大学英语六级-63及答案解析.doc

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1、大学英语六级-63 及答案解析(总分：710.00，做题时间：90 分钟)一、Part Writing(总题数：1，分数：106.50)1.1在大企业工作的特点;2在小企业工作的特点;3我的看法。（分数：106.50）_二、Part Listening Com(总题数：0，分数：0.00)三、Section A(总题数：4，分数：106.50)(1).A. He refused to drive her. B. He is glad to drive her.C. He forgot his driving license. D. He has a new car.（分数：7.10）A.B.C

2、.D.(2).A. She paid by check. B. She decided to make the purchase.C. She paid by credit card. D. She left without paying.（分数：7.10）A.B.C.D.(3).A. Call a friend. B. Work on his car. C. Take a taxi. D. Walk to work.（分数：7.10）A.B.C.D.(4).A. They will sail to San Francisco. B. They will fly to San Francisc

3、o.C. They will drive to San Francisco. D. They will take a train to San Francisco.（分数：7.10）A.B.C.D.(5).A. Its not important how he dances. B. Its too crowed to dance anyway.C. If hes careful, no one will notice. D. No one knows the steps to the dance.（分数：7.10）A.B.C.D.(1).A. Sailing a boat. B. Catchi

4、ng a worm. C. Fishing. D. Hanging clothes.（分数：7.10）A.B.C.D.(2).A. She doesnt like the film. B. The film is hard to understand.C. She saw the film from beginning to end. D. She only saw the last part of the film.（分数：7.10）A.B.C.D.(3).A. We learned that Mary is going to Hawaii. B. We learned that Mary

5、has traveled all over the world.C. We learned that Mary like postcards. D. We learned that Mary is going on vacation.（分数：7.10）A.B.C.D.(1).A. She doesnt want to pay the late fee. B. She was given incorrect information.C. She cant afford to pay her tuition. D. She didnt pass her mathematics class last

6、 semester.（分数：7.10）A.B.C.D.(2).A. The director couldnt give her an appointment right away.B. The office was closed the first time she went.C. The computers were out of service the first time she was there.D. She did not have acceptable identification with her on her first visit.（分数：7.10）A.B.C.D.(3).

7、A. Her prior schooling. B. Her residence. C. Her age. D. Her driving record.（分数：7.10）A.B.C.D.(4).A. The director probably isnt able to make an exception.B. The director probably wont see her.C. The director usually isnt very helpful.D. Part-time students arent the directors responsibility（分数：7.10）A.

8、B.C.D.(1).A. Chicago. B. New York. C. Boston. D. Detroit.（分数：7.10）A.B.C.D.(2).A. In a little while. B. First thing in the morning.C. Pretty quick. D. By 8:00.（分数：7.10）A.B.C.D.(3).A. An Elgin. B. A Rolex. C. A Seiko. D. A Bulova.（分数：7.10）A.B.C.D.四、Section B(总题数：0，分数：0.00)五、Passage One(总题数：1，分数：21.30)

9、(1).A. The meaning of facial expressions depends on situations.B. Facial expressions can cause misunderstanding across culture.C. People from one culture may lack facial expressions because they experience less emotion.D. Facial expressions may disguise true feelings.（分数：7.10）A.B.C.D.(2).A. They smi

10、le to cover embarrassment. B. It is an unusual and even suspicious behavior.C. They smile to show politeness. D. It is an expression of pleasure.（分数：7.10）A.B.C.D.(3).A. We shouldnt judge people by reading their faces.B. We shouldnt smile in the wrong place.C. We shouldnt cover our true feelings.D. W

11、e shouldnt express our emotions too openly.（分数：7.10）A.B.C.D.六、Passage Two(总题数：1，分数：21.30)(1).A. Separate houses were built for storing ice.B. Double walls were built in icehouses to keep cool.C. Blocks of ice were packed with weed in icehouses.D. Ice was put into icehouses in winter.（分数：7.10）A.B.C.D

12、.(2).A. The ice was cut and handled with the help of some special tools.B. The ice was taken from the flowing river with hooks and carried by sleds to icehouses.C. The ice was carried on the frozen surface of the pond or river.D. The ice was sawed into even blocks by workers.（分数：7.10）A.B.C.D.(3).A.

