大学四级-155及答案解析.doc

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1、大学四级-155 及答案解析(总分：717.10，做题时间：90 分钟)一、BPart Writing(总题数：1，分数：106.50)1.Directions: For this part, you are allowed 30 minutes to write an essay entitled Bow Gens. You should write at least U120/U words but no more than U180/U words following the outline given below.1低头族现象的出现令人担忧2沉湎于智能手机的危害包括3为了改变这种状况，

2、我认为（分数：106.50）_二、BPart Listenin(总题数：0，分数：0.00)三、BSection A/B(总题数：4，分数：106.50)Directions: 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 wi

3、ll be spoken only once. After each question there will be a pause. During the pause, you must read the four choices marked A, B, C and D, and decide which is the best answer.（分数：35.50）(1). A.A math teacher and his colleague. B.A teacher and his student. C.A student and his classmate. D.A librarian a

4、nd a student.（分数：7.10）A.B.C.D.(2). A.Tony could not continue the experiment. B.Tony finished the experiment last night. C.Tony thought the experiment was well done. D.Tony had expected the experiment to be easier.（分数：7.10）A.B.C.D.(3). A.She cant put up with the noise. B.She wants to save money to bu

5、y a piano. C.The present apartment is too expensive. D.She had found a job in a neighboring area.（分数：7.10）A.B.C.D.(4). A.He is not very enthusiastic about his English lessons. B.He has made great progress in his English. C.He is a student of the music department. D.He is not very interested in Engli

6、sh songs.（分数：7.10）A.B.C.D.(5). A.At home. B.In a restaurant. C.In a car. D.On the street.（分数：7.10）A.B.C.D.（分数：21.30）(1). A.His injury kept him at home. B.He didnt think it necessary. C.He was too weak to see the doctor. D.He failed to make an appointment.（分数：7.10）A.B.C.D.(2). A.5:15. B.5:10. C.4:30.

7、 D.5:00.（分数：7.10）A.B.C.D.(3). A.The man needs help. B.The man is complaining. C.The man likes his job. D.The man is talking with his boss.（分数：7.10）A.B.C.D.Questions 9 to 12 are based on the conversation you have just heard. （分数：28.40）(1). A.They are both talented singers. B.They are both popular amo

8、ng fans. C.Their voices make a good match. D.Their appearances make a good match.（分数：7.10）A.B.C.D.(2). A.Soft rock. B.Slow music. C.Love songs. D.Country music.（分数：7.10）A.B.C.D.(3). A.It displays a different singing style. B.It has some distinguishing features. C.It adapts to audiences different tas

9、tes. D.It brings out the best of the singers voice.（分数：7.10）A.B.C.D.(4). A.Make music part of your life. B.Share your happiness with others. C.Trust yourself before others trust you. D.Learn to interpret the power of music.（分数：7.10）A.B.C.D.Questions 13 to 15 are based on the conversation you have ju

10、st heard. （分数：21.30）(1). A.In a college bookstore. B.In a lecture hall. C.In a library. D.In a dormitory.（分数：7.10）A.B.C.D.(2). A.English. B.Biology. C.Introduction to English Literature. D.A required course.（分数：7.10）A.B.C.D.(3). A.He fives on the 10th floor of Butler Hall. B.He never wants to listen

11、 to students. C.He used to teach biology. D.He is an excellent professor.（分数：7.10）A.B.C.D.四、BSection B/B(总题数：0，分数：0.00)五、BPassage One/B(总题数：1，分数：21.30)Questions 16 to 18 are based on the passage you have just heard. （分数：21.30）(1). A.Because the bird couldnt repeat his masters name. B.Because the bir

12、d screamed all day long. C.Because the bird uttered the wrong word. D.Because the bird failed to say the name of the town.（分数：7.10）A.B.C.D.(2). A.The cruel master. B.The man in the kitchen. C.The pet bird. D.The fourth chicken.（分数：7.10）A.B.C.D.(3). A.The bird had finally understood his threat. B.The

13、 bird managed to escape from the chicken house. C.The bird had learned to scream back at him. D.The bird was living peacefully with the chickens.（分数：7.10）A.B.C.D.六、BPassage Two/B(总题数：1，分数：21.30)Questions 19 to 21 are based on the passage you have just heard. （分数：21.30）(1). A.They are kept in open pr

