大学六级-47及答案解析.doc

1、大学六级-47 及答案解析(总分：632.00，做题时间：90 分钟)一、BPart Writing(总题数：1，分数：106.00)1.假设你是李明，假期即将到来，你打算做一次为期三天的旅行，希望找个外国朋友作为游伴(Travel-mate)。拟一个寻游伴的启示，交代清楚日程安排、费用分担情况、对对方的要求等，并说明对方和你一起出游的好处。Travel-mate Wanted_（分数：106.00）_二、BPart Reading (总题数：1，分数：70.00)Directions: In this part, you will have 15 minutes to go over the

2、 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 the sentences with the information given in the passage.America Remains at Risk-From ItselfAmericans can be excused for thin

3、king that terrorism is largely behind them. Eight-plus years after the 9/11 attacks, Al Qaeda has yet to strike the United States again. Airport screening seems routine and more relaxed, and anxieties over employment, mortgages, and health care have supplanted worries about anthrax and suicide bombe

4、rs.Were Americans fears of terrorism ever justified? Or more hype than reality? The answer is complicated. Al Qaeda and its imitators were and remain committed to attacking the United States. Yet theyve demonstrated a very limited capacity for doing so. The ranks of what U.S. intelligence agents cal

5、l “Al Qaeda Central“ have been thinned through many successful kills and captures, and the remaining leaders are now holed up in Pakistan. Although there is a growing number of Qaeda-inspired groups at large, the presence of actual Qaeda operatives on U.S. soil was tiny on 9/11-and was essentially e

6、liminated in the attacks of that day.Still, U.S. officials are not imagining things when they say, as Homeland Security Secretary Janet Napolitano did in July, that “the terror threat to the homeland is persistent and evolving. “ The September 2009 arrest in New York of Najibullah Zazi makes that cl

7、ear. That said, its important to retain perspective about the probability and the consequence of potential attacks. Zazis arrest is an important reminder that today terrorists are hardly infallible. For example, when he tried his hand at bomb making in the United States, he was quickly tipped off to

8、 authorities by a Denver store clerk. Meanwhile, the average American remains far more likely to be a victim of a hurricane, earthquake, or wildfire than a suicide bombing. Add H1N1, avian flu, and SARS to the list and there are few plausible terrorist scenarios that can go head-to-head with Mother

9、Nature.But that doesnt mean no threat remains. A 2008 survey of 100 U.S. foreign-policy experts found that nearly two thirds think a catastrophic attack is likely within the next five years. Yet the greatest threat today is not an attack but the risk the country would overreact. Major national traum

10、as dont always bring out the best in the U.S. government-at least at first. Pearl Harbor led, among other things, to the internment of Japanese-Americans. In the wake of 9/11, Washington grounded all airplanes and effectively closed its borders, thereby doing, at least for a short period, what no ad

11、versary could: blockade the U.S. economy.Today the dangers that the United States would overreact are arguably greater than they were on 9/11. Thats thanks to the Bush administration. In his farewell address, Bush claimed that his most important legacy was that there had been no more attacks on his

12、watch. In a series of postdeparture interviews, former vice president Dick Cheney has blamed Democrats for putting Americans at risk by wanting to close Guantanamo and limit harsh interrogation techniques. In the process, theyve set up a dynamic that provides the Obama administration with little wig

13、gle room if an attack does come. Theyre likely to embrace tough security measures in order to face down accusations that theyve lowered the nations guard.There is one way to avoid this scenario, and it involves ditching the muscular but unrealistic “protection at all costs“ approach. A constant refr

14、ain heard during the Bush years was that while terrorists need to get things fight just once, the nations defenders have to be right 100 percent of the time. This set an impossible standard. There is no precedent of any government ever getting anything right all the time, and U.S. efforts have been

15、far from flawless. Success in combating terrorism requires timely and accurate intelligence, and Americas intelligence services are a long way from effectively recalibrating themselves to meet this imperative. Bureaucratic battles continue, and the CIA still has too few spies. U.S. borders are not a

16、nd never will be impermeable.The Bush approach also (with its bombastic rhetoric and prisoner-abuse scandals ) played into anti-American narratives and sidelined the nations most important asset by telling ordinary citizens to leave terrorism to the professionals. That was a reckless mistake, for ne

17、arly every successful thwarting of terrorist activity on U.S. soil relied on civilians. Remember that on 9/11 it was the passengers on United Flight 93 that prevented Al Qaeda from striking the U.S. Capitol or the White House.Terrorism will remain attractive to Americas enemies so long as they can b