13、Ice Saws, choppers, axes, tongs, hooks. B. Ice Axes, saws, choppers, tongs, hooks.C. Choppers, axes, saws, hooks, tongs. D. Ice Axes, saws, choppers, hooks, tongs.（分数：7.10）A.B.C.D.七、Passage Three(总题数：1，分数：28.40)(1).A. To find out how much air can be pumped into a plane.B. To find out how much air pa

14、ssengers need to breathe at certain altitudes.C. To find what would happen if the plane crashed in the water.D. To find out if there are any weak parts in the plane that would burst under pressure.（分数：7.10）A.B.C.D.(2).A. Because the water pressure is greater than air pressure.B. Because the first Co

15、mets crashed in the water.C. Because there is less damage when the explosion takes place under water.D. Because it is the only way available for engineers to find out which part has cracked.（分数：7.10）A.B.C.D.(3).A. In the air. B. On the airfield.C. Under water. D. At plane manufacturing factory.（分数：7

16、.10）A.B.C.D.(4).A. Two important tests of a new airliner because it is put into use.B. How to carry out tank test in the water.C. How pilots carry out the test flights.D. How to make a safe passenger plane.（分数：7.10）A.B.C.D.八、Section C(总题数：1，分数：71.00)When we think of oil, the part of the world that c

17、omes to mind first may be the Middle East. But (26) development takes place worldwide. Nigeria, for example, is the largest oil producer in Africa and the eleventh largest producer in the world. Russia is the worlds (27) of oil and the top (28) of natural gas.In nineteen sixty Iran, Iraq, Kuwait, Sa

18、udi Arabia and Venezuela (29) the Organization of the Petroleum Exporting Countries. Its (30) may have reached a high point during the oil crisis (31) the nineteen seventy-three Arab-Israeli war. Arab oil producers (32) the United States, western Europe and Japan because of their support for Israel.

19、 Since then, new discoveries and increased production in areas including countries of the former Soviet Union have provided more oil. Today OPEC has twelve members. The newest is Angola which joined in 2007.High oil prices have brought new attention to OPEC. Its members produce about forty percent o

20、f the worlds oil. But two of the worlds top three oil exporters, Russia and Norway, are not OPEC members.National oil companies are (33) to control about eighty percent of the worlds oil supply. In recent years, rising oil prices have led more governments to act, either directly or indirectly, to (3

21、4) their oil industries.President Hugo Chavez has moved to nationalize oil operations in Venezuela. And in Russia, a series of actions resulted in state-owned companies gaining control of (35) held by Yukos. Yukos was Russias largest private company, until the government said it owed billions of dol

22、lars in taxes and jailed its founder, Russias richest man.（分数：71.00）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、Part Reading Compr(总题数：0，分数：0.00)十、Section A(总题数：1，分数：35.50)The mayor of County Club Hills helped arrest two men Wednesday night suspected in the random shootin

23、g a 15-year-old boy as he was leaving a basketball game at Hillcrest High School.County Club Hills Mayor Dwight Welch, who is also a (36) police officer, said he (37) up around 9:30 p. m. to the rear parking lot of the high school, 17401 Pulaski Td., after hearing radio (38) of someone firing severa

24、l shots at crowds leaving the game between Hillcrest and Rich Central High School. “It was pretty (39) because no one knew where the shots were coming from,“ Welch said later in a telephone (40) from his home. “Within five minutes of being there we got a report that a student was shot.“ Welch and on

25、-duty police Lt. Will Garrison found a 15-year-old Hillcrest student had suffered a graze (41) to the arm. They boy was taken in good condition to Advocate South Suburban Hospital in Hazel Crest, said town spokeswoman Wanda Comein. No one else was hit.In Welchs police car, they began (42) the area f

26、or a white jeep that had fled the scene south on Winston Drive following the shooting, the mayor said.“We stayed back and turned around and waited for them. Then we saw the suspects car coming head-on,“ Welch said. “We curbed their (43) . We came close to crashing.“ Once the car was stopped, Welch a

27、nd the lieutenant got out of their vehicle and drew their service weapons, (44) the two occupants out of their vehicle, he said. Inside, they found a revolver next to an empty bottle of (45) , according to Welch.A. wound B. journalists C. certified D. ordering E. chaoticF. scouring G. employer H. li

28、quor I. vehicle J. employeeK. lie down L. pulled M. reports N. interview O. suspect（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、Section B(总题数：1，分数：71.00)HIV 60 to 70% of those are in SubSaharan Africa. But the disease is spreading in every region, with fierce ep

29、idemics threatening to tear through countries such as India, China, Russia and the islands of the Caribbean. The statistics are soberingin some Southern African towns 44% of pregnant women are HIV positive, in Botswana 37% of people carry the virus.C The human immunodeficiency virus (HIV) is a retro

30、virusa virus built of RNA instead of more typical DNA. It attacks the very cells of the immune system that should be protecting the body against itT lymphocytes and other white blood cells with CD4 receptors on their surfaces. The virus uses the CD4 receptor to bind with and thereby enter the lympho

31、cyte. HIV then integrates itself into the cells own DNA, turning the cell into a virus-generating factory. The new viruses break free, destroying the cell, then move on to attack other lymphocytes.D HIV kills by slowly destroying the immune system. Several weeks after initial infection, flu-like sym

