第二节:完形填空(共20题:每题1.5分,满分30分)
阅读下面短文，掌握大意，然后从36～55各题所给的四个选项（A、B、C和D）中，选出最佳选项。
In the past, man did not have to think about the protection of his environment. There were few people on the earth, and natural resources seemed 36 .
Today things are 37 . The world has become too 38 . We are using up our natural resources too quickly, and the same time we are 39 our environment with dangerous chemicals. If we 40 to do this, human life on the earth will not survive.
Everyone 41 today that if too many fish are taken from the sea, there will soon be no fish left. Yes, with modern fishing 42 , more and more fish are caught. We know that if too many trees are cut down, 43 will disappear and nothing will grow on the land. But we continue to use 44 and more powerful machines to 45 more and more trees.
We realize that if rivers are polluted with waste products from factories, we will die. 46 , in most countries waste products are 47 put into rivers or into the sea, and there are 48 laws to stop this.
We know, too, that if the 49 of the world continues to rise at the present rate, in a few years, there will not be enough 50 . What can we do to solve these problems?
If we eat more vegetables and less 51 , there will be more food available for everyone. Land where we grow crops 52 five times more people than land where animals are kept.
Our natural resources will 53 longer if we learn to recycle them.
The world population will not rise so quickly if people use modern methods of birth 54 .
Finally, if we educate people to think about the problems, we shall have a better and cleaner 55 in the future.
36. A. beautiful B. unlimited C. little D. valuable
37. A. common B. the same C. changeable D. different
38. A. crowded B. small C. dirty D. busy
39. A. protecting B. saving C. polluting D. fighting
40. A. try B. continue C. decide D. have
41. A. wonders B. realizes C. considers D. discovers
42. A. poles B. thoughts C. methods D. ideas
43. A. mountains B. the sea C. trees D. forests
44. A. bigger B. less C. smaller D. higher
45. A. grow up B. plant C. save D. cut down
46. A. Thus B. However C. Generally speaking D. Therefore
47. A. still B. even C. also D. certainly
48. A. many B. enough C. some D. few
49. A. production B. pollution C. population D. revolution
50. A. houses B. vegetables C. food D. lives
51. A. feeds B. meat C. fish D. grain
52. A. feeds B. increases C. supplies D. helps
53. A. use B. stay C. keep D. last
54. A. control B. born C. plan D. reward
55. A. nature B. sea C. planet D. Forest
完形填空（共20小题；每小题1.5分，满分30分）
阅读下面短文，撑握其大意，然后从36—55各题所给的四个选项（A、B、C和D）中，选出最佳选项,并在答题卡上将该项涂黑。
It was the time when the telegraph was the fastest method of long-distance communication. A young man 36 for a job as a Morse Code(摩尔斯电码)operator.
Having answered an ad in the newspaper, he went to the office address that was 37 .When he arrived, he entered a large, busy 38 filled with noise and clatter, including the sound of the telegraph in the background. A 39 on the wall told job applicants to fill out a form and wait until they were 40 to enter the inner office. The young man filled out his form and sat down with the seven 41 applicants in the waiting area. 42 a few minutes, the young man stood up suddenly, 43 the room to the door of the inner office, and walked right in. 44 the other applicants came alive, wondering what was 45 . They whispered among themselves that they hadn’t been told to come yet and thought that the young man made a 46 and wouldn’t be accepted.
47 , when the employer went out of the office with the young man, he said to the other applicants , “Gentlemen, thank you very much for coming, but the 48 has just been filled .”
The other applicants began 49 and one of them 50 , “Wait a minute, I don’t understand. He was the 51 to come in, and we never even got a chance to be 52 . Yet he got the job. That’s not fair!”
The employer said, “I’m sorry, but 53 you’ve been sitting here, the telegraph has been 54 the following message in Morse Code: If you understand this message, then come right in. The job is yours. 55 of you heard it or understood it. This young man did. The job is his.”
