单选题The victims of drunken driving in America over the past decade ______ an incredible 250, 000, with three killed every hour of every day on average. A. take up B. add up to C. count for D. turn out to

单选题As is the case in many cultures, the degree to which a minority group was seen as different from the characteristics of the dominant majority determined the extent of that group's acceptance. Immigrants who were like the earlier settlers were accepted. The large numbers of immigrants with significantly different characteristics tended to be viewed as a threat to basic American values and the American way of life. This was particularly true of the immigrants who arrived by the millions during the late nineteenth and early twentieth centuries. Most of them came from poverty-stricken nations of southern and eastern Europe. They spoke languages other than English, and large numbers of them were Catholics or Jews. Americans at the time were very fearful of this new flood of immigrants. They were afraid that these people were so accustomed to lives of poverty and dependence that they would not understand such basic American values as freedom, self-reliance and competition. There were so many new immigrants that they might even change the basic values of the nation in undesirable ways. Americans tried to meet what they saw as a threat to their values by offering English instruction for the new immigrants and citizenship classes to teach them basic American beliefs. The immigrants, however, often felt that their American teachers disapproved of the traditions of their homeland. Moreover, learning about American values gave them little help in meeting then-most important needs such as employment, food, and a place to live. Far more helpful to the new immigrants were the "political bosses" of the larger cities of the northeastern United States, where most of the immigrants first arrived. Those bosses saw too many of the practical needs of the immigrants and were more accepting of the different homeland traditions. In exchange for their help, the political bosses expected the immigrants to keep them in power by voting for them in elections. In spite of this, many scholars believe that the political bosses performed an important function in the late nineteenth and early twentieth centuries. They helped to assimilate large numbers of disadvantaged white immigrants into the larger American culture. The fact that the United States had a rapidly expanding economy at the beginning of the century made it possible for these new immigrants, often with the help of the bosses, to belter their standard of living in the United States. As a result of these new opportunities and new rewards, immigrants came to accept most of the values of the larger American culture and were accepted by the great majority of Americans. For white ethnic groups, therefore, it is generally true that their feeling of being a part of the larger culture, that is, "American" is much stronger than their feeling of belonging to a separate ethnic group — Irish, Italian, Polish, etc.

单选题Among the many ways in which people communicate through speech, public speaking has probably received more study and attracted more attention than any other. Politicians campaigning for public office, salespeople presenting products, and preachers delivering sermons all depend upon this form of public communication. Even people who do not make speaking a part of their daily work are often asked to make public speeches: students at graduation, for instance, or members of churches, clubs, or other organizations. Nearly, everyone speaks in public at some time or other, and those who perform the task well often become leaders. There are many reasons for speaking in public. A public speaker may hope to teach an audience about new ideas, for example, or provide information about some topic. Creating a good feeling or entertaining an audience may be another purpose. Public speakers, however, most often seek to persuade an audience to adopt new opinions, to take certain actions, or to see the world in a new way. Public speakers usually know well in advance when they are scheduled to make an address. Consequently, they are able to prepare their message before they deliver it. Sometimes, though, speakers must deliver the message unprepared, or off the cuff, such as when they are asked to offer a toast at a wedding reception or to participate in a televised debate or interview. When they do not have to speak unpreparedly, most speakers write their own speeches. Politicians and business executives sometimes employ professional writers who prepare their for them. These professional writers may work alone or in small teams. Although the speaker may have some input into the contents of the speech, the writers sometimes have a great influence over the opinions expressed by their employers. Regardless of how a speech is prepared, the person who delivers it is given credit for its effect upon its hearers.

单选题Well, no gain without pain, they say. But what about pain without gain? Everywhere you go in America, you hear tales of corporate revival. What is harder to establish is whether the productivity revolution that businessmen assume they are presiding over is for real. The official statistics are mildly discouraging. They show that, if you lump manufacturing and services together, productivity has grown on average by 1.2% since 1987. That is somewhat faster than the average during the previous decade. And since 1991, productivity has increased by about 2% a year, which is more than twice the 1978—1987 average. The trouble is that part of the recent acceleration is due to the usual rebound that occurs at this point in a business cycle, and so is not conclusive evidence of a revival in the underlying trend. There is, as Robert Rubin, the treasury secretary, says, a "disjunction" between the mass of business anecdote that points to a leap in productivity and the picture reflected by the statistics. Some of this can be easily explained. New ways of organizing the workplace—all that re-engineering and downsizing—are only one contribution to the overall productivity of an economy, which is driven by many other factors such as joint investment in equipment and machinery, new technology, and investment in education and training. Moreover, most of the changes that companies make are intended to keep them profitable, and this need not always mean increasing productivity, switching to new markets or improving quality can matter just as much. Two other explanations are more speculative. First, some of the business restructuring of recent years may have been ineptly done. Second, even if it was well done, it may have spread much less widely than people suppose. Leonard Schlesinger, a Harvard academic and former chief executive of Au Bong Pain, a rapidly growing chain of bakery cafes, says that much "re-engineering" has been crude. In many cases, he believes, the loss of revenue has been greater than the reductions in cost. His colleague, Michael Beer, says that far too many companies have applied re-engineering in a mechanistic fashion, chopping out costs without giving sufficient thought to long-term profitability. BBDO's Al Rosenshine is blunter. He dismisses a lot of the work of re-engineering consultants as mere rubbish—"the worst sort of ambulance-chasing".

