[外语类试卷]大学英语四级模拟试卷399及答案与解析.doc
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1、大学英语四级模拟试卷 399及答案与解析 一、 Part I Writing (30 minutes) 1 For this part, you are allowed 30 minutes to write a composition entitled An Unforgettable Picnic. You should write at least 120 words following the outline given below: 1. 简述一次与朋友或同学难忘的野餐 2描述当时野餐 的情况 3谈谈自己的感受和体会 二、 Part II Reading Comprehension
2、(Skimming and Scanning) (15 minutes) Directions: In this part, you will have 15 minutes to go over the passage quickly and answer the questions attached to the passage. For questions 1-7, mark: Y (for YES) if the statement agrees with the information given in the passage; N (for NO) if the statement
3、 contradicts the information given in the passage; NG (for NOT GIVEN) if the information is not given in the passage. 1 Americas Top 5 Cleanest Cities What Is a Clean City? Ideally, its a place where the air quality is good, the water is safe to drink, and factories arent dumping harmful chemical wa
4、ste into the environment. Its also a place where you look up and down streets that are free of garbage, and stroll through parks without wading through litter. San Francisco Background: Once a prominent shipping and manufacturing center, San Francisco now has booming financial and business sectors.
5、Since 1980, the citys population has increased by more than a third and its per capita income ranks among the nations highest. Few places have a citizenry that is more environmentally conscious. Problems: Like nearly every traffic-clogged urban California area, San Francisco has struggled with high
6、emissions of greenhouse gases. Its Hunters Point area is home to two polluting power plants and a highly contaminated Naval Shipyard. In 2002, a national report found that while San Franciscos source water was safe, its tap water contained high levels of a cancer-causing pollutant known as TTHM. Sol
7、utions: The citys Environment Department-something many municipalities lack-is seeking to close the power plants at Hunters Point, and the federal EPA is overseeing a massive cleanup of the shipyard there. Meanwhile, San Francisco is in the forefront of efforts to promote the use of clean-air vehicl
8、es, with its public transit leading the way. The citys bus fleet includes over 700 electric-drive vehicles, with plans to convert all the buses to this clean-air technology by 2020. As for concerns about its drinking water, San Francisco responded by modifying its water treatment process, which brou
9、ght the TTHM levels back down into the safe zone. Finally, the local government is finding ways to push energy savings. Columbus, Ohio Background: Ohios capital, according to the latest census, was the only major city in the state to grow in population. And Columbuss geographical expansion continues
10、. Its economy is light on industry-less than 12% of its job force works in the manufacturing sector. The big growth has been in financial and insurance businesses, as well as retail. Meanwhile, per capita income here is slightly below our 50-city average. Problems: Columbuss steady development has m
11、ade it tough to keep the citys watersheds clean. Also, an aging storm water and sewage system has caused overflows and backups in recent years. Litter has been a manageable problem, although Columbus has a recycling rate of just 4%, which Mayor Michael Coleman calls “pitiful.“ And finally, the late
12、1990s were marked by a sudden increase in ugly graffiti (涂鸦 ) on both public and private property. Solutions: The mayor recently unveiled a new initiative, “Get Green Columbus“, which established an office of Environmental Stewardship. Also underway is a program to update the sewage and storm water
13、systems. To spruce up unsightly areas, Columbus has committed to removing graffiti within two days of its appearance. Through the citys Neighborhood Pride program, a handful of communities each year get a solid week of concentrated cleanup, including tree trimming (修剪 ), bulk trash pickup and litter
14、 removal. Buffalo, New York Background: Long known as a Rust Belt City where steel was king, Buffalo was hit hard when that industry went into steep decline more than two decades ago. As steel plants shut down, Buffalo was forced to rebuild its economy from the ground up. But by leveraging its asset
15、s, including a low cost of living and cheap, clean hydroelectric energy generated by nearby Niagara Falls, Buffalo has begun luring new, non-manufacturing businesses to the area. Problems: A heavily polluted Buffalo River, acres of brown-fields, dwindling population, shrinking tax base and fiscal pr
16、oblems meant drastic cuts in city services-including cleaning. As a result, huge trash piles often accumulated in front of homes, sometimes going uncollected for days on end. At the same time, Buffalo was struggling with a sizable rat trouble. Solutions: Buffalo has made great strides in containing
17、and cleaning up brown fields and contaminated sites. Meanwhile, plans are underway to turn part of the former Bethlehem Steel site into a wind farm that will generate clean power for businesses and residents. The state is also overseeing a Buffalo River cleanup, already successful enough to draw boa
18、ters and fishermen back to the waterway. As for the trash problems, Buffalo undertook an award-winning restructuring of its garbage collection system. A fleet of 13 high-tech street sweepers, deployed 24 hours a day during non-winter months, now helps keep the streets clear of debris. And the city h
19、as dramatically curbed the rat problem by distributing large, securely covered garbage bins to every residence in the city. San Jose, California Background: This areas booming high-tech business during the 1980s and 1990s earned it the name Silicon Valley. Numerous semiconductor and computer chip ma
20、nufacturers brought in huge numbers of highly educated workers, driving up house values and living costs. Then the dot-com bust hit, and San Jose suddenly lost 200,000 jobs. Now the city is seeking to reinvent itself as a center for innovation and research in diverse fields. Problems: In the early 1
21、980s, a leaking underground storage tank was found to be polluting the drinking water of 65,000 people near a semiconductor plant. Besides the high-tech contamination, the Valleys rapid growth resulted in extensive sprawl, which means traffic and air pollution. Solutions: The widespread pollution ga
22、ve rise to a strong grass-roots environmental movement that pressured industry to clean up its mess. Industry responded by going the extra mile, setting higher standards for itself than required. The EPA, meanwhile, is overseeing the containment and cleanup of the Superfund sites. Because of the gro
23、undwater pollution, the Santa Clara Valley Water District became a national leader in testing and protecting drinking water. Portland, Oregon Background: Portland, long an important port and shipbuilding center, now also has a burgeoning high-tech sector, and a robust manufacturing base in paper, me
24、tal products and sportswear. Nonetheless, the per capita income is below the average for the 50 cities in our analysis. Problems: The sewer system is ancient and poorly designed, combining storm water runoff with sewage in the same piping system. Industries in Multnomah County, Portlands home, conti
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