Unit 1
Sports and Fitness. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Unit 2
Skin Deep. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Unit 3
Animals in Danger. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Review 1
The Lost World. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Unit 4
Violent Earth. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Unit 5
Islands and Beaches. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Unit 6
Ancient Mysteries. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Review 2
The Serengeti. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Unit 7
Global Addictions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Unit 8
Legendary Voyages. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Unit 9
Stories of Survival. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Review 3
The Forbidden City. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Unit 10
All in the Mind . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Unit 11
Art and Life. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Unit 12
Medical Challenges. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Review 4
Banks of the Seine. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Unit 13
Words and Pictures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
Unit 14
Love and Attraction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Unit 15
Food and Health. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Review 5
Mystic Waters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Unit 16
Design and Engineering. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
Unit 17
Human Journey . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Unit 18
Conservation Challenges. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
Review 6
Island of Statues. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Answer Key
Unit 1
1B Pushing the Limit
Sports and Fitness
Before You Read (p.17)
Warm up (p.11)
1. Answers will vary.
2. Answers will vary.
3. Answers will vary.
1A The World’s Game
Before You Read (p.12)
A.
1.T
2.T
3.F
4.T
B.
Answers will vary.
Reading Comprehension (p.15)
A.
1.a.version
b.originated
c.annually
2. c
3.Immigrants from the Balkans and
other countries bring the sport to
Australia.
4.Australia, NG, Spain, North America,
South Korea, Brazil, South Africa
5. European teams
6.d
7.d
B.
Asia: d, h
Australia: b, e, g
North America: a, c, f
Vocabulary Practice (p.16)
A.
1.enthusiastic
2.version
3.evolved
4.awarded
5.intense
B.
1.a
2.a
3.b
4.b
5.a
A.
1.Olympics
2.medal
3.train
4.athletes
B.
1. Answers will vary.
2. Answers will vary.
Reading Comprehension (p.20)
A.
1.a
2.c
3. fast-twitch fibers
4.It causes tiredness, muscle pain and
difficult breathing.
5.a
6.Hemoglobin carries oxygen around
the body.
7.d
8. Greg Louganis: b
Louganis’ mother: c
Tegla Loroupe: a
Sean McCann: d
9. b
B.
1. Marathon runners: b and e
2. Gymnasts: c and f
3. Both: a and d
Vocabulary Practice (p.21)
A.
1.champion
2. has increased
3.competed
4.adjust
5.attributes
6.psychologically
7.genetic
1C Our City Needs Sports
Before You Read (p.22)
A.
1.For
2. Newspaper. Editors and readers of the
newspaper.
Unit 1
1
Reading Explorer: Theme-based Anthology
Reading Comprehension (p.23)
2A What is beauty
A.
Before You Read (p.26)
1.The need to build more housing
estates.
2.b
3.reports, writing, bow, venue, sporting
events, forced, international
4. The athletes’ lives are disrupted.
5.2012
6. 1. Hong Kong athletes have only won
3 Olympic medals / medal tally at
international events is low.
2. There is need for housing / money
should be spent on housing.
7. 1. Infrastructure including talent
identification programs and
specialized training facilities
2.Scholarships
8.Stellar
9.Because of lack of post-retirement
employment or study options
Explore More (p.24)
A.
1.d
2.a
3.b
4.c
5.c
B.
1.automatically
2.evolved
3.attributes
4.adjust
5.generate
6.enhances
7.prospect
8.intense
9.data
10.genetic
Unit 2
Skin Deep
Warm up (p.25)
1. Answers will vary.
2. Physical appearance doesn’t count as much
as someone’s personality and character.
3.Common approaches include cosmetics,
beauty treatments, and cosmetic surgery.
2 Unit 2
A.
Answers will vary.
B.
1.c
2.d
3.b
4.e
5.a
Reading Comprehension (p.29)
A.
1.spans
2.i. good-looking people make more
money
ii.they get called on more often in
class
iii.they are perceived as friendlier
3. Larger eyes, fuller lips, a smaller nose
and a smaller chin
4.cultures
5.c
6.a
7.Yes: beauty does not always conform
to a single uniform standard. //
beauty can be altered by all sorts of
expectations.
No: it is human nature to look for
certain (preferred) features // qualities
in a mate. (or any logical answers
related to the ideas in text)
B.
1.4,000
2.money
3. make more money
4. a preference
5.cultural
6.Peru
Vocabulary Practice (p.30)
A.
1.conform
2.fundamental
3.devote
4.alter
5.predominantly
6.notion
B.
1. uniform
2.genders
3.mat
4.subjective
Answer Key
2B Unmasking Skin
Before You Read (p.31)
A.
1.b
2.a
3.d
4.c
B.
1.b
2.d
3.a
4.c
Reading Comprehension (p.34)
A.
1.i. p r o t e c t s u s f r o m e x t r e m e s
of temperatures, damaging
sunlight, harmful chemicals, and
dangerous infections;
ii.keeps the brain in touch with the
outside world.
2. Our skin
3. changed completely
4.New Zealand — Positive: full facial
tattoos, called moko, are still used to
identify the wearer as a member of a
certain family (and to symbolize the
person’s achievements in life). (lines
45–48)
Japan — Negative: tattoos are still
strongly associated with criminals
(lines 53–54)
West Africa — Positive: scarring…
symbolizes that a male has matured
from a child into an adult. (lines 67–
70)
Australia — Positive
5.c
6.b
7. a. aware of
b. difficult to see
c. industrialized
B.
1.b
2.a
3.e
4.c
5.d
Vocabulary Practice (p.35)
A.
1.crucial
2.mature
3.denoted
4.bravery
5.leisure
6.permanent
7.fade
8.chemical
B.
1.criminal
2.leisurely
3.permanent
Explore More (p.36)
A.
1.eyebrows
2.lashes
3.mask
4.silicon
B.
1.notion
2.subjective
3.crucial
4.devote
5.conforms
6.predominantly
7.Chemicals
8.alter
9.uniform
10.permanent
Unit 3
Animals in Danger
Warm up (p.37)
1.Over 40,000 species appear on the World
Conservation Union’s list of endangered
plants and animals. Common examples are
the big cats, pandas, wolves, some whales
and elephants.
2.Habitats become changed by human
activities or by environmental factors.
3. Answers will vary.
3A Panda Protectors
Before You Read (p.38)
A.
1.C
2.D
3.B
4.A
Unit 3
3
Reading Explorer: Theme-based Anthology
B.
1. 2,500,000 U.S. dollars
2.They are high maintenance animals
and money must be sent to China.
Reading Comprehension (p.41)
A. 1.d
2.a.T
b.NG
c.F
d.T
3.b
4. boost (line 81)
5.c
6. Eliminating the need to raise pandas
in captivity.
7.a
8.c
B.
1.three
2. visits / visitors
3.expensive
4. few years / decade
5.population
Vocabulary Practice (p.42)
A.
1.restoration
2.dramatic
3.precious
4.accommodation
5.scarce
B.
