单选题I could have done it better if I______ more time.A. have hadB. hadC. had hadD. will have had

单选题In the meantime, we hope that we shall be able to ______ this unfortunate discrepancy, as the transaction, as it stands at the moment, shows a considerable loss to us. A．iron out B．make out C．take out D．turn out

单选题Without a(n) liberal supply of necessary equipment and materials, the mountain-climbers would not have been able to scale the heights and reach the top in such bad weather.

单选题The news______banks will charge higher interest comes out in today's TV report.

单选题It"s time we ______ lunch.

单选题At some point during their education, biology students are told about a conversation in a pub that took place over 50 years ago. J. B. S. Haldane, a British geneticist, was asked whether he would lay down his life for his country. After doing a quick calculation on the back of a napkin, he said he would do so for two brothers or eight cousins. In other words, he would die to protect the equivalent of his genetic contribution to the next generation. The theory of kin selection—the idea that animals can pass on their genes by helping their close relatives—is biology's explanation for seemingly altruistic acts. An individual carrying genes that promote altruism might be expected to die younger than one with "selfish" genes, and thus to have a reduced contribution to the next generation's genetic pool. But if the same individual acts altruistically to protect its relatives, genes for altruistic behavior might nevertheless propagate. Acts of apparent altruism to non-relatives can also be explained away, in what has become a cottage industry within biology. An animal might care for the offspring of another that it is unrelated to because it hopes to obtain the same benefits for itself later on (a phenomenon known as reciprocal altruism). The hunter who generously shares his spoils with others may be doing so in order to signal his superior status to females, and ultimately boost his breeding success. These apparently selfless acts are therefore disguised acts of selfinterest. All of these examples fit economists' arguments that Homo sapiens is also Homo economicus—maximizing something that economists call utility, and biologists fitness. But there is a residuum of human activity that defies such explanations: people contribute to charities for the homeless, return lost wallets, do voluntary work and tip waiters in restaurants to which they do not plan to return. Both economic rationalism and natural selection offer few explanations for such random acts of kindness. Nor can they easily explain the opposite: spiteful behavior, when someone harms his own interest in order to damage that of another. But people are now trying to find answers. When a new phenomenon is recognized by science, a name always helps. In a paper in Human Nature, Dr Fehr and his colleagues argue for a behavioral propensity they call "strong reciprocity". This name is intended to distinguish it from reciprocal altruism. According to Dr Fehr, a person is a strong reciprocator if he is willing to sacrifice resources to be kind to those who are being kind, and to punish those who are being unkind. Significantly, strong reciprocators will behave this way even if doing so provides no prospect of material rewards in the future.

单选题In his "Odyssey", Homer immortalized the idea of resisting temptation by having the protagonist tied to the mast of his ship, to hear yet not succumb to the beautiful, dangerous songs of the Sirens. Researchers have long been intrigued as to whether this ability to avoid, or defer, gratification is related to outcomes in life. The best-known test is the "marshmallow" experiment, in which children who could refrain from eating the confection for 15 minutes were given a second one. Children who could not wait tended to have lower incomes and poorer health as adults. New research suggests that kids who are unable to delay rewards are also more likely to become criminals later. Recently, four researchers used data from a Swedish survey in which more than 13,000 children aged 13 were asked whether they would prefer to receive $140 now or $1,400 in five years" time. About four-fifths of them said they were prepared to wait. Unlike previous researchers, the authors were able to track all the children and account for their parental background and cognitive ability. They found that the 13-year-olds who wanted the smaller sum of money at once were 32% more likely to be convicted of a crime during the next 18 years than those children who said they would rather wait for the bigger reward. Individuals who are impatient, they believe, prefer instant benefits and are therefore less likely to be deterred by potential punishments. But those who fret that a person"s criminal path is set already as a teenager should not despair. The four researchers offer a remedy. When the respondents" education was included in the analysis, they found that higher educational attainment was linked to a preference for delayed gratification. Educational attainment and patience are related either because patience helps students to do better or because schooling makes people more likely to postpone rewards. Fortunately, there is evidence in support of the latter theory. Francisco Perez-Arce of the RAND Corporation, a think-tank, interviewed around 2,000 applicants for Mexican universities. The students had similar credentials but some obtained admission through a lottery to a university that did not charge tuition fees, whereas the rest had to apply elsewhere. As a result, a higher proportion of lottery-winners than losers went to college. After a year, Mr. Perez-Arce found, the lottery-winners were more patient than the losers. Since the process was random, he concluded that higher education can make people place more weight on the future.

单选题She told her parents that she had decided to marry him, ______a prince or a pauper.

单选题_____ you decide to do, you should try to make it a success .

单选题— The old man wouldn't stay at home for a rest even if it rained. —______ . He would feel sick if he stayed home for one day.A. So would my grandpaB. So wouldn't my grandpaC. Neither would my grandpaD. Nor wouldn't my grandpa

单选题The word "laze" is an example of______in word formation.