单选题He forgave his wife although she had once had a ______affair with a poet.

单选题In order to survive now and______ in the future, all the working staff must constantly create new ideas for every aspect of your business.(2002年春季上海交通大学考博试题)

单选题Scientists are______certain that there is a cancer-inhibiting agent in the blood of theshark.(2003年3月中国科学院考博试题)

单选题暂缺

单选题Many Fine Art graduates take ______ professional practice as artists, and this course encourages them to consider their role as artists in the community by providing opportunities for short-term placements outside the faculty.

单选题A comet is distinguished from other bodies in the solar system ______.

单选题I would like to say that a theory is essentially an abstract, symbolic representation of reality.

单选题The ship was ______ in a storm off Jamaica. A. drowned B. immerged C. wrecked D. submitted

单选题Parkinson's disease, first described in the early 1800s by British physician James Parkinson as "shaking palsy," is among the most prevalent neurological disorders. According to the United Nations, at least four million people worldwide have it: in North America, estimates run from 500,000 to one million, with about 50,000 diagnosed every year. These figures are expected to double by 2040 as the world's elderly population grows; indeed, Pakinson's and other neurodegenerative illness common in the elderly (such as Alzheimer's and amyotrophic lateral sclerosis) are on their way to over-taking cancer as a leading cause of death. But the disease is not entirely one of the aged: 50 percent of patients acquire it after age 60; the other half are affected before then. Furthermore, better diagnosis has made experts increasingly aware that the disorder can attack those younger than 40. So far researchers and clinicians have found no way to slow, stop or prevent Parkinson's. Although treatments do exist—including drugs and deep-brain stimulation—these therapies alleviate symptoms, not causes. In recent years, however, several promising developments have occurred. In particular, investigators who study the role proteins play have linked miscreant proteins to genetic underpinnings of the disease. Such findings are feeding optimism that fresh angles of attack can be identified. As its 19th-century name suggests—and as many people know from the educational efforts of prominent Parkinson's sufferers such as Janet Reno, Muhammad All and Michael J. Fox—the disease is characterized by movement disorders. Tremor in the hands, arms and elsewhere, limb rigidity, slowness of movement, and impaired balance and coordination are among the disease's hallmarks. In addition, some patients have trouble walking, talking, sleeping, urinating and performing sexually. These impairments result from neurons dying. Although the victim cells are many and found throughout the brain, those producing the neurotransmitter dopamine in a region called the substantia nigra are particularly hard-hit. These dopaminergic nerve cells are key components of the basal ganglia, a complex circuit deep within the brain that fine-tunes and coordinates movement. Initially the brain can function normally as it loses dopaminergic neurons in the substantia nigra, even though it cannot replace the dead cells. But when half or more of these specialized cells disappear, the brain can no longer cover for them. The deficit then produces the same effect that losing air traffic control does at a major airport. Delays, false starts, cancellations and, ultimately, chaos pervade as parts of the brain involved in motor control—the thalamus, basal ganglia and cerebral cortex—no longer function as an integrated and orchestrated unit.

单选题Pity those who aspire to put the initials PhD after their names. After 16 years of closely supervised education, prospective doctors of philosophy are left more or less alone to write the equivalent of a large book. Most social-science postgraduates have still not completed their theses by the time their grant runs out after three years. They must then get a job and finish in their spare time, which can often take a further three years. By then , most new doctors are sick to death of the narrowly defined subject which has blighted their holidays and ruined their evenings. The Economic and Social Research Council, which gives grants to postgraduate social scientists, wants to get better value for money by cutting short this agony. It would like to see faster completion rates: until recently, only about 25% of PhD candidates were finishing within four years. The ESRC's response has been to stop PhD grants to all institutions where the proportion taking less than four years is below 10% ; in the first year of this policy the national average shot up to 39%. The ESRC feels vindicated in its toughness, and will progressively raise the threshold to 40% in two years. Unless completion rates improve further, this would exclude 55 out of 73 universities and polytechnics-including Oxford University, the London School of Economics and the London Business School. Predictably, howls of protest have come from the universities, who view the blacklisting of whole institutions as arbitrary and negative. They point out that many of the best students go quickly into jobs where they can apply their research skills, but consequently take longer to finis their theses. Polytechnics with as few as two PhD candidates complain that they are penalized by random fluctuations in student performance. The colleges say there is no hard evidence to prove that faster completion rates result from greater efficiency rather than lower standards or less ambitious doctoral topics. The ESRC thinks it might not be a bad thing if PhD students were more modest in their aims. It would prefer to see more systematic teaching of research skills and fewer unrealistic expectations placed on young men and women who are undertaking their first piece of serious research. So in future its grants will be given only where it is convinced that students are being trained as researchers, rather than carrying out purely knowledge-based studies. The ESRC cannot dictate the standard of thesis required by external examiners, or force departments to give graduates more teaching time. The most it can do is to try to persuade universities to change their ways. Recalcitrant professors should note that students want more research training and a less elaborate style of thesis, too.