1.b
2.b
3.b
4.a
5.a
3B Cats in Crisis
Before You Read (p.43)
A.
1.T
2.F
3.T
4.T
5.F
B.
Answers will vary.
Reading Comprehension (p.46)
A. 1. Protecting snow leopards: a, d, e
Killing snow leopards: b, c
2. a. close by
b.distinctive
4 Unit 3
3. The herders’ animals
4.d
5.a
6.The leopard had killed one or two
animals many times.
7.solve
8.They are earning money for the
community.
9.c
10.b
B.
1. Himalayan Homestays: b, c, d, f
2. Snow Leopard Enterprises: a and e
3. Both: g
Vocabulary Practice (p.47)
A.
1.reward
2.incentive
3.drag
4.reverse
5.enforce
6. landscape
3C Our Precious Animals
Before You Read (p.48)
A.
1.Chairperson of the school’s Nature
Club.
2.3 (join group, respect habitats, refuse
products made from threatened or
endangered species)
Reading Comprehension (p.49)
A.
1.d
2. Chinese white and pink dolphins
3.c
4. 1. Join a nature group and learn about
endangered animals.
2.Volunteer to protect them (by
helping in emergency situations).
3. Participate in tree-planting and
beach clean-up days.
5.Haven
6. They often end up in the sea.
7.may be challenging traditions or
avoiding some useful medicines.
8. By treating your animals well.
9.There are plenty of other delicious
foods and equally effective medicines.
Answer Key
10.May I ask you to recall the last time
you saw a wild animal in Hong Kong?
/ Incredible, right? So what can we all
do to keep Hong Kong a safe haven
for our animal guests and residents?
Explore More (p.50)
A.
1.predator
2.prey
3.jaws
4.branch
B. 1.scarcity
2.precious
3.incentive
4.reversal
5.drag
6.hesitate
7.landscape
8.estimated
9.restored
10.rewarded
C. 1. They are both predators with keen
senses of hearing, sight and smell.
2. Answers will vary.
Review 1
The Lost World
A. Across: 1.evolve
4.
data
9.
external
10.
mate
12.
enthusiasm
14.
subjective
16.notion
17.award
18.alter
19.permanent
Down: 1.enormous
2. fade
3. intense
5. fundamental
6.
attribute
7.
eliminate
8.
chemical
11.
crucial
13.
trend
15.
drag
B.Brazil
three million
tepuis
2,700
Angel Falls
Pemon
Poisonous frog
The Lost World
Biodiversity
Vocabulary Building 1 (p.56)
A.
1.species
2.endanger
3. extinct
4.ecosystem
5.vulnerable
6.habitat
B.
2.capability
3.disable
4.probability
5.stable
6.vulnerable
7.responsible
8. likeability
C.capable
probable
vulnerability
availability
stable
Unit 4
Violent Earth
Warm up (p.57)
1.
2.
3.
Some natural disasters such as tornadoes,
floods, and hurricanes are weatherrelated. However, this unit deals with
seismic natural disasters such as volcanic
eruptions, earthquakes and tsunamis.
Answers will vary.
Yes. Earthquakes in China and tsunami
in Japan.
Review 1
Unit 4
5
Reading Explorer: Theme-based Anthology
4A The Ring of Fire
Before You Read (p.58)
A.
B.
1.active
2.earthquake
3.eruption
4.evacuate
5.explosion
6.summit
7.scared
1. Mount Fuji in Japan and Popocatepeti
in Mexico
2. Answers will vary.
Reading Comprehension (p.61)
A. 1. Japan and Mexico
2.c
3.c
4. a. unpreventable / unavoidable
b.signs
5.Ash and smoke were seen coming
from the mountain.
6.c
7. People who live near El Popo
8. All; except “pray to their ancestors”
B.
Mount Fuji: c and g
El Popo: a,b and f
Both: d and e
Vocabulary Practice (p.62)
A.
1.ancestors
2.inevitable
3.disastrous
4.holy
5.abandon
6.dawn
B.
1.witnessed
2.displaced
3.expands
4.monitored
4B When the Earth Moves
Before You Read (p.63)
A.
1.T
2.T
3.F
4.F
6 Unit 4
B.
The author believes that in the future
earthquakes will be predictable.
Reading Comprehension (p.66)
A. 1.c
2.b
3.b
4. a. approximately (line 58)
b. preceding (line 70)
5. Koshun Yamaoka: b
Naoyuki Kato: c
A scientist in Parkfield: a
6. Yes: It appears from the research
being done all over the world that
earthquakes are not entirely random.
No: At present, no scientists have ever
accurately predicted any earthquakes.
(or any logical answers related to the
ideas in the text)
B.
a. f (62)
b. b (62–63)
c. e (69)
d. a (70–71)
e. d (74–78)
f. c (81–90)
Vocabulary Practice (p.67)
A.
1.drill
2. schedule, randomly
3.tracking
4.precise
5.preceding
6.zone
B.
1. laboratory
2.identical
3.detect
Explore More (p.68)
A.
It started in Sumatra, Indonesia. It
traveled to the east coast of Africa.
B.
1.displacing
2.witnesses
3.zone
4.disaster
5.monitor
6.detect
7.abandon
8.inevitably
Answer Key
C.
1. Answers will vary.
2. Answers will vary.
Unit 5
Islands and Beaches
Warm up (p. 69)
1. Answers will vary.
2. Some famous beaches include Bondi Beach
in Australia; Daytona Beach in Florida,
USA; Waikki Beach in Hawaii; and the
beaches of Phuket in Thailand.
3.Islands, especially isolated and exotic
ones, provide a place with a slower pace
and unspoiled nature. Their romantic
atmosphere makes them perfect for
honeymooners.
5A The Best of Brazil
Before You Read (p.70)
A.
Answers will vary but should pertain to
the beaches in the photographs.
B.
1. A travel writer researching beaches.
2.A n s w e r s m ay b e r e l a t e d t o t h e
answers to A.
Reading Comprehension (p.73)
A.
1. (travel writer) Stanley Steward
2.Six
3.The beach is a way of thinking and
living.
4.a
5.Prainha’s beach: a and c
The beach at Maceió: b
6.d
7.c
8. a prison, a national park
9. It has the perfect balance of sand, sea
and sky. The water is pale blue and
warm. The sand is the color of honey.
And there is that hint of wildness the
writer’s seeking.
B.
5 Praia do Leão b
1 Copacabana a, e
4 Maceió d
2 Prainha f
3 Jericoacoara c
Vocabulary Practice (p.74)
A.
1.isolated
2.ultimate
3.eager
4.pursuit
5.destination
B.
1.prohibited
2.spoiled
3.rank
4.diverse
5.magnificence
5B Island Explorations
Before You Read (p.75)
A.
1.C
2.D
3.B
4.A
B. 1.Iceland
2.a.310,000
b.100,000
c.1,000
d. 4°C or 40°F
e.22
Reading Comprehension (p.78)
A.
