大学英语六级真题及答案详解Word文档下载推荐.docx

1、 Part Reading Comprehension（Skimming and Scanning）（15 minutes）Directions: In this part, you will have 15 minutes to go over the passage quickly and answer the questions on Answer Sheet 1 For questions 1-7,choose the best answer from the four choices marked A）,B）,C）and D. For questions 8-10,complete

2、the sentences with the information given in the passage.What will the world be like in fifty years?This week some top scientists, including Nobel Prize winners, gave their vision of how the world will look in 2056,fron gas-powered cars to extraordinary health advances, John Ingham reports on what th

3、e worlds finest minds believe our futures will be.For those of us lucky enough to live that long,2056 will be a world of almost perpetual youth, where obesity is a remote memory and robots become our companions.We will be rubbing shoulders with aliens and colonizing outer space. Better still, our de

4、scendants might at last live in a world at peace with itself.The prediction is that we will have found a source of inexbaustible, safe, green energy, and that science will have killed off religion. If they are right we will have removed two of the main causes of war-our dependence on oil and religio

5、us prejudice.Will we really, as todays scientists claim, be able to live for ever or at least cheat the ageing process so that the average person lives to 150?Of course, all these predictions come with a scientific health warning. Harvard professor Steven Pinker says: “This is an invitation to look

6、foolish, as with the predictions of domed cities and nuclear-powered vacuum cleaners that were made 50 year ago.”Living longerAnthony Atala, director of the Wake Forest Institute in North Carolina, belives failing organs will be repaired by injecting cells into the body. They will naturally to strai

7、ght to the injury and help heal it. A system of injections without needles could also slow the ageing process by using the same process to “tune” cells.Bruce Lahn, professor of human genetics at the University of Chicago, anticipates the ability to produce“unlimited supplies” of transplantable human

8、 organs without the needed a new organ, such as kidney, the surgeon would contact a commercial organ producer, give him the patients immuno-logical profile and would then be sent a kidney with the correct tissue type.These organs would be entirely composed of human cells, grown by introducing them i

9、nto animal hosts, and alloweing them to deveoop into and organ in place of the animals own. But Prof. Lahn believes that farmed brains would be “off limits”.He says: “Very few people would want to have their brains replaced by someone elses and we probably dont want to put a human brain ing an anima

10、l body.”Richard Miller, a professor at the University of Michigan, thinks scientist could develop“an thentic anti-ageing drugs” by working out how cells in larger animals such as whales and human resist many forms of injuries. He says:“Its is now routine, in laboratory mammals, to extend lifespan by

11、 about 40%. Turning on the same protective systems in people should, by 2056, create the first class of 100-year-olds who are as vigorous and productive as todays people in their 60s”AliensConlin Pillinger ,professor of planerary sciences at the Open University,says:”I fancy that at least we will be

12、 able to show that life didi start to evolve on Mars well as Earth.”Within 50years he hopes scientists will prove that alien life came here in Martian meteorites（陨石）.Chris McKay,a planetary scientist at NASAs Ames Research Center.believes that in 50 years we may find evidence of alien life in ancien

13、t permanent forst of Mars or on other planers.He adds:”There is even a chance we will find alien life forms here on Earth.It mightbe as different as English is to Chinese.Priceton professor Freeman Dyson thinks it “likely” that life form outer space will be discovered defore 2056 because the tools f

14、or finding it, such as optical and radio detection and data processing,are improving.He ays:”As soon as the first evidence is found,we will know what to look for and additional discoveries are likely to follow quickly.Such discoveries are likely to have revolutionary consequences for biology, astron

15、omy and philosophy. They may change the way we look at ourselves and our place in the universe.Colonies in spaceRichard Gottprofessor of astrophysics at Princeton,hopes man will set up a self-sufficient colony on Mars,which would be a “life insurance policy against whatever catastrophes,natural or o

16、therwise,might occur on Earth.“The real space race is whether we will colonise off Earth on to other worlds before money for the space programme runs out.”Spinal injuriesEllen Heber-Katz,a professor at the Wistar Institude in Philadelphia,foresees cures for inijuries causing paralysis such as the on