36. A. allowed B. applied C. cared D. stood
37. A. listed B. proved C. named D. formed
38. A. market B. school C. office D. clinic
39. A. letter B. book C. mirror D. sign
40. A. persuaded B. refused C. forced D. ordered
41. A. another B. other C. others D. else
42. A. Since B. Before C. After D. For
43. A. tied B. left C. crossed D. cleaned
44. A. Surprisingly B. Strangely C. Regularly D. Naturally
45. A. going on B. going for C. set aside D. set up
46. A. difference B. mistake C. decision D. point
47. A. Therefore B. However C. Otherwise D. Moreover
48. A. job B. room C. seat D. gap
49. A. working B. cheering C. complaining D. hesitating
50. A. spoke aloud B. carried out C. asked for D. told of
51. A .first B. best C. worse D. last
52. A. checked B. interviewed C. informed D. invited
53. A. at times B. all the time C. ahead of time D. at one time
54. A. ticking out B. knocking out C. pointing out D. showing out
55. A. Some B. None C. Any D. Each
完形填空(共20分)
It’s a question anyone might ask in the future: Should your household robot be cool? Or practical? For Sony Corporation, robots ought to be entertaining. The company’s 41 robot, SDR—4 X, can sing and dance.
But for automaker Honda Motor Co Ltd, such 42 should perform useful tasks for their 43 masters.
“It is in the end a machine, a 44 ,” said Masato Hirose, Honda’s chief engineer.
Sony’s chief researcher Toshi Doi said robots performing such tasks as 45for ill or disabled people would not necessarily need a human 46 .
“The attractiveness of the SDR—4 X is its 47”, he said.
“It has feelings. It has instincts(直觉).” Drawing from its 48of 60,000 words, an SDR—4 X robot 49 last week that it can ask a 50 in a high voice: “Please 51still for a minute while I memorize your face.”
It also 52 off its ability to walk on uneven(不平的)floors, and come to its owner when it’s 53. While Honda’s robot is 54 used mainly for entertainment, it is 55 that one day it will be a useful companion. So its robot have been 56to be 120cm tall – more than twice the height of the SDR—4 X. Hirose said 120cm is the 57a robot that moves around a home should be.
“If you are going to have something that can move with 58 in a human surroundings(环境), then it is better to 59 the robot like a human,” he said.
Hirose said that he hopes the robot will be 60 enough so that he can buy one for himself and let it get him a beer.
41. A. earliest B. latest C. coolest D. smallest
42. A. matters B. people C. machines D. inventions
43. A. human B. own C. creative D. all
44. A. tool B. robot C. toy D. slave
45. A. looking B. working C. leaving D. caring
46. A. form B. character C. job D. ability
47. A. appearance B. purpose C. personality D. material
48. A. storage B. use C. making creation
49. A. said B. announced C. showed D. imaged
50. A. friend B. partner C. servant D. guest
51. A. hold B. lie C. take D. make
52. A. left B. showed C. put D. dropped
53.A. tired B. called C. controlled D. made
54.A. also B. still C. again D. even
55. A. sure B. hoped C. reported D. described
56. A. expected B. raised C. proved D. designed
57 A. cheapest B. dearest C. smallest D. biggest
58. A. ease B. care C. difficulty D. foot
59. A. buy B. use C. invest D. design
60. A. useful B. smart C. cheap D. small
三．完形填空
How often do you change your hairstyle or ask for new dresses? You may be 31 to follow trends（潮流）in Western countries, but young people in the United States don’t care as much about
32 as you do.
A recent survey(调查) among high school 33 in China, Japan, South Korea and the US found that 34 teenagers care more about their appearance than young people in the US.
This survey was held in 156 high schools in the four countries. More than 7,000 teenagers were
35 about their views on life and the world. South Koreans, at 83 per cent, cared most about their looks. They were 36 by the Chinese and Japanese, while US students showed the least interest in fashion at only 33 per cent.
“The different results show 37 of cultural background（背景）,” said Sun Yunxiao from the China Youth and Children Research Centre. He explained that in the US there are many different 38 of beauty, so teens are more 39 to be confident about their appearance.
US teenagers’ high self-confidence is displayed（展示） in the 40 . About 85 per cent are happy with themselves. The percentage of self-confident Chinese students stands at only 30 per cent.
