第1单元答案
开头
Answer Key
1. Answers will vary. Possibilities include:
Romans, Maya, Aztecs, Incans.
2. Pssibilities include: natural disasters,
depletion of natural resources, war with other
civilizations.3. Answers will vary,
1A
Answer Key
Before You Read
A.1. Answers will vary. Possbilities include:
archeologist, geologist, cave explorer.
2. Answers will vary. Possibilties include: religion,
culture, mineral wealth, fresh water, The light
shining down may signify time, God, seasons.
B.1. ancient Mayan city (line 2); 2. the God of
life-giving rain and ruler of cenotes and caves
(ine 42 and line 66); 3. a combination of corn,
beans, and squash that constitutes their basic
source of protein (ines 84 86); 4. a Maya holy
man (lines 123-124)
Reading Comprehension
1. b (lines 3-7);2. a (ines 25-34); 3. c (line 17);
4.a (lines 64-73); 5. C (lines 86 -87); 6. d (lines
94-101);7. d
Reading Skill
A.1.b;2.d;3.c4.a
B.1.NG;2.F;3.F;4.T;5. NG;6.F
Vocabulary Practice
A.1. flourished; 2. grueling; 3. inspected;
4. penetrate; 5. demise
B.1.b;2.a;3.b;4.a;5. b
1B
Answer Key
Before You Read
A. Jayavarman . Angkor, Theravada Buddhism,
1400s
B. Answers will vary. Possible answers include:
foreign invaders, changes in religion, natural
disasters.
Reading Comprehension
1.a;2.c3.c:4.d;5. d;6. d (ines 137-143);
7.b
Reading kill
A.1.e;2.b;3.d;4.c5.a
B. Supporting evidence for each argument in
part A includes: 1. Historians deduced that
Angkor had been looted (lines 24 -27); 2. No
extra evidence given; 3. Economic reasons (lines
70-76); 4. No extra evidence given; 5. Europe
experienced the Little lce Age (lines 140-143).
Vocabulary Practice
A.1. dispersing; 2. channels; 3. scarce;
4. internal; 5. mechanism
B.1.a;2.b;3.b;4.b;5.a
结尾
Answer Key
Before You Watch
A.1.T;2.F:3.F:4.T;5.T
B. a. ingenious; b. intrinsic, C. sophisticated;
d. pieced together, e. fled
While You Watch
A. The following should be checked: the size of
Angkor, when the Khmer fled Angkor, how long
it took to build Angkor Wat; attacks on Angkor,
a visit by a French naturlist.
B.1. When Henn Mouhot visited the ruins of
Angkor, he drew pictures of the city; 2. Angkor
Wat served as a shrine, an observatory, and a
funerary temple,; 3. After the Chams attacked,
Angkor Wat was rebuilt and the king built
Angkor Thom.; 4. A huge battle in the 15th
century almost destroyed the Khmer people.
After You Watch
1. and 2. Answers will vary.
第2单元答案
开头
Answer Key
1. Answers will vary, Possibilities include:
telescopes, space probes, satellites. space
exploration. 2. Answers will vary. Possibilities
include: calendars, navigation. physics.
3. Answers will vary. He probably meant that if
people are unsure about something, they will try
to invent something to find the answer.
2A
Answer Key
Before You Read
A.1. T;2.F;3. T:4.F
B. Answers will vary. Possibilities include: a.
what telescopes do/looking at the sky; b. the
best place for a telescope/Atacama Desert;
C. putting the array together, d. what we've
learned from ALMA/other galaxies
Reading Comprehension
1.b (line 15):2. b;3. a (lines 78- 80;4.d;5. b;
6.d;7. a (lines 138-149)
Reading Skill
A.1.b;2.b;3.a
B.1.b;2.a;3.b;4.a;5.b:6.b;7.b;8. b
Vocabulary Practice
A.1. positioned; 2. set up; 3. operation; 4. emit;
5. distort
B.1.b;2.a;3.a;4.b:5. a
2B
Answer Key
Before You Read
A.1. They know its size, mass, and distance
from its sun; It's the largest exoplanet they
have found; 2. Answers will vary. An exoplanet
is a planet orbiting a star other than the sun.
One reason for hunting for them is that some
may have conditions suitable for life. The main
challenges involve the distances these planets
are from the Earth, and their relatively small size
and brightness compared to stars.
B.1. the first and third questions; 2. Answers
will vary.