B.
1.c
2.b
3. adventure trips organizer
4.Skiing and Relax in steaming hot
water
5.c
6. The Mid-Atlantic fault that is pulling
the island apart.
Labeling from top to left to bottom right:
b (Thingvellir), d (Reykjavik), f (Blue
Lagoon), c (Gullfoss), e (Vik), and a (caves
near the Vatnajokull glacier).
Vocabulary Practice (p.79)
A.
1.vast
2.converted
3.vehicle
4.architectural
5.visible
Unit 5
7
Reading Explorer: Theme-based Anthology
B.
a.cure
b.monster
c.mild
d. tension
e.migrate
5C The Tourists Fly in to Play
Before You Read (p.80)
A.
1. Hong Kong (Mai Po / Shek O / Po Toi /
Deep Bay)
2.Birds
Reading Comprehension (p.81)
A. 1.a
2. 1. Wade around Mai Po
2. Eat some Red Pargo
3.Black-naped Tern: Black shoes and
Sings a beautiful song
Black-headed Gull: Very loud and
Fearless
4.They are compared to a “black net”
because there are many of them and
the birds are huge.
5. the leopard of the sky
6.d
7.c
8.a
9. Line 37 (But an alert is raised)
10.Flapping feather (line 42) / frantic
flappers (line 48)
Explore More (p.82)
A.
As sea levels rise with global warming,
the low islands may be below the surface
of the water.
B.
1.isolated
2.vast
3.diversity
4.destination
5.tensions
6.visible
7.ultimately
8.pursuit
9.eager
C.
1.Some atolls are less than 5 meters
high. Whether they can be saved
depends on how much sea levels rise.
2. Answers will vary.
8 Unit 6
Unit 6
Ancient Mysteries
Warm up (p.83)
1. Answers will vary, but for more information
see http://science.nationalgeographic.com/
science/archaelogy
2. Answers will vary, but for more information
see http://science.nationalgeographic.com/
science/archaelogy
3. Answers will vary, but for more information
see http://science.nationalgeographic.com/
science/archaelogy
6A Silent Stones
Before You Read (p.84)
A.
1.associate
2.puzzles
3.artifact
4.legend
5. Evidence
B.
An astronomical calendar
A cemetery
A place where sick people were cured
Reading Comprehension (p.87)
A.
1.world
2.b
3.Parker Pearson refers to the Malagasy
culture to explain his theory that
Durrington is the domain of the living
and Stonehenge is a place of the
dead.
4.c
5.c
6.a.deposited
b. avenue
7.d
8.They believe that Stonehenge may
have been a center for health and
healing.
9. mystery / secrets and purpose / origin
B.
1.F
2.T
Answer Key
conflict with Homo sapiens sapiens
( m o d e r n h u m a n s ) a n d vo l c a n i c
eruption.
3.F
4.F
5.T
Vocabulary Practice (p.88)
Vocabulary Practice (p.93)
A.
1.domain
2.transport
3.deposit
4.graves
B.
1.trace
2.definitely
3.motive
4.cite
5.inspired
A.
1.unique
2. cousins
3.abnormally
4.phenomenon
5.inspection
6.contrary
B.
1.shrinking
2.adapt
3.astonishing
4. minimized
6B The Lost Cave
Before You Read (p.89)
A. 1.human
Homo habilis, Homo erectus, Homo
2.
sapiens and Homo floresiensis
3.The adults were much smaller than
either modern humans or an earlier
form (Homo erectus). The skeletal
material was found with stone tools
and the remains of an extinct relative
of elephants.
Homo Floresiensis
B.1.
2. Flores, Indonesia
3. They were very small.
Explore More (p.94)
A.
Answers will vary.
B.
C.
1. astonished
2.graves
3.phenomenon
4.deposits
5.inspecting
6.unique
7.inspired
8.Contrary
9.cousin
10.definitive
1. Answers will vary.
2. Answers will vary.
Reading Comprehension (p.92)
A. 1.a.T
b.F
c.NG
2.c
3. Homo erectus
4.Scientists believed that the Homo
erectus may have designed and sailed
boats.
5.a
B.
1. Flores, Indonesia
2. 95,000 to 13,000 years ago
3. short (about one meter); forehead and
jaw similar to Homo erectus
4.several theories regarding resources,
no selection for larger size
5. tool making, hunting
6. Not known, but theories include
Review 2
The Serengeti
A. Across:
Down:
1.vehicle
5.
pursuit
7.
tension
8.
cite
10.
spoiled
13.mild
15. magnificent
16.
drill
17.
deposit
19.
expand
20.
eager
2.inevitable
3.
vast
4.
prohibited
Review 2
9
Reading Explorer: Theme-based Anthology
6.
ultimate
9.
monitor
10.
schedule
11.
domain
12.
precise
14.
dawn
18.
rank
B.Conservation
Tanzania
1.5 million
zebras
April
Maasai
Olduval Gorge
Leakey
handyman
Earth in Motion
Vocabulary Building 2 (p.100)
A.
B.
10
1.heated
2.pressure
3.rise
4.cracks
5.layers
6.spread
7.formed
8.dives
1.Take
2.Take
3.Take
4.Take
5.break
6.break
7.take
8.take
9.Take
10.Take
11.Take
12.take
13.take
14.break
15.take
16.take
17.take
18.break
19.take
20.take
21.break
22.break
23.break
24.break
25.break
Unit 7
a.2
b.21
c.12
d.25
e.13
Unit 7
Global Addictions
Warm up (p.101)
1.Examples: caffeine, nicotine, alcohol,
gambling, and computer games.
2.Addictions to work and exercise are OK if
they are not excessive.
3. Answers will vary.
7A The World’s Favorite Drug
Before You Read (p.102)
A.
B.
2. 25 mg
3. 50 mg
4. 80 mg
5. 200 mg
6. 57 mg
7. 294 mg
8. 130 mg
Answers will vary.
Reading Comprehension (p.105)
A. 1.b
2. losing sleep
3.a.T
b.F
c.NG
4.enough
5.b
6.a
7.For: The writer writes, “Caffeine’s
behavioral effects are real, but more
often, mild”. (or any logical answers
related to the ideas in the text)
B.
1. Lose sleep
2. Counters physical fatigue
3.E a s e s p a i n by r e d u c i n g m u s c l e
inflammation
4.Creates headaches / causes physical
dependence
5. Fights illness including cancer
Answer Key
Vocabulary Practice (p.106)
A.
1.contradictory
2.depend
3.awakened
4.furthermore
5.abusing
6.severe
7.exhibits
8.fluctuating
B.
1.a
2.b
3.b
4.b
5.b
2. substitute
3.equivalent
4.utilize
5.dispose
B.
1.a
2.b
3. a
7C Is Nuclear the Best
Alternative?
Before You Read (p.112)
A.
1.Two
2.Two
7B Addicted to Fossil Fuels?
