单选题Unless my room is warmer tonight, I'm going to______ to the hotel manager.

单选题As is the Chinese cook's custom, my mother always made______remarks about her own cooking.

单选题The word "overwhelming" in Line 1 Para. 2 is closest in meaning to ______.

单选题Why do some people regard the holiday season in western economies a treat?

单选题In ______ of Mr. Mainwaring's years of service, the company presented him with a gold watch. A. contradiction B. appreciation C. confrontation D. apprehension

单选题He wants to start his own business, but ______ handling payroll, government compliance, and benefits chores. A. loathe B. remark C. uphold D. systematize

单选题The explosion of a star is an awesome event. The most violent of these cataclysms, which produce supernovae, probably destroys a star completely. Within our galaxy of roughly 100 billion stars the last supernova was observed in 1604. Much smaller explosions, however, occur quite frequently, giving rise to what astronomers call novae and dwarf novae. On the order of 25 novae occur in our galaxy every year, but only two or three are near enough to be observed. About 100 dwarf novae are known altogether. If the exploding star is in a nearby part of the galaxy, it may create a "new star" that was not previously visible to the naked eye. The last new star of this sort that could be observed clearly from the Northern Hemisphere appeared in 1946. In these smaller explosions the star loses only a minute fraction of its mass and survives to explode again. Astrophysicists are fairly well satisfied that they can account for the explosions of supernovae. The novae and dwarf novae have presented more of a puzzle. I shall describe recent investigations that have provided important new information about these two classes of exploding star. The picture that emerges is quite astonishing. It appears that every dwarf nova--and perhaps every nova--is a member of a pair of stars. The two stars are so close together that they revolve around a point that lies barely outside the surface of the larger star. As a result the period of rotation is usually only a few hours and their velocities range upward to within a two-hundredth the speed of light, Astronomers use the term "cataclysmic variable" to embrace the three general classes of exploding star: dwarf novae, novae, and supernovae. A cataclysmic variable is defined as a star that suddenly and unpredictably increases in brightness by a factor of at least 10. Dwarf novae are stars that increase in brightness by factor of 10 to 100 within a period of several hours and decline to their former brightness in two or three days. In this period they emit some 1038 to 1039 ergs of energy. At maximum brilliance a dwarf nova shines about as intensely as our sun, previously it had been only about a hundredth as bright. The number of outbursts ranges anywhere from 3 to 30 a year, but for any one star the intervals have a fairly constant value. Moreover, the maximum bright ness from outburst to outburst is the same within a factor of two for a given star. The dwarf novae are often referred to, after their prototypes, as U Geminornm or SS Cygni stars. (The stars of each constellation are designated by letters or numbers.) A subgroup of dwarf novae, called Z Camelopardalis stars, do not always descend to minimum bright ness between outbursts but may stay at some intermediate level for several months.

单选题None of these______ is an end in itself. They are tentative, experimental. They are movements not towards something definite but away from something definite.

单选题According to Fries and Crapo, sound health choice should be based on __________.

单选题The more people are jammed together, the more ______and irrational they become. (2011年南京师范大学考博试题)

单选题The author’s tone in the essay is _________ .

单选题The girl could not ______ the temptation of the piece of chocolate and told a lie.

单选题The expression "a CD-like investment" (in boldface in Paragraph 5) most probably refers to an investment ______.

单选题{{B}}Passage Four{{/B}} Next to Sir Andrew in the clubroom sits Captain Sentry, a gentleman of great courage, good understanding, but invincible modesty. He is one of those that deserve very well, but are very awkward at putting their talents within the observation of such as should take notice of them. He was some years a captain, and behaved himself with great gallantry in several engagements and at several sieges; but having a small estate of his own, and being next heir to Sir Roger, he has quitted a way of life in which no man can rise suitably to his merit, who is not something of a courtier as well as a soldier. I have heard him often lament that in a profession where merit is placed in so conspicuous a view, impudence should get the better of modesty. When he had talked to this purpose, I never heard him make a sour expression, but frankly confess that he left the world because he was not fit for it. A strict honesty, and an even regular behavior, are in themselves obstacles to him that must press through crowds, who endeavour at the same end with himself, the favor of a commander. He will, however, in his way of talk excuse generals for not disposing according to men's deserts, or inquiring into it; for, says he, that the great man who has a mind to help me, has as many to, break through to come at me, as I have to come at him: therefore he will conclude that the man who would make a figure, especially in a military way, must get over all false modesty, and assist his patron against the importunity of other pretenders, by a proper assurance in his own vindication. He says it is a civil cowardice to be backward in asserting what you ought to expect, as it is a military fear to be slow in attacking when it is your duty. With this candour does the gentleman speak of himself and others. The same frankness runs through all his conversation. The military part of his life has furnished him with many adventures, in the relation of which he is very agreeable to the company; for he is never overbearing, though accustomed to command men in the utmost degree below him; nor ever too obsequious, from a habit of obeying men highly above him.

单选题Adolescents are taking longer to become fully productive members of society, Reed Larson, professor of human development, University of Illinois, Champaign, told the World Future Society, Bethesda, Md. "What we expect of young people is【C1】______," he argued. They must go to school for 12 years or longer without any【C2】______that their education will mean career success or relevance when they become adults. 【C3】______they do so without financial rewards, accept an identity【C4】______by society, and delay starting a family, all of【C5】______keeps adolescents in a kind of indeterminate state for years. Larson says that "There should be way stations along the climb【C6】______adulthood that allow young people to rest, gather themselves, and consider【C7】______. " The success of government, business, and private life in the next 50 years【C8】______it. Education, literacy, and versatile interpersonal skills【C9】______the list of necessary preparations for adulthood. Young people negotiating the complex worlds of home, work, and school【C10】______use these skills in order to do so【C11】______and competently. "The adolescent who is able to【C12】______in only one world is increasingly【C13】______for adult life," he warns. As the time spent on the road to adulthood increases, so【C14】______the danger that more youths will fall by the wayside. New and increased opportunities and initiatives will keep more youngsters focused, 【C15】______a smarter, more-versatile generation able to cope with the emerging global, high-tech world.

单选题Psychologists take opposing views of how external rewards, from warm praise to cold cash, affect motivation and creativity. Behaviorists, who study the relation between actions and their consequences, argue that rewards can improve performance at work and school. Cognitive researchers, who study; various aspects of mental life, maintain that rewards often destroy creativity by encouraging dependence on approval and gifts from others. The latter view has gained many supporters, especially among educators. But the careful use of small monetary rewards sparks creativity in grade-school children, suggesting that properly presented inducements indeed aid inventiveness, according to a study in the June Journal of Personality and Social Psychology. "If kids know they're working for a reward and can focus on a relatively challenging task, they show the most creativity," says Robert Eisenberger of the University of Delaware in Newark, "But it's easy to kill creativity by giving rewards for poor performance or creating too much anticipation for rewards." A teacher who continually draws attention to rewards or who hands out high grades for ordinary achievement ends up with uninspired students, Eisenberger holds. As an example of the latter point, he notes growing efforts at major universities to tighten grading standards and restore failing grades. In earlier grades, the use of so-called token economies, in which students handle challenging problems and receive performance-based points toward valued rewards, shows promise in raising effort and creativity, the Delaware psychologist claims.