Reading Comprehension
1.c;2.d;3.a (lines7-8);4. C;
5. b (lines 104-110); 6. a (lines 114-120); 7. d
Reading Skill
A.1.e;2.c;3.h;4.a:5.f;6. g:7.b;8.d
Vocabulary Practice
A.1. composition; 2. To date; 3. exerted;
4. conspicuous; 5. Hence; 6. commented;
7. scope
B.1. nucleus; 2. scope; 3. oriented; 4. comment;
5. exert; 6. steadily, 7. to date; 8. conspicuous;
9. composition; 10. hence
结尾
Answer Key
Before You Watch
1. The comet was last here in 1986, so only those
who were alive then and old enough could have
seenit. 2. It will next be seen in 2061 or 2062.
3. People see "shooting stars" or comets/asteroids
fairly frequently. It's easier if you have a telescope
and if you know when and where one is expected.
While You Watch
A.1. how the early explorers used the stars
to navigate; 2, advantages of Mauna Kea
as a viewing point; 3, the comet's age and
frequency of appearance; 4, viewing the comet
with telescopes; 5, viewing the comet using
spacecraft
B.1. volcano; 2. pollution; 3. winds; 4. tail;
5. camera; 6. temperatures; 7. spacecraft;
8. dust
After You Watch
Answers will vary.
第3单元答案
开头
Answer Key
1. Answers will vary. Possibilities include: heart
disease, cancer, stroke, diabetes, HIV/AIDS.
2. Answers will vary. Possibilties include: the
body's reaction to allergens such as dust, pollen,
seafood, peanuts. 3. Answers will vary. Students
will probably mention diseases that have
environmental components such as cancer, lung
disease, heart disease, diabetes, and asthma.
3A
Answer Key
Before You Read
A. 1. Tobacco smoking, physical activity, and
poor diet: 2. Answers may vary. Possible answer:
High level of cholesterol creates plaque, which
in turn causes atherosclerosis, or the narrowing
of arteries, and this leads to a heart attack.
B.b
Reading Comprehension
1. a;2.a (lines45- -48);3. C;4.d (line 75);5. c
(lines 79-83);6. a (lines 103-105);7. b
Reading Skill
1. almost 100%，line 48; 2. genetic susceptibility
to disease by adding up the number of risky
variables, lines 68-70; 3. his wife overheard a
doctor describing a study, lines 18-21; 4. How
much blood is flowing through an artery, lines
88- 92; 5. DNA samples from patients who enter
hospitals with atherosclerosis, lines 54- 55;
6. Cleveland Clinic, lines 23-26; 7. his friend had
nitroglycerin, line 9; 8. elevated cholesterol, lines
96-98
Vocabulary Practice
A.1. submitting; 2. impeding; 3. volume;
4. proportions; 5. compounded; 6. stres;
7. exacerbate; 8. susceptible
B.1. impede; 2. stress; 3. mutate; 4. volume;
5. proportion; 6. susceptible; 7. principal;
8. submit
3B
Answer Key
Before You Read
A.1. Pollen causes hay fever llergies, producing
sneezing; watery, red eyes; and often difculty
breathing. 2. Answers will vary. Possibilities
include: dust, mold, nuts, seafood, poison ivy.
They may get hives and have trouble breathing.
B.1.1,b;2.24,a;3.52, e:4. 122.c
Reading Comprehension
1.d;2. c3.c lines 40- 42):4. a
5. a (lines 59-60); 6. b (lines 88-91); 7.c
Reading Skill
1. asthmatic; 2. rapid; 3. diet; 4. processed;
5. vegetables, antioxidants, minerals; 6. bacteria;
7. overuse; 8. diesel; 9. pollutants; 10. Hygiene;
11. dirt/microbes; 12. insulation; 13. mold and
dust
Vocabulary Practice
A.1. miserable; 2. culprit; 3. confer; 4. suppress;
5. tolerates; 6. legislation; 7. federal; 8. set off
B.1. miserable; 2. components; 3. suppressed;
4. registers; 5. confer
结尾
Answer Key
Before You Watch
A. Answers will vary for all items.
B. Answers may vary. Possibilities include:
Malaria is a disease. Its symptoms include
fever, chills, and flu-like ilness. It is caused by a
parasite carried by a mosquito. Malaria is very
common in most parts of Africa and in some
parts of Asia, South America, and
Central America.
