单选题You can't be ______ careful in making the decision as it was such a critical case.

单选题The advertisement says this material doesn't ______ in the wash, but it has.

单选题(Not one) in one hundred children exposed to the disease (are) (likely) (to develop) symptoms of it.

单选题The opposition party demands that those cabinet members who are involved in the recent scandal should ______. A. let down B. step down C. put down D. come down

单选题Government reports, examination compositions, legal documents and most business letters are the main situations ______ formal language is used. A. in which B. at what C. on which D. in that

单选题Could the bad old days of economic decline be about to return? Since OPEC agreed to supply-cuts in March, the price of crude oil has jumped to almost $26 a barrel, up from less than $10 last December. This near-tripling of oil prices calls up scary(可怕的) memories of the 1973 oil shock, when prices quadrupled(成四倍), and 1979—1980, when they also almost tripled. Both previous shocks resulted in double-digit inflation and global economic decline. So where are the headlines warning of gloom and doom this time? The oil price was given another push up this week when Iraq suspended oil exports. Strengthening economic growth, at the same time as winter grips the northern hemisphere, could push the price higher still in the short term. Yet there are good reasons to expect the economic consequences now to be less severe than in the 1970s. In most countries the cost of crude oil now accounts for a smaller share of the price of petrol than it did in the 1970s. In Europe, taxes account for up to four-fifths of the retail price, so even quite big changes in the price of crude have a more muted(温和的) effect on pump prices than in the past. Rich economies are also less dependent on oil than they were, and so less sensitive to swings(摆动) in the oil price. Energy conservation(节约), a shift to other fuels and a decline in the importance of heavy, energy-intensive industries have reduced oil consumption. Software, consultancy and mobile telephones use far less oil than steel or car production. For each dollar of GDP (in constant prices) rich economies now use nearly 50% less oil than in 1973. The OECD estimates in its latest Economic Outlook that, if oil prices averaged $22 a barrel for a full year, compared with $13 in 1998, this would increase the oil import bill in rich economies by only 0.25% ~ 0.5% of GDP. That is less than one-quarter of the income loss in 1974 or 1980. On the other hand, oil-importing emerging economies — to which heavy industry has shifted — have become more energy-intensive, and so could be more seriously squeezed. One more reason not to lose sleep over the rise in oil prices is that, unlike the rises in the 1970s, it has not occurred against the background of general commodity-price inflation and global excess demand. A sizable portion of the world is only just emerging from economic decline. The Economist's commodity price index is broadly unchanging from a year ago. In 1973 commodity prices jumped by 70% , and in 1979 by almost 30%.

单选题{{B}}Passage Two{{/B}} Beliefs are shared ideas about how the world operates. They may be' summaries and interpretations of the past, explanations of the' present or predictions for the future, and may be based on common sense, folk wisdom, religion, science, or some combination of these. Some beliefs apply to intangible (无形的) things (for example, whether the human spirit lives on after .death). All cultures distinguish between ideas for which people have reasonable proof (for Americans, for ex ample, the idea that smoking increases the risk of cancer) and ideas that have not been, or cannot be, tested (for Americans, for example, the idea that there is intelligent life on other planets). Where and how people draw the line varies, however. Bemuse beliefs shape both personal and social experience, basic differences in beliefs can account for some of the problems Vietnamese immigrants have had in American society. One exampie is beliefs concerning the nature of time. People in Western cultures believe time is irreversible (不可回转的). We think of time as a straight line. On every January 1st we add another year to the calendar. Traditionally, the Vietnamese have reckoned time in sixty-yesr cycles. Every sixty years the cycle starts over with .the year with which it began. Such a conception of time suggests that current events are not unique; that things come around again. American beliefs regarding time as linear create the sense that "time is ticking away"; the Vietnamese belief that time is cyclical creates an entirely different state of mind. Beliefs apply not only to concepts like time but also to mundane (世俗的，世间的) aspects of the material world. Residents of San Francisco were offended greatly to learn that rural immigrants from Laos and Cambodia had been stalking(蹑手蹑脚地走近) their dinner in Golden Gate Park. San Franciscans could not understand how the newcomers could hunt and eat squirrels(松鼠) and stray dogs; the Indochinese(印度支那人) could not understand why San Franciscans did not— a classic case of the same object (in this case, dogs) having different cultural meanings. Even within our own culture we can see great variation in how people think about the same re source. Some people see dogs as working animals, acquired to protect our apartments or livestock; others treat their dogs as special friends or even substitute children.

单选题If the book you want to borrow is about engineering and it was returned yesterday, you would probably get it______.

单选题The growth of population during the past few centuries is no proof that population will continue to grow straight upward toward infinity and doom. On the contrary, demographic history offers evidence that population growth has not been at all constant. According to paleo-ecologist Edward Deevey, the past million years show three momentous changes. The first, a rapid increase in population around one million B. C. , followed the innovations of tool-making and tool-using. But when the new power from the use of tools had been exploited, the rate of world population growth fell and became almost stable. The next rapid jump in population started perhaps 10,000 years ago, when men began to keep herds, plow and plant the earth. Once again when initial productivity gains had been absorbed, the rate of population growth abated. These two episodes suggest that the third great change, the present rapid growth, which began in the West between 250 and 350 years ago, may also slow down when, or if technology begins to yield fewer innovations. Of course, the current knowledge revolution may continue without foreseeable end. Either way contrary to popular belief in constant geometric growth-- population can be expected in the long run to adjust to productivity.