32、ptoms are experienced. Then the immune system kicks-in, and the virus mostly retreats into hiding within lymph tissues. The untreated, infected individual usually remains healthy for 5 to 15 years, but the virus continues to replicate in the background, slowly obliterating the immune system. Eventua

33、lly the body is unable to defend itself and succumbs to overwhelming opportunistic infections that rarely affect healthy people. Acquired Immune Deficiency Syndrome (AIDS) is the name given to this final stage of HIV infection, and is characterized by multiple, life-threatening illnesses such is wei

34、ght loss, chronic diarrheoa, rare cancers, pneumonia, fungal conditions and infections of the brain and eye. Tuberculosis has become especially prevalent in AIDS victims.E Genetic analyses hint that ancestral primate HIV may have been born a million years ago when a chimpanzee virus hybridized (杂交)

35、with a related monkey variety. However researchers believe it was not until the 1930s that this jumped to humans eating chimp meat in Central Africa. That variety became HIV-1the most widespread type. A second type, HIV-2, restricted to West Africa, was probably contracted in the 1960s from monkey m

36、eat. Another theory was that the AIDS pandemic was accidentally started by doctors testing a polio vaccine in the 1950sdetailed in Edward Hoopers book The Riverbut this has been severely criticized by other researchers.F AIDS must have been circulating in the US and Africa during the 1970s. But it w

37、as not recognized until 1981 when young gay men and injecting drug users, in New York and California, started to be diagnosed with both an unusual skin cancer called Kaposis sarcoma, and lethal pneumonias. By the end of that year 121 people in the US had diedthat number would rise to 17,000 over the

38、 next six years. Government scientists predicted that the mysterious immune-debilitating illness was due to an infectious agent. In 1984 that agent was identified as HIV by Luc Montagnier of the Pasteur Institute in Paris, France, and Robert Gallo of the National Cancer Institute in Washington DC, U

39、S.G Soon after the appearance of AIDS in the US, the disease was detected in Europe too and epidemics affecting heterosexual men and women sprang up at an alarming rate in Sub-Saharan Africa. Today one in five people in that region are living with the virus. AIDS epidemics also threaten to devastate

40、 the worlds most populous nationsIndia and Chinaif action is not taken to bring them under control.H HIV is found in body fluids such as: blood, semen, vaginal fluids and breast milk. It can be passed on through sharing contaminated needles when injecting street drugs or in hospitals. It can also be

41、 transmitted from a mother to her baby during pregnancy, childbirth or breastfeedingthough many children escape infection. HIV cannot be passed on through kissing, coughing, mosquito bites or touching.I Health authorities are focusing on prevention as a key method to limit the spread of the epidemic

42、. Educational programs preach abstinence from sex, monogamy and safer sex using condoms, as ways to protect against infection. Many countries give away free condoms and offer needle exchange programs to try and limit transmission among injecting drug users. Microbicides in the form of creams that pr

43、event transmission of HIV may soon offer another method of protection.J A vaccine, as an alternative method to prevent HIV infection, may still be many years away. This is partly because the virus mutates so rapidly. A vaccine may not only have to prime antibodies to attack the virus (the way most v

44、accines work) but might also need to increase T-cell production. Vaccine trial; have been undertaken in South Africa, Kenya, the US and Thailandthough most have yet to yield promising results. Controversial vaccines made from the blood of HIV carriers, have been tested is Nigeria and Thailand.K Ther

45、e is no cure for AIDS, but a range of drugssome of which have unpleasant side-effectsare available to slow its progress. Other drugs are used to treat opportunistic infections or AIDS symptoms. Even some herbal treatments have been investigated. Most anti-HIV drugs aim at stalling viral replication.

46、 Nucleoside analogues such as AZT (zidovudine) and also non-nucleoside reverse transcriptase inhibitors (NNRTIs) (非核苷类逆转酶抑制剂), attack the action of the viral enzyme reverse transcriptase. This prevents it from creating functional DNA which would otherwise integrate into the DNA of infected cells.L A

47、 third class block protease, an enzyme essential for generating functional virus particles. Protease inhibitors are the most effective of the three types of drugs, and AIDS mortality fell dramatically in the US when they were first licensed during the late 1990s. Fusion inhibitors are a newer type o

48、f drug that work by stopping HIV from binding with CD4 receptors that it uses to enter cells. Drugs that block another enzyme, integrase (整合酶), are also under development.M AIDS drugs are often administered in combination cocktails of three or more kinds simultaneously, as this helps slow the rate at which HIV develops resistance to drugs. But the virus is able to evolve rapidly and can eventual