Reading Comprehension (p.113)
Before You Read (p.107)
A. 1.a.Safe
b.Unsafe
c.Safe
d.Safe
2. In the wake of
3.They were exposed to the equivalent
of a thousandth of the amount of
radiation utilized in a s tandard
radiotherapy course.
4.a.adverse
b.exaggerated
c.standard
5. Supporters of nuclear energy
6.a.T
b.F
c.NG
7. a town with no inhabitants
8.a
A.
B.
1.Footwear, toys, garden tools, storage
containers.
2.For electricity, heat, and the means of
powering transport.
1. Solar, wind and nuclear.
2.Nuclear.
Reading Comprehension (p.110)
A. 1.b
2. cost, weather, darkness
3.a.ideal
b.advocates
4.c
5. Wind power / Wind energy
6.The turbines / wind towers would
destroy the high-quality landscape.
7.The turbines don’t work well if there
is no wind or too much wind. The
turbines are noisy and ugly.
8.d
9.Yes: If combinations of these sources
are used, along with other power
sources.
No: Each source alone has its
shortcomings.
10.d
B.
Nuclear: d
Wind: a, f, g
Solar: b
All: c
Explore More (p.114)
A.
1.d
2.a
3.c
4.b
B.
1.utilize
2.substitute
3.finite
4.dependable
5.advocate
6.equivalent
7.capacity
Vocabulary Practice (p.111)
A.
1.finite
Unit 7
11
Reading Explorer: Theme-based Anthology
C.
8.guarantee
9.fluctuating
10.Furthermore
1. Answers will vary.
2. Answers will vary.
Unit 8
Legendary Voyages
1405: Zheng He departs on 1st voyage,
lands in Vietnam
1422: End of Zheng He’s 6th voyage,
new emperor comes to power
with change in policy
1431: Final voyage to Africa’s East
Coast, pilgrimage to Mecca
1433: O n r e t u r n voya g e t o C h i n a ,
Zheng He dies
Vocabulary Practice (p.120)
1.Answers will vary but might include
voyages of Ibu Battuta, Leif Erikson, Marco
Polo, Magellan, and Columbus.
2. Answers will vary.
3.Some possibilities are voyages under the
poles and in space.
A.
8A Treasure Fleet
8B Arabian Tales
Before You Read (p.116)
Before You Read (p.121)
A.
1.armada
2.ports
3. trading fleets
4.admiral
A.
B.
B.
A l l ; e x c e p t “ D i d Z h e n g H e r e a ch
Americal?”
Warm up (p.115)
Reading Comprehension (p.119)
A.
1.Sailors, government officials, doctors,
cooks, merchants, and interpreters.
2.Seven
3.c
4.a.True
b.False
c.NG
5. 5, 4, 6, 1, 2, 3
6.c
7.d
8.The new emperor of China wanted
to terminate all foreign exploration
(in 1422).
9. legacy, engagement
B.
12
1371: Ma He was born
1402: Ma He renamed Zheng He and
given job as Admiral
Unit 8
1.fascinated
2.via
3.subsequently
4.accumulated
5.departed
6.accompanied
7.terminated
8.coincided
Answers will vary.
1.An explorer, recreate Sindbad’s
voyages
2. By boat, 9,656km
3. All place names.
Reading Comprehension (p.124)
A. 1. On behalf of: representing
Comprised of: made up of
2.c
3. Serendib (another name of Sri Lanka)
4. Sindbad was carried to the valley by a
giant bird.
5.b
6.Sindbad’s crew: a
Severin’s crew: b, c
7. Sad: the great adventure is ending.
Happy: Omani people’s generosity
and the determination of his crew
made the voyage a reality.
B.
Sindbad: c, e, f
Severin: a
Both: b, d, g
Answer Key
Vocabulary Practice (p.125)
A.
B.
5, 4, 2, 1, 3
1.tale
2.crew
3.comprised
4.struggled
5.violent
6.crew
7.generously
8.accelerate
9.brief
Explore More (p.126)
A.
People make journeys to religious
places or to places that have special
significance for them.
B.
1.comprises
2.subsequently
3.via
4.accumulation
5.commanded
6.tale
7.struggle
8.brief
9.depart
C.
1. Answers will vary.
2. Answers will vary.
Unit 9
Stories of Survival
Warm up (p.127)
1.Answers will vary, but some types of lifethreatening situations include natural
disasters such as storms or earthquakes,
accidents and incidents of violence.
2. Answers will vary.
3. Survival may depend on luck, preparedness,
or determination.
2. In the Andes Mountains in Chile
3. To Santiago, Chile
4.T h e p l a n e c r a s h e s a n d s o m e
passengers survive.
B.
Although 29 people died in the airplane
crash, 16 managed to survive, including
2 who sought help.
Reading Comprehension (p.131)
A.
1. People who died in the plane crash.
2.b
3.b
4.d
5. The plane could not be found. (or any
logical answers related to the ideas in
the text)
6. 1, 6, 4, 5, 3, 2
7. There were a few cans on the ground,
and some farm animals in a field.
8.c
B.
Friday, not Tuesday
Uruguay, not Brazil
29, not 27
Two, not three
10, not 21
14, not 16
Vocabulary Practice (p.132)
A.
1.sustained
2.rational
3.steady
4. rescued
5.sew
6.urgent
7.volunteered
8.aircraft
9.tough
B.
1.rational
2.blanket
3.tough
4.steady
5.rescue
6.volunteer
9A An Ill-Fated Flight
9B A Photographer’s Quest
Before You Read (p.128)
Before You Read (p.133)
A.
A.
1. In an Afghan refugee camp in Pakistan
in December 1984.
2.S t e ve M c C u r r y, a p h o t o g ra p h e r
working for National Georgraphic.
1.The people include a sports team,
their friends, and relatives, and the
airplane crew.
Unit 9
13
Reading Explorer: Theme-based Anthology
3.Her photograph was on the cover of
National Geographic in June 1985.
B.
1. Her name and story.
2.Her photograph featuring her unique
eyes.
Reading Comprehension (p.136)
A. 1.d
2.decade
3.a.True
b.False
c.True
d.NG
4.b
5.d
6. He travels to Pakistan for work.
7. Gula had never seen it and she didn’t
know that it had become a famous
image.
National Geographic
8.
9. Steve McCurry: c
Sharbat Gula: a and b
Boyd Matson: d
B.
a.4
b.8
c.5
d.1
e.6
f.7
g.3
h.9
i.2
Vocabulary Practice (p.137)
A.
1.explosion
2.terror
3.mercy
4.border
5.wages
6.clinic
7.convinced
8.stable
9C Man Against Nature
Before You Read (p.138)
A.
14
1.True
2.True
3.False
Review 3
Reading Comprehension (p.139)
A.
1.Survival
2. directed, catastrophe / disaster
3. Through the grown Pi’s recollections.
4. Make friends with Richard Parker.
5.No, he doesn’t. He thinks it can be
easily mixed up with other Disney
films.