单选题 Until recently most historians spoke very critically of the Industrial Revolution. They.{{U}} (31) {{/U}}at in the long run industrialization greatly raised the standard of living for the{{U}} (32) {{/U}}man. But they insisted that its{{U}} (33) {{/U}}results during the period from 1740 to 1840 were widespread poverty and misery for the{{U}} (34) {{/U}}of the English population.{{U}} (35) {{/U}}contrast, they saw in the preceding hundred years from 1640 to 1740, when England was still a{{U}} (36) {{/U}}.agricultural country, a period of great abundance and prosperity. This view,{{U}} (37) {{/U}}is generally thought to be wrong. Specialists{{U}} (38) {{/U}}history and economics, have{{U}} (39) {{/U}}two things: that the period from 1640 to 1740 was{{U}} (40) {{/U}}by great poverty, and that industrialization certainly did not worsen and may have actually improved the conditions for the majority of the populace.

单选题The more the relative humidity(温度) reading (rises), (the worst) the heat (affects) (us).

单选题The Internet can make the news more democratic, giving the public a chance to ask questions and seek out facts behind stories and candidates, according to the head of the largest US on-line service. "But the greatest potential for public participation is still in the future," Steven Case, chairman of America On-line, told a recent meeting on Journalism and the Internet sponsored by The Freedom Forum, though some other speakers say the new technology of computers is changing the face of journalism, giving reporters access to more information and their readers a chance to ask questions and turn to different sources. "You don"t have to buy a newspaper and be confined to the four corners of that paper anymore," Sam Meddis, on-line technology editor at USA Today, observed about the variety of information available to computer users. But the speakers noted the easy access to the internet also means anyone can post information for others to see. "Anyone can say anything they want, whether it"s right or wrong," said Case. Readers have to determine for themselves whom to trust. "In a world of almost infinite voices, respected journalists and respected brand names will probably become more important, not less," Case said. "The internet today is about where radio was 80 years ago, or television 50 years ago or cable 25 years ago," he said. But it is growing rapidly because it provides people fast access to news and a chance to comment on it.

单选题Do you think the president will be able to ______ his promise not to raise taxes? A. catch B. capture C. find D. keep

单选题Two (of the players) from the Yankees (has) been (chosen) (to participate) in the All Star game.A. of the playersB. hasC. chosenD. to participate

单选题Prolonging human life has increased the size of the human population. Many people alive today would have died of childhood diseases if they had been born a hundred years ago. Because more people live longer, there are more people around at any given time. In fact, it is a decrease in death rates, not an increase in birth rates, that has led to the population explosion. Prolonging human life has also increased the dependency load. In all societies, people who are disabled or too young or too old to work are dependent on the rest of society to provide for them. In hunting and gathering cultures, old people who could not keep up might be left behind to die. In times of famine, infants might be allowed to die because they could not survive if their parents starved, whereas if the parents survived they could have another child. In most contemporary societies, people feel a moral obligation to keep people alive whether they can work or not. We have a great many people today who live past the age at which they want to work or are able to work; we also have rules which require people to retire at a certain age. Unless these people were able to save money for their retirement, somebody else must support them. In the United States many retired people live on social security checks which are so little that they must live in near poverty. Older people have more illness than young or middle-aged people~ unless they have wealth or private or government insurance, they must often go on welfare if they have a serious illness. When older people become senile or too weak to care for themselves, they create grave problems for their families. In the past and in some traditional cultures, they would be cared for at home until they died. Today, with most members of a household working or in school, there is often no one at home who can care for a sick or weak person. To meet this need, a great many nursing homes and convalescent hospitals have been built. These are often profit-making organizations, although some are sponsored by religious and other non- profit groups. While a few of these institutions are good, most of them are simply dumping grounds for the dying in which care is given by poorly paid, overworked, and under-skilled personnel.

单选题Speaker A: Thank you very much for inviting us to such a delightful dinner. Speaker B: ______.

单选题Human beings are superior to animals ______ they can use language as tool to communicate.

单选题The fact that blind people can "see" things using other parts of their bodies apart from their eyes may help us to understand our feelings about colour. If they can sense colour differences then perhaps we, too, are affected by colour unconsciously. Manufacturers have discovered by trial and error that sugar sells badly in green wrappings, and that blue foods are considered unpleasant, and the cosmetics should never be packaged in brown. These discoveries have grown into a whole discipline of colour psychology that now finds application in everything from fashion to interior decoration. Some of our preferences are clearly psychological. Dark blue is the colour of the night sky and therefore associated with passivity and calm, while yellow is a day colour with associations of energy and incentive. For primitive man, activity during the day meant hunting and attacking, while he soon saw red as the colour of blood and rage and the heat that came with effort. And green is associated with passive defence and self-preservation. Experiments have shown that colours, partly because of their psychological association, also have a direct psychological effect. People exposed to bright red show an increase in heartbeat, and blood pressure; red is exciting. Similar exposure to pure blue has exactly the opposite effect; it is a calming colour. Because of its exciting connotations(含义), red was chosen as the signal for danger, but closer analysis shows that a vivid yellow can produce a more basic state of alertness and alarm, so fire engines and ambulances in some advanced communities are now rushing around in bright yellow colours that stop the traffic dead.

单选题Speaker A: How much would it cost me to send this parcel to New York?Speaker B: That'll be twenty-five dollars.Speaker A: Twenty-five dollars? ______

单选题In some underdeveloped areas of the world, sick people go to a witch or priest instead of doctors for A. treatment B. cure C. heal D. care