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单选题In 1990, " Pretty Woman" became a smash hit her natural gift for this type of comedy brought her a nomination for Best Actress.

单选题Britain's undeclared general election campaign has already seen the politicians trading numbers as boxers trade punches. There is nothing new in such statistical slanging matches(相互谩骂)What is new is an underestimation of worry about what has been happening to official statistics under the Labour government. One of the most important figures for Gordon Brown when presenting his pre-election budget on March 16th was the current-budget balance. This is the gap between current revenues and current spending. It matters to the chancellor of the exchequer(财政部长) because he is committed to meeting his own "golden rule" of borrowing only to invest, so he has to ensure that the current budget is in balance or surplus over the economic cycle. Mr. Brown told MPs that he would meet the golden rule for the current cycle with ￡ 6 billion ($11.4 billion) to spare—a respectable-sounding margin, though much less than in the past. However, the margin would have been halved but for an obscure technical change announced in February by the Office for National Statistics to the figures for road maintenance of major highways. The ONS said that the revision was necessary because it had been double-counting this spending within the current budget. If this were an isolated incident, then it might be disregarded. But it is not the first time that the ONS has made decisions that appear rather convenient for the government. Mr. Brown aims to meet another fiscal rule, namely to keep public net debt below 40% of GDP, again over the economic cycle. At present he is meeting it but his comfort room would be reduced if the S 21 billion borrowings of Network Rail were included as part of public debt. They are not thanks to a controversial decision by the ONS to classify the rail-infrastructure corporation within the private sector, even though the National Audit Office, Parliament's watchdog, said its borrowings were in fact government liabilities. This makes it particularly worrying that the official figures can show one thing, whereas the public experiences another. One of the highest-profile targets for the NHS is that no patient should spend more than four hours in a hospital accident and emergency department. Government figures show that by mid-2004, the target was being met for 9696 of patients. But according to a survey of 55,000 patients by the Healthcare Commission, an independent body, only 77% of patients said they stayed no more than four hours in A&E. One way to help restore public confidence in official statistics would be to make the ONS independent, as the Conservatives and Liberal Democrats have suggested. Another would be for the National Audit Office to assess how the government has been performing against targets, as the Public Administration Committee has recommended.

单选题They awoke to find toe maid had left the remnants of dinner on the table.

单选题Mr John is not ______ now, but be will be well-known someday.

单选题For years Internet merchants have poured millions of dollars into new technologies to make their sites easier to use. So why aren't online customers happier? Customer satisfaction levels have remained almost fiat through the last several years. The problem, according to Larry Freed, chief executive of a consulting and research firm called ForeSee Results, is not so much that consumers have ignored the many improvements made in recent years. Rather, be said, they still expect more from Internet shopping than it has delivered. "If we walk into a local store, we don't expect that experience to be better than it was a couple years ago," Mr. Freed said. "But we expect sites to be better. The bar goes up every year." In ForeSee's latest survey, released last month, just five e-commerce sites registered scores higher than 80 out of 100, and no site scored higher than 85. It was much the same story a year ago, when just five scored higher than 80, with no site surpassing 85. "Scores have inched up over time for the best e-commerce companies, but the overall numbers haven't moved drastically," Mr. Freed said. "At the same time though, if you don't do anything you see your scores drop steadily." That dynamic has been a challenge for online merchants and investors, who a decade ago envisioned. Internet stores as relatively inexpensive (and therefore extremely profitable) operations. Now some observers predict a future where online retailers will essentially adopt something like the QVC model, with sales staff pitching the site's merchandise with polished video presentations, produced in a high-tech television studio. QVC.com is evolving in that direction. The Web site, which sold more than $1 billion in merchandise in 2006, has for the last five years let visitors watch a live feed of the network's broadcast. But in recent months, QVC.com has also given visitors the chance to watch archives of entire shows, and in the coming months visitors will be able to find more video segments from recent shows, featuring individual products that remain in stock. Bob Myers, senior vice president of QVC.com, said the Web site's video salesmanship is especially effective when combined with detailed product information, customer reviews and multiple photographs. About eight months ago, for instance, a customer said that she could not determine the size of a handbag from the photographs on the site because she could not tell the height of the model who was holding it. Within two weeks the site tested and introduced a new system, showing the bags with women of three different heights. The results were immediate: women who saw the new photographs bought the bags at least 10 percent more frequently than those who had not. Still, Mr. Myers said, video is a critically important element to sales. "E-commerce started with television commerce," he said. "The sites who engage and entertain customers will be winning here in the near future." Such a prospect is not necessarily daunting to other e-commerce executives. Gordon Magee, head of Internet marketing for Drs. Foster & Smith, based in a Rhinelander, Wis., said a transition to video "will be seamless for us." The company, Mr. Magee said, has in recent weeks discussed putting some of its product on video "so customers could see a 360-degree view they don't have to manipulate themselves./