大学英语六级-68及答案解析.doc

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1、大学英语六级-68 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现在大学课堂及讲座上常见的现象：态度不认真、睡觉、发短信及出勤率低2列举原因。大学课堂的出勤率是否应该采取自愿而非强制呢?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. Be hostile to Nancy. B. Ask Nancy to come out.C. Talk to Nancy herself. D. Write

2、 Nancy a letter.（分数：7.10）A.B.C.D.(2).A. They should meet another time this week.B. She wont be busy this week.C. She is angry that the man doesnt wait for her.D. There wont be another time available for them in this week to meet.（分数：7.10）A.B.C.D.(3).A. He liked to drink two cups of coffee before the

3、 professors class.B. One cup of coffee is enough for him to keep awake in the class.C. The professors class is very interesting.D. The professors class is very boring.（分数：7.10）A.B.C.D.(4).A. Everyone enjoyed himself at Johns parties.B. The woman didnt enjoy Johns parties at all.C. It will be the fir

4、st time for the man to attend Johns party.D. The woman is glad to be invited to Johns house-warming party.（分数：7.10）A.B.C.D.(5).A. She hasnt seen her sister for years.B. She has no time to see her sister.C. She is eager to go back to Colorado for the scene.D. She is so busy that she has no time to cl

5、imb the mountain.（分数：7.10）A.B.C.D.(1).A. He will take part in the party.B. He will continue to study in the bedroom.C. He will continue to study in the dinning room.D. He will go to have dinner instead of studying.（分数：7.10）A.B.C.D.(2).A. The location of the session has been changed.B. She will defin

6、itely go to the session this evening.C. Shell probably be too tired to walk to the session.D. The session might be canceled because of a heavy snow.（分数：7.10）A.B.C.D.(3).A. He thinks it is difficult to get fuel for the car.B. He can manage to get the gasoline they need.C. He doesnt think it necessary

7、 to refuel the car.D. He hopes the woman will help him select a fuel.（分数：7.10）A.B.C.D.(1).A. She is writing a competitive paper for a scholarship.B. She is doing a research paper.C. She missed the lecture.D. She is planning to attend the scholarship award ceremony.（分数：7.10）A.B.C.D.(2).A. Why species

8、 dont avoid extinction by adapting.B. Why species become extinct at the rate they do.C. Why humans arent extinct.D. How many species arent extinct.（分数：7.10）A.B.C.D.(3).A. Because every species becomes extinct.B. Because humans beings are powerful enough to kill other species.C. Because of over-popul

9、ation.D. Because though human being is still a young species, it is exploiting the environment.（分数：7.10）A.B.C.D.(4).A. He thinks flies will take over the earth.B. He thinks human will die off quite soon.C. He thinks mass disease could be the next path to extinction.D. He sees human beings as destruc

10、tive.（分数：7.10）A.B.C.D.(1).A. They left their pets with neighbors.B. They rented their house to a student.C. They hired someone to stay in their home.D. They asked their gardener to watch their house.（分数：7.10）A.B.C.D.(2).A. They look at a house sitters score report.B. They interview a house sitters f

11、riends.C. They check a house sitters references.D. They attend a house sitters party.（分数：7.10）A.B.C.D.(3).A. The homeowner is afraid of being accused.B. The house sitter pleads again and again.C. Most house sitters are very poor.D. The homeowner doesnt want to bother.（分数：7.10）A.B.C.D.四、Section B(总题数

12、：0，分数：0.00)五、Passage One(总题数：1，分数：21.30)(1).A. The US should catch up to European environmental standards.B. American exporters must adapt to new regulations in Europe.C. The US should be more sensitive to environmental issues.D. The EUs new regulations are a burden.（分数：7.10）A.B.C.D.(2).A. Their pac

13、kaging of exports have to conform to EU regulations.B. They have to cut out waste completely.C. They must have an experienced distributor.D. They will see expensive rise.（分数：7.10）A.B.C.D.(3).A. It will allow fewer trees to be cut. B. It will require less labor costs.C. It saves some shipping costs.

