单选题 Centuries ago, man found out that removing moisture from food helps to preserve it, and that the easiest way to do this is to expose the food to sun and wind. All foods contain water—cabbage and other leaf vegetables contain as much as 92% water, potatoes and other root vegetables 80%, lean meat 70% and fish anything from 80% to 60% depending on how fatty it is. If this water is removed, the activity of the bacteria(细菌) which cause food to go bad is checked. At present most foods are dried mechanically. The conventional method of such dehydration (脱水) is to put food in chambers through which hot air is blown at temperature of about 110℃ at entry to about 43℃ at exit. This is the usual method for drying such things as vegetables, minced meat and fish. Liquids such as milk, coffee, tea, soup and egg may be dried by pouring them over a heated horizontal steel cylinder or by spraying them into a chamber through which a current of hot air passes. In the first case, the dried material is stripped off the roller as a thin film which is then broken up into small, though still relatively coarse flakes. In the second process it falls to the bottom of the chamber as a fine powder. Where recognizable pieces of meat and vegetables are required, as in soup, the ingredients are dried separately and then mixed. Dried foods take up less room and weight less than the same food packed in cans or frozen, and they do not need to be stored in special conditions. For these reasons they are invaluable to climbers, explorers and soldiers in battle, who have little storage space, they are also popular with housewives for it takes so little time to cook them. Usually it is just a case of replacing the dried-out moisture with boiling water.

单选题The control of artificial devices is improving because ______.

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单选题Television has opened windows to everybody. Young men will never again go to war as they did in 1914. Millions of people now have seen the effects of a battle. And the result has been a general dislike of war, and perhaps more interest in helping those who suffer from all the terrible things that have been shown on the screen. Television has also changed politics. The most remote can now follow state affairs, see and hear the politicians before an election. Better informed, he is more likely to vote, and so to make his opinion count. Unfortunately, television's influence has been greatly harmful to the young. Children do not have enough experience to realize that TV shows present an unreal world; that TV advertisements lie to sell products that are sometimes bad or useless. They believe and want to practise what they see. They do believe that the violence they see is normal and acceptable. All educators agree that the "television generations" are more violent than their parents and grandparents. Also, the young are more impatient. Used to TV shows, where everything is quick and interesting, they do not have the patience to read an article without pictures, to read a book that requires thinking, to listen to a teacher who doesn't do funny things like the people on children's pro- grams. And they expect all problems to be solved happily in ten, fifteen, or thirty minutes. That's the time it takes on the screen.

单选题 {{B}} Text{{/B}} In common with many countries, Britain has serious environmental problems. In 1952, more than 4,000 people died in London because of the smog. The government {{U}}(26) {{/U}} new laws to stop smog from coal fires and factories and the {{U}}(27) {{/U}} improved a lot. Today, London is much cleaner {{U}}(28) {{/U}} there is a new problem: smog from cars. In December 1991, there was very {{U}}(29) {{/U}} wind in London and pollution {{U}}(30) {{/U}} a lot, which led to 160 deaths in just four days. {{U}} (31) {{/U}} of the problem is the new" out of town" shopping centers. In the past, people often {{U}}(32) {{/U}} to shops near their homes or went by bus. Today, many people drive to the new shopping centers. {{U}}(33) {{/U}}, the small shops have {{U}}(34) {{/U}} and more people have to go a long way to {{U}}(35) {{/U}} their shopping. Critics say that Britain needs better and cheaper public {{U}}(36) {{/U}} Many people are trying to {{U}}(37) {{/U}} the use of cars in Britain. Some cities now have special bicycle {{U}}(38) {{/U}} and many people ride to work. Some people also {{U}}(39) {{/U}} to work together in one car to reduce the pollution and the {{U}}(40) {{/U}}. Sometimes people take "direct {{U}}(41) {{/U}} ". In 1995, for example, many people wanted to {{U}}(42) {{/U}} a new road near Newbury. They built houses {{U}}(43) {{/U}} trees and lived there for many months. It {{U}}(44) {{/U}} a long time to force the people out of the trees {{U}}(45) {{/U}} work on the road could continue.

