[考研类试卷]考研英语(阅读)模拟试卷2及答案与解析.doc
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1、考研英语(阅读)模拟试卷 2 及答案与解析Part ADirections: Read the following four texts. Answer the questions below each text by choosing A, B, C or D. (40 points)0 The Sex InsulatesIts not unusual to see women in powerful jobs. Three of the last four secretaries of state have been women, and Supreme Court nominee Son
2、ia Sotomayor is getting more media attention for her ethnicity than for her gender. Yet in the science, technology, engineering and math labor force, XX still trails XY. Why?Women are 37 percent less likely than men to earn science-related bachelors degrees, and they hold only a quarter of the jobs
3、in the field. In a new paper titled “Sex and Science“, economists Scott Carrell, Marianne Page and James West offer one explanation: Some women lag in science not because theyre womenbut because their professors arent.In their study, published by the National Bureau of Economic Research, the authors
4、 examine the performance of nearly 9,500 Air Force Academy students who were randomly assigned to their professors between 2000 and 2008. They found that women tend to receive lower grades than similarly skilled men in their introductory math and science classes, but that this gap diminishes by two-
5、thirds when female students are taught by female professors. The change is more dramatic for women who arrived at the Air Force Academy with high aptitude in math; when their professors are women, the gap in their performance disappears altogether. Such women are also 26 percent more likely to go on
6、 to major in science-related fields if all their initial math and science professors, as opposed to none, are women.This is not a case of female professors with a soft spot for female students. Science and math grades are determined by standardized tests, and the impact of the teachers gender disapp
7、ears in English and history courses. Also, many female students excel with male science teachers. But overall, there is something special about women and teaching in science something the researchers cant fully explain. “Do female professors serve as role models?“ They ask. “Do they teach in ways th
8、at female students find more accessible?“ Carrell, Page and West say they need more data to find answers. Lets get a female number-cruncherwith a female instructor in her vaston the case.1 Supreme Court nominee Sonia Sotomayor gets more media interest for her ethnicity than for her_.2 Women only occ
9、upy_of the science-related jobs.3 The study shows that the gender gap lessens when female students are taught by_.4 Science and math grades are determined not by teachers but by_.5 Researchers still cannot completely know the reason for the problem about women and_.5 Garbage RecycleIn 1993, New York
10、 State ordered stores to charge a deposit on beverage containers. Within a year, consumers had returned millions of aluminum cans and glass and plastic bottles. Plenty of companies were eager to accept the aluminum and glass as raw materials for new products, but because few could figure out what to
11、 do with the plastic, much of it wound up buffed in landfills. The problem was not limited to New York. Unfortunately, there were too few uses for second hand plastic.Today, One out of five plastic soda bottles is recycled in the United States. The reason for the change is that now there are dozens
12、of companies across the country buying discarded plastic soda bottles and turning them into fence posts, paint brushes, etc.As the New York experience shows, recycling involves more than simply separating valuable materials from the rest of the rubbish. A discard remains a discard until somebody fig
13、ures out how to give it a second life, and until economic arrangements exist to give that second life value. Without adequate markets to absorb materials collected for recycling, throwaways actually depress prices for used materials.Shrinking landfill space, and rising costs for burying and burning
14、rubbish are forcing local governments to look more closely at recycling. In many areas, the East Coast especially, recycling is already the least expensive waste management option. For every ton of waste recycled, a city avoids paying for its disposal, which, in parts of New York, amounts to savings
15、 of more than $ 100 per ton. Recycling also stimulates the local economy by creating jobs and trims the pollution control and energy costs of industries that make recycled products by giving them a more refined raw material.6 The returned plastic bottles in New York used to_.(A)end up somewhere unde
16、rground(B) be turned into raw materials(C) have a second life value(D)be separated from other rubbish7 It can be concluded from the passage that_.(A)rubbish is a potential remedy for the shortage of racy materials(B) local governments in the U.S. can expect big profits from recycling(C) recycling is
17、 to be recommended both economically and environmentally(D)landfills will still be widely used for waste disposal7 “Cleverness“ Charged Barbed Wire NetCurrent Group, a Germantown-based technology firm, has taken over an ordinary looking house in Bethesda and turned it into a laboratory tor smart-gri
18、d technology, the system the company believes will bring the nations electricity grids into the digital age.In the front yard stands a utility pole hooked up to a special transformer that connects the power lines to high-speed Internet. Hundreds of sensors attached to the lines monitor how power flo
19、ws through the home That information is then sent back to the utility company.The process lets a utility more efficiently manage the distribution of electricity by allowing two-way communication between consumers and energy suppliers via the broadband network on the power lines. Based on data they r
20、eceive from hundreds of homes, utilities can monitor usage and adjust output and pricing mresponse to demand. Consumers can be rewarded with reduced rates by cutting back on consumption during peak periods. And computerized substations can talk to each other so overloaded circuits hand off electrici
21、ty to those that axe not fully loaded, helping to prevent blackouts.Some utility companies have launched initiatives to give consumers data about their energy consumption habits in an effort to lower energy bills. Smart-grid technology takes such programs further by automating electricity distributi
22、on, which would make grids more reliable and efficient.By partnering with utilities, the company hopes to tap into $4. 5 billion in stimulus grants intended to encourage smart-grid development. When he announced the funding, President Obama pointed to a project in Boulder, Colo. , as an example of a
23、 successful smart-grid experiment. Current is one of the companies working on the project.Currents chief executive Tom Casey believes the technology will help utility companies better distribute electricity produced by renewable resources, such as solar panels or wind farms. “A smart grids system ca
24、n be paired up with the renewable resources so that when the renewable source is varying, the overall load can be varied as well,“ Casey told the House Select Committee on Energy Independence and Global Warming. “This will re-dace or eliminate the need for backup coal or gas-based power generation p
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