单选题Although no one is Certain why migration occurs, there are several theories. One theory is based upon the premise that prehistoric birds of the northen Hemisphere were forced south during the Ice Age, when glaciers covered large parts of Europe, Asia, and North America. As the glaciers melted, the birds came back to their homelands, spent the summer, and then went south again as the ice advanced in winter In time, the migration became a habit, and now, although the glaciers have disappeared, the habit continues. Another theory proposes that the ancestral home of all modern birds was the tropics. When the region became overpopulated, many species were crowded north. During the summer, there was plenty of food, but during the winter, scarcity forced them to return to the tropics. A more recent theory, known as photoperiodism, suggests a relationship between increasing daylight and the stimulation of certain glands in the birds bodies that may prepare them for migration. One scientist has been able to cause midwinter migrations by exposing birds to artificial periods of daylight. He has concluded that changes occur in the bodies of birds due to seasonal changes in the length of daylight.

单选题(200l)My bother is looking forward to______a trip to Shanghai next month.

单选题The editor considered the author's analysis in his article to be {{U}}penetrating{{/U}}.

单选题A new economics paper has some old-fashioned advice for people navigating the stresses of life: Find a spouse who is also your best friend. Social scientists have long known that 1 people tend to be happier, but they debate whether that is because marriage causes happiness or simply because happier people are more 2 to get married. The new paper, 3 by the National Bureau of Economic Research, controlled for pre-marriage happiness levels. It 4 that being married makes people happier and more satisfied 5 their lives than those who remain single—particularly during the most stressful periods, like 6 crises. Even as fewer people are marrying, the disadvantages of remaining single have broad 7 . It"s important 8 marriage is increasingly a force behind inequality. 9 marriages are more common among educated, high-income people, and increasingly out of reach for those who are not. That divide appears to 10 not just people"s income and family stability, but also their happiness and stress levels. A quarter of today"s young adults will have never married by 2030, which would be the highest 11 in modern history, according to Pew Research Center. 12 both remaining unmarried and divorcing are more common among less-educated, lower-income people. 13 , high-income people still marry at high rates and are less likely to divorce. Those whose lives are most difficult could 14 most from marriage, according to the economists who wrote the new paper, John Helliwell and Shawn Grover. "Marriage may be most important when there is that stress in life and when things are going 15 ," Mr. Grover said. 16 marital happiness long outlasted the honeymoon period. 17 some social scientists have argued that happiness levels are innate, so people return to their natural level of well-being 18 joyful or upsetting events, the researchers found that the benefits of marriage persist. One 19 for that might be the role of friendship within marriage. Those who 20 their spouse or partner to be their best friend get about twice as much life satisfaction from marriage as others, the study found.

单选题Man: Look, the view is fantastic．Could you take a picture of me with the lake in the background? Woman: I'm afraid I just ran out of film. Question: What do we learn from the conversation?

单选题For the people who have never traveled across the Atlantic the voyage is a fantasy. But for the people who cross it frequently one crossing of the Atlantic is very much like another, and they do not make the voyage for the (56) of its interest. Most of us are quite happy when we feel (57) to go to bed and pleased when the journey (58) . On the first night this time I felt especially lazy and went to bed (59) earlier than usual. When I (60) my cabin, I was surprised (61) that I was to have a companion during my trip, which made me feel a little unhappy. I had expected (62) but there was a suitcase (63) mine in the opposite corner. I wondered who he could be and what he would be like. Soon afterwards he came in. He was the sort of man you might meet (64) , except that he was wearing (65) good clothes that I made up my mind that we would not (66) whoever he was and did not say (67) . As I had expected, he did not talk to me either but went to bed immediately. I suppose I slept for several hours because when I woke up it was already the middle of the night. I felt cold but covered (68) as well as I could and tried to go back to sleep. Then I realized that a (69) was coming from the window opposite. I thought perhaps I had forgotten (70) the door, so I got up (71) the door but found it already locked from the inside. The cold air was coming from the window opposite. I crossed the room and (72) the moon shone through it on to the other bed. (73) there. It took me a minute or two to (74) the door myself. I realized that my companion (75) through the window into the sea.

单选题On the top was the clear outline of a great wolf, sitting still, ears ______, alert, listening.

