200 orsg; Line 2: One Line 30n2011
Line 5: just CvEr 300 apund2.1;Line 6:
Scond-oldest Line 8: Ower a year; Line 9:
appraximately 10 times
A Line 1: 200 or so; Line 2: One; Line 3: in 2011;
Line 5: just over 300, around 2.1; Line 6:
second-oldest Line 8: over a year; Line 9:
approximately 10 times
B.1. about 70 or so; 25100.000; 3. around
4.5 bllion years old; 4.53 kilograms
Critical Thinking
Possible answer(s: 1 think meteorites should
belong to museums or scientists, because we can
learn a lot from their research. Maybe smaller
pieces that are similar to ones that are already
being studied could be sold to private collectors.
Vocabulary Practice
A 1. in demand; 2. legal; 3. law; 4. valuable;
5. worth; 6. locate
B.1. freeze; 2. heavy, 3. a set of gold coins;
4. buys
C.1. chest; 2 buried; 3. national
9B SMOKEJUMPERS
Answer Key
Before You Read
A 1. burn; 2. hectare; 3. wildfire
B. Possible answer(s): They jump from planes
into areas where there' s a fire that no one else
can reach. They try to stop the spread of the
fire by cuting down the trees around it
Reading Comprehension
A1. b:2.c (Para B):3. a (ParaC;:4. c;
5. b (Para D)
B. Possible answer(s): 1. shovels and axes (Para B);
2. burable material like dry grass and dead
trees (Para B); 3. how to find food in the forest
or make simple fumiture from trees (Para 9
Reading Skill
A How smokejumpers fight fires (Para B); What
a smokejumper is (Para A): Why people like
being smokejumpers (Para D}; Requirements
to be a smokejumper (Para Q)
B. Possible answer(s):
Para A- special frefighterjump into hard-toreach
areas;
Para B- examine land/main goal to slow
progress of fire/use basic equipment:
Para C- mostly men. but more women now/
height and weight important factors/need to
be able to survive in the wilderness;
Para D- good job for "tough guys"
Critical Thinking
Answers will vary.
Possible answer(s: 1. a circus performer; They
like to travel and do thiling stunts. 2. a war
journalist They want to show the world what
is really happening in war zones. 3. a window
cleaner for a high-ise building; They like
heights, and they get to see a city ina
unique way.
Vocabulary Practice
A 1. employed; 2. race; 3. occupation;
4. equipment; 5. capable; 6. majority
B.1.a;2.b;3. b;4.a
C. 1. improve; 2. equip; 3. employ
VIDEO SNAKE CATCHERS
Answer Key
Before You Watch
A 1. is not; harmful; 2. were bom; 3. wet and
soft; 4. send and receive radio or television
signals
While You Watch
A 1. reptiles;2.7;3. 90;4. 1.5
B.1.a;2.b:3. b .
Critical Thinking
Possible answer(S): golf ball divers, meteorite
hunters, smokejumpers, hackers, upcyclers,
circus performers, war joumalists, private
detectives, ski instructors, window dleaners
working on high-rises, volunteer firefighters,
snake catchers. Answers will vary for jobs that
students are interested in or best suited for.
Example answer: I would like to be an upcyder
because 1 like being creative and Iwant to help
the environment.
UNCOVERING THE PAST 10
Answer Key
Possible answer(s):
1. the Parthenon; the Coliseum; the Pyramids;
Teotihuacan; Machu Picchu; the terracotta
soldiers
2. Answers will vary.
10A THE ARMY' s TRUE COLORS
Answer Key
Before You Read
A 1. Archeologists; artifacts; 2. tomb; 3. warrior
B. Possible answer(s): The colors faded over time;
when outside air hit the colors, it caused the
coating undermeath the paint to fall off.
Reading Comprehension
A1.b;2.a3. b;4. a (Para Q; 5. c (Para D)
B.1. emperor; 2. tomb; 3. army; 4. brown;
5. liquid; 6. plastic
Reading Skill
A1.b;2.a3.a4. b;5.a
Crtical Thinking
Possible answer(s): Pros: more tourists might come
to visit; people can see what the army originally
looked like; it would show how dfferent the
soldiers originally looked from one another. Cons:
paint might make the wariors disintegrate; current
artists may not be able to match the original colors.