What’s 41 , US students showed more individuality（个性）, with 88 per cent 42 that “people should follow their own interests rather than 43 of others”. This is much 44 than South Korea’s 69 per cent, China’s 49 and Japan’s 48.
Japanese students, at 52 per cent, are most dissatisfied with modern society. Chinese and Koreans follow at second and 45 most dissatisfied.
“ 46 to the survey, Chinese students are happy and disciplined (有纪律的). They have a strong wish to make a difference. 47 Chinese students need to be more independent and learn how to relax,” said Sun.
The students have different 48 backgrounds. But home and places where friends gather are the favorite places all teens seek happiness.
Exams and worries about life after graduation cause much 49 among most of the teens
50 for the survey.
31. A. absorbed B. willing C. careless D. unhappy
32. A. hairstyle B. dresses C. fashion D. culture
33. A. teachers 
B. students C. citizens D. colleagues
34. A. Asian B. American C. African D. Western
35. A. answered B. requested C. persuaded D. questioned
36. A. followed B. decreased C. reduced D. compared
37. A. relations B. barriers C. customs D. differences
38. A. awareness B. Standards C. Consciences D. expenses
39. A. admirable B. confused C. likely D. unbelievable
40. A. survey B. setting C. reference D. paper
41. A. worse B. better C. less D. more
42. A. disagreeing B. observing C. agreeing D. puzzling
43. A. those B. that C. it D. One
44. A. lower B. larger C. smaller D. higher
45. A. first B. third C. fourth D. last
46. A. leading B. devoting C. Appealing D. According
47. A. But B. And C. So D. Or
48. A. political B. cultural C. Economical D. commercial
49. A. expectation B. hesitation C. Concern D. Ambition
50. A. interviewed B. advised C. Overlooked D. invested
At the beginning of this century, medical scientists made an interesting discovery; we are built not just of flesh and blood but also of time. They were 36 to show that we all have “a body clock” 37 us, which controls the 38 and fall of our body energies, 39 us different from one day one to the next.
The 40 of “a body clock” should not be too 41 since the lives of most living things are controlled 42 the 24 hour night-and-day cycle. We feel 43 and fall asleep at night and become 44 and energetic during the day. If the 24 hour-cycle is 45 , most people experience unpleasant 46 . For example, people who are not 47 to working at night can find that 48 of sleep causes them to 49 badly at work.
50 the daily cycle of sleeping and 51 , we also have other cycles which 52 longer than one day. Most of us would 53 that we feel good on some days and not so good on 54 ; sometimes our ideas seem to flow and at other times, they 55 do not exist.
36．A．anxious B．able C．careful D．proud
37．A．inside B．around C．between D．on
38．A．movement B．supply C．use D．rise
39．A．showing B．treating C．making D．changing
40．A．invention B．opinion C．story D．idea
41．A．difficult B．exciting C．surprising D．interesting
42．A．from B．by C．over D．during
43．A．dull B．tired C．dreamy D．peaceful
44．A．regular B．excited C．lively D．clear
45．A．disturbed B．shortened C．reset D．troubled
46．A．moments B．feelings C．senses D．effects
47．A．prevented B．allowed C．expected D．used
48．A．miss B．none C．lack D．need
49．A．perform B．show C．manage D．control
50．A．With B．As well as C．Except D．Rather than
51．A．working B．moving C．living D．waking
52．A．repeat B．remain C．last D．happen
53．A．agree B．believe C．realize D．allow
54．A．other B．the other C．all other D．others
55．A．just B．only C．still D．yet
Of all living creatures on earth, insects are the most plentiful. Some 1 are very useful to man, for example, bees, 2 we get honey and wax, and silkworms, which 3 us with silk. Other varieties, 4 , are extremely harmful, and do a great 5 of damage, especially to crops. Locusts are perhaps the most dangerous of all, 6 they will eat almost any green 7 , and when millions of them 8 on cultivated land they soon leave it 9 . In some countries they are the farmers’ 10 enemy. Another nuisance is the common 11 , not only because it 12 us indoors and out-of-doors, but because it spreads diseases.