14、isons. B.They are allowed out of the prison grounds. C.They are ordered to do cooking and cleaning. D.They are a small portion of the prison population.（分数：7.10）A.B.C.D.(2). A.They are encouraged to do maintenance for the training center. B.Most of them get paid for their work. C.They have to cook t

15、heir own meals. D.They can choose to do community work.（分数：7.10）A.B.C.D.(3). A.Some of their prisoners are allowed to study or work outside prisons. B.Most of their prisoners are expected to work. C.Their prisoners are often sent to special centers for skill training. D.Their prisoners are allowed f

16、reedom to visit their families.（分数：7.10）A.B.C.D.七、BPassage Three(总题数：1，分数：28.40)Questions 22 to 25 are based on the passage you have just heard. （分数：28.40）(1). A.Because they have a driving license. B.Because they have received special training. C.Because the traffic conditions in London are good. D

17、.Because the traffic system of the city is not very complex.（分数：7.10）A.B.C.D.(2). A.Two to four months. B.About three weeks. C.At least half a year. D.Two years or more.（分数：7.10）A.B.C.D.(3). A.Government officers are hard to please. B.The learner has to go through several tough tests. C.The learner

18、usually fails several times before he passes it. D.The driving test usually lasts two months.（分数：7.10）A.B.C.D.(4). A.They dont want their present bosses to know what theyre doing. B.They want to earn money from both jobs. C.They cannot earn money as taxi drivers yet. D.They look forward to further p

19、romotion.（分数：7.10）A.B.C.D.八、BSection C/B(总题数：1，分数：78.10)Directions: In the section, you will hear a passage three times. When the passage is read for the first time, you should listen carefully for its general idea. When the passage is read for the second time, you are required to fill in the blanks

20、 with the exact words you have just heard. Finally, when the passage is read for the third time, you should check what you have written.Andrew Carnegie, known as the King of Steel, built the steel industry in the United States, and, in the process, became one of the wealthiest men in America. His su

21、ccess U U 1 /U /Upart from his ability to sell the product and in part from his policy of U U 2 /U /Udaring periods of economic decline, when most of his U U 3 /U /Uwere reducing their investments.Carnegie believed that individuals should progress through hard work, but he also felt strongly that th

22、e wealthy should use their fortunes U U 4 /U /Usociety. He opposed charity, instead, U U 5 /U /Uprovide educational opportunities that would allow others to help themselves. “He who dies rich, dies disgraced,“ he often said. Among his more noteworthy U U 6 /U /Uto society are those that bear his nam

23、e, including the Carnegie Institute of Pittsburgh, which has a library, a museum of fine arts, and a museum of national history. He also founded a school of U U 7 /U /Uthat is now part of Carnegie-Mellon University. Other philanthropic gifts are the Carnegie Endowment for International Peace to prom

24、ote understanding between nations, the Carnegie Institute of Washington to fund U U 8 /U /Uresearch, and Carnegie Hall to provide a center for the arts.Few Americans have been left U U 9 /U /Uby Andrew Carnegies generosity. His donations of more than five million dollars U U 10 /U /U2,500 libraries

25、in small communities throughout the country and formed the nucleus of the public library system that we all enjoy today. （分数：78.10）填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_九、BPart Reading (总题数：0，分数：0.00)十、BSection A/B(总题数：1，分数：35.50)Directions: In this section, th

26、ere is a passage with ten blanks. You are required to select one word for each blank .from a list of choices given in a word bank following the passage. Read the passage through carefully before making your choices. Each choice in the bank is identified by a letter. You may not use any of the words

27、in the bank more than once.Social change is more likely to occur in societies where there is a mixture of different kinds of people than in societies where people are similar in many ways. The simple reason for this is that there are more different ways of looking at things U U 1 /U /Uin the first k

28、ind of society. There are more ideas, more U U 2 /U /Uin interest, and more groups and organizations with different beliefs. In addition, there is usually a greater worldly interest and greater tolerance in U U 3 /U /Usocieties. All these factors tend to U U 4 /U /Usocial change by opening more as o

29、f life to decision. In a society where people are quite similar in many ways, there are fewer U U 5 /U /Ufor people to see the need or the opportunity for change because everything seems to be the same. And although conditions may not be U U 6 /U /U, they are at least customary and undisputed.Within