6.a.True
b.NG
c.False
7. Special effects—leaping whales,
swarms of flying fish, savage storms
and even a mysterious flesh-eating
island.
Explore More (p.140)
A.
1.b
2.d
3.a
4.c
B.
1.mercy
2.terror
3.endure
4.sustain
5.tough
6.convinced
7.mobilized
8.steady
9.rescue
10.tragedy
C.
1. Answers will vary.
2. Answers will vary.
Review 3
The Forbidden City
A. Across: 1.advocate
4.
tragedy
6.
via
7.
tough
8.
volunteer
12.
guarantee
14.
coincide
16.
abuse
18.
mobilize
19.
crew
20.
terror
Answer Key
Down: 1. accumulate
2.
convince
3. endure
4.
tale
5.
explode
9.
exhibit
10.
rescue
11.
temporary
13.
mercy
14.
clinic
15.depart
17.
sew
B.five
Nanjing
1925
paintings
Dragon throne
Super Harmony
Imperial Way
public square
Energy
Vocabulary Building 3 (p.146)
A.
1.utilized
2.civilizations
3.Industrial
4.urbanization
5.fossilization
6.global(ized)
7.organizations
8. realization
B.
1.overall
2. for instance
3.therefore
4.nevertheless
5.clearly
6. even though
7.later
8.furthermore
9.especially
10.so as
11.in conclusion
12.definitely
Unit 10
All in the Mind
Warm up (p.147)
1. Most people have few memories before age
3.
2.Love, hate, joy, or happiness, sadness or
sorrow, fear, guilt, surprise and excitement.
3.Apes such as chimps, monkeys, dolphins,
horses, parrots, dogs and cats.
10A A Mind of Your Own
Before You Read (p.148)
A.
1.self-awareness
2.emotional
3.recall
4.Perception
5.Behavior
B.
A:Who am I?
B:How do I remember?
C:Why do I have emotions?
D:Can I control how I feel?
Reading Comprehension (p.151)
A.
1.b
2.brain
3.They use powerful techniques to
visualize the sources of thought,
emotion, behavior and memory.
4.c
5.A stored pattern of connections
between neutrons in the brain.
6.The hippocampus that helps form
long-term memories is not fully
developed at this stage.
7.d
8.Davidson wants to find out whether
our mental activities and state of mind
can be controlled. (or any logical
answers related to the ideas in the
text)
9.c
B.
1.c
2.a
3.d
4.e
5.b
Unit 10
15
Reading Explorer: Theme-based Anthology
Vocabulary Practice (p.152)
Vocabulary Practice (p.157)
A.
1.presumption
2.transform
3.accomplish
4.underlying
5.visualize
6. reinforce
B.
1.flexible
2.presume
3. entity
4.welfare
A.
1.revealed
2.mastered
3.primitive
4.dismiss
5.acknowledging
6.pronounces
7.extraordinarily
B
1.master
2.simulate
3.reveal
4.humble
5.acknowledge
6.abstract
10B How Smart Are Animals?
Before You Read (p.153)
A.
B.
A n s w e r s w i l l v a r y, b u t c o m m o n
definition of intelligence is “highly
developed ability to think logically, to
understand the world around you, and to
learn things quickly”
Gray parrots (words, imitation, counting,
zero concept), sheep and elephants
(face recognition), chimpanzees (tool
making, use), octopuses (emotions), and
a border collie (linking vocabulary to
photographs)
Reading Comprehension (p.156)
A.
1.b
2.d
3. around, think, feel
4. They change color.
5.imitation
6.(1)A l e x c a n i m i t a t e a l m o s t 1 0 0
English words.
(2)Alex has a basic understanding of
the abstract concept of zero.
(3)He can understand the concepts of
same and different.
7.c
8. a
B.
16
1.tools
2.hunting
3.laugh
4.spit
5.2-year-old
6.photographs
Unit 11
Explore More (p.158)
A.
Answers will vary, but sharks have a
reputation for being predators.
B.
1.presume
2.welfare
3.humble
4.extraordinary
5.transforming
6.simulate
7.flexible
8.dismissed
9.revealed
10.mastered
11.acknowledge
C.
1. Answers will vary.
2. Answers will vary.
Unit 11
Art and Life
Warm up (p.159)
1. Answers will vary.
2. The reading covers this topic.
3. Answers will vary.
11A Color of Life
Before You Read (p.160)
A.
1.Answers will vary, but some colors
excite while others calm people.
Answer Key
2.Food would be less appealing and
some information would be harder to
recognize.
B.
Red signals dominance and accelerates
the heart rate.
Yellow is highly visible and can be a
stimulant or a caution signal.
Blue is neutral, calming, and inhibits
hunger.
Pink creates passivity.
Reading Comprehension (p.163)
A.
1.a
2. It makes the world more beautiful.
It conveys emotion and symbolize
power.
3.d
4.red
5.Red: Sports teams’ uniforms: “red
seems to be the color, across species,
that signals dominance”—giving
those dressed in red an advantage in
sporting events. (lines 40–43)
Pink: Walls in prisons: Men in prison
are reported to be more passive when
the walls are painted a specific shade
of pink. (lines 47–49)
Yellow: yellow has been found to
help children focus on their work and
do better in school (lines 68–69)
Blue: Sleeping pills // rooms
6.c
7.c
8. a. extracted from (line 10)
b. redden (line 32)
c. caution (line 65)
d. in control (line 78)
B.
a.yellow
b.blue
c.blue
d.red
e.blue
f.blue
Vocabulary Practice (p.164)
A.
1.highlights
2.bold
3.extracted
4.inhibitions
5.caution
11B Master of Color
Before You Read (p.165)
A.
1.principles
2.techniques
3.portrait
4.setting
5.masterpiece
B.
$80million – A Japanese businessman
Reading Comprehension (p.168)
A.
1.Th e y d i d n o t e n c o u ra g e h i m t o
become an artist, instead his father
thought he should be a salesclerk or
carpenter.
2.a.NG
b.True
c.NG
3.b
4.c
5.Viewers of Van Gogh’s paintings /
People in general
6.a
B. a. 1
b.5
c.2
d.3
e.4
Vocabulary Practice (p.169)
A.
1.innovative
2.resisted
3.classical
4.appreciated
5.wandering
B.
1.a
2.a
3.b
4.a
5.a
11C A World Full of Wondrous
Hues
Before You Read (p.170)
A.
1. Pau-la and Hung
2. Beijing and Hong Kong
Unit 11
17
Reading Explorer: Theme-based Anthology
Reading Comprehension (p.171)
A.
1.Language barrier and missing his
mom
2.They both migrated to a place with a
new culture.
3.An art therapist guides a person
through the creative process and
helps him see his problems and how
he is dealing with them.
4. a and b
5. Passive aggression
6.Gallery owner noticed his paintings
and his Mother and Ling are arriving
next week to stay
7.b
8. People who are sad or depressed
9.communicate, barrier, colorful,
exhibited
Explore More (p.172)
A.
