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职称英语考试05年至10年理工类(B级)试

2010年职称英语真题之理工类B级试题第1部分：词汇选择(第1～15题，每题1分，共15分)

下面每个句子中均有一个词或短语有下划线，请为每处划线部分确定一个意义最为接近的选项。

1. The old concerns lose importance and some of them vanish altogether.

A.develop

B.disappear

C.linger

D.renew

2.In the United States educational system, intermediate school is the transitional phase between the primary grades and high school.

A.stage

B.notion

C.pattern

D.alternative

3.Fluoride deters tooth decay by reducing the growth of bacteria that destroy tooth enamel.

A.facilitates

B.overwhelms

C.inhibits

D.loosens

4.The firm of Bonnin and Morris in Philadelphia was probably the first American Company to manufacture porcelain.

A.silverware

B.crystal

C.china

D.linen

5.Gunpowder was used extensively in firearms prior to 1990.

A.in

B.around

C.from

D.before

6.We packed up the things I had accumulated over the last three years and left for good.

A.close

B.near

C.past

D.final

7.The chemical is lethal to rats but safe to cattle.

A.toxic

B.harmful

C.deadly

D.contagious

8.She is very conscientious about her work.

A.worried

B.careful

C.anxious

D.nervous

9.She has consolidated her power.

A.strengthened

B.won

C.hardened

D.united

10.The drinking water is contaminated with impurities.

A.blackened

B.polluted

C.darkened

D.mixed

11.Her novel depicts a futuristic America.

A.writes

B.sketches

C.describes

D.indicates

12.He expressed concern that the ship might be in distress.

A.despair

B.difficulties

C.need

D.danger

13.They are endeavoring to change society as a whole.

A.trying

B.working

C.doing

D.making

14.Your eternal boasting annoys everyone,

A.unchangeable

B.everlasting

C.boring

D.monotonous

15.The other women seemed contented and they even exhibited their bellies with pride.

A.demonstrated

B.uncovered

C.spread

D.showed

第2部分：阅读判断(第16～22题，每题1分，共7分)

下面的短文后，列出了7个句子，请根据短文的内容对每个句子作出判断：如果该句提供的是正确信息，请选择A;如果该句提供的是错误信息，请选择B;如果该句的信息文中没有提及，请选择C。

Mother Nature Shows Her Strength

Tornadoes(龙卷风) and heavy thunderstorms moved across the Great Lakes and into Trumbull County on Saturday evening.The storms were dramatic and dangerous.George Snyder was driving the fire truck down Route 88 when he first noticed that a funnel(漏斗状的) cloud was behind him."I stopped the truck and watched the funnel cloud.It was about 100 feet off the ground and I saw it go up and down for a while.It was moving toward Bradley Road and then suddenly it disappeared."Snyder said.

Snyder only saw one of the funnel clouds that passed through northeastern Ohio on Saturday.In Trumbull County, a tornado turned trees onto their sides.Some trees feel onto houses and Cars.Other trees fell into telephone and electrical wires as they went down.Amanda Symcheck was having a party when the storm began."I knew something

was wrong，"she said."I saw the sky go green and pink(粉红色).Then it sounded like a train rushing toward the house.I started crying and told everyone to go to the basement for protection."

The tornado caused a lot of damage to cars and houses in the area.It will take a long time and much money to repair everything.There was also serious water damage from me under storms.The heavy rains and high wind caused the power to go out in many homes. The storms caused serious flooding in areas near the river.More than four inches of rain fell in parts of Trumbull County.The river was so high that the water ran into streets and houses.Many streets had to be closed to Cars and trucks because of the high water.'This made it difficult for fire

trucks.police cars，and other rescue vehicles to help people who were in trouble. Many people who live near the river had to leave their homes for their own safety.Some people reported five feet of water in their homes.Local and state officials opened emergency shelters for the people who were evacuated(撤走).The Red Cross served meals to them."This was a really intense storm。"said Snyder. 'People were afraid。Mother Nature call be fierce.We were lucky this time.No one was killed."