17、e that afflicated Superman star Christopher Reeve.She says:”I believe that the day is not far off when we will be able to profescribe drugs that cause severes（断裂的） spinal cords to heal,hearts to regenerate and lost limbs to regrow.“People will come to expect that injured or diseased organs are meant

18、 to be repaired from within,inmuch the same way that we fix an appliance or automobile:by replancing the damaged part with a manufacturer-certified new part.”She predict that within 5 to 10 years fingers and toes will be regrown and limbs will start to be regrown a few years later. Reparies to the n

19、ervous system will start with optic nerves and,in time,the spinal cord.”Within 50years whole body replacement will be routine,”Prof.Heber-Katz adds.ObesitySydney Brenner,senior distinguished fellow of the Crick-Jacobs Center in California,won the 2002 Noblel Prize for Medicine and says that if there

20、 is a global disaster some humans will survive-and evolition will favour small people with bodies large enough to support the required amount of brain power.”Obesity,”he says.”will have been solved.”RobotsRodney Brooks,professor of robotice at MIT,says the problems of developing artificial intellige

21、nce for robots will be at least partly overcome.As a result,”the possibilities for robots working with people will open up immensely”EnergyBill Joy,green technology expert in Califomia,says:”The most significant breakthrought would be to have an inexhaustible source of safe,green energy that is subs

22、tantially cheaper than any existing energy source.”Ideally,such a source would be safe in that it could not be made into weapons and would not make hazardous or toxic waste or carbon dioxide,the main greenhouse gas blamed for global warming. Society Geoffrey Miller,evolutionary psychologist at the U

23、niversity of New Mexico,says:”The US will follow the UKin realizing that religion is nor a prerequisite （前提）for ordinary human decency. “This,science will kill religion-not by reason challenging faith but by offering a more practical,uniwersal and rewarding moral frameworkfor human interaction.” He

24、also predicts that “ahsurdly wasteful”displays of wealth will become umfashionable while the importance of close-knit communities and families will become clearer. These there changer,he says,will help make us all”brigheter,wiser,happier and kinder”.此部分试题请在答题卡1上作答。1.What is john lnghams report about

25、?A）A solution to the global energy crisisB）Extraordinary advances in technology.C）The latest developments of medical scienceD）Scientistsvision of the world in halfa century2. According to Harvard professor Steven Pinker,predictions about the future_. A）may invite trouble B）may not come true C）will f

26、ool the public D）do more harm than good3. Professor Bruce Lahn of the University of Chicago predicts that_. A）humans wont have to donate organs for transplantation B）more people will donate their organs for transplantation C）animal organs could be transplanted into human bodies D）organ transplantati

27、on wont be as scary as it is today4. According to professor Richard Miller of the University of Michigarr, prople will_. A）life for as long as they wish B）be relieved from all sufferings C） life to 100 and more with vitality D）be able to live longer than whales5.Priceton professor Freeman Syson thin

28、ks that_.A）scientists will find alien life similar to oursB）humans will be able to settle on MarsC）alien life will likely be discoveredD）life will start to evolve on Mars6.According to Princeton professor Richard Gott,by setting up a self-sufficient colony on Mars,Humans_.A）Might survie allcatastrop

29、hes on earthB）Might acquire ample natural resourcesC）Will be able to travel to Mars freelyD）Will move there to live a better life7.Ellen Heber-Katz, professor at the Wistar Institue in Philadelpia,predicts that_.A）human organs can bu manufactured like appliancesB）people will be as strong and dymamic

30、 as supermenC） human nerves can be replanced by optic fibersD）lost fingers and limbs will be able to regrow8.rodney Brooks says that it will be possible for robots to work with humans as a result or the development of_artificaial intelligence for robots_9. The most significant breakthrough predicted

31、 by Bill joy will be an inexhaustible green energy source that cant be used to make_pollutions_10 According to Geoffrey Miller, science will offer a more practical, universal and rewarding moral framework in place of _religion_Part III Listening Comprehension （35minutes）Section A In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questions will be asked about what was said. Both the conversation and the questions will be spoken only once. After each question th