18、e confident it will generate a big bang for a small buck. Deterring attacks thus requires two things: improving Americas ability to detect and intercept terrorist activity and reducing the likelihood that the nation would overreact.By treating terrorism as a hazard to be managed by all Americans, te

19、rrorism can also be starved of its ability to generate dread, panic, and paralysis. Terror works only if it convinces people they are vulnerable and powerless. By being candid with the American people about the threat they face and by giving Americans ways to address their vulnerabilities-such as pr

20、oviding detailed guidance on what suspicious activities to report and encouraging citizens to get emergency preparedness training-Washington could make terrorism far less terrifying.Instead of feeding Americans a diet of alerts they ignore, the Obama administration should continue reminding them tha

21、t they are and must be a resilient people. Washington should ask citizens to share the responsibility for preparing the nation to cope with the man-made and natural disasters, for example by expanding funding for the Citizens Corps program. When individuals and communities are better able to withsta

22、nd, recover, and adapt to catastrophic risks, terrorism will become more like the common cold: a new strain may emerge each season, but it will have little effect on the nations daily life.（分数：70.00）(1).What did Homeland Security Secretary Janet Napolitano say in July? A. Americans neednt worry abou

23、t the terrorism. B. Al Qaeda in America was essentially eliminated. C. The terrorism to America was persistent. D. He couldnt imagine what Al Qaeda would do next.（分数：7.00）A.B.C.D.(2).What does the September 2009 arrest in New York of Najibullah Zazi imply? A. There is no terrorism on the U.S. soil a

24、ny more. B. Terrorists can hardly attack America successfully again. C. The government is capable of beating the terrorism. D. It is still important to be alert for potential attacks.（分数：7.00）A.B.C.D.(3).The average people are still less probably beaten by A. natural hazards B. suicide bombing C. av

25、ian flu D. SARS（分数：7.00）A.B.C.D.(4).What is the greatest threat to America according to the passage? A. Americans fears of terrorism. B. Strongly potential attacks. C. Excessive reaction to the attacks. D. American weak defenders.（分数：7.00）A.B.C.D.(5).What is the authors attitude towards the Bush adm

26、inistration? A. Negativity. B. Neutrality. C. Support. D. Appreciation.（分数：7.00）A.B.C.D.(6).The dangers of the overreaction of Obama administration would be greater, because _ A. there were no attacks during the Bush administration B. Democrats throw America into predicament C. it will be in awkward

27、 position if attacks come D. it plans to defeat the comment on security guard（分数：7.00）A.B.C.D.(7).According to the passage, what is demanded for the successful battle with terrorism? A. Impermeable borders. B. Timely and accurate information. C. Bureaucratic battle. D. Few spies.（分数：7.00）A.B.C.D.(8)

28、The author thinks that every successful battle with terrorists must depend on _（分数：7.00）填空项 1:_(9).According to the passage, terror plays its role only when carriers think they are _（分数：7.00）填空项 1:_(10).According to the author, Obama administration should ask citizens to stand up together to deal w

29、ith _（分数：7.00）填空项 1:_三、BPart Listenin(总题数：0，分数：0.00)四、BSection A/B(总题数：4，分数：105.00)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 questi

30、ons will 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. Then mark the corresponding letter on Answer Sheet 2 with a single line through the center.（分数：35.00）(1). A. Her dorrn

31、is messy. B. She cleaned the library. C. She didnt clean the dorm. D. She will help the man clean his dorm.（分数：7.00）A.B.C.D.(2). A. Nervous. B. Uninterested. C. Confident. D. Upset.（分数：7.00）A.B.C.D.(3). A. Monday. B. Tuesday. C. Wednesday. D. Thursday.（分数：7.00）A.B.C.D.(4). A. Jack is likely to help.