Scientists have given much time and 13 to the study of insects. It needs the most careful and 14 observation. Thanks 15 their discoveries we now know almost all 16 is to be known about the habits of these hardworking insects, bees and ants, which live in 17 better planned in some ways than our 18 . But the most valuable work has been done in trying to give 19 to men, animals and crops from the 20 which insects cause.
1．A．members B．forms C．qualities D．varieties
2．A．by which B．from which C．of which D．in which
3．A．give B．produce C．offer D．supply
4．A．however B．meanwhile C．offer D．supply
5．A．majority B．number C．amount D．what’s more
6．A．and B．for C．if D．when
7．A．grass B．field C．fruit D．plant
8．A．settle B．attack C．pass D．cross
9．A．bare B．nothing C．empty D．untouched
10．A．hardest B．greatest C．serious D．wildest
11．A．insect B．creature C．fly D．enemy
12．A．dislikes B．bites C．worries D．hates
13．A．understanding B．ideas C．comprehension D．thought
14．A．serious B．patient C．curious D．long
15．A．for B．of C．to D．with
16．A．that B．which C．there D．what
17．A．societies B．crowds C．teams D．organizations
18．A．world B．nation C．selves D．own
19．A．help B．protection C．living D．defense
20．A．injury B．wound C．sickness D．ruin
Cutting meat production and consumption by 30 percent would help to reduce carbon emissions(排放) and improve health in the most meat-loving nations, scientists said on Wednesday.
Using prediction models, British and Australian researchers 1 that improving efficiency, increasing carbon capture and 2 fossil fuel dependence in farming would not be enough to 3 emissions targets.
But combining these steps 4 a 30 percent reduction in livestock（家畜） 5 in major meat-producing nations and a similar 6 in meat-eating, would lead to "substantial population health benefits" and cut emissions, they said.
The study found that in Britain, a 30 percent 7 intake of animal-source saturated（饱和的） fat by adults would reduce the 8 of premature（过早的） deaths from heart disease by some 17 percent -- equivalent to 18,000 premature deaths reduced in one year.
In Sao Paulo, Brazil, it could mean as 9 as 1,000 premature deaths reduced in a year, they said.
10 the United Nations Food and Agricultural Organization, 18 percent of all greenhouse gas emissions are from meat production and experts say rising 11 for meat, particularly in countries with growing economies, could 12 livestock production up by 85 percent from 2000 levels 13 2030.
The scientists said global action was needed to maximize the benefits of cutting meat production and 14 , and that the environmental 15 "may apply only in those countries that currently have high production levels."
The study was 16 in The Lancet medical journal as part of a series in climate change and health 17 the Copenhagen global climate summit scheduled next month.
In a second study, British scientists found that increased walking and cycling, and 18 cars, would have a much greater impact on health 19 low-emission vehicles in rich and middle-income countries.
Andrew Haines, director of the London School of Hygiene and Tropical Medicine and head of the research series, said delegates at Copenhagen needed "to understand the potential 20 impacts of their plans."
( ) 1. A. invented B. experimented C. found D. proved
( ) 2. A. increasing B. speeding C. stopping D. reducing
( ) 3. A. meet B. change C. break D. adapt
( ) 4. A. by B. with C. to D. in
( ) 5. A. sale B. eating C. production D. use
( ) 6. A. cut B. increase C. addition D. consumption
( ) 7. A. lower B. higher C. more D. less
( ) 8. A. amount B. number C. quantity D. deal
( ) 9. A. much B. many C. few D. little
( ) 10. A. According to B. Apart from C. As well as D. In addition to
( ) 11. A. resistance B. fear C. demand D. anxiety
( ) 12. A. weaken B. strengthen C. drive D. broaden
( ) 13. A. in B. by C. from D. after
( ) 14. A. evaluation B. consumption C. process D. store
( ) 15. A. advantage B. disadvantage C. pollution D. improvement
( ) 16. A. written B. claimed C. delivered D. published
( ) 17. A. along with B. from behind C. ahead of D. in front of
( ) 18. A. more B. fewer C. no . none
( ) 19. A. then B. as C. that D. than
( ) 20. A. health B. body C. spirit D. emotion
Once in a blue moon there is one on New Year's Eve. Revelers ringing in 2010 will be treated to a so-called blue moon. According to popular definition, a blue moon is the second full moon in a month. But don't 1 it to be blue - the name has nothing to 2 the color of our closest celestial（天体） neighbor.
