【考研类试卷】北京师范大学2012年真题及答案解析.doc
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1、北京师范大学 2012 年真题及答案解析(总分:100.00,做题时间:90 分钟)一、Part Listening Com(总题数:0,分数:0.00)二、Part Reading Compr(总题数:0,分数:0.00)三、Passage One(总题数:1,分数:10.00)In 1900 the United States had only three cities with more than a million residentsNew York, Chicago, and Philadelphia. By 1930, it had ten giant metropolises.
2、The newer ones experienced remarkable growth, which reflected basic changes in the economy. Line The population of Los Angeles (114,000 in 1900) rose spectacularly in the early decades of the twentieth century, increasing a dramatic 1,400 percent from 1900 to 1930. A number of circumstances contribu
3、ted to the meteoric rise of Los Angeles. The agricultural potential of the area was enormous if water for irrigation could be found, and the city founders had the vision and dating to obtain it by constructing a 225-mile aqueduct, completed in 1913, to tap the water of the Owens River. The city had
4、a superb natural harbor, as well as excellent rail connections. The climate made it possible to shoot motion pictures year-round; hence Hollywood. Hollywood not only supplied jobs; it disseminated an image of the good life in Southern California on screens all across the nation. The most important s
5、ingle industry powering the growth of Los Angeles, however, was directly linked to the automobile. The demand for petroleum to fuel gasoline engines led to the opening of the Southern California oil fields, and made Los Angeles North America“s greatest refining center. Los Angeles was a product of t
6、he auto age in another sense as well: its distinctive spatial organization depended on widespread private ownership of automobiles. Los Angeles was a decentralized metropolis, sprawling across the desert landscape over an area of 400 square miles. It was a city without a real center. The downtown bu
7、siness district did not grow apace with the city as a whole, and the rapid transit system designed to link the center with outlying areas withered away from disuse. Approximately 800,000 cars were registered in Los Angeles County in 1930, one per 2.7 residents. Some visitors from the east coast were
8、 dismayed at the endless urban sprawl and dismissed Los Angeles as a mere collection of suburbs in search of a city. But the freedom and mobility of a city built on wheels attracted floods of migrants to the city.(分数:10.00)(1).What is the passage mainly about?(分数:2.00)A.The growth of cities in the U
9、nited States in the early 1900“sB.The development of the Southern California oil fieldsC.Factors contributing to the growth of Los AngelesD.Industry and city planning in Los Angeles(2).The author characterizes the growth of new large cities in the United States after 1900 as resulting primarily from
10、 _.(分数:2.00)A.new economic conditionsB.images of cities shown in moviesC.new agricultural techniquesD.a large migrant population(3).The word “meteoric“ in Line 6 is closest in meaning to _.(分数:2.00)A.rapidB.famousC.controversialD.methodical(4).According to the passage, the most important factor in t
11、he development of agriculture around Los Angeles was the _.(分数:2.00)A.influx of “new residents to agricultural areas near the city“B.construction of an aqueductC.expansion of transportation facilitiesD.development of new connections to the city“s natural harbor(5).The visitors from the east coast me
12、ntioned in the passage thought that Los Angeles _.(分数:2.00)A.was not accurately portrayed by Hollywood imagesB.lacked good suburban areas in which to liveC.had an excessively large populationD.was not really a single city四、Passage Two(总题数:1,分数:10.00)Imagine eating everything delicious you want with
13、none of the fat. That would be great, wouldn“t it? New “fake fat“ products appeared on store shelves in the United States recently, but not everyone is happy about it. Makers of the products, which contain a compound called olestra, say food manufacturers can now eliminate fat from certain foods, Cr
14、itics, however, say that the new compound can rob the body of essential vitamins and nutrients and can also cause unpleasant side effects in some people. So it is up to consumers to decide whether the new fat-free products taste good enough to keep eating. Chemists discovered olestra in the late 196
15、0s, when they were searching for a fat that could be digested by infants more easily. Instead of finding the desired fat, the researchers created a fat that can“t be digested at all. Normally, special chemicals in the intestines “grab“ molecules of regular fat and break them down so they can be used
16、 by the body. A molecule of regular fat is made up of three molecules of substances called fatty acids. The fatty acids are absorbed by the intestines and bring with them the essential vitamins A, D, E and K. When fat molecules are present in the intestines with any of those vitamins, the vitamins a
17、ttach to the molecules and are carried into the bloodstream. Olestra, which is made from six to eight molecules of fatty acids, is too large for the intestines to absorb. It just slides through the intestines without being broken down. Manufacturers say it“s that ability to slide unchanged through t
18、he intestines that makes olestra so valuable as a fat substitute. It provides consumers with the taste of regular fat without any bad effects on the body. But critics say olestra can prevent vitamins A, D, E, and K from being absorbed. It can also prevent the absorption of carotenoids, compounds tha
19、t may reduce the risk of cancer, heart disease, etc. Manufacturers are adding vitamins A, D, E and K as well as carotenoids to their products now. Even so, some nutritionists are still concerned that people might eat unlimited amounts of food made with the fat substitute without worrying about how m
20、any calories they are consuming.(分数:10.00)(1).We learn from the passage that olestra is a substance that _.(分数:2.00)A.contains plenty of nutrientsB.renders foods calorie-free while retaining their vitaminsC.makes foods easily digestibleD.makes foods fat-free while keeping them delicious(2).The resul
21、t of the search for an easily digestible fat turned out to be _.(分数:2.00)A.commercially uselessB.just as anticipatedC.somewhat controversialD.quite unexpected(3).Olestra is different from ordinary fats in that _.(分数:2.00)A.it passes through the intestines without being absorbedB.it facilitates the a
22、bsorption of vitamins by the bodyC.it helps reduce the incidence of heart diseaseD.it prevents excessive intake of vitamins(4).What is a possible effect of olestra according to some critics?(分数:2.00)A.It may impair the digestive systemB.It may affect the overall fat intakeC.It may increase the risk
23、of cancerD.It may spoil the consumers“ appetite(5).Why are nutritionists concerned about adding vitamins to olestra?(分数:2.00)A.It may lead to the over-consumption of vitaminsB.People may be induced to eat more than is necessaryC.The function of the intestines may be weakenedD.It may trigger a new wa
24、ve of fake food production五、Passage Three(总题数:1,分数:10.00)A “scientific“ view of language was dominant among philosophers and linguists who affected to develop a scientific analysis of human thought and behavior in the early part of this century. Under the force of this view, it was perhaps inevitabl
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