32、 B. The man has already asked Jack for help. C. Jack doesnt know a lot about the problem. D. Jack was the last one who could solve the problem.（分数：7.00）A.B.C.D.(5). A. 4. B. 5. C. 6. D. 7.（分数：7.00）A.B.C.D.（分数：21.00）(1). A. They have a dog. B. They have no right to complain. C. They dont like good mu

33、sic. D. They are his good friends.（分数：7.00）A.B.C.D.(2). A. She will go to the cinema. B. She has to read a report. C. She has to work. D. Shed rather stay home.（分数：7.00）A.B.C.D.(3). A. They had previously planned to go boating. B. They had previously planned to play golf. C. They had previously plan

34、ned to go cycling. D. They had previously planned to play tennis.（分数：7.00）A.B.C.D.Conversation One Questions 19 to 21 are based on the conversation you have just heard. （分数：21.00）(1). A. Bacon. B. Mushrooms. C. Italian chicken. D. Pineapple.（分数：7.00）A.B.C.D.(2). A. Pepperoni and green peppers on one

35、 half and Italian sausage and black olives on the other. B. Pepperoni and Italian sausage on one half and green peppers and bacon on the other. C. Pepperoni and mushrooms on one half and green peppers and Italian sausage on the other. D. Pepperoni and Italian sausage on one half and green peppers an

36、d pineapple on the other.（分数：7.00）A.B.C.D.(3). A.A salad and orange juice. B. Bread sticks and a beverage. C. A drink and chicken sticks. D. A salad and chicken sticks.（分数：7.00）A.B.C.D.Conversation Two Questions 23 to 25 are based on the conversation you have just heard. （分数：28.00）(1). A. He found D

37、r. Carters number in the phone book. B. He saw the office on his way to somewhere. C. A friend referred him to Dr. Carters office. D. His neighbor referred him to Dr. Carters office.（分数：7.00）A.B.C.D.(2). A. Friday. B. Thursday. C. Tuesday. D. Wednesday.（分数：7.00）A.B.C.D.(3). A. He brunt his knees whe

38、n a tall ladder fell on him. B. He injured his ankle when he fell from a ladder. C. He sprained his hands when he fell offthe roof this ends after a few months, after which the hair is shed to allow new growth. A daily loss of 50 to 200 hairs is a normal part of the cycle.Although baldness is U U 3

39、/U /Uby hormonal factors, it tends to rtm in families; your risk may be U U 4 /U /Ufrom the number of bald males among members of both parents families. U U 5 /U /UI hair loss may be U U 6 /U /Uby metabolic disorders (including diabetes, thyroid disease, and crash diets); damage to hair shafts cause

40、d by harsh treatments; stress brought on by illness; hormonal changes of U U 7 /U /UI.; medical treatment, including cancer chemotherapy; and very U U 8 /U /Uscalp disorders.U U 9 /U /U, biotin, zinc, or protein. Such deficiencies are rare, although an excessive intake of raw egg whites can lead to

41、a depletion of biotin.The only medicines for baldness are minoxidil (Rogaine), a topical medicine, and finasteride (Propecia), an oral prescription drug. U U 10 /U /UHair that falls out during a crash diet soon regrows once nutrition retums to normal. U U 11 /U /U （分数：77.00）填空项 1:_填空项 1:_填空项 1:_填空项

42、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:_七、BPart Reading (总题数：0，分数：0.00)八、BSection A/B(总题数：1，分数：45.00)Directions: In this section, there is a short passage with 5 questions or incomplete statements. Read the passage carefully. Then answer the questions or complete the statements in the fe

43、west possible words on Answer Sheet 2.Scientists say they have high hopes for a drug that could one day provide a new form of treatment for HIV-AIDS. A compound, which interferes with an elusive protein used by the HIV virus to infect human cells, has worked extremely well in monkeys. If the drug pr

44、oves effective in human trials, scientists say, it could bolster (加强) the effectiveness of two existing AIDS drugs, particularly in fighting drug-resistant strains of the virus.Researchers at the pharmaceutical(制药的) company Merck are very excited about an experimental drug, which has worked as well

45、in monkeys infected with a primate version of the virus as any of the existing anti-AIDS drugs.It works by blocking one of three proteins, or enzymes, the HIV virus uses to gain entrance into and infect human immune system cells.Inhibitor drugs have been developed to block two of the proteins, to sl

46、ow progression of the disease after infection. They have become standard therapy as a “cocktail“ for people infected with HIV.Those enzymes are reverse transcriptase (转录酶) and protease (蛋白酶).The first converts the virus genetic material into that of its host cells. The second chops up the resulting

47、larger proteins into smaller pieces, producing smaller viral particles that infect new cells.The third prong of cellular attack is a protein called integrase(整合酶), which experts say has been harder to block. Once HIV fools host cells by changing its genetic information so it can enter them, integrase acts like a cut and paste operation in a word processor, deleting an immune cells genetic material and replacing it with its own.An integrase inhibitor would