单选题What is a knowledge worker? Knowledge workers are people who routinely use a computer in their work to enhance their productivity. She or he is the critical component in a computer system. A computer system is made up of people, using data and procedures to work with software and hardware components. It takes all five working together to produce results. Knowledge workers are white-collar professionals from many walks of life who have the following characteristics. They understand how to use a personal computer. They know how to work with computer-based information. They understand how the computer benefits their work and the business. They regard the computer as a productivity tool. Knowledge workers may be employed in a company of any size, large or small, at a wide range of tasks. They may be self-employed, working in their own office or at home. They may be sales representatives or managers who travel with a portable computer. Students are knowledge workers as well. Many of you may be preparing for a career in knowledge work in office automation, public relations, account supervision, social work, management, or a number of other occupations. Today, there are over 70 million knowledge workers in the United States, who generate nearly 2 trillion pieces of paper each year. These knowledge workers work 10 hours per week more than they did 10 years ago, and create over 15 billion new pieces of paper a year. According to a survey conducted by Industry Week magazine in 1990, 39 percent of U. S. management-level knowledge workers say paperwork is a problem. Further, USA Today reported in 1991 that the average knowledge worker has 36 hours of work stacked up on the desk. Clearly, the computer as a productivity tool must play an ever more important role in knowledge work and knowledge work itself is steadily assuming larger proportions. According to several worldwide studies, urban centers in Canada, the United States, Europe, and other developed areas are increasingly using computer technology and thus evolving knowledge-based cities. These knowledge-based cities are characterized by. (1) a concentration of scientists and engineers, (2) business, university, and governmental research activities, (3) a high degree of interaction between individuals and the various institutions, and (4) a positive image that attracts college graduates to knowledge work. Clearly, the decade of the 1990s and the new millennium that follows are an exciting time for knowledge work.

单选题W: You haven't seen a blue notebook, have you? I hope I didn't leave it in the reading room.M: Did you check that pile of journals you've borrowed from the library the other day?Q: What is the man trying to say to the woman? A. She couldn't have left her notebook in the library. B. She may have put her notebook amid the journals. C. She should have made careful notes while doing reading. D. She shouldn't have read his notes without his knowing it.

单选题I say that not to persuade you, but merely to ______ my conscience. A. revolve B. relieve C. retrieve D. revive

单选题 When you are near a lake or a river, you feel cool. Why? The sun makes the earth hot, but it can't make the water very hot. Although the air over the earth becomes hot, the air over the water stays cool. The hot air over the earth rises. Then the cool air over the water moves in and takes the place of the hot air. Then you feel the cool air and the wind, which makes you cool. Of course, scientists can't answer all of your questions. If we ask, "Why is the ocean full of salt?" scientists will say that the salt comes from rocks. When a rock gets very hot or very cold, it cracks. Rain falls into the cracks. The rain then carries the salt into he earth and into the rivers. The rivers carry the salt into the ocean. But then we ask, "What happens to the salt in the ocean? The ocean doesn't get more slat every year." Scientists are not sure about the answer to this question. We know a lot about our world. But there are still many answers that we do not have, and we are curious.

单选题Regardless of their political affiliation, in all countries women must overcome a host of stumbling blocks that limit their political careers. "Most obstacles to progress consist of (1) of various kinds," says the Inter-Parliamentary Union (IPU), a Geneva-based organization (2) 139 parliaments, including the lack of time, training, information, self-confidence, money, support, motivation, women's networks and solidarity between women. In every culture, prejudice and stereotypes (3) hard. The belief still holds (4) that women belong in the kitchen and (5) the children, not at election (6) or in the Speaker's chair. The media often reinforce traditional images of women, who, upon entering politics, also bear the brunt (正面冲击) of verbal and physical (7) . In impoverished (贫穷的) countries (8) by civil conflicts and deteriorating economic and social conditions, women are (9) by the tasks of managing everyday life and looking after their families. The IPU stresses the general lack of child-care facilities—often (10) a privileged few—the (11) of political parties to change the times and running of meetings and the weak backing women receive from their families. That support, which is (12) as well as financial, is (13) vital because women have internalized (14) images of themselves since the (15) of time and often suffer from low self-confidence. Another obstacle is the lack of financial resources, especially as election campaigns become increasingly expensive. (16) , women encounter more or less open machismo (男子汉的高傲) in the (17) of closed political circles (18) entry to the "second sex. " Lastly, they (19) the lack of solidarity between women, (20) by the fact that the number of available positions is limited.