C. Answers will vary.
While You Watch
A.5,3.1.6.2.4
B.1.b;2.b;3.c;4.b;5.c
After You Watch
1. Answers will vary. Possibities include: When
dried, it klls the mosquito that carries the
ilness. 2. Answers will vary. Possibilities include:
Farmers earn money. They can then spend more
on other things. The shippers also make money.
第4单元答案
开头
Answer Key
1. Answers will vary. 2. Answers will vary.
Possibilities include: coastal cities, New York,
Miami, Venice, the Netherlands, India, Vietnam.
3. Answers will vary. Possblities include: the
Philppines, New York, New Orleans, China,
Argentina, Brazil, Mumbai, Kolkata, Jakarta,
Guangzhou, Ho Chi Minh City.
4A
Answer Key
Before You Read
A.1.c;2.c;3.a
B.b
Reading Comprehension
1. C;2.c 3.a (lines 16- 20);4. b (line 47);5. b
(lines 63-67);6. a;7. a
Reading Skill
1.L;2.F:3.F;4.L;5.L;6.F;7.F;8.F;9.L;
10.L;11.F;12. F
Vocabulary Practice
A.1. framed; 2. sentimental; 3. inflicts;
4. maximize; 5. elevated; 6. impose;
7. implemented; 8. inadequate; 9. So-called
B.1. inflict; 2. maximize; 3. inadequate;
4. framed; 5. sentimental; 6. complement;
7. elevated; 8. implement; 9. so-called; 10. impose
4B
Answer Key
Before You Read
A.1. Answers will vary. Possibilities include:
rising sea levels, more severe weather, threats
to plants and animals. 2. Answers will vary.
Possibilities include: restrict use of fossil fuels,
greater use of alternative sources of energy.
B. Predictions will vary. Actual answers:
1. A storm surge caused by Hurricane Sandy
in New York in 2012.2. Coastal cities e.g.
New York, London, Rotterdam) face a greater
frequency of devastating storms because of
climate change and need to be protected or they
won't survive. 3. A devastating storm in 1953
forced the Netherlands to take drastic action to
protect their coasts, including the Delta Works
(dikes and barriers) and Rotterdam's Floating
Paviin (a model of floating architecture).
4. Even if we take steps to protect these cities,
rising seas may force people to move away from
endangered coastline.
Reading Comprehension
1.a;2.d (lines 6-9);3. d; 4. a (page 86);5. b
(lines 132-135); 6. b (page 88); 7.c
Reading Skill
B.1. The author thinks the ssue is very
important; dramatially, drastically, fleeing;
2. The other doesn't provide exact figures for
numbers and dates, so we don't know how
accurate it is. Also, no source is given. 3. Hal
Wanless is chair of the University of Miami's
Department of Geological Science, and Klaus
Jacob is a Columbia University geophysicist, so
they are both good sources of information.
4. Answers will vary.
Vocabulary Practice
A.1. envision; 2. dire; 3. policy; 4. take for
granted; 5. withstand; 6. retreat; 7. ambitious;
8. barriers; 9, surges
B.1. comply; 2. retreat; 3. surge; 4. policy;
5. withstand; 6. ambitious; 7. envision
结尾
Answer Key
Before You Watch
A.1.a;2.b;3.a4.a
B.1. Answers may vary. Possiblities include:
fishermen, people who catch crabs.; 2. Answers
may vary. Possiblities include: loss of land, loss
of jobs, floods.
While You Watch
A. Smith Island is vulnerable to the ocean. Its
land is being eroded, and this is dificult for its
inhabitants. Rising seas may one day make the
island unfit to live on.
B.1.500; 2. one foot; 3. century; 4. building
barriers to slow erosion; 5. there will only be a
few high spots left
After You Watch
1.-3. Answers will vary. Crab catches could be
small due to increased water temperatures as a
result of global warming. which may disrupt the
crabs' habitat and ecosystem. It's possible the
rising sea level would have a similar effect.
第5单元答案
开头
Answer Key
1. Answers will vary. Possibilities include: oil,
coal, natural gas, nuclear, solar, wind.
2. Answers will vary. Possilities include:
Fossil fuels (oil, coal, gas): Advantages:
Available technology: Disadvantages: Impact on
environment, limited supplies
Nuclear: Advantages: Potential large supply;
Disadvantages: Expensive technology. safety
Solar: Advantages: Clean and sustainable;
Disadvantages: Current technology is nefficient;
it's not always sunny
Wind: Advantages: Clean and sustainable;
Disadvantages: Some think turbines are
unsightly, not everywhere in the world has
strong enough winds
3. Answers will vary. Possiblities include: drive
less, walk and cycle more, recycle waste, buy
local.