16.The weather was nice in Trumbull County on Saturday evening.

A.Right

B.Wrong

C.Not mentioned

17.George Snyder was a firefighter.

A.Right

B.Wrong

C.Not mentioned

18.Amanda Symcheck was having a party in the basement when the storm began.

A.Right

B.Wrong

C.Not mentioned

19.Power supply system was not damaged during the stoma.

A.Right

B.Wrong

C.Not mentioned

20.There had not been such a severe storm in Trumbull County for a hundred years.

A.Right

B.Wrong

C.Not mentioned

21.Rescue vehicles had a hard time getting to people.

A.Right

B.Wrong

C.Not mentioned

22.Several people were missing during the storm.

A.Right

B.Wrong

C.Not mentioned

第3部分：概括大意与完成句子(第23～30题，每题1分，共8分)

下面的短文后有两项测试任务：(1)第23-26题要求从所给的6个选项中为第2-5段每段选择1个最佳标题;(2)第27-30题要求从所给的6个选项中为每个句子确定1个最佳选项。

Cloning：Future Perfect?

1 A clone is an exact copy of a plant or animal produced from any one cell. Since Scottish scientists reported that they had managed to clone a sheep named Dolly in 1997, research into cloning has grown rapidly. In May l998, scientists in Massachusetts managed to create two identical calves using cloning technology. A mouse has also been cloned successfully. But the debate over cloning humans really started when Chicago physicist Richard Seed made a surprising announcement: "We will have managed to clone a human being within the next two years," he told the world.

2 Seed's announcement provoked a lot of media attention, most of it negative. In Europe, nineteen nations have already signed an agreement banning human cloning and in the US the President announced: "We will be introducing a law to ban all human cloning and many states in the US will have passed anti-cloning laws by the end of the year."

3 Many researchers are not so negative about cloning. They are worried that laws banning human cloning will threaten important research. In March, the New England Journal of Medicine called any plan to ban research on cloning humans seriously mistaken. Many researchers also believe that in spite of attempts to ban it, human cloning will have become routine by 2010 because it is impossible to stop the progress of science.

4 Is there reason to fear that cloning will lead to a nightmare world? The public has been bombarded with newspaper articles, television shows and films, as well as cartoons. Such information is often misleading, and makes people wonder what on earth the scientists will be doing next.

5 Within the next five to ten years scientists will probably have found

a way of cloning humans. It could be that pretty soon we will be able to choose the person that we want our child to look like. But how would it feel to be a clone among hundreds, the anti-cloners ask. Pretty cool, answer the pro-cloners.

23.Paragraph 1 _______________

24.Paragraph 2 _______________

25.Paragraph 3 _______________

26.Paragraph 4 _______________

A.Strong Reactions

B.Anxiety about the future of Cloning

C.The Right Choose

D.What Is Cloning?

E.Arguments in Favor of Cloning

F.A Common Sight

27.Richard Seed claimed to be allele to clone _______________

28.Richard Seed's announcement received _______________

29.The United States will introduce _______________

30.Within ten years scientists will probably have _______________

A.the nucleus of a cell

B.cloned human beings

C.a human being in two years

D.a law to ban human cloning

E.a report on human cloning

F.heavy media coverage

第4部分：阅读理解(第31～45题，每题3分，共45分)

下面有3篇短文，每篇短文后有5道题。请根据短文内容，为每道题确定一个最佳选项。

第一篇

Walking Robot Carries a Person

The first walking robot capable of carrying a person unveiled on Friday in Tokyo, Japan. Its creators at Waseda University in Tokyo and the Japanese robotics company Tmsuk hope their two-legged creation will one day enable wheel-chair users to climb up and down stairs and assist the movement of heavy goods over uneven terrain.

