单选题She______in the feet on her way home from work. A. was hurting B. is hurt C. hurts D. got hurt

单选题 There are few more sobering online activities than entering data into college-tuition calculators and gasping as the Web spits back a six-figure sum, But economists say families about to go into debt to fund four years of partying, as well as studying, can console themselves with the knowledge that college is an investment that, unlike many bank stocks, should yield huge dividends. A 2008 study by two Harvard economists notes that the "labor-market premium to skilr " —or the amount college graduates earned that's greater than what high-school graduates earned—decreased for much of the 20th century, but has come back with a vengeance since the 1980s. In 2005, the typical full-time year-round U.S. worker with a four-year college degree earned $ 50,900, 62% more than the $ 31,500 earned by a worker with only a high-school diploma. There's no question that going to college is a smart economic choice. But a look at the strange variations in tuition reveals that the choice about which college to attend doesn't come down merely to dollars and cents. Does going to Columbia University (tuition, room and board $ 49,260 in 2007-2008) yield a 40% greater return than attending the University of Colorado at Boulder as an out-of-state student( $ 35,542)? Probably not. Does being an out-of-state student at the University of Colorado at Boulder yield twice the amount of income as being an in-state students( $17,380) there? Not likely. No, in this consumerist age, most buyers aren't evaluating college as an investment, but rather as a consumer product—like a car or clothes or a house. And with such purchases, price is only one of many crucial factors to consider. As with automobiles, consumers in today's college marketplace have vast choices, and people search for the one that gives them the most comfort and satisfaction in line with their budgets. This accounts for the willingness of people to pay more for different types of experiences(such as attending a private liberal-arts college or going to an out-of-state public school that has a great marine-biology program). And just as two auto purchasers might spend an equal amount of money on very different cars, college students(or, more accurately, their parents)often show a willingness to pay essentially the same price for vastly different products. So which is it?

单选题(Under no circumstances) (he would) (give up) his (writing).

单选题At the Kyoto conference on global warming in December 1997, it became abundantly clear how complex it has become to work out international agreements relating to the environment because of economic concerns unique to each country. It is no longer (21) to try to forbid certain activities or to reduce (22) of certain substances. The global challenges of the inter-link between the environment and development increasingly (23) us to the core of the economic life of states. During the late 1980s we were able, through international agreements, to make deep (24) in emissions (25) the ozone layer. These reductions were made possible (26) the harmful substances could be replaced (27) negative effects on employment and the economies of states. Although the threat of global warming has been known to world for decades, we know that the effects of measures, (28) harsh measures taken in some countries, would be nullified if (29) countries do not control their emissions. Important and populous low- or medium-income countries are not (30) willing to undertake legal commitments about their energy uses. We must, (31) find a solution to the threat of global warming early in the 21st century. Such a (32) would require a degree of shared vision and common responsibilities new to humanity. Success lies in the force of imaginations, in imagining what (33) if we failed to act. Although many living in cold regions would welcome the global-warming effect of a warmer summer, (34) would cheer arrival of the (35) tropical diseases, especially where there has been none.

单选题Many a writer of newspaper articles ______ to writing novels. A. has turned B. have turned C. have been turned D. has been turned

单选题Since most, if not all learning occurs through ______, relating one observation to another, it would be strange indeed if the study of other cultures did not also illuminate the study of our town. A. assumptions B. experiments C. comparisons D. repetitions

单选题Of the three speech acts, linguists are most interested in the ______ because this kind of speech act is identical with the speaker"s intention.

单选题Most people ______.

单选题I ______ rather solve the problems in my farm myself than seek the help of other people. A. should B. shall C. would D. will

单选题Where would Miran probably go if he could leave the airport?

单选题Of the thousands of known volcanoes in the world, the______majority are inactive.

单选题[此试题无题干]

单选题EverymorningIgo______schoolbybike.A.theB.forC.toD.

单选题The ratio of the work done by machine______the work done on it is called the efficiency of the machine.

单选题Parts of Shakespeare's life continue to remain a mystery because ______. A. writers had no claim over their works B. the Great London Fire burned important documents C. people are not interested D. researchers do not have the expertise to find the facts

单选题A full-sized tripod is far too ______ to carry around. I find this pocket-sized one is much handier.

单选题Ever since the rise of industrialism, education has been______towards producing workers.

单选题He is honest. His actions are always ______ his words.