5A
Answer Key
Before You Read
A.1. T,2. T:3. F (Kuwait; 4. F (Estonia)
B.1. Tracking and reducing carbon dioxide
output; 2. They could cut their output.
Reading Comprehension
1.b;2.c;3. b (lines 12-15); 4. d (ines 24- -28)
5.d (lines 85-88);6. a;7.d
Reading Skill
A.1.f:;2.c;3.d;4. b
B.1.a;2.g;3.e;4.h
Vocabulary Practice
A.1. threshold; 2. commonplace; 3. pioneered;
4. audit; 5. obstacles
B.1. utility; 2. commonplace, 3. appliances;
4. mode; 5. obstacles; 6. compact, commute
5B
Answer Key
Before You Read
A.1. China, U.S.. Germany, Spain, India;
2. Germany; 3. China; 4. Answers will vary.
B.1. the United States and Germany;
2. Nevada Solar One and its 182,000 mirrors,
and Freiburg's Solarsiedlung, a "solar settlement"
Reading Comprehension
1.c (lines 7-8); 2.d (lines 31-33);3. b;4.c;
5.c;6.cq7.a
Reading Skill
a. G (paragraph L); b. G (lines 28 -29); C. N;d. U
(lines 55 -58):e. N; f. U (lines 100-103);
g. G (lines 151-160); h. G (paragraph M);
i.U (lines 155-157); 1. B (paragraphs P and G);
k. U (lines 161-164); I. U (lines 169-176)
Vocabulary Practice
A.1. ingenious; 2. renewable; 3. yield;
4. circulation; 5. premium
B.1. manufacture; 2. deadline; 3. subtract;
4. premium; 5. panel; 6. offset; 7. circulate
结尾
Answer Key
Before You Watch
A.1.c;2.g:3.f;4.d;5.b;6.e;7.a !
B. Answers may vary. Possibilities include:
unplug appliances/electronics, get energy
efficient lightbulbs, insulate the house.
While You Watch
A. The following should be checked:a, d
B.1.c2.a;3.c4.b;5. b
After You Watch
1. Answers will vary. 2. Answers will vary.
Possibilities indlude: Use eco-friendly lightbulbs,
unplug appliances, seal doors and windows, use
solar panels.
3. Amory Lovins probably means that by taking
measures to combat climate change, we can
also save money.
第6单元答案
开头
Answer Key
1. Answers will vary. Possiblities include:
tiger, several kinds of rhino, mountain gorilla,
orangutan; disappearing habitats and poaching.
2. Answers will vary. 3. Answers will vary.
Possbilities include: koala, grizzly bear, condor,
bald eagle, bison.
6A
Answer Key
Before You Read
A.1. Answers will vary; 2. Answers will vary.
Possibilities include: overfishing, different
regulations in various countries, toxicity of
fish both wild-caught and farmed; 3. Answers
will vary. Possibilities incude: regulation/bans,
farming, protection of habitats
B. Answers will vary. Possibilities indude:
1. Bluefin tuna are large and powerful; 2. People
catch and tag the huge fish; 3. Where bluefin
tuna move around the world; 4. The possibility
that the tuna will become extinct
Reading Comprehension
1.c;2.d;3.b;4.a;5. d (lines 111-113);
6. a (lines 132-137); 7. a
Reading Skill
1.a;2.a;3.a;4.b;5.a;6.a;7.b;8.b;9. a;
10.b;11. b;12.a;13. b;14.b;15. a
Vocabulary Practice
A.1. startling; 2. hauled; 3. gear,
4. collaborate; 5. scholar,; 6. detrimental
B.1.a;2.b;3.a;4.b;5. b
6B
Answer Key
Before You Read
A.1. Answers will vary. Posibilities include:
captive breeding; 2. Answers will vary.