A full moon 3 on December 2. It will appear again on Thursday in time for the New Year's countdown.
"If you're in Times Square, you'll see the 4 moon right above you. It's going to be that brilliant," said Jack Horkheimer, director emeritus of the Miami Space Transit Planetarium and host of a weekly astronomy TV show.
The New Year's Eve blue moon will be 5 in the United States, Canada, Europe, South America and Africa. For partygoers in Australia and Asia, the full moon does not show up 6 New Year's Day, making January a blue moon month for them.
However, the Eastern Hemisphere can celebrate with a partial lunar eclipse（月蚀） on New Year's Eve when 7 of the moon enters the Earth's shadow. The 8 will not be visible in the Americas.
A full moon occurs 9 29.5 days, and most years have 12. 10 , an extra full moon in a month - a blue moon - occurs every 2.5 years. The 11 time there was a lunar double take was in May 2007. New Year's Eve blue moons are rarer, occurring every 19 years. The last time was in 1990; the next one won't 12 again until 2028.
Blue moons have no astronomical 13 , said Greg Laughlin, an astronomer at the University of California, Santa Cruz.
"`Blue moon' is just a 14 in the same sense as a `hunter's moon' or a `harvest moon,'" Laughlin said in an e-mail.
The popular definition of blue moon 15 after a writer for Sky & Telescope magazine in 1946 misunderstood the Maine Farmer's Calendar and marked a blue moon as the second full moon in a month. In fact, the calendar 16 a blue moon as the third full moon in a season with four full moons, not the usual three.
Though Sky & Telescope corrected the 17 decades later, the definition caught on. For purists（语言纯正癖者）, however, this New Year's Eve full moon doesn't even qualify as a 18 moon. It's just the first full moon of the winter season.
In a tongue-in-cheek essay 19 on the magazine's Web site this week, senior contributing editor Kelly Beatty wrote: "If skies are clear when I'm 20 celebrating, I'll take a peek（眯着眼睛看） at that brilliant orb（天体） as it rises over the Boston skyline to see if it's an icy shade of blue. Or maybe I'll just howl."
( ) 1. A. wish B. wait C. hope D. expect
( ) 2. A. deal with B. do with C. develop with D. form into
( ) 3. A. occurred B. came C. ran D. went
( ) 4. A. full B. half C. bright D. part
( ) 5. A. out of sight B. visible C. big D. clear
( ) 6. A. until B. when C. before D. since
( ) 7. A. part B. all C. any D. none
( ) 8. A. moon B. eclipse C. sun D. shadow
( ) 9. A. each B. every C. either D. all
( ) 10. A. On the whole B. Generally speaking C. On average D. In addition
( ) 11. A. last B. next C. other D. another
( ) 12. A. go B. see C. come D. look
( ) 13. A. point B. evident C. theory D. significance
( ) 14. A. name B. object C. phenomenon D. tradition
( ) 15. A. created B. came about C. made D. copied
( ) 16. A. named B. called C. introduced D. defined
( ) 17. A. error B. name C. reality D. number
( ) 18. A. blue B. red C. yellow D. grey
( ) 19. A. published B. posted C. printed D. written
( ) 20. A. in B. out C. away D. on
For some people, the sight of a mouse can be reason to scream. For other mice, the same sight can be reason to sing.
Mice will probably 21 sing their way to any concert, but researchers in the United States have found 22 that mice do, 23 , sing.
Scientists already knew that mice make ultrasonic(超声波) sounds—noises that are too high-pitched(高音的) for people to hear 24 special equipment.
To find out whether mice put such sounds together in song-like 25 , the researchers recorded the sounds of 1 mice. Using computer 26 , they were able to separate the sounds into specific types of syllables(音节), and found the mice produced about 10 syllables per second.
The results showed that nearly all of the mice repeated sequences(顺序) of syllables in different patterns. That’s enough to meet the definition of what scientists 27 song. But not all scientists are 28 _ that what the mice are doing is 29 singing. To prove it, the researchers must show that there’s learning involved. And, they need to __ 30 why the mice sing.