14、D. It will make them more competitive.（分数：7.10）A.B.C.D.六、Passage Two(总题数：1，分数：28.40)(1).A. Students from America. B. Students from England.C. Students from Australia. D. Students from Japan.（分数：7.10）A.B.C.D.(2).A. Those who know how to program computers.B. Those who get special aid from their teache

15、rs.C. Those who are very hardworking.D. Those who have well-educated parents.（分数：7.10）A.B.C.D.(3).A. Japanese students study much harder than Columbian students.B. Columbian students score higher than Japanese students in math.C. Columbian students are more optimistic about their math skills.D. Japa

16、nese students have better conditions for study.（分数：7.10）A.B.C.D.(4).A. Physics. B. Mathematics.C. Environmental science. D. Life science.（分数：7.10）A.B.C.D.七、Passage Three(总题数：1，分数：21.30)(1).A. Factors that affect the ability to memorize.B. The influence of childhood memories to adulthood.C. A proposa

17、l for future psychological research.D. Benefits of a busy lifestyle.（分数：7.10）A.B.C.D.(2).A. The need to exercise the memory.B. How the brain differs from other body tissues.C. The unconscious learning of a physical activity.D. How nerves control body movement.（分数：7.10）A.B.C.D.(3).A. Repeat it aloud.

18、 B. Write it down.C. Make a mental picture of it. D. Practice recalling it.（分数：7.10）A.B.C.D.八、Section C(总题数：1，分数：71.00)The traditional belief that a womans place is in the home and that a woman ought not to go out to work can hardly be reasonably (26) in present conditions. It is said that it is a w

19、omans task to care for the children, but families today (27) to be small. Thus a womans whole period of (28) may occur within five years. Furthermore, with (29) education from the age of five or six her role as chief educator of her children soon (30) It might be argued that the house-proud woman wo

20、uld still find plenty to do about the home. That may be so, but it is certainly no longer necessary for a woman to (31) her whole life cooking, cleaning, mending and sewing.Apart from womens own happiness, the (32) of the community must be considered. Modem society cannot do well without the (33) th

21、at women can make in professions and other kinds of work. There is a serious shortage of nurses and teachers, to mention only two of the occupations followed by women. It is extremely (34) to give years of training at public expense only to have the qualified teacher or nurse marry after a year or t

22、wo and be lost forever to her profession. The training, it is true, will help her in duties as a mother, but if she continued to work, her service would be more widely useful. Many factories and shops, too, are largely (35) by women, many of them married. While here the question of training is not s

23、o important, industry and trade would be seriously short of staff if married women did not work.（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)Did you know that all human beings have a “comfort zone“ regul

24、ating the distances they stand from someone when they talk? This (36) varies in interesting ways among people of different cultures.Greeks, others of the Eastern Mediterranean, and many of those from South America (37) stand quite close together when they talk, often moving their faces even closer a

25、s they warm up in a conversation. North Americans find this awkward and often back away a few inches. Studies have found that they tend to feel most (38) at about 21 inches apart. In much of Asia and Africa, there is even more space between two speakers in conversation. This greater space subtly len

26、ds an air of (39) and respect. This matter of space is nearly always unconscious, but it is interesting to observe.This difference applies also to the closeness with which people sit together, the extent to which they lean over one another in conversation, how they move as they argue or make an emph

27、atic point. In the United States, for example, people try to keep their bodies (40) even in a crowded elevator; in Paris they take it as it comes!Although North Americans have a relatively wide “comfort zone“ for talking, they (41) a great deal with their handsnot only with gesture but also with tou

28、ch. They put a (42) hand on a persons shoulder to (43) warmth of feeling or an arm around him in sympathy; they nudge a man in the (44) to emphasize a funny story; they pat an arm in reassurance or stroke a childhood in affection; they readily take someones arm to help him across a street or direct

29、him along an (45) route. To many peopleespecially those from Asia or the Moslem countriessuch bodily contact is unwelcome, especially if inadvertently (无心地) done with the left hand.A. communicate F. sympathetic K. awkwardB. talk G. unfamiliar L. demonstrateC. distance H. rarely M. comfortableD. apar

30、t I. normally N. happyE. hands J. ribs O. dignity（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)Petroleum ResourcesA) Petroleum, consisting of crude oil and natural gas, seems to originate from organic matter in marine sediment. Microscopi

31、c organisms settle to the seafloor and accumulate in marine mud. The organic matter may partially decompose, using up the dissolved oxygen in the sediment. As soon as the oxygen is gone, decay stops and the remaining organic matter is preserved.B) Continued sedimentationthe process of deposits settl