30、 a society, social change is also likely to occur more frequently and more U U 7 /U /Uin the material aspects of the culture than in the non-material, for example, in technology rather than in values; in what has been U U 8 /U /Ulater in life rather than what was learned early; in the less basic and

31、 less emotional aspects of society than in their opposite; in the simple elements rather than in the U U 9 /U /Uones; in form rather than in substance; and in elements that are U U 10 /U /Uto the culture rather than in strange elements.ApromoteBoccasionsCadditionallyDreadilyEacceptableFsatisfactoryG

32、complexHexhaustImixedJpresentKdisagreementsLdistinguishMspecializedNlearnedOsupplements（分数：35.50）填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_填空项 1:_十一、BSection B/B(总题数：1，分数：71.00)Directions: In this section, you are going to read a passage with ten statements attached to it. Each

33、statement contains information given in one of the paragraphs. Identify the paragraph from which the information is derived. You may choose a paragraph more than once. Each paragraph is marked with a letter. Sifting (详查) Through Genes in Search of Answers on EbolaAAn old two-story brick building in

34、a shabby part of town, formerly a distribution center for Budweiser beer, is now the worlds most powerful factory for analyzing genes from people and viruses. And it is a factory. At any given time, 10,000 tiny test tubes each holding a few drops of gene-containing fluid are being processed by six t

35、echnicians, working 24 hours a day, 365 days a year-two on the night shift-using 50 dishwasher- sized machines in two large rooms. The machines spit out sequence data onto a computer screen in the form of a long list, in order, of the letters that make up genetic material. That is three billion lett

36、ers if the genes are from a person. Another 64 technicians do the more labor-intensive work of preparing the samples for analysis.BIt is all in service of researchers who work for the Broad Institute, a gleaming, lavishly endowed genetics center a few blocks away. The sequencing center has worked on

37、 human DNA from an international effort, the 1,000 Genomes Project, that looks at the genes of thousands of people from around the world. It has gotten sequences of microbes, like dengue fever, malaria and West Nile virus. It has gotten genetic sequences from animals like chimpanzees.CAnd it is here

38、 that the group scientists studying Ebola and a similar deadly disease, Lassa, send their samples, taking advantage of what the centers manager, Andrew J. Hollinger, referred to as superfast track sequencing in their urgentwork on these diseases ravaging West Africa. Those scientists receive their s

39、equence data in about 40 hours, compared with days for the usual work.DThe Ebola and Lassa group, led by Pardis Sabeti, wants to know what the viruses look like. Do they mutate while they are infecting people, possibly evading the immune system? Are some strains more deadly than others? And what abo

40、ut the genetics of the people who are infected? Are some people more resistant, perhaps even immune, to these viruses because of tweaks in their own genes?EThe research is emblematic (象征的) of a new direction in public health, which uses powerful genetic methods and applies them to entire populations

41、. The aim is to get a detailed picture of disease epidemiology (流行病学), as the disease is happening. Armed with such data, doctors should be better able to stop epidemics and researchers can get clues to treating and preventing infections.FIn one of their first investigations, the group traced the st

42、art of the Ebola epidemic in Sierra Leone from a single funeral in May that ended up infecting 14 women. One person who had been at that funeral showed up at Kenema Government Hospital a few hours drive from the village where the funeral was held. “That first case was manageable,“ Dr. Sabeti said. B

43、ut several weeks after the funeral, there was a fear that an epidemic could have been sparked. The fear turned out to be true. “The virus was like a tidal wave coming into the country,“ Dr. Sabeti said.GSierra Leones department of health and safety sent epidemiologists to the remote village to trace

44、 the disease, asking who had been at the funeral and who had the funeral participants contacted. They found 14 ill with Ebola and an additional 35 people who tested negative for Ebola but had been exposed and had some symptoms.HDid they really have no virus in their bodies. That s where genetic sequ

45、encing provided an answer. “The government wanted to know if they were negative for real or was the diagnostic test just not picking Ebola up?“ Dr. Sabeti said. The blood from those people was sent to the Broad Institute, where any viral genetic material in it was sequenced. Those 35 were not infect

46、edthey had no Ebola virus in their blood. But the test found the virus in the blood of the 14 who had the disease.IAs the group examined the genetics of the Ebola viruses in different patients78 in the first few weeks of the outbreak in Sierra Leonethey noticed the virus was continually mutating, which raises questions about whether it could become airborne or more deadly. Dr. Sabeti said the mutations were not a su