Possibilities include: popularity, size, familiarity
B.1. Cincinnati Zoo; 2. Bronx Zoo; 3. Miller Park
Zoo; 4. Bronx Zoo, Toledo Zoo; 5. San Diego
Zoo/Frozen Zoo; 6. San Diego Zoo
Reading Comprehension
1. c;2.d (lines 67-70):3. b; 4. a lines 101-108;
5. d; 6. c (lines 150-157);7. b (lines 172-175)
Reading Skill
A.1.a;2.b;3.b;4.a:5.c
B. Greek Root: 1. self, 2. earth; 3. write;
4. study of; 5. sound; 6. see; 7. distant
Latin Root: 1. sound/hear,; 2. speak; 3. carry;
4. feel; 5. write; 6. earth; 7. see
Vocabulary Practice
A.1. extinct; 2. shrinking; 3. struggling;
4. Imminent; 5. refuge; 6. oblivion; 7. captive;
B.1. imminent; 2. supplement; 3. captive;
4. state-of-the-art; 5. refuge; 6. Oblivion; 7. tide
结尾
Answer Key
Before You Watch
A.1.e;2.d;3.h;4.f;5.a;6.c,7.b;8. g
B. Answers may vary. Possibilities include:
1. To study their genomes/genetic information,
to preserve the animal's DNA (for doning.
research); 2. On ice, by freezing them
While You Watch
A.1.F;2.T:3.F;4. T:5. T
B.1. scientific; 2. frozen; 3. sequencing,
4. information; 5. collection; 6. liquid;
7. centralize; 8. request; 9. piece
After You Watch
Answers will vary. Possibilities incude:
1. Researchers can learn about neurobiology,
and they can learn how poisons work in
humans.2. Someone could misuse the
knowledge to create biological weapons. There
are also ethical issues associated with the
possiblity of preserving the DNA for dloning
purposes.
第7单元答案
开头
Answer Key
1. Answers will vary. Possibilities include:
Humans can walk upright, hold/use tools, they
have large brains, but they're not able to fly;
2. Answers will vary. Possbilities include: Laser
surgery to correct vision, cosmetic surgery, joint
replacement, pacemakers; 3. Answers will vary.
7A
Answer Key
Before You Read
A.1. Answers will vary. Possibilties include:
how it works, which parts of the brain do which
things, how individual brains differ from one
another, how brains with disorders or injuries
work differently; 2. Answers will vary. Possibilities
indude: help individuals who are paralyzed, have
brain damage, have certain diseases or disorders;
could also help prevent some of the diseases or
disorders; help identify people with problems;
could help society as a whole by helping humans
do things they can't do now
B. Answers will vary, Possibilities include:
1. How the writer participated in brain research/
scanning; 2. How researchers use technology to
look at the brain and see how it works; 3. How
the brain can interact with a machine, paralyzed
person using a machine to do things
Reading Comprehension
1. c (lines 17-20); 2. d; 3. b (lines 89 90);
4. a (lines 103-105);5. C; 6. d (lines 134-156);
7. d (page 146)
Reading Skill
A. is then used, are put in order, is built, is
revealed
B.1.a:2.a;3. b;4.a
Vocabulary Practice
A.1. organ; 2. forefront; 3. neural; 4. originate;
5. scrutinize
B.1.a;2.b;3.b;4.b:5. a
7B
Answer Key
Before You Read
A.1.d;2.c;3.a;4.b
B. Bionic body part: arm
Why she needs it: lost her arm in a car accident
Things she can do now: hold things, pick up big
things
Things she can't do yet: pick up small things,
have sensations
Reading Comprehension
1.a;2. b; 3. d (lines 49 53); 4. b (lines 54 -55);
5. b (lines 91-100);6. a;7.a
Reading Skill
1.F;2.0;3.F;4.F:5.O;6.O;7.F;8.0;9.0
Vocabulary Practice
A.1. reliability; 2. sensation; 3. intricate; 4.
embedded; 5. vibrations; 6. assign; 7. reasonable
B.1.a;2.b;3.b;4.a;5.b
结尾
Answer Key
Before You Watch
A.a.4;b.1:c.3;d.5;e.2
B. Answers may vary. Possbilities include:
1. Falling from height; bad weather; getting lost;
2. Less control, no sensation so hard to feel the
rock beneath.
While You Watch
A.1.a;2.b;3.c
B.1.F;2.O;3.F;4.F;5.0;6.。
After You Watch
1. Answers will vary. 2. Answers will vary.
Possbilties include: unfair advantage in sports
or other activities, against religious beliefs, issues
of lability/responsibilit;
3. Answers will vary.
第8单元答案
开头
Answer Key
1. Answers will vary. Possbilities inlude: Dating,
office politics, religion; 2. Answers will vary.
Possibilities include: Chimpanzees, goillas,
monkeys, elephants, dogs, dolphins; 3. Answers
will vary. Possibilities include: Insects sometimes
live in social groups and have dfferent jobs.