32、ing on the sea bottomburies the organic matter and subjects it to higher temperatures and pressures, which convert the organic matter to oil and gas. As muddy sediments are pressed together, the gas and small droplets of oil may be squeezed out of the mud and may move into sandy layers nearby. Over

33、long periods of time ( millions of years), accumulations of gas and oil can collect in the sandy layers. Both oil and gas are less dense than water, so they generally tend to rise upward through water-saturated rock and sediment.C) Oil pools are valuable underground accumulations of oil, and oil fie

34、lds are regions underlain by one or more oil pools. When an oil pool or field has been discovered, wells are drilled into the ground. Permanent towers, called derricks, used to be built to handle the long sections of drilling pipe. Now portable drilling machines are set up and are then dismantled an

35、d removed. When the well reaches a pool, oil usually rises up the well because of its density difference with water beneath it or because of the pressure of expanding gas trapped above it. Although this rise of oil is almost always carefully controlled today, spouts of oil, or gushers, were common i

36、n the past. Gas pressure gradually dies out, and oil is pumped from the well. Water or steam may be pumped down adjacent wells to help push the oil out. At a refinery, the crude oil from underground is separated into natural gas, gasoline, kerosene, and various oils. Petrochemicals such as dyes, fer

37、tilizer, and plastic are also manufactured from the petroleum.D) As oil becomes increasingly difficult to find, the search for it is extended into more hostile environments. The development of the oil field on the North Slope of Alaska and the construction of the Alaska pipeline are examples of the

38、great expense and difficulty involved in new oil discoveries. Offshore drilling platforms extend the search for oil to the oceans continental shelvesthose gently sloping submarine regions at the edges of the continents. More than one-quarter of the worlds oil and almost one-fifth of the worlds natur

39、al gas come from offshore, even though offshore drilling is six to seven times more expensive than drilling on land. A significant part of this oil and gas comes from under the North Sea between Great Britain and Norway.E) Of course, there is far more oil underground than can be recovered. It may be

40、 in a pool too small or too far from a potential market to justify the expense of drilling. Some oil lies under regions where drilling is forbidden, such as national parks or other public lands. Even given the best extraction techniques, only about 30 to 40 percent of the oil in a given pool can be

41、brought to the surface. The rest is far too difficult to extract and has to remain underground.F) Moreover, getting petroleum out of the ground and from under the sea and to the consumer can create environmental problems anywhere along the line. Pipelines carrying oil can be broken by faults or land

42、slides, causing serious oil spills. Spillage from huge oil-carrying cargo ships, called tankers, involved in collisions or accidental groundings (such as the one off Alaska in 1989) can create oil slicks at sea. Offshore platforms may also lose oil, creating oil slicks that drift ashore and foul the

43、 beaches, harming the environment. Sometimes, the ground at an oil field may subside as oil is removed. The Wilmington field near Long Beach, California, has subsided nine meters in 50 years; protective barriers have had to be built to prevent seawater from flooding the area. Finally, the refining a

44、nd burning of petroleum and its products can cause air pollution. Advancing technology and strict laws, however, are helping control some of these adverse environmental effects.G) Natural gas is a naturally occurring hydrocarbon gas mixture consisting primarily of methane, but commonly includes vary

45、ing amounts of other higher alkanes and even a lesser percentage of carbon dioxide, nitrogen, and hydrogen sulfide. Natural gas is an energy source often used for heating, cooking, and electricity generation. It is also used as fuel for vehicles and as a chemical feedstock in the manufacture of plas

46、tics and other commercially important organic chemicals.H) Natural gas is found in deep underground rock formations or associated with other hydrocarbon reservoirs in coal bedsand as methane clathrates. Petroleum is also another resource found in proximity to and with natural gas.I) Most natural gas

47、 was created over time by two mechanisms: biogenic and thermogenic. Biogenic gas is created by methanogenic organisms in marshes, bogs, landfills, and shallow sediments. Deeper in the earth, at greater temperature and pressure, thermogenic gas is created from buried organic material.J) Before natura

48、l gas can be used as a fuel, it must undergo processing to remove impurities, including water, to meet the specifications of marketable natural gas.K) The by-products of processing include ethane, propane, butanes, pentanes, and higher molecular weight hydrocarbons, hydrogen sulfide (which may be converted into pure sulfur) , carbon dioxide, water vapor, and sometimes helium and nitrogen.L) Natural gas is often inform