单选题{{B}}Part A{{/B}}{{B}}Directions:{{/B}}Reading the following four texts. Answer the questions below each text by choosing A, B, C or D. Mark your answers on ANSWER SHEET 1. {{B}}Text 1{{/B}} That low moaning sound in the background just might be the Founding Fathers protesting from beyond the grave. They have been doing it when George Bush, at a breakfast of religious leaders, scorched the Democrats for failing to mention God in their platform and declaimed that a President needs to believe in the Almighty. What about the constitutional ban on "religious test(s)" for public office? the Founding Fathers would want to know. What about Tom Jefferson's conviction that it is Possible for a nonbeliever to be a moral person, "find (ing) incitements to virtue in the comfort and pleasantness you feel in its exercise"? Even George Washington must shudder in his sleep to hear the constant emphasis on "Judeo- Christian values." It was he who wrote, "We have abundant reason to rejoice that in this Land ... every person may here worship God according to the dictates of his own heart." George Bush should know better than to encourage the theocratic ambitions of the Christian right. The "wall of separation" the Founding Fathers built between church and state is one of the best defenses freedom has ever had. Or have we already forgotten why the Founding Fathers put it up? They had seen enough religious intolerance in the colonies: {{U}}Quaker women{{/U}} were burned at the stake in Puritan Massachusetts; Virginians could be jailed for denying the Bible's authority. No wonder John Adams once described the Judeo-Christian tradition as "the most bloody religion that ever existed," and that the Founding Fathers took such pains to keep the hand that holds the musket separate from the one that carries the cross. There was another reason for the separation of church and state, which no amount of pious ranting can expunge: not all the Founding Fathers believed in the same God, or in any God at all. Jefferson was a renowned doubter, urging his nephew to "question with boldness even the existence of a God." John Adams was at least a skeptic, as were of course the revolutionary firebrands Tom Paine and Ethan Allen. Naturally, they designed a republic in which they themselves would have a place. Yet another reason argues for the separation of church and state. If the Founding Fathers had one overarching aim, it was to limit the power not of the churches but of the state. They were deeply concerned, as Adams wrote, that "government shall be considered as having in it nothing more mysterious or divine than other arts or sciences." Surely the Republicans, committed as they are to "limited government," ought to honor the secular spirit that has limited our government from the moment of its birth.

单选题Didn't you see what the naughty boy______to our neighbor's pet dog?

单选题Auctions (拍卖) are public sales of goods, made by an officially approved auctioneer. He asked the crowd assembled in the auction room to make offers, or bids, for the various items on sale. He encouraged buyers to bid higher figures, and finally named the highest bidder as the buyer of the goods. This is called "knocking down" the goods, for the bidding ends when the auctioneer bangs a small hammer on a table at which he stands. This is often set on a raised platform called a rostrum. The ancient Romans probably invented sales by auction, and the English word comes from the Latin auction, meaning "increase". The Romans usually sold in this way the spoils taken in war, these sales were called "sub hash", meaning "under the spear", a spear being stuck in the ground as a signal for a crowd to gather. In England in the eighteenth century, goods were often sold "by the candle": a short candle was lit by the auctioneer, and bids could be made while it stayed alight. Practically all goods whose qualities varied are sold by auction. Among these are coffee, hides, skins, wool, tea, cocoa, furs, spices, fruit, vegetables and wines. Auction sales are also usual for land and property, antique furniture, pictures, rare books, old china and similar works of art. The auction rooms at Christie's and Sotheby's in London and New York are world famous. An auction is usually advertised beforehand with full particulars of the articles to be sold and where and when they can be viewed by prospective buyers. If the advertisement cannot give full details, catalogues are printed, and each group of goods to be sold together, called a "lot", is usually given a number. The auctioneer need not begin with Lot 1 and continue in numerical order; he may wait until he registers the fact that certain dealers are in the room and then produce the lots they are likely to be interested in. The auctioneer's services are paid for in the form of a percentage of the price the goods are sold for. The auctioneer therefore has a direct interest in pushing up the bidding as high as possible.

单选题They planned to go to Beijing for sightseeing, but because of their daughter's unexpected illness they had to stay at home ______.A. insteadB. reallyC. howeverD. though

单选题Although we are (concerned with) the problem of energy sources, we (must not) fail (recognizing) the need (for) environmental protection.A. concerned withB. must notC. recognizingD. for

单选题Some pessimistic experts feel that the automobile is bound to fall into disuse. They see a day in the not-too-distant future when all autos will be abandoned and allowed to rust. Other authorities, however, think the auto is here to stay. They hold that the car will remain a leading means of travel in the foreseeable future. The motorcar will undoubtedly change significantly over the next 30 years. It should become smaller, safer, and more economical, and should not be powered by the gasoline engine. The car of the future should be far more pollution-free than present types. Regardless of its power source, the auto in the future will still be the main problem in urban traffic congestion (拥挤). One proposed solution to this problem is the automated highway system. When the auto enters the highway system, a retractable (可伸缩的) arm will drop from the auto and make contact with a rail, which is similar to those powering subway trains electrically. Once attached to the rail, the car will become electrically powered from the system, and control of the vehicle will pass to a central computer. The computer will then monitor all of the car's movements. The driver will use a telephone to dial instructions about his destination into the system. The computer will calculate the best route, and reserve space for the car all the way to the correct exit from the highway. The driver will then be free to relax and wait for the buzzer (蜂鸣器) that will warn of his coming exit. It is estimated that an automated highway will be able to carry 10,000 vehicles per hour, compared with the 1,400 to 2,000 vehicles that can be carried by a present-day highway.

单选题She ______ making tea for us as soon as she let us in.