Vocabulary Practice
A 1. constructed; 2. protect; 3. techniques;
4. army; 5. revealed; 6. liquid; 7. network
B.1. a2. b;3.a
C.1. a secret; 2. the truth; 3. the cause
10B WONDERS OF EGYPT
Answer Key
Before You Read
A1.T:2T;3. T
B.C
Reading Comprehension
A1.a2a3.c4.b:5. b (Para D)
B. 1. F (about 80 years); 2. NG 3. T (Para B);
4.T(ParaC)
Reading Skill
A 1. ordinary Egyptians; 2. 80 years; 3. teams
and roles; 4. arthritis; 5. 30-35 years;
6. medical care; 7. proud; 8 national project
Crtical Thinking
Possible answer(s): The author thinks the
pyramid builders had mostly positive feings
about their work because he/she stresses that
even though the work was hard, the workers
had enough food and received medical care.
Also, paragraph D is about how proud the
workers were. They wrote Friends of Khufu
on a wall, and the quote from Zahi Hawass
emphasizes that the workers were proud to be
part of a national project.
Vocabulary Practice
A 1. competed; 2. According to; 3. role; 4. task
5. proud; 6. icon
B.1. ordinary; 2 task; 3. confirmed; 4. block;
5. involved
C.1. impossible; 2. complete; 3. give
VIDEO CITY IN THE CLOUDS
Answer Key
Before You Watch
A 1. empire; 2. aspect 3. ruins; 4. engineering
While You Watch
A 1. 500; 2. stone; 3. metal; 4. earthquakes;
5. farmer; 6. 2007
Critical Thinking
Possible answer(s): It depends. I think thatit s
OK for some artifacts to be in museums to
educate more people about the historical sites.
However, I think that most artifacts found
today should be left at their original sites or at
least be looked after by experts in that country.
Answers will vary.
PLASTIC PLANET 11
Answer Key
Possible answer(s):
1. I think global warming. air pollution, and
the disappearance of the bee population are
some of the most important issues facing the
environment today.
2. I live near the ocean, so my community
organizes a beach clean-up day日few times a
year. There is also a move to recycle materials
and compost food to cut down on waste.
11A THE PROBLEM WITH PLASTIC
Answer Key
Before You Read
A 1. Possible answer(s): building, packaging,
industrial machinery, textiles; almost 40
percent 2. 448 milion tons; 3. building and
construction- -35 years; packaging- Hess than
six months
B. Possible answers: Sea animals could eat or
get caught in the plastic.
Reading Comprehension
A1.c2b;3. a;4. b(Para D);5. b (Para 0
B.1. T (Para B); 2. F (Para B); 3. NG;4. F (Para D];:
5. NG
Reading Skill
A "Imagine you ate lunch and then just felt
weak . and hungry all day," says marine
biologist Matthew Savoca. "That would be
very confusing."
According to Savoca, "Single-use plastics are
the worst"
"1 think we' II know the answers in 5 to 10
years' time," says Debra Lee Magadini from
Columbia University.
Possible answer(s: The first and second
quotes support the statements in the reading.
The third quote gives expert evidence.
B.1.b:2a3.c4.a
Critical Thinking
Possible answer(s: Ocean plastic could affect
people who eat seafood, because they could be
eating the plastic that the sea animals ate. It is
also unpleasant to swim in plastic, or to see trash
in the water. More importantly. the plastic could
make certain sea creatures extinct or endangered,
which could affect all of us. It s hard to know how
the delicate balance of the ecosystem works, but
plastic can' t be good for it
Vocabulary Practice
A 1. Rescue; 2. recycle; 3. common; 4. huge
B. 1. take it out; 2. usually happens; 3. strong;
4. difficult; 5. al; 6. continue far into the future
C.1. extend; 2. except 3. extract
11B FIVE TIPS FOR USING LESS PLASTIC
Answer Key
Before You Read
A Possible answer(S): plastic fork, plastic rings
to hold soda cans, bottle top, glove, straw,
soda bottle; Yes, many of them are single-use
items.
B. Possible answer(s: I can use reusable bottles
and bring my own fork and knife when I am
going to eat fast food.
Reading Comprehension
A1.a2. b (Para B):3. a:4.c (Para E):5.c
B.1. Bundanoon; 2. San Francisco; 3. Seattle;
4. United Kingdom; 5. Denmark, 6. Norway
Reading Skill
A 1. Roughly 10 percent are used in the United
States alone. 2. Skip the straw. 3. Buya
reusable bottle and fil it with any type of
beverage you like. 4. Some cities .. have
completely or partially banned bottled water.
5. .. but it is possible to recycle most bottles
and milk or juice cartons.
B.1.c2.c3.b;4.a;5. b
Critical Thinking
Answers will vary.