The battery-powered robot, code-named WL-16, is essentially an aluminum chair mounted on two sets of telescopic poles. The poles are bolted to flat plates which act as feet. WL-6 uses 12 actuators to move forwards, backwards and sideways while carrying an adult weighing up to 60 kilograms(130 pounds). The robot can adjust its posture and walk smoothly even if the person it is carrying shifts in the chair. At present it can only step up or down a few mil1imeters, but the team plans to make it capable of dea1ing with a normal flight of stairs.

"I believe this bipedal robot, which I prefer to call a two-legged walking chair rather than a wheel-chair, will eventually enable people to go up and down the stairs," said Atsuo Takanishi, from Waseda University

"We have had strong robots for some time but usually they have been manipulators, they have not been geared to carrying people around," says Ron Arkin, at the Georgia Institute of Technology and robotics consultant for Sony. "But I don't know how safe and how

user-friendly WL- 16 is."

Tmsuk chief executive Yoichi Takamoto argues that bipedal or

multi-legged robots will be more useful than so-called "caterpillar models" for moving over uneven ground.

WL- 16's normal walking stride measures 30 centimeters, but it can stretch its legs to 136 cm apart. The prototype is currently

radio-controlled, but the research team plans to equip it with a stick-like controller for the user in future", Takanishi said, it wi1l take "at least two years" to develop the WL- 16 prototype into a working model.

Smaller, ground-hugging robots have been developed to pass across tricky terrain. One maggot-like device uses a magnetic fluid to pulse its way along", while another snake-like robot uses smart software to devise new movement strategies if the landscape takes its toll on any one part. One ball-shaped robot even uses a leap-and-bounce approach to travel over bumpy territory.

But none of these are big or strong enough to carry a person too.

31.The robot that unveiled on Friday in Tokyo, Japan

A.has two legs and is able to carry a person.

B.surprised visitors from Waseda University.

C.enables wheel-chair users to climb up and down stairs.

D.can transport heavy goods over uneven terrain.

32.Which of the following about how the robot works is NOT correct?

A.The robot is battery-powered.

B.The robot has two sets of poles mounted on flat plates.

C.The robot uses actuators to move about.

D.The robot can cap an adult of up to 60 kilograms.

33.What does Ron Arkin think of WL-l6?

A.He thinks the robot is user-friendly.

B.He thinks it i8 another kind of manipulator.

C.He is not sure if the robot can cap people safely

D.He doubts if the robot is strong enough to climb stairs.

34.Which of the following description about WL-l6 is true?

A.It is a ground-hugging robot.

B.It is a caterpillar model.

C.It needs time to be developed into a working model.

D.It is going to be radio-controlled.

35.What is the main idea of the last paragraph?

A.Different shapes of robots perform different functions.

B.Many kinds of robots have been developed to walk over tricky terrain.

C.Robots, big or small, perform almost the same function.

D.None of the four kinds of robots are strong enough to carry people around.

第二篇

Night of the Living Ants

When an ant dies, other ants move the dead insect out of the nest. This behavior is interesting to scientists, who wonder how ants know for sure - and so soon-that another ant is dead.

Dong-Hwan Choe, a scientist at the University of California found that Argentine ants have a chemical on the outside of their bodies that signals to other ants, "I'm dead - take me away."

But there's a twist to Choe's discovery. These ants are a little bit like zombies. Choe says that the living ants - not just the dead ones - have this death chemical. In other words, while an ant crawls around, perhaps in a picnic or home, it's telling other ants that it's dead.

What keeps ants from hauling away the living dead? Choe found that Argentine ants have two additional chemicals on their bodies, and these tell nearby ants something like, "wait -I'm not dead yet. "So Choe's research turned up two sets of chemical signals in ants: one says, "I'm dead," the other set says, "I'm not dead yet."

Other scientists have tried to figure out how ants know when another ant is dead. If an ant is knocked unconscious, other ants leave it alone until it wakes up. That means ants know that unmoving ants can still be alive.

Choe suspects that when an Argentine ant dies, the chemical that says "Wait - I'm not dead yet" quickly goes away. Once that chemical is gone, only the one that says "I'm dead" is left." It's because the dead ant no longer smells like a living ant that it gets carded to the graveyard, not because its body releases new unique chemicals after death," said Choe. When other ants detect the "dead" chemical without the "not dead yet" chemical, they haul away the body. This was Choe's hypothesis.