1.Urban
2.distinctive
3.gallery
4.emerges
5.dimension
6.Graffiti
B.
C.
1.innovation
2.wander
3.bold
4.cautions
5.highlights
6.appreciate
7.extracts
8.classical
9.package
1. Answers will vary.
2. Answers will vary.
Unit 12
Medical Challenges
Warm up (p.173)
1.Answers will vary according to country,
but some problem diseases include Ebola,
AIDS, West Nile Virus, malaria, and bird flu.
18
Unit 12
2.Tra n s p l a n t s , s t e m c e l l r e s e a rch , a n d
nanotechnology.
3.Diseases spread rapidly with high death
rates when antibiotics are not efficient
against them.
12A Modern Medicine
Before You Read (p.174)
A.
B.
1.Deadly diseases such as cancer and
infectious viruses, sexually transmitted
diseases such as AIDS, general poor
health and fitness.
2.I d e n t i f y t h e h u m a n g e n o m e ,
successful transplants, medications.
Answers will vary.
Reading Comprehension (p.177)
A.
1.b
2.c
3.tiny particles into a person (to cure a
disease)
4.A technology that involves extremely
small particles.
5. a. when exposed to UV light
b. the body and programmed to bond
only to a certain type of cancer
cell.
c.can then use a camera and locate
the colored-particles and hence
find the cancer cells.
6.It will be possible to detect and
treat cancer at an early stage when
the cells are less resistant to drug
treatment.
7. Nanotechnology: c
Technology used now: b
Both: a
8.d
9.a
B.
1.F
2.F
3.T
4.T
5.T
6.F
Vocabulary Practice (p.178)
A.
1.priority
2.allocate
3.insert
Answer Key
Explore More (p.184)
4.multiply
5.Meanwhile
6.radical
7.bond
8.thoroughly
12B Virus Hunters
Before You Read (p.179)
A.
1. China in 2003
2.Asia
3. Central Asia, Europe, India and Japan
B.
Diseases that spread from animals to
humans
Reading Comprehension
A.
(p.182)
1.d
2. a. the horse’s trainer, an assistant, and
a veterinarian
b. the dead horse
3. True, False, NG, True
4.c
5.c
6. potentially (line 100)
7. To create vaccines for the diseases.
To make the communities more aware
of disease prevention and treatment
B.
1. animal habitats
2.travel
3.scratch
4. animal waste
5.eating
6.handshake
7.sneeze
Vocabulary Practice (p.183)
A.
1.root
2.transmitted
3.fever
4.victims
5.emergency
6.conservative
7.incidence
B.
1.b
2.a
3.a
4.b
5.b
A.
B.
Answers will vary.
1.poisonous
2.victims
3.fevers
4.roots
5.bond
6.priority
7.extensive
8.emergency
9.multiplying
C.
1. Answers will vary.
2. Answers will vary.
Review 4
Banks of the Seine
A. Across: 1.highlight
7.
resist
9.
victim
11.
passive
13.
master
15.bond
16.
allocate
17.
greed
18.
acknowledge
19.
root
20.
entity
Down: 2.inhibit
3.
laser
4.
transmit
5.
fever
6.
incidence
8.
appreciate
10.
thorough
12.
welfare
14.
swell
B. Orsay Museum
prison
Sainte-Chapelle
ice-cream
Statue of Liberty
Gustave
Review 4
19
Reading Explorer: Theme-based Anthology
Cultural Heritage
Vocabulary Building 4 (p.190)
A.
1.administrative
2.massive
3.distinctive
4.sensitive
5.conservative
6.extensive
7.primitive
8.innovative
B.
1.swell
2.give
3.speed
4.pick
5.welled
6.grew
7.set
8.took
9.turned
Unit 13
Words and Pictures
Warm up (p.191)
1. Answers will vary.
2. Answers will vary.
3.Pictures or photographs contain more
information than words can easily describe.
Verbal descriptions or explanations focus
on the main features more than on small
details.
13A A Writer’s Journey
Reading Comprehension (p.196)
A.
1.c
2. Niwo Island
3. b
4.a
5.c
6. They were warnings to travelers / They
were warnings of the dangers of the
passes.
B.
1. many famous bridges
2. too much concrete
3. run into the sea
4. peaceful shrine
Vocabulary Practice (p.197)
A.
1.commence
2.flee
3.navigate
4.embrace
5.resemble
B.
1.b
2.b
3.a
4.b
5.a
13B A Life in Pictures
Before You Read (p.198)
A.
Answers will vary.
B.
1.F
2.T
3.F
Reading Comprehension (p.202)
A.
Before You Read (p.192)
A.
1. snow, a calm, autumn
2. loss, sadness, loneliness
3. Answers will vary.
B.1. Oku no Hosomichi, Narrow Road to a
Far Province
2. Tokyo, Matsushima City, Otsu City
20
3.The Mogami River (the answer is in a
photo caption)
Unit 13
1.H e wa n t e d t o f i t i n a n d b e l i k e
everybody else in the U.S.A., so
learning Japanese never interested
him.
2.c
3.d
4. False, NG, True
5.improved
6.a
7.c
8.It’s a very natural picture. / The light is
behind him. / The light is incredible.
9. The frog sitting on the leaf.
10.c
Answer Key
B.
Yellow: b and e
Blue: a and f
Both: c and d
Vocabulary Practice (p.203)
A.
1.amateur
2.passion
3.route
4.concentrate
5.motivate
6.glare
7.ideal
8.anticipated
13C Passion or Pragmatism?
Before You Read (p.204)
A.
1.False
2.False
3.True
Reading Comprehension (p.205)
A.
1. Fire in the belly
2.It is the driving force—we don’t need
to be persuaded or tempted into doing
something as the passion does that for
us, it is the motivation. / It propels us
to reach our goals.
3.It is better to choose a career based
on pragmatism than passion.
4.When his band won first prize in an
amateur singing contest.
5.Atrophy
6.a.True
b.False
c.NG
Explore More (p.206)
A.
1. erupts, fumes
2. crater, glacier
B.
1.passion
2.commence
3.navigate
4.flee
5.route
6.ideal
7.obsessed
8.anticipate
9.concentration
C.
1. Answers will vary.
2. Answers will vary.
Unit 14
Love and Attraction
Warm up (p.207)
1.Science can identify how the brain and
hormones respond.
2.Physical appearance, personality and
accomplishments, etc.
3.Some animals display unusual colors or
behaviors such as dancing.
14A Aspects of Love
Before You Read (p.208)
A.
B.
Answers will vary.
1.c
2.d
3.b
4.a
Reading Comprehension (p.212)
A.
B.
1.c
2.Shameful
3.c
4.It’s very important that someone has
all the right qualities.
5.b
6.b
7. 3, 4, 1, 2
1.e
2.d
3.a
4.b
5.f
Vocabulary Practice (p.213)
A.
a.norm
b.defiance
c.affection
d.romance
e.recruit
B.