单选题"The highest merit we ascribe to Moses, Plato, and Milton," says Emerson, "is that they set at nought books and traditions, and spoke not what men thought but what they thought. A man should learn to detect and watch that gleam of light which flashes across his mind from within, more than the luster of the firmament of bards and sages. Yet he dismisses without notice his thought because it is his. In every work of genius we recognize our own rejected thoughts; they come back to us with a certain alienated majesty." It is strange that any one who has recognized the individuality of all works of lasting influence should not also recognize the fact that his own individuality ought to be steadfastly preserved. As Emerson says in continuation, "Great works of art have no more affecting lesson for us than this. They teach us to abide by our spontaneous impressions with goodhumored inflexibility, then most when the whole cry of voices is on the other side. Else tomorrow a stranger will say with masterful good sense precisely what we have thought and felt all the time, and we shall be forced to take with shame our opinion from another." Accepting the opinions of another and the tastes of another is very different from agreement in opinion and taste. Originality is independence, not rebellion. It is sincerity, not antagonism. Whatever you believe to be true and false, that proclaim to be true and false. Whatever you think admirable and beautiful, that should be your model, even if all your friends and all the critics storm at you as a crotchet-monger and an eccentric. Whether the public will feel its truth and beauty at once, or after long years, or never cease to regard it as paradox and ugliness, no man can foresee. Enough for you to know that you have done your best, have been true to yourself, and that the utmost power inherent in your work has been displayed.

单选题I haven"t read that book, but just from looking over the ______, I think it would be worth reading.

单选题China's______cultural heritage should be better protected through increased efforts to preserve endangered art. A. inalienable B. intangible C. intelligible D. indivisible

单选题{{B}}Passage 6{{/B}} Even in fresh water sharks hunt and kill. The Thresher shark, capable of lifting a small boat out of the water, has been sighted a mile inland on the Fowey River in Corn-wall. Killer sharks swim rivers to reach Lake Nicaragua in Central America; they average one human victim each year. Sewage and garbage attract sharks inland. When floods carry garbage to the rivers they provide a rich diet which sometimes stimulates an epidemic of shark attacks. Warm water generally provides shark food, and a rich diet inflames the shark's aggression. In British waters sharks usually swim peacefully between ten and twenty miles off- shore where warm water currents fatten mackerel and pilchards for their food. But the shark is terrifyingly unpredictable. One seaman was severely mauled as far north as Wick in Scotland. Small boats have been attacked in the English Channel, Irish Sea and North Sea. Most of the legends about sharks are founded in ugly fact. Even a relatively small shark--a 200 lb. Zambezi--can sever a man's leg with one bite, Sharks have up to seven rows of teeth and as one front tooth is damaged or lost another moves forward to take its place. The shark never sleeps. Unlike most fish, it has no air bladder, and it must move constantly to avoid sinking. It is a primitive creature, unchanged for sixty million years of evolution. Its skin is without the specialized scales of a fish. Fully grown, it still has five pairs of separate gills like a three-week human embryo. But it is a brilliantly efficient machine. Its skin carries nerve endings which can detect vibrations from fish moving several miles away. Its sense of smell, the function of most of its brain, can detect one p. art in 600,000 of tuna fish juice in water, or the blood of a fish or animal from a quarter of a mile away. It is colour blind, and sees best in deep water, but it can distinguish shapes and patterns of light and shade easily. Once vibrations and smell have placed its prey the shark sees well enough to home in by vision for the last fifty feet. The shark eats almost anything. It will gobble old tin cans and broken bottles as well as fish, animals and humans. Beer bottles, shoes, wrist watches, car number plates, overcoats and other sharks have been found in dead sharks. Medieval records tell of entire human corpses still encased in armour. The United States military advice on repelling sharks is to stay clothed--sharks go for exposed flesh, especially the feet. Smooth swimming at the surface is essential. Frantic splashing will simply attract sharks, and dropping below the surface makes the swimmer an easy target. If the shark gets close, then is the time to kick, thrash and hit out. A direct hit on the snout, gills, or eyes will drive away most sharks. The exception is the Great White shark. It simply kills you.