To test his hypothesis, Choe and his team put different chemicals on Argentine ant pupae. When the scientists used the "I'm dead" chemical, other ants quickly hauled the treated pupae7 away. When the scientists used the "Wait - I'm not dead yet" chemicals, other ants left the treated pupae alone. Choe believes this behavior shows that the "not dead yet" chemicals override the "dead" chemical when picked up by adult ants. And that when an ant dies, the "not dead yet" chemicals fade away. Other nearby ants then detect the remaining "dead" chemical and remove the body from the nest.

36.What is meant by "death chemical" mentioned in paragraph 3?

A.A chemical that contains poison.

B.A chemical that causes death.

C.A chemical that announces death.

D.A chemical that prevents death.

37.Which of the following is closest in meaning to the question "What keeps ants from hauling away the living dead? (paragraph 4)"?

A.How do ants know what is to be hauled away from the dead ants?

B.What prevents ants from removing the ants that are not yet dead?

C.What do ants do to keep themselves away from the dying ants?

D.What prevents ants from being carried away after they die.

38.What is NOT true about Choe's finding?

A.When an ant dies, it produces a "I am dead" signal.

B.Living ants have the death chemical on their bodies.

C.Ants have two sets of chemicals on theft bodies.

D.Ants have the "I am not dead" chemical on their bodies.

39.According to Choe's hypothesis,

A.an ant still smells like a living when it dies.

B.the "I am dead" chemical leaves the ant's body when it dies.

C.the "I am not dead yet" chemical is left when an ant dies.

D.the "I am not dead yet" chemical leaves the ant's body when it dies.

40.What is the result of the test on Choe's hypothesis?

A.It proves that his hypothesis is time.

B.Not enough evidence has been found to support his hypothesis.

C.It shows that his hypothesis is wrong.

D.It indicates that his hypothesis needs revising.

第三篇

How to Interview People

Interviewing(采访)is one of those skills that you can only get better at. You will never again feel so ill at ease as when you try it for the first time, and you‘ll probably never feel entirely comfortable trying to get from another person answers that he or she may be too shy to reveal. But at least half of the skill is mechanical. The rest is instinct, which can all be learned with experience.

The basic tool for an interview are paper and two or three

well-sharpened pencils. But keep your notebook or paper out of sight until you need it. There‘s nothing less likely to relax a person than the arrival of someone with a note-taking pad. Both sort of person you‘re dealing with, getting him or her to trust you.

Never go into an interview without doing whatever homework you can. If you are interviewing a town official, know his voting record. If it‘s an actor, know what plays he has been in. You will not be liked if you inquire about facts that you could have learned in advance.

Many beginning interviewers are afraid that they are forcing the other person to answer questions and have no right to inquire about his personal secrets. This fear is almost 100 percent unnecessary. Unless the person really hates being interviewed, he is delighted that somebody wants to interview him. Most men and women lead lives that are uninteresting, and they grasp any chance to talk to an outsider who seems eager to listen.

This doesn‘t necessarily mean that it will go well. In general you will be talking to people who have never been interviewed before, and they will get used to the process awkwardly, perhaps not giving you anything that you can use. Come back another day; it will go better. You will both even begin to enjoy it–proof that you aren‘t forcing your victim to do something he doesn‘t really want to.

41.The word"reveal"(in line 4 of paragraph 1)could best be replaced by

A."ask"

B."question"

C."give"

D."seek"

42.According to the passage, during an interview notebooks or paper should

A.never be used

B.be used only when necessary

C.be kept at home

D.be given to the interviewee

43.The writer of the passage suggests that before interviewing a person, you should

A.have a good rest

B.visit a town official

C.meet an actor

D.make preparations

44.It can be inferred from paragraph 4 that most men and women

A.are afraid to meet interviewers

B.hate being interviewed

C.like being interviewed

D.fear to speak to outsiders

45.According to the passage, if a person being interviewed is too uneasy to give you anything useful, what should you do?