21. A. almost B. even C. never D. usually
22. A. coincidence B. evidence C. guidance D. instance
23. A. at once B. by means C. for example D. in fact
24. A. during B. inside C. through D. without
25. A. fashions B. instructions C. patterns D. styles
26. A. access B. printer C. screen D. software
27. A. call B. hear C. sing D. write
28. A. accustomed B. convinced C. involved D. qualified
29. A. actually B. obviously C. simply D. unlikely
30. A. figure out B. get about C. run across D. talk over
For some people, the sight of a mouse can be reason to scream. For other mice, the same sight can be reason to sing.
Mice will probably 21 sing their way to any concert, but researchers in the United States have found 22 that mice do, 23 , sing.
Scientists already knew that mice make ultrasonic(超声波) sounds—noises that are too high-pitched(高音的) for people to hear 24 special equipment.
To find out whether mice put such sounds together in song-like 25 , the researchers recorded the sounds of 1 mice. Using computer 26 , they were able to separate the sounds into specific types of syllables(音节), and found the mice produced about 10 syllables per second.
The results showed that nearly all of the mice repeated sequences(顺序) of syllables in different patterns. That’s enough to meet the definition of what scientists 27 song. But not all scientists are 28 _ that what the mice are doing is 29 singing. To prove it, the researchers must show that there’s learning involved. And, they need to __ 30 why the mice sing.
21. A. almost B. even C. never D. usually
22. A. coincidence B. evidence C. guidance D. instance
23. A. at once B. by means C. for example D. in fact
24. A. during B. inside C. through D. without
25. A. fashions B. instructions C. patterns D. styles
26. A. access B. printer C. screen D. software
27. A. call B. hear C. sing D. write
28. A. accustomed B. convinced C. involved D. qualified
29. A. actually B. obviously C. simply D. unlikely
30. A. figure out B. get about C. run across D. talk over
Modern zoos are very different from zoos built fifty years ago. At that time, zoos were places ___1___people could see animals from many parts of the world. The animals lived in _____2___with iron bars. The cages were easy to keep clean.__ 3___, for the animals, the cages were small and impossible to hide in. Although the zoo ____4____ took good care of them, many of the ____5____ did not feel comfortable, and they often became ____6____.
In modern zoos, people can see animals in more _____7___ conditions. The animals are given more freedom in larger places ____8____ they can live more freely as they would in _____9___. Even the appearance of zoos has changed. Trees and grass grow in the cages, and water flows____10____ the places that the animals live in. There are few bars,____ 11____ there is often a deep ditch(沟), filled with _____12___, which surrounds a space where several_____13___ of animals live together as they would naturally. In an American zoo, the visitor can walk ____14____ a huge special cage that is filled with trees, some small animals and many birds. And it is large enough for all the birds to live ____15____.In a zoo in New York, because of special night ____16____, people can observe certain animals that are ___17_____ only at night when most zoos are closed. Some zoos have special places for visitors to ____18____ animals that live in the desert or underwater. Some other zoos have special places for animals that live in cold conditions like the ____19____ from the Arctic.
Modern zoos not only show animals for visitors, but also ____20____ and save rare animals. For this reason, fifty years from now, the grand children of today’s can still be able to enjoy watching these animals.
1. A. that B. where C. which D. there
2. A. houses B. rooms C. cages D. offices
3. A.Therefore B. However C. So D. Though
4. A. masters B. managers C. keepers D. trainers
5 .A. workers B. animals C. bears D. animals
6. A. excited B. angry C. ill D. frightened
7. A. natural B. difficult C. warm D. different
8. A. so that B. and C. but D. or
9. A. forest B. nature C. rivers D. the water
10. A. in B. by C. near D. through
11. A. instead B. instead of C. and D. or
12. A. stones B. earth C. oil D. water
13. A. sorts B. families C. classes D. groups
14. A. by B. out C. through D. in
15. A. happily B. naturally C. deeply D. hardly
16. A. moon B. sign C. light D. signal
17. A. live B. active C. living D. sleeping
18. A. feel B. touch C. watch D. talk to
19. A. snakes B. monkeys C. bears D. tigers
20. A. buy B. keep C. sell D. catch
From the earlier time it was well ___1___to the Peruvians that when a cut ___2____made in the thick skin of a ___3____tree, a white liquid like milk came ___4___. From this fluid (流动的) a sticky ___5_____of rubber might be made. This rubber is ___6____and wax-like when warm so that it is ___7_____to give any form.