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单选题Questions 8-10 are based on the following monologue.

单选题Which of the following would be appropriate to describe the instruments for surgical operations up until 1960s?

单选题The picnics, speeches, and parades of today' s Labor Day were all part of the celebration, held in New York City in 1882. Its promoter was an Irish-American labor leader named Peter J. McGuire. A carpenter by trade, McGuire had worked since the age of eleven, and in 1882 was president of the United Brotherhood of Carpenters and Joiners (UBCJ). Approaching the City' s Central Labor Union that summer, he proposed a holiday that would applaud (赞许) "the industrial spirit—the great vital force of every nation. "On September 5 his suggestion bore fruit, as the estimated 10,000 workers, many of them ignoring their bosses' warnings, left work to march from Union Square up Fifth Avenue to 42rid Street. The event gained national attention, and by 1893 thirty states had made Labor Day an annual holiday. The quick adoption of the scheme may have indicated less about the state lawmakers' respect for working people than about a fear of risking their anger. In the 1880s the United States was a land sharply divided between the immensely wealthy and the very poor. Henry George was accurate in describing the era as one of "progress and poverty", in a society in which factory owners rode in private Pullmans while ten-year-olds slaved in the mines, strong anti-capitalist feelings ran high. Demands for fundamental change were common throughout the labor press. With socialists demanding an end to "wage slavery" and anarchists(无政府主义者)singing the praises of the virtues of dynamite(炸药), middle-of-the-roaders like Samuel Gompers and McGuire seemed attractively mild by comparison. One can imagine practical capitalists seeing Labor Day as a bargain: A one-day party certainly cost them less than paying their workers decent wages.

单选题Whatdoweknowaboutthespeaker'sfriend?

单选题Questions 18-21 are based on the following dialogue between a reporter and a health expert.

单选题Some futurologists have assumed that the vast upsurge of women in the workforce may portend a rejection of marriage. Many women, according to this hypothesis, would rather work than marry. The converse of this concern is that the prospects of becoming a multi-paycheck household could encourage marriage. In the past, only the earnings and financial prospects of the man counted in the marriage decision. Now, however, the earning ability of a woman can make her more attractive as a marriage partner. Data show that economic downturns tend to putting off marriage because the parties cannot afford to establish a family or are concerned about rainy days ahead. As the economy comes to life, the number of marriages also rises. The increase in divorce rates follows to the increase in women working outside the home. Yet, it may be wrong to jump to any simple cause-and-effect conclusions. The impact of a wife's work on divorce is no less cloudy than its impact on marriage decisions. The realization that she can be a good provider may increase the chances that a working wife will choose divorce over an unsatisfactory marriage. But the reverse is equally plausible (似是而非的). Tensions grounded in financial problems often play a key role in ending a marriage. By raising a family's standard of living, a working wife may strengthen her family's financial and emotional stability. Psychological factors also should be considered. For example, a wife blocked from a career outside the home may feel caged in the house. She may view her only choice as seeking a divorce. On the other hand, if she can find fulfillment through work outside the home, work and marriage can go together to create a stronger and more stable union. Also, a major part of women's inequality in marriage has been due to the fact that, in most cases, men have remained the main breadwinners. A working wife may rob a husband of being the master of the house. Depending upon how the couple reacts to these new conditions, it could create a stronger equal partnership or it could create new insecurities.

单选题What did Larry want his friend Karl to do for him?

单选题When the author came to the first antique shop, ______.

单选题Howoftenwillthewoman'ssonhavepianolessonsfromnextweekon?

单选题 {{I}} Questions 18～21 are based on the following dialogue on sports.{{/I}}

单选题How does the writer feel about travel today?

单选题Howmanylessonsmustthemanreviewovertheweekend?

单选题{{I}}Questions 11-13 are based on the following dialogue about post service.{{/I}}