单选题阅读下面短文，请从短文后所给各题的4个选项（A、B、C、D）中选出1个最佳选项，并在答题卡相应位置上将该项涂黑。The Early Life of Beethoven　　At an early age, Beethoven took an interest in music.His father taught him day and night.Without doubt, the child w

单选题 Directions: For this part, you are allowed 30 minutes to write an essay on the remark 'Education is a progressive discovery of our own ignorance.' You should write at least 150 words but no more than 200 words. Write your essay on Answer Sheet 1.

单选题He has failed me so many times that I no longer have any ______ in what he promises.

单选题What's the writer's purpose in giving an example of the man?

单选题She ______ to book a seat on the next flight.

单选题A business lunch can be viewed as successful if______.

单选题艺术设计中，形式法则的运用是获得形式美的一种( )。

单选题Everybody likes him. He is very ______ with all his colleagues. A. popular B. familiar C. close D. vulgar

单选题The university authorities are seriously considering abandoning the traditional ______ class. A. fifth minutes B. fifty minutes C. fifty-minute D. fifty minute's

单选题 Which of the italicized parts functions as an object?

单选题The writer is amazed by the black spider' s ______.

单选题The writer went to Fuji to ______.

单选题Professor Smith had a little trouble_____data for his research.

单选题It seems oil ______ from this pipe for some time. We'll have to take the machine apart to put it right. A. had leaked B. is leaking C. leaked D. has been leaking

单选题Americans are often contrasted with the rest of the world in terms of material possessions. We are accused of being materialistic, gadget crazy. And, as a matter of fact, we have developed material things for some very interesting reasons. Lacking a fixed class system and having all extremely mobile population, Americans have become highly sensitive to how others make use of material possessions. We use everything from clothes to houses as a highly evolved and complex means of ascertaining each other's status. Ours is a rapidly shifting system in which both styles and people move up or down. For example: The Cadillac (卡迪拉克) ad men feel that not only is it natural but quite insightful of them to show a picture of a Cadillac and a well-turned out gentleman in his early fifties opening the door. The caption (标题) underneath reads, "You already know a great deal about this man. " Following this same pattern, the head of a big union spends an excess of $100, 000 furnishing his office so that the president of United States Steel cannot look down on him. Good materials, large space, and the proper surroundings signify that the people who occupy the premises (建筑物及其周围所属土地) are solid citizens, that they are dependable and successful. The French, English, and the Germans have entirely different ways of using their material possessions. What stands for the height of dependability and respectability with the English would be old-fashioned and backward to us. The Japanese take pride in often inexpensive but tasteful arrangements that are used to produce the proper emotional setting. Middle East businessmen look for something else-family, connections, friendship. They do not use the furnishings of their office as part of their status system; nor do they expect to impress a client by these means or to fool a banker into lending more money than he should. They like good things, too, but feel that they, as persons, should be known and not judged solely by what the public sees. One of the most common criticisms of American relations abroad, both commercial and governmental, is that we usually think in terms of material things. "Money talks," says the American, who goes on talking the language of money abroad, in the belief that money talks the same language all over the world. A common practice in the United States is to try to buy loyalty with high salaries. In foreign countries, this maneuver almost never works, for money and material possessions stand for something different there from they do in America.

单选题The only safe way of distinguishing between edible and poisonous mushrooms is to learn to ______ the individual species.

单选题 A massive pool of warm ocean water is causing changes in the atmosphere that could produce unusual weather around the world in the next few months, the US National Weather Service reported on Monday. As a result of this phenomenon, known as El Nino, more rainfall than normal is likely this winter across some areas of the United States, with unusually warm or cold weather in other parts of the country. Currently the phenomenon is marked by a warm pool of water along the equator extending from the International Date Line nearly to the coast of South America. That water is nearly 4 degrees Fahrenheit above normal, explained Vernon Kousky of the climate center. This warm water 'spreads almost a quarter of the way around the globe. So it's massive and it has an impact on our weather. It has a global influence.., because it disturbs the atmosphere', said Dave Rodenhuis, director of the climate center. 'El Nino is probably the most important climate event beyond the annual cycle of seasons', he added. Because the changes tended to be first noticed around Christmas, the phenomenon was given the name El Nino, which is Spanish for child, a term often used to refer to the baby Jesus. The phenomenon occurs every three to five years, sometimes in a mild form and sometimes strongly affecting weather patterns worldwide. Details of its cause are not fully understood, but when it occurs, unusually warm air can be pumped into Canada, Alaska and the northern United States. At the same time, conditions tend to be wetter than normal along the US Southeast Coast and the Gulf of Mexico. And the Atlantic and Caribbean hurricane season tends to be milder than usual. The strong El Nino of 1982-1983 was blamed for worsening the devastating drought in Africa, causing a series of severe winter storms to come ashore in California, spawning the first typhoon to strike French Polynesia in 75 years—followed by five more in five months—deluging Peru and Ecuador with torrential rains and promoting the worst drought in two centuries in Australia. Overall damage was estimated at between ＄2 billion and ＄8 billion by a United Nations analysis and the death toll topped 1,500 worldwide.

单选题It may be five to ten years______we can test this medicine on human patients.

单选题Every chemical change either results from energy being sued to produce the change, or causes energy to be ______ in some form. A. given off B. put out C. set off D. used up