Vocabulary Practice
A 1. reduce; 2. tax; 3. Customers; 4. containers;
5. globally
B.1. quit; 2. bans; 3. pollute; 4. avoid; 5. refund
C.1. warming: 2. problem; 3. awareness
VIDEO OUR PLASTIC WORLD
Answer Key
Before You Watch
A1.b;2.c3.d;4.a
B. Possible answer(s): pens, computer mouse,
phone case, water bottles; I probably use at
least 30 plastic items a day. I try not to use
single-use plastics, but a lot of times Ihave to
because of food packaging.
While You Watch
A 1. oil; 2. single-use; 3. plants; 4. faster
B.1. a2.b;3. b
Critical Thinking
Possible answer(s): Your project name: Cash
for Coffee Cups; Project' s purpose/focus:
to get people to stop using single-use coffee
cups, which have plastic lids; Actions required:
Convince coffee shops to charge a small fee for a
single- use cup, to encourage everyone to bring a
reusable coffee cup from home. Use the money
to help fund bioplastics research.
VANISHED! 12
Answer Key
Possible answer(s):
1. Marco Polo- China; Ibn Battuta- Asia, the
Middle East, Africax Neil Armstrong- -the
moon; Zheng He- -India
2. Glenn Miller, Kurt Cobain, Anastasia Romanow,
Tutankhamun, Steve Fosset
12A MYSTERY ON THE MOUNTAIN
Answer Key
Before You Read
A 1. 8.850; 2. 4; 3. Nepal; 4. 1953; 5. cold;
6. oxygen
B. Possible answers: I think it will be about the
two men who disappeared on Mount Everest in
1924. Maybe now the mystery has been solved.
Reading Comprehension
A1.b:2.a3.c (Para B andC;:4.a;5. b
B. George Mllory: b, c; Andrew Irvine: d;
Both:a, e
Reading Skill
A Possible answer(s): Evidence for. the team
found Mallory s oxygen tank; no photos.
Evidence against dificult path/ poor
equipment no frostbite.
B. 1. oxygen; 2. body; 3. photo; 4. leave;
5. dificult; 6. equipment; 7. frostbite;
8. common
Critical Thinking
Possible answer(s):
I think they reached the top because Mallory
did not have the photo of his wife anymore.
If someone found the camera that Mallory and
Irvine used, that could solve the mystery.
Vocabulary Practice
A 1. unfortunately; 2. achievement; 3. proved;
4. path; 5. suffered
B. 1. dead body; 2. parts; 3. tent; 4. don' t think;
5. makes no
C.1. what; 2. who; 3. when
12B THE MISSING PILOT
Answer Key
Before You Read
A the first woman to tly a plane alone across the
Atlantic Ocean
B. Possible answer(s): Their plane might have
run out of fuel and crashed in the ocean, or
maybe they landed on a deserted island.
Reading Comprehension
A1.b;2.c (Para A):3. c(ParaA):4.c5.b
B.1.d2.a3. b;4.c
Reading Skill
A 1. without a doubt; 2. likely. 3. Perhaps;
4. might; 5. could; 6. probably
B. Possible answer(s):1. 5;2.4:;3.2;4.1;5.1;
6.4
Critical Thinking
Earhart got lost somewhere over the Pacific
her plane ran out of gas, and she crashed into
the sea.
Possible answer(s): I agree with the author.
1 think that s probably what happened, but
I like the idea that they made it to the island.
Vocabulary Practice
A 1. headed; 2. effort; 3. investigation;
4. disappearance; 5. bright
B. 1. bright and clear; 2. hits the ground or sea
hard; 3. airport; 4. get closer to; 5. answer
or reply
C1. ability: 2. like; 3. appear
VIDEO EARHART MYSTERY
Answer Key
Before You Watch
A 1. thirst; 2. spy; 3. prisoner, 4. pretend; 5. reef
While You Watch
A 1. gas; 2. water, 3. died; 4. reason;
5. housewife
Critical Thinking
Possible answer(s:
Some people think the moon landings were
fimed in Hollywood. 1 Some people deny that
global warming exists. / Some people believe
the Earth is flat.
I think some people blieve in conspiracy
theories because they do not trust those in
power or because they do not understand the
facts. I usually do not believe in conspiracy
theories as I trust the facts given by scientists
and experts. /I used to think that the
pyramids in Egypt were built by space aliens,
but now that archeolagists have discovered
the site where the workers once lived, I can
see from the evidence that the pyramids were
built by humans.