8A
Answer Key
Before You Read
A.1. a. bees; b. elephants; C. lions; d. fish
2. Answers will vary. Possible advantages
include: protection from predators, division
of labor, cooperation; Possible disadvantages
include: overcrowding, fighting over resources
B. Answers will vary. Possibilities include:
ants- -transportation and distribution systems;
bees- -running meetings, making decisions.
Reading Comprehension
1.b;2.a;3. c;4. b (lines 23- -24); 5.c (lines 69-
70);6. b;7. b (lines 34- -35 and lines 209 -210)
Reading Skill
1.a;2. d; 3. d; 4. b (paragraphs P and Q);5.c
Vocabulary Practice
A.1. securing; 2. trritory; 3. coded;
4. coherent; 5. aggregate; 6. criteria;
7. protocols
B.1. imitate; 2. coherent; 3. criteria; 4. index;
5. secure; 6. aggregate; 7. faculty; 8. teritry
8B
Answer Key
Before You Read
A.1.b;2.c;3.a
B. Answers will vary. The passage discusses the
first three and last item.
Reading Comprehension
1. b (lines 32-35); 2. d (lines 57-61);
3. a (lines 73-75); 4.c (lines 106-113); 5. b;
6. C; 7. b (lines 154-163)
Reading Skill
1.F (lines 3-14);2. T (lines 26 -28);
3. NG (lines 57- 66);4. T (lines 68 70);
5. NG (lines 88 98); 6. T (lines 128-132);
7. T (lines 132- 137);8. F (lines 169-172);
9. NG (lines 193-196); 10. F (lines 214-216);
11. T (lines 218-220); 12. T (lines 224-231)
Vocabulary Practice
A.1. exemplify; 2. solitary; 3. fatal; 4. fake;
5. organic; 6. persuade
B.1. fake; 2. anomaly; 3. fanatically; 4. solitary;
5. organic; 6. exemplify; 7. sterile; 8. consistent;
9. fatal; 10. persuade
结尾
Answer Key
Before You Watch
A. Answers will vary. Possbiltes include:
1. From Canada to Mexico and back, from
Idaho to California and back; 2. Because of
temperature and food availability; 3. Geese,
salmon, wildebeest.
B. Predictions may vary. Actual answers are:
1.300;2. 3,000;3. 200;4. 250;5.80; 6.50
While You Watch
A. See above
B.1. remote; 2. tolerate; 3. fatal; 4. population;
5. ilegal; 6. habitat; 7. consistent; 8. implement;
9. secure; 10. persuade
After You Watch
1. Answers will vary. 2. Answers will vary.
Possible natural spectacles include: the aurora
borealis, a solar eclipse, a sunset, a rainbow.
第9单元答案
开头
Answer Key
1. Answers will vary. 2. Answers will vary.
Possibilities include; Shakespeare, da Vinci,
Michelangelo, Einstein, Picasso, Kurasawa;
3. Answers will vary,
9A
Answer Key
Before You Read
A. Answers will vary. Possibilities include:
painter of the Mona Lisa and The Last Supper,
Michelangelo's rival, interested in flying.
B. Mona Lisa, Lady with an Ermine, Virgin of
the Rock, The Last Supper
Reading Comprehension
1.b (lines8- -9);2.c;3. d (line 72);
4.c (line 128);5. d (lines 178-180);6. a; 7.c
Reading Skill
1. near Vinci; 2.1469; 3. Milan; 4. Florence;
5.1513; 6. France/The Loire Valley, 1516
Vocabulary Practice
A.1. concurrently; 2. commissions; 3. arbitrary;
4. denied; 5. drafts; 6. preliminary;
7. implicit
B.1. preliminary; 2. academy; 3. parameter;
4. deny; 5. draft; 6. implicit; 7. concurrent;
8. arbitrary; 9. comission; 10. ideology
9B
Answer Key
Before You Read
A. Answers will vary.
B. Pssbilties include: different kinds of writing
systems, the history/evolution of writing.
Reading Comprehension
1.b (lines 12-13); 2. a; 3. d (lines 33-34);
4.c (lines 41-43);5. C; 6. a (line 107);
7.d (lines 150-158)
Reading Skill
Answers from top to bottom of table:
Sumerians began carving signs; 3,500 years
ago; Latin alphabet evolved from Greek.; 5th
century B.C.; 4th century B.C.; Chinese adopted
a standard writing system,; 2nd century A.D.