A.Arrange another interview

B.Give him or her a bad score

C.Wait until he or she calms down

D.Try to make him or her trust you

第5部分：补全短文(第46～50题，每题2分，共10分)

下面的短文有5处空白，短文后有6个句子，其中5个取自短文，请根据短文内容将其分别放回原有位置，以恢复文章原貌。

Conservation or Wasted Effort?

The black robin(旅鸫)is one of the world's rarest birds.It is a small，wild bird，and it lives only on the island of Little Mangere，off the coast of New Zealand.In 1967 there were about fifty black robins there;in 1977 there were fewer than ten.________(46).

Energetic steps are being taken to preserve the black

robin.________(47)The idea is to buy another island nearby as a special home，a "reserve"，for threatened wild life，including black robins.The organizers say that Little Mangere should then be restocked(重新准备) with the robin's food.Thousands of the required plants are at present being cultivated in New Zealand.

Is all this concern a waste of human effort? ________(48)Are we losing our sense of what is reasonable and what is unreasonable?

In the earth's long，long past hundreds of kinds of creatures have evolved，risen to a degree of success and died out.In the long，long future there will be many new and different forms of life.Those creatures that adapt themselves successfully to what the earth offers will survive for a long time.________(49)This is nature's proven method of operation.

The rule of selection--"the survival of the fittest"--is the one by which human beings have themselves arrived on the scene.We，being ode of the most adaptable creatures the earth has yet produced，may last longer than most.________(50).You may take it as another rule that when，at last.human beings show signs of dying out，no other creature will extend a paw(爪)to postpone our departure.On the contrary, we will be hurried out.

Life seems to have grown too tough for black robins.I leave you to judge whether we should try to do anything about it.

A. Some creatures，certain small animals，insects and birds，will almost certainly outlast (比……长久)man，for they seem even more adaptable.

B. Those that fail to meet the challenges will disappear early.

C. Detailed studies are going on，and a public appeal for money has been made.

D. Both represent orders in the classification of life

E. Is it any business of ours whether the black robin survives or dies out?

F. These are the only black robins left in the world

第6部分：完形填空(第51～65题，每题1分，共15分)

下面的短文有15处空白，请根据短文内容为每处空白确定一个最佳选项。

The Case of the Disappearing Fingerprints

One useful anti-cancer drug can effectively erase the whorls and other characteristic marks that give people their distinctive fingerprints.

Losing 51 become troublesome. A case released online in a letter by Annals of Oncology indicates how big a 52 of losing fingerprints is.

Eng-Huat Tan, a Singapore-based medical doctor describes a

62-year old man who has used capecitabine to 53 his nasopharyngeal cancer. After three years on the 54 , the patient decided to visit U.S. relatives last December. But he was stopped by U.S. customs officials 55 4 hours after entering the country when those officials couldn't get fingerprints from the man. There were no distinctive swirly 56 appearing from his index finger.

U.S. customs has been fingerprinting incoming foreign visitors for years, Tan says. Their index fingers are 57 and screened against digital files of the fingerprints of bad guys -- terrorists and potential criminals that our federal guardians have been tasked with keeping out of the country. Unfortunately, for the Singapore travelers, one potential 58 effect of his drug treatment is a smoothing of the tissue on the finger pads. 59 , no fingerprints.

"It is uncertain when fingerprint loss will 60 to take place in patients who are taking capecitabine," Tan points out. So he cautions any physicians who 61 the drug to provide their patients with a doctor's note pointing out that their medicine may cause fingerprints to disappear.

Eventually, the Singapore traveler made it into the United States. I guess the name on his passport didn't raise any red flags. But he's also now got the explanatory doctor's note – and won't leave home 62 it.

By the way, maybe the Food and Drug Administration, 63 approved use of the drug 11 years ago, should consider 64 its list of side effects associated with this medicine. The current list does note that patients may experience vomiting, stomach pain and some other side effects. But no where 65 it mention the potential for loss of fingerprints.

