单选题Playing table tennis is her ______. A. hobby B. care C. sport D. habit

单选题If you happened to be watching NBC on the first Sunday morning in August last summer, you would have seen something curious. There, on the set of Meet the Press, the host, David Gregory, was interviewing a guest who made a forceful case that the U. S. economy had become "very distorted. " In the wake of the recession, this guest explained, high-income individuals, large banks, and major corporations had experienced a "significant recovery"; the rest of the economy, by contrast—including small businesses and "a very significant amount of the labor force" —was stuck and still struggling. What we were seeing, he argued, was not a single economy at all, but rather "fundamentally two separate types of economy," increasingly distinct and divergent. This diagnosis, though alarming, was hardly unique, drawing attention to the divide between the wealthy and everyone else has long been standard fare on the left. (The idea of "two Americas" was a central theme of John Edwards's 2004 and 2008 presidential runs. ) What made the argument striking in this instance was that it was being offered by none other than the former five-term Federal Reserve Chairman Alan Greenspan. iconic libertarian, preeminent defender of the free market, and (at least until recently) the nation's foremost devotee of Ayn Rand. When the high priest of capitalism himself is declaring the growth in economic inequality a national crisis, something has gone very, very wrong. This widening gap between the rich and non-rich has been evident for years. In a 2005 report to investors, for instance, three analysts at Citigroup advised that "the World is dividing into two blocs—the Plutonomy and the rest". In a plutonomy there is no such animal as "the U.S. consumer" or "the UK consumer", or indeed "the Russian consumer". There are rich consumers, few in number, but disproportionate in the gigantic slice of income and consumption they take. There are the rest, the "non-rich", the multitudinous many, but only accounting for surprisingly small bites of the national pie. Before the recession, it was relatively easy to ignore this concentration of wealth among an elite few. The wondrous inventions of the modern economy—Google, Amazon, the iPhone broadly improved the lives of middle-class consumers, even as they made a tiny subset of entrepreneurs hugely wealthy. And the less-wondrous inventions—particularly the explosion of subprime credit—helped mask the rise of income inequality for many of those whose earnings were stagnant. But the financial crisis and its long, dismal aftermath have changed all that. A multibillion-dollar bailout and Wall Street's swift, subsequent reinstatement of gargantuan bonuses have inspired a narrative of parasitic bankers and other elites rigging the game for their own benefit. And this, in turn, has led to wider-and not unreasonable-fears that we are living in not merely a plutonomy, but a plutocracy, in which the rich display outsize political influence, narrowly self-interested motives, and a casual indifference to anyone outside their own rarefied economic bubble.

单选题The second paragraph uses facts to develop the basic idea that______

单选题Text 3 In 1949, when the People's Republic of China was founded, China had just 207 higher educational institutions, and only 117,000 students. Today it has 1032 institutes, 3,021,100 students, and 402,500 teachers. Despite such progress, reforming China's higher education is currently an issue of widespread concern. Students in China's middle schools learn how to achieve high test scores so they can attend colleges and universities. This learning continues throughout their college lives. The subject specialties at China's higher educational institutions are divided carefully, with no cross - communication among the subjects. This has caused students' knowledge to be restricted to their major subject. Even though students study hard in the classroom, achieve high test scores, and solve academic problems easily, they lack creativity and a working knowledge of other fields. Many suffer a lack of character because such humanistic topics as morality and ethics are omitted from their studies. In the hope of improving the moral awareness of its college graduates, China is reforming its higher educational system, adding more humanistic content to strengthen students' individuality, humanitarianism and creativity. If successful, future Chinese college students will not only be experts in their fields, they also will have knowledge in a broad range of topics, respect the dignity and worth of all creatures, and care about the environment. The State Education Commission has finally decided to adjust college and university subject majors with the intent of increasing students' exposure to the humanities. This will be an important reform in China's higher education. Another serious problem is that courses and textbooks at China's institutions of higher learning are out of date and do not report the latest academic and scientific achievements. In 1996, 221 reforms on college course content were approved for agriculture, the liberal arts, science and engineering, medical science, finance and law. The third problem is that the administration, management, enrollment and distribution systems at China's educational institutions are holdovers from the planned economy, and were designed to support those economic conditions. As China transforms itself from a planned to a market economy, reform of these systems is needed urgently to support the demands of employers. In the past, China's colleges and universities were managed by the State Education Commission and various Chinese ministries. This approach created a large number of single—field institutions. Since 1996, several reforms have been put in place, such as merging single—field institutions into comprehensive universities with broader subject majors, granting educational institutions more autonomy, allowing enterprises to help fund colleges and in return recruit graduates for work, transferring control to local administrations as a way to better serve local economic development. A more mature higher education system is now taking a shape as China approaches the 21st century.

单选题Preliminary estimation puts the figure at around $110 billion, ______ the $160 billion the President is struggling to get through the Congress.

单选题Which of the following does the story lead you to believe?

单选题Ocean waves can cut imposing cliffs along coastlines.

单选题______in hospital, the patient kept in touch with the outside world by watching news programs on TV every day.

单选题Many workers were organized to clear away ______ remained of the World Trade Center. A. those B. that C. what D. where

单选题The talk might ______ for weeks before any concrete result is announced.

单选题The greatest invention of the 20th century is ______ computer.

单选题Seriously, (though), there's always (something you wish) you (have not done), but (what is done) cannot be undone.