The space between words became standard;
Japan integrated phonetic components into their
writing.; 15th century A.D.; The printing press
was invented.
Vocabulary Practice
A.1. incorporated; 2. formatted; 3. correspond;
4. integrated; 5. duration; 6. chapter
B.1.a;2.b;3.b;4.b;5.a
结尾
Answer Key
Before You Watch
A. Guesses will vary. Actual answers are: 1. sun;
2. mountain; 3. fish; 4. man
B. Answers will vary.
While You Watch
A.1.e;2.h:3.f:4.b;5.a:6.d;7.g;8.c
B.1. early, tablets; 2. canals, cities; 3. complex,
language; 4. king, private
After You Watch
Answers will vary.
第10单元答案
开头
Answer Key
1. Answers will vary. Possibilities include:
asthma, lung disease, eczema.; 2. Answers will
vary. 3. Answers will vary. Possbilities include:
mercury, lead, DDT, DEET, PABA.
10A
Answer Key
Before You Read
A.1. compound; 2. pollutants; 3. Exposure
B. He's having a chemical analysis of his blood
done to see his level of PBDEs.
Reading Comprehension
1. b;2.d (lines 57-61); 3.a (lines93-99);4. b;
5. d;6. b; 7. d (paragraph P)
Reading Skill
1.F;2.F;3.T;4.F;5.T;6.F:7.F;8. T
Vocabulary Practice
A.1. albeit; 2. disturbing; 3. evaluate;
4. statistics; 5. phase out; 6. interfere; 7. ratio
B.1. miracle; 2. disturbing: 3. technical;
4. albeit; 5. phase out; 6. interfere; 7. ratio;
8. grant; 9. statistics; 10. evaluate
10B
Answer Key
Before You Read
A.1. Answers will vary. Possibilities indlude:
Oxygen for breathing; mercury in thermometers;
hydrogen for energy; lead, silver, bronze, gold,
other metals for machines, weapons, jewelry.
2. Answers will vary. Possibilities include: for
energy sources, for new technology.
B.1.b;2.c;3.a
Reading Comprehension
1.c (lines 12-16); 2. d (lines 44-49);
3.a (pages 220 -221); 4. a (lines 91-94);
5. C (lines 100-103);:6.c;7.b
Reading Skill
1. a. Glenn Seaborg; b. the plutonium bomb;
C. at the end of the war
2. a. Berkeley and Dubna; b. element 106;
C. by shooting light atoms against heavy ones;
d. they joined to create a single superheavy
nucleus
Vocabulary Practice
A.1. quest; 2. ollide; 3. trustworthy;
4. charged; 5. attributes
B.1.b;2.b;3.a;4.a;5.a;6.a
结尾
Answer Key
Before You Watch
A.1.h;2.g;3.a;4.b;5.d;6.c7.e;8.f
B.1.T:2.F:3.F;4.T
While You Watch
A. See above
B.1.a;2.b;3.c;4.c;5.a;6. a
After You Watch
A.1. Answers will vary. Possibilities include:
They look like white pearls when clean.
2. Answers will vary. Possibilities include:
polishing silver, plugging holes in walls.
B.1.g:2.d;3.f;4.a;5.b;6.c,7.e
第11单元答案
开头
Answer Key
1.-3. Answers will vary.
11A
Answer Key
Before You Read
A. 1. Part or all of Saudi Arabia, Egypt,
Israel, Turkey, Syria, Serbia, Croatia, Syria,
Iraq, Bulgaria, Romania; 2. The sultan of
the Ottoman Empire; he lived from 1494-
1566; 3. Constantinople, Istanbul, access to
multiple coastlines, along the Red Sea, the
Mediterranean, and the Black Sea.
B.1.d (line 77); 2. f (lines 262-265);
3. b (ine 56):4.a (lines 208- -215);
5.e (lines 51-52); 6. C (page 234)
Reading Comprehension
1.b;2.c (lines51-53);3. b (ines 77-79);4. C;
5.d;6.a;7. d (ine 213)
Reading Skill
Section1. g; Section 2. a; Section 3. f; Section
4. e; Section5. C, Section6. b
Vocabulary Practice
A.1. reign; 2. hierarchy; 3. successor, 4. biased;
5. infer,; 6. consulted
B.1. hierarchy; 2. successor, 3. infer, 4. consult;
5. nostalgia; 6. reign; 7. confide; 8. console;
9. biased; 10. subordinate
11B
Answer Key
Before You Read
A.1. creed; 2. prophet, 3. shrine; 4. dergy;
5. cathedral
B. Predictions may vary. All topics are discussed
except Moorish paintings.