51. A. he B.them C.her D.him

52. A.theme B.topic C.creation D.problem

53. A.treat B.cut C.find D.smooth

54. A.recovery B.diet C.drug D.diagnosis

55. A.in B.at C.for D.on

56. A.digits B.marks C.images D.pictures

57. A.printed B.located C.cured D.placed

58. A.normal B.good C.main D.side

59. A.However B.Hence C.Moreover D.Furthermore

60. A.begin B.like C.decide D.have

61. A.prevent B.preserve C.presume D.prescribe

62. A.off B.on C.without D.with

63. A.who B.where C.when D.which

64. A.updating https://www.wendangku.net/doc/e010996852.html,ing C.printing D.cancelling

65. A.must B.does C.may D.should

参考答案

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2009年全国职称英语考试理工类B级题

第1：词汇选项（第1～15题，每题1分，共15分）

下面每个句子中均有1个词或短语划有横线，请为每处划线1个意义最为接近的选项

1Would you please call my husband as soon as possible?

A phone

B visit

C consult

D invite

2We had a long conversation about her parents.

A speech

B question

C debate

D talk

3The chairman proposed that we stop the meeting.

A stated Bannounced C suggested D demanded

4Obviously these people can be relied on in a crisis.

A depended on

B lived on

C believed in

D joined in

5There is always excitement at the Olympic Games when an athlete breaks a record.

A maintains

B beats

C matches

D tries

6All the pupils seem to be very cheerful.

A healthy

B happy

C naughty

D busy

7The traditional paintings are exhibited on the second floor.

A displayed

B laid

C kept

D tored

8She stood there, shaking with fury.

A misery

B laughter

C cry

D anger

9Mary evidently is the most diligent student among us

A intelligent

B beautiful

C hardworking

D talkative

10 Persistent attempts to interview Garbo were fruitless.

A Forceful

B Reasonable

C Firm

D Continuous

11 Why can't you stop your eternal complaining?

A long

B everlasting

C temporary

D boring

12 Hundreds of buildings were wrecked by the earthquake.

A damaged

B shaken

C fallen

D jumped

13 These paintings are considered by many to be authentic.

A faithful

B royal

C sincere

D genuine

14 Many economists have given in to the fatal lure of mathematics.

A simplicity

B attraction

C power

D rigor

15 Ten years after the event, her death still remains a puzzle

A mist

B fog

C secret

D mystery

第2：阅读判断（第16～22题，每题1分，共7分）

下面的短文后列出了7个句子，请短文的内容对每个句子判断：

该句的是信息，请选择A；该句的是错误信息，请选择

B；该句的信息文中提及，请选择C。

Radiocarbon Dating

Nowadays scientists can answer many questions about the past through a technique called radiocarbon (放射性碳), or carbon-14, dating. One key to understanding how and by something happened is to discover when it happened.

Radiocarbon dating was developed in the late 1940s by physicist Willard F. Libby at he University of Chicago. An atom of ordinary carbon, called carbon-12, has six protons(中子) and six neutrons (质子) in its nucleus. Carbon-14, or C-14, is a radioactive, unstable form of carbon that has two extra neutrons (原子核). It returns to a more stable form of carbon through a process called decay (衰减). This process involves the loss of he extra neutrons and energy from the nucleus.

In Libby's radiocarbon dating technique, the weak radioactive emissions (放射) from his decay process are counted by instruments such as a radiation detector and counter. he decay rate is used to determine the proportion of C-14 atoms in the sample being dated.

Carbon-14 is produced in the Earth's atmosphere when nitrogen (氮)-14, or N-14,interacts with cosmic rays (宇宙射线). Scientists believe since the Earth was formed, the mount of nitrogen in the atmosphere has remained constant. Consequently, C-14 formation is thought to occur at a constant rate. Now the ratio of C-14 to other carbon toms in the atmosphere is known. Most scientists agree that this ratio is useful for dating items back to at least 50,000 years.