1.inherently
2.trigger
3.mutual
4.inclination
5.abundance
Unit 14
21
Reading Explorer: Theme-based Anthology
14B Animal Attraction
Explore More (p.220)
Before You Read (p.214)
A.
1.canopy
2.courtship
3.perch
4.elaborate
B.
1.dense
2.species
3.elaborate
4.affection
5.evoke
6.mutual
7.harsh
8.inclined
9.prominent
10.recruit
C.
1. Answers will vary.
2. Answers will vary.
A.
1.F
2.T
3.NG
4.T
5.F
B.
Answers will vary.
Reading Comprehension (p.218)
A.
B.
1.b
2.a
3. Advantage: Attract mates
Disadvantage: Make them more
noticeable to predators
4.c
5. He spreads his wings out like a dress.
6.d
7.c
8.European ladies’ hats / traditional
costumes of Papua New Guinean
tribesmen
9.It uses up the lands where the birds
once lived.
1.T
2.F
3.T
4.F
5.NG
Vocabulary Practice (p.219)
A.
1.species
2.ritual
3.bouncing
4.prominent
5.absurd
6.dense
7.harsh
8.evoked
B. 1. prominent
2.undergo
3.evoke
4.harsh
5.bounce
6.ritual
7.absurd
8.noble
22
Unit 15
Unit 15
Food and Health
Warm up (p.221)
1. Answers will vary.
2.Foods with toxins (e.g., blowfish) or foods
contaminated with bacteria are dangerous.
3.Using genetically modified foods or more
effective fertilizers and pesticides can
increase the supply of foods.
15A Food Safety
Before You Read (p.222)
A.
1.d
2.a
3.b
4.c
B.An E. coli incident in which a young girl
(Lauren Beth Rudoph) died.
Reading Comprehension (p.226)
A.
1.d
2.endured
3.c
4.No. Although some bacteria are
dangerous to humans, most of them
help with digestion, making vitamins,
shaping the immune system and
keeping us healthy.
Answer Key
5. Diseases / bacteria can spread very
easily as large numbers of animals
live in tight quarters.
6.b
7.a
8. The investigators
9. 3, 1, 2, 4
10.b
B.
1.c
2.d
3.e
4.a
5.b
Vocabulary Practice (p.227)
A.
a.compulsory
b.integral
c.nationwide
d.diligent
e.contamination
5. adequately tested
6. public relations exercise
Vocabulary Practice (p.233)
A.
1.genes
2.revolutionary
3.pests
4.conventional
5.diminished
6.skeptics
7.allergic
8.notwithstanding
B.
1.diminish
2.notwithstanding
3.allergic
4.revolution
5.conventional
6.pests
7.skeptics
8.nutrition
15B Genetic Engineering
15C A Dreadful Experience
Before You Read (p.228)
Before You Read (p.234)
A.
A.
B.
New varieties are resistant to insects and
herbicides, have more vitamins, and
grow faster. No risks are mentioned in
the information.
1. They are safe as far as we know.
2.They may harm the environment if
they are introduced before adequate
t e s t i n g . Th e y m ay a l s o r e q u i r e
alternatives pesticides.
3. Yes, by increasing crop quantities and
nutritional value.
Reading Comprehension (p.232)
A. 1.b
2.d
3. a. False
b.NG
c.True
4.d
5. I t d o e s n ’ t c o n t a i n m u c h b e t a c a r o t e n e . / B e t a - c a r o t e n e i s n ’t
converted into vitamin A when people
are malnourished.
B. 1.genetic
2.allergic
3.pesticide
4. slip by undiscovered
1.False
2.True
3.True
Reading Comprehension (p.235)
A. 1.Address
2. Wan Chai
3. The ground beef in the lasagna
4.a.3
b.2
c.5
d.1
e.4
5.c
6.He and his sisters missed school and
the family-run stationary business
couldn’t open in the lead up to
Chinese New Year—which is their
busiest time of the year—because his
parents were still recovering.
7.Getting infected with e-coli and
ending up in hospital.
8.a
Explore More (p.236)
A.
Answers will vary.
Unit 15
23
Reading Explorer: Theme-based Anthology
B.
1.battle
2.compulsory
3.diligently
4.notwithstanding
5.nationwide
6.diminishing
7.feasible
8.contaminated
C.
1. Answers will vary.
2. Answers will vary.
Review 5
Mystic Waters
A. Across: 1.absurd
2.
nationwide
6.
affection
11.
route
12.
obsessed
14.
passion
15.
gene
17.
ritual
18.
bounce
19.
species
20.
ferry
Down: 1.allergic
3.noble
4.dense
5.
digestion
6.
abundant
8.
compulsory
9.
navigate
10.
pioneer
13.
skeptic
15.
glare
16.
evoke
B. Sichuan Province
nine village valley
calcium carbonate
mineral composition
Tibetan
Qiang
mirror
Semo
visitors
carbon dioxide emissions
24
Review 5
Food and Diet
Vocabulary Building 5 (p.242)
A.
1.cultivated
2.Grains
3.staple
4.irrigate
5.yields
6.surplus
7.undernourished
B.
C.
D.
1.undergo
2.overseas
3.underground
4.undertaken
5.oversaw
6.undercover
7. overlooked
8.underlying
First Syllable: 2, 3, 5, 6, 9
Second Syllable: 1, 4, 7, 8
1. abundance
3.cohere
4.confidence
5.correspondence
6.emerge
7.inference
8.maintain
9.occur
10.pertain
11.reference
12.reverence
1.emergence
2.occurrence
3.abundance
4.assistance
5.reference
6.infer
E.
1.across
2.over
3. around to
4.along
5.away
6.at
7.back
8.by
F.
a.2
b.5
c.1
d.4
e.3
Answer Key
Design and Engineering
Warm up (p.245)
16B The Future of Fashion
1.Clothing fabric can be recycled or made
from disposable materials.
2.Some fabrics are treated to protect people
against sunburn or insect bites.
3. Tents, sails, parachutes, temporary buildings
Before You Read (p.252)
Unit 16
5.reproduce
6.vital
7.riddle
8.gradually
16A Design by Nature
A.
B.
Before You Read (p.246)
Reading Comprehension (p.256)
A.
1. draw inspiration
2.apply
3.fields
4. unimaginable complex
5. have the potential
6. concrete purpose
B. 1. The thorny devil lizard
2. Drinking water through its foot
3.Make a device to help people collect
water in the desert
A. 1.b
2.a
3.a.False
b.True
c.NG
4.B y d a y d r e a m i n g ( l i n e 3 ) a n d
observing nature (line 49)
5.d
6.b
Reading Comprehension (p.250)
A. 1.c
2.b
3.a
4.d
5. Andrew Parker: c
Ronald Fearing: b
Robert Cohen: d
Mark Cutkosky: a
6.c
7.Engineers find it hard to reproduce
nature since it is inherently and
unimaginably complex.
8. Positive / Hopeful / Optimistic
B. 1.T
2.F
3.T
4.F
5.F
Vocabulary Practice (p.251)
A.