Reading Comprehension
1.d;2. b (lines 67- -69):3.c (lines 77-79); 4. a;
5.c;6.a;7.c (lines 200 -201)
Reading Skill
Toledo.. : positive; liberal, tolerant
the rule of Ferdinand and Isabella: negative;
dark, persecute, cruelty
Andalucia: positive; warm, gentle
Cordoba: positive; blossomed, greatest
the cathedral: negative; banal, disappointment,
commonplace
Arabic language and poetry: positive; wealth of
vocabulary, distinctive, flowing
changes to the Alhambra: negative; abused,
eroded, neglect, suffered
tablaos shows: negative; threatened,
commercialization, loud
Vocabulary Practice
A.1. splendid; 2. liberal; 3. initiating;
4. empirical; 5. persecuted; 6. violated;
7. integrity
B.1. appendage; 2. liberal; 3. splendid;
4. amend; 5. invoke
结尾
Answer Key
Before You Watch
1.c:2.a;3.d:4.c5.b:6.a:7.c
While You Watch
A. See above
B.1. highest; 2. gardens; 3. Barcelona;
4. Eastern; 5.1882; 6. Arab, Jewish, Christian
and Gypsy; 7.14th; 8. Red; 9. Cordoba;
10. cathedral
After You Watch
A.1. Answers will vary. Possbilities indude: jazz
(European, African, American slaves); the tango
(Atrican, European, Brazilian slaves). 2. Answers
will vary. 3. Answers will vary. Possblities
include: Yes, because of the Internet and
globalization, people are exposed to cultures all
around the world.
第12单元答案
开头
Answer Key
1. Answers will vary. 2. Answers will vary.
Possbilities indude: cash- everyone takes it,
easy to steal, bulky if large amounts; credit
card- -easy to carry, most people take it, can be
stolen or hacked into; checks- easy to carry, not
everyone accepts them. 3. Answers will vary.
12A
Answer Key
Before You Read
A.1. inflation; 2. mint; 3. reserve; 4. treasury;
5. exchange rate; 6. interest
B. The ollowing should be checked: clamshells,
a bronze drum, a block of salt
Reading Comprehension
1.c;2. d; 3.a (lines 17- -18); 4. d (lines 130-
143);5. b;6. C; 7.c (lines 231-237)
Reading Skill
1.b:2.d;3.c;4.b
Vocabulary Practice
A.1. obligated; 2. levied; 3. formula;
4. transaction; 5. specfied; 6. affairs; 7. revised;
8. paradigm
B.1. transaction; 2. clarity; 3. levies; 4. revised;
5. clauses; 6. obligated
12B
Answer Key
Before You Read
A.1.T;2.F:3.F:4.T
B.1.b;2.a;3.c4.e;5.d
Reading Comprehension
1.b;2.d;3. c4.a (lines 132-136);5.a;6.c
(lines 219 220); 7. b (sidebar, page 265)
Reading Sill
Answers may vary, Possblities include:
Personal pronouns: they (ine刀)
Demonstratives: that (ine 21)
Forms of Other: another (line 19)
Conjunctions: and dine 24)
Signal words: however (line 27)
Synonyms: vehicles, trucks (lines 18 and 25)
Vocabulary Practice
A.1. explicitly; 2. auspicious; 3. depleted;
4. grade; 5. filed; 6. unrestrained; 7. convene;
8. hardships
B.1. merger, 2. explicit; 3. reprising; 4. convene
结尾
Answer Key
Before You Watch
1.f;2.b:3.e;4.a;5.d;6.c
While You Watch
A.1. art theft consultant; 2. making them
appear legal; 3. Art Loss Register, 4. saving
endangered antiquities; 5. context; 6. Italy
B.1. deny; 2. expose; 3. recovery; 4. ilusion;
5. convene; 6. fake; 7. valid; 8. transaction;
9. context; 10. value
After You Watch
1. Answers will vary. Posiblities include: Yes,
because they provide valuable insight into how
the crimes are carried out and can help prevent
future crimes. 2. Answers will vary. Possibilities
include: People who knowingly buy and sell
stolen art should be prosecuted. Both situations
are equally criminal. 3. Answers will vary.
Possbilities incude: The Card Players (Cezanne),
No.5 (Pollack), La Reve (Picasso), and several
by Van Gogh.