The Peruvians ___8____the discovery that it is very good for ___9____out water. Then in the early ___10____of the century they made overshoes to ___11___their feet dry. Then a certain Mr Mackintosh ___12_____coats of cloth which were ___13____with rubber. Today Mackintosh raincoats are still ___14_____after him.
But these first rubber shoes ___15______raincoats were unpleasantly soft and sticky in ___16___. They were also stiff and very ___17____in winter. They were like wax(蜡) although they ___18____a bit stronger.
But the rubber ___19___use today has been improved. It is ___20____sticky but soft and elastic(弹性的) and strong enough for any season.
1. A. talked B. heard C. seen D. known
2. A. has B. was C. may D. will
3. A. rubber B. apple C. orange D. oak
4. A. from B. through C. out D. up
5. A. raincoat B. shoes C. border D. mass
6. A. hard B. fast C. stubborn D. soft
7. A. important B. impossible C. possible D. uncertain
8. A. made B. found C. wrote D. neglected
9. A. finding B. keeping C. making D. pouring
10. A. kind B. part C. sort D. halves
11. A. clean B. clear C. keep D. prevent
12. A. made B. found C. appeared D. gave
13. A. full B. like C. lined D. applied
14. A. looked B. named C. made D. searched
15. A. or B. and C. with D. but
16. A. today B. summer C. winter D. rain
17. A. soft B. sticky C. elastic D. cold
18. A. felt B. made C. needed D. produced
19. A. Mr Mackintosh B. the Peruvians C. we D. is
20. A. also B. always C. neither D. not
Throughout history man has had to accept the fact that all living things must die. But people now live longer than they 36 . Yet, all living things still show the 37 of aging, which will eventually 38 death.
Aging is not a disease, but as a person passes maturity (成熟期), the cells of the body and the 39 they form do not function as well as they 40 in childhood and teenage years. The body provides less 41 against disease and is more 42 to have accident.
A number of related causes may 43 aging. Some cells of the body have a fairly long life, but they are not 44 when they die. As a person ages, 45 of brain cells and muscle cells decreases. 46 body cells die and are replaced by new cells. In an aging person the 47 cells may not be as workable or as capable 48 growth as those of a young person.
Another 49 in aging may be changes within the cells 50 . Some of the protein chemicals in cells are known 51 with age and become less elastic (有弹性的). This is why the skin of old people wrinkles (皱纹) and 52 . This is also the reason why old people 53 in height. There may be other more important chemical changes in the cells. Some complex cell chemicals, such as DNA and RNA, store and 54 information that the cells need． Aging may affect this 55 and change the information-carrying molecules so that they do not transmit the information as well.
36. A．would B．be used to C．used to D． used
37. A．function B．effect C．affect D． sign
38. A．lead in B．give in C．run into D． result in
39. A．hands B．feet C．heart D． organs
40. A．do B．has done C．did D． had done
41. A．energy B．protection C．vigor D． power
42. A．likely B．probable C．possible D． alike
43. A．attend to B．contribute to C．add to D． devote to
44. A．replaced B．reborn C．recovered D． surrendered
45. A．a number B．the amount C．the number D． a great deal
46. A．The others B．The other C．Another D．Other
47. A．old B．left C．new D． other
48. A．to B．for C．of D． in
49. A．factor B．effect C．reason D． element
50. A．for themselves B．of themselves C．themselves D． on their own
51. A．change B．to have changed C．to change D． to be changed
52. A．hangs loose B．hangs loosely C．is hanging loosely D． is hanging loose
53. A．increase B．shrink C．lengthen D． decrease
54. A．pass away B．pass by C．pass off D． pass on
55. A．improvement B．procession C．approach D． process
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