1.Nonetheless
2.insight
3.colleague
4.device
B.
1.textiles
2.high-tech
3.fiber
4.Synthetic
Answers will vary.
1.e
2.a
3.d
4.c
5.b
Vocabulary Practice (p.257)
A.
1.thereby
2.fantasy
3.suspended
4.forthcoming
5.foresee
B.
1.b
2.a
3.a
4.b
5.a
Explore More (p.258)
A.
1.literally
2. obstacle course
3.contestants
B.
1.portable
2.fantasy
3.vital
4.thereby
5.devices
Unit 16
25
Reading Explorer: Theme-based Anthology
6.foresee
7.nonetheless
8.colleagues
C.
1. Answers will vary.
2.Participation is more important than
the sculpture and adults’ participation
is a good role model for children.
Unit 17
Human Journey
Warm up (p.259)
1. Answers will vary.
2.Burial sites with skeletal material, living
sites including artifacts such as stone tools
and pottery.
3.The Arctic and Subarctic, some Pacific
islands, the Amazon Basin, and Siberia are
remote places that people reached on foot
or by rafts and canoes.
17A The DNA Trail
Before You Read (p.260)
A.
1.Africa
2. South America
3.Asia
4. 30,000 to 40,000
B.
Mutations in DNA.
Reading Comprehension (p.264)
A.
B.
26
1.c
2.a
3.They compare mutations of DNA in
different populations.
4.c
5.a
6.The trip was full of dangers. / (Or
other reasonable answers)
7.The ancestors of today ’s Native
Americans
1.F
2.T
3.F
4.F
5.T
Unit 17
Vocabulary Practice (p.265)
A.
1.scattered
2.immense
3.buried
4.refined
5.bulk
6.vanished
7.conquered
8.proof
9.descendants
B.
1.mainland
2.proof
3.descendant
4.scattered
5.vanish
6.immense
7.conquer
8.refine
17B Fantastic Voyage
Before You Read (p.266)
A.
1.expand
2.anthropologists
3.feats
4.canoes
5.horizon
B.
1.c
2.a
3.b
Reading Comprehension (p.270)
A.
1.a
2.The winds blow steadily and in
p r e d i c t a b l e d i r e c t i o n s ove r t h e
ocean’s surface, thus helping the
explorers find ways to new islands or
back home.
3.d
4.b
5.a
6. 1, 4, 3, 2
7.a.T
b.F
c.NG
8.a
B. Lapita: a, d
Ancient Polynesians: b, e
Both: c, f
Answer Key
Vocabulary Practice (p.271)
A.
1.boundary
2.stretched
3.intervals
4.analogous
5.conceivable
6.stubborn
7.disrupts
17C The Real Treasures of Life
Before You Read (p.272)
A.
1. Kin Fai and Gai
2. Two coffins
Reading Comprehension (p.273)
A.
1.b
2.Trying to find Cheung Po Tsai ’s
treasure
3.a.T
b.NG
c.F
4. She was in love with him
5.a.3
b.2
c.4
d.1
6.Charismatic
7. The remains of Cheung’s parents.
8. The coffins / tombs
9.d
Explore More (p.274)
A.
B.
Thousands of miles using sails that catch
the wind.
1.immense
2.outdo
3.stubborn
4.disrupted
5.intact
6.proof
7.interval
8.conquer
C.
1. Answers will vary, but the Mata Rangi
III voyage was not successful.
2. Answers will vary, but the Mata Rangi
III voyage was not successful.
Unit 18
Conservation Challenges
Warm up (p.275)
1. Answers will vary, but some possibilities are
hard-to-reach places in Africa and South
America.
2.Climate change, infringement on natural
areas for agricultural land or forestry,
population pressure.
3.Declare fragile areas as protected zones,
enforce laws against poaching, list areas as
UNESCO World Heritage sites.
18A Disappearing Forests
Before You Read (p.276)
A.
1.b
2.a
3.c
4.b
B.
S i s t e r D o r o t hy S t a n g wa s s h o t by
gunmen.
Reading Comprehension (p.280)
A.
1.b
2.c
3. To protect settlers’ claims.
4.People who create and use false land
titles.
5. destroys / ruins
6.c
7.d
B.
Arguments for:
1.property
2.slave
3. agricultural chemicals
Arguments against:
1. in harmony with
2. Golden Chainsaw
3. exaggerated issue
Vocabulary Practice (p.281)
A.
1.devastating
2.confront
3.founded
4.supplemented
5.secluded
6.authentic
Unit 18
27
Reading Explorer: Theme-based Anthology
7.harmony
8.adjacent
B.
1.harmony
2.authentic
3.found
4.fraud
5.supplement
6.adjacent
7.secluded
8.taunt
9.confront
4.collapsed
5.chaos
6.evade
7.abolish
8.compiled
Explore More (p.288)
A.
a.3
b.1
c.5
d.4
e.2
Reading Comprehension (p.286)
B.
1.compiled
2.devastated
3.authentically
4.secluded
5.harmony
6.founded
7.instinct
8.adjacent
9. confront
A.
C.
1. Answers will vary.
2. Answers will vary.
18B Animal Protectors
Before You Read (p.282)
A.
1.A
2.C
3.B
B.
1, 2, 1, 2
1.a
2.The female elephant and her two
babies
3.a
4. protect / safeguard
5.a.F
b.NG
c.T
6.c
7.c
8.The sudden sharp rise in the price of
ivory and the widespread availability
of automatic weapons
9.d
10.Teacher and elephant researcher
B.
a.5
b.2
c.6
d.4
e.1
f.3
Vocabulary Practice (p.287)
A.
28
1.withdraw
2.weapons
3.agitated
Review 6
Review 6
Island of Statues
A. Across: 1.proof
3.
agitation
5.
outdo
7.
revered
9.
mainland
12.
intact
13.
confront
16.
evade
18.
rigid
19.
genuine
20.
colleague
Down:
1.portable
2.
forthcoming
4.
immense
6.
taunt
8.
vital
10.
authentic
Answer Key
11.
device
13.
compile
14.
riddle
15.
thereby
17.
bulk
19.
gap
B. South Pacific
Polynesia
volcano
Easter Sunday 1722
2,000
figures or statues
1,200
400–500
Jared Diamond
environmental disaster
E.
1.wear
2.carry
3.figure
4.rule
5.drowned
6.freak
7.maxed
8.stamp
F.
a.3
b.2
c.4
d.1
Population
Vocabulary Building 6 (p.294)
A.
1.Demographers
2.population
3.census
4.statistics
5.pensions
6.migrant
7.refugees
8.populous
B.
1.Calligraphy
2.telegraph
3.phonograph
4.seismograph
5.autograph
6.bibliography
7.Demography
8.biography
C.
1.erect
2.breed
3.duplicate
4.revoked
5.initiate
6.erased
D.
1.Corrupt
2.abrupt
3.interrupted
4.erupting
5.ruptured
6.bankrupt
Review 6
29