单选题Mark Twain once observed that giving up smoking is easy. He knew, because he'd done it hundreds of times himself. Giving up for ever is a trifle more difficult, apparently, and it is well known that it is much more difficult for some people than for others. Why is this so? Few doctors believe any longer that it is simply a question of will power. And for those people that continue to view addicts as merely "weak", recent genetic research may force a rethink. A study conducted by Jacqueline Vink, of the Free University of Amsterdam, used a database called the Netherlands Twin Register to analyse the smoking habits of twins. Her results suggest that an individual's degree of nicotine dependence, and even the number of cigarettes he smokes per day, are strongly genetically influenced. The Netherlands Twin Register is a voluntary database that is prized by geneticists because they allow the comparison of identical twins (who share all their genes) with fraternal twins (who share half). In this case, however, Dr. Vink did not make use of that fact. For her, the database was merely a convenient repository of information. Instead of comparing identical and fraternal twins, she concentrated on the adult fraternal twins, most of whom had completed questionnaires about their habits, including smoking, and 536 of whom had given DNA samples to the register. The human genome is huge. It consists of billions of DNA "letters", some of which can be strung together to make sense (the genes), but many of which have either no function, or an unknown function. To follow what is going on, geneticists rely on markers they have identified within the genome. These are places where the genetic letters may vary between individuals. If a particular variant is routinely associated with a particular physical feature or a behaviour pattern, it suggests that a particular version of a nearby gene is influencing that feature or behaviour. Dr. Vink hopes that finding genes responsible for nicotine dependence will make it possible to identify the causes of such dependence. That will help to classify smokers better (some are social smokers while others are physically addicted) and thus enable "quitting" programmes to be customised. Results such as Dr. Vink's must be interpreted with care. Association studies, as such projects are known, have a disturbing habit of disappearing, as it were, in a puff of smoke when someone tries to replicate them. But if Dr. Vink really has exposed a genetic link with addiction, then Mark Twain's problem may eventually become a thing of the past.

单选题4 The evolution of sex ratios has produced, in most plants and animals with separate sexes, approximately equal numbers of males and females. Why should this be so? Two main kinds of answers have been offered. One is couched in terms of advantage to popula tion. It is argued that the sex ratio will evolve so as to maximize the number of meetings be tween individuals of the opposite sex. This is essentially a "group selection" argu- ment. The other, and in my view correct, type of answer was first put forward by Fisher in 1930. This "genetic" argument starts from the assumption that genes can influence the relative numbers of male and female offspring produced by an individual carrying the genes. That sex ratio will be favored which maximizes the number of descendants an indi vidual will have and hence the number of gene copies transmitted. Suppose that the popula tion consisted mostly of females, then an individual who produced sons only would have more grandchildren. In contrast, if the population consisted mostly of males, it would pay to have daughters. If, however, the population consisted of equal numbers of males and females, sons and daughters would be equally valuable. Thus a one-to-one sex ratio is the only stable ratio; it is an "evolutionarily stable strategy. " Although Fisher wrote before the mathematical theory of games had been developed, his theory incorporates the essen tial feature of a game that the best strategy to adopt depends on what others are doing. Since Fisher's time, it has been realized that genes can sometimes influence the chro mosome or gamete in which they find themselves so that the gamete will be more likely to participate in fertilization. If such a gene occurs on a sex-determining (X or Y) chromo some, then highly aberrant sex ratios can occur. But more immediately relevant to game theory are the sex ratios in certain parasitic wasp species that have a large excess of fe males. In these species, fertilized eggs develop into females and unfertilized eggs into males. A female stores sperm and can determine the sex of each egg she lays by fertilizing it or leaving it unfertilized. By Fisher's argument, it should still pay a female to produce equal numbers of sons and daughters. Hamilton, noting that the eggs develop within their host--the larva of another insect--and that the newly emerged adult wasps mate immedi ately and disperse, offered a remarkably cogent analysis. Since only one female usually eggs in a given larva, it would pay her to produce one male only, because this one could fertilize all his sisters on emergence. Like Fisher, Hamilton looked for an evolutionarily stable strategy, but he went a step further in recognizing that he was looking for a strate gy.

单选题A group of top Chinese scientists will ______.

单选题{{B}}Text 3{{/B}} Culture is the total sum of all the traditions, customs, belief and ways of life of a given group of human beings. In this sense, every group has a culture, however savage, undeveloped, or uncivilized it may seem to us. To the professional anthropologist, there is no intrinsic superiority of one culture ever another, just as to the professional linguist there is no intrinsic hierarchy among languages. People once thought of the languages of backward groups as savage, undeveloped forms of speech, consisting largely of grants and groans. While it is possible that language in ganeral began as a series of grunts and groans, it is a fact established by the study of "backward" languages that no spoken tongue answers that description today. Most languages of uncivilized groups are, by our most severe standards, extremely complex, delicate, and ingenious pieces of machinery for the transfer of ideas. They fall behind the Western languages not in their sound patterns or grammatical structures, which usually are fully adequate for all language needs, but only in their vocabularies, which reflect the objects and activities known to their speakers. Even in this department, however, two things are to be noted: 1. All languages seem to possess the machinery for vocabulary expansion, either by putting together words already in existence or by borrowing them from other languages and adapting them to their own system. 2. The objects and activities requiring names and distinctions in "backward" languages, while different from oars, are often surprisingly numerous and complicated. A western language distinguishes merely between two degrees of remoteness ("this" and "that"); some languages of the American Indians distinguish between what is close to the speaker, or the person addressed, or remote from both, or out of sight, or in the past, or in the future. This study of language, in turn, casts a new light upon the claim of the anthropologists that all cultures are to be viewed independently, and without ideas of rank or hierarchy.

单选题This question is ______ easy. A) extremely B) completely C) totally D) highly

单选题The man lost his______just because his secretary was ten minutes late.