All life on Earth is made of organic molecules (分子) that contain

carbon atoms coming from the atmosphere. So all living things have about the same ratio of C-14

atoms to other carbon atoms in their tissues (组织). Once an organism (有机体) dies it tops taking in carbon in any form, and the C-14 already present begins to decay. Over time the amount of C-14 in the material decreases, and the ratio of C-14 to other carbon toms goes down. In terms of radiocarbon dating, the fewer C-14 atoms in a sample, the older that sample is.

16Nowadays many scientists depend on radiocarbon for dating

age-old objects

A Right

B Wrong

C Not mentioned

17The radiocarbon dating technique is only about 40 years old

A Right

B Wrong

C Not mentioned

18An atom of ordinary carbon has six protons and eight neutrons

A Right

B Wrong

C Not mentioned

19Radar is used to determine the characteristics of radiocarbon

A Right

B Wrong

C Not mentioned

20Radiocarbon is reliable in dating an object back to at least 50,000 years.

A Right

B Wrong

C Not mentioned

21The C-14 in an organism begins to decay when it dies

A Right

B Wrong

C Not mentioned

22The half-life of C-14 is about 25,000 years.

A Right

B Wrong

C Not mentioned

第3：概括大意与句子（第23～30题，每题1分，共8分）下面的短文后有2项测试任务：（1）第23～26题要求从所给的6个选项

中为第1～4段每段1选择个最佳标题；（2）第27～30题要求从所给的6个

选项中为每个句子1个最佳选项。

Chimpanzees

1Chimpanzees (黑猩猩) will soon be extinct (灭绝). If the present rate of hunting and habitat (栖息地) destruction continues, then within 20 years, there will be no chimpanzees living in the wild. But this is more than an environmental or moral tragedy (悲剧). Chimpanzee extinction may also have profound implications (含意) for the survival of their distant relatives - human beings.

2In 1975 the biologist Marie-Claire King and Allan Wilson discovered that the human and chimpanzee genomes (基因组) match by over 98%. Compare this to the mouse, used as model for human disease in lab tests, which shares only 60% of its DNA with us. In fact, chimpanzees are far more similar to humans than they are to any other species of monkey. As well as resembling us genetically, chimps are highly intelligent and able to use tools. These facts alone should be enough to make protection of chimps an urgent priority (优先). But there is another, more selfish reason to preserve the chimp.

3The chimpanzees' trump card (王牌) comes in the field of medical research. Chimpanzees are so similar to humans that veterinarians (兽医) often refer to human medical textbooks when treating them. Yet chimpanzees do show differences in several key areas. In particular, chimps are much more resistant to a number of major diseases. It is this ability that is so interesting.

4For example, chimps seem to show a much higher resistance than humans to HIV, the virus that causes AIDS. Indeed, their use as experimental animals in AIDS research has declined because they are so resistant.

5By sequencing the chimp genome and pinpointing (找到) the place

where the chimpanzee DNA sequence differs from that of humans, scientists hope to be able to discover which part of the genetic code gives chimps their increased resistance to some diseases. This, they hope, will allow them to develop new and more effective treatments for the human forms of these diseases. Such treatments could include the

production of new drugs or even the alteration () of the human genetic sequence. The recently completed human genome sequencing project has shown that such an effort is now well within our reach.

23Paragraph 1

24Paragraph 2

25Paragraph 3

26Paragraph 4

A Genetic differences between chimps and humans

B Reasons for HIV resistance

C Implications of chimpanzee extinction for humans

D Effective AIDS treatment

E Genetic similarities between chimps and humans

F Chimps' resistance to HIV

27Chimpanzee extinction may affect

28There is a difference of less than 2% between the chimp and

29Scientists suspect that genes.PlaY a significant role in protecting chimps from getting

30The discovery of the genetic code of chimps will be helpful to

A healthier lifestyle

B some human disease treatments

C some diseases

D human survival

E human genomes

F key areas

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