2. 外语
  3. " Two hundred eight million, two hundred nine million, two hundred ten million..." That is the sound of solid waste hitting the

" Two hundred eight million, two hundred nine million, two hundred ten million..." That is the sound of solid waste hitting the

admin2014-01-13  63
问题     " Two hundred eight million, two hundred nine million, two hundred ten million..." That is the sound of solid waste hitting the bottom of garbage cans all over United States in 1996. Solid wastes are materials that are discarded or thrown away after use by consumers and businesses. This does not include fluid materials. During that year, Americans threw away 210 million tons(about 43 pounds/20 kilograms per person daily)of garbage. We throw away 12. 4 million tons of glass and about 80 million tons of paper products. America also throws away large amounts(in tons)of food scraps, yard wastes, plastics, sludge from sewage treatment plants, and other materials. That is almost a mountain of garbage.
    Even though we make an effort to recycle and compost our solid waste, the amount of how to keep it from polluting our environment. If solid waste is disposed of incorrectly, it can contaminate our surface and underground water supplies. Currently, our municipal waste or waste collected by our cities and towns, goes to landfills. Today, about 85% our garbage goes to landfills or garbage dumps. This waste must be treated to keep rats, flies and other animals from building their home in the landfills. The treat also prevents the growth of bacteria and other organism that carry diseases. So, how do we handle this mountain of garbage? Scientists have come up with different methods for handling our waste problem.
    One type of waste disposal called sanitary landfill was first used in Fresno California, in 1937. In sanitary landfill, the solid waste is spread in thin layers that compacted and covered with a layer of earth. This is a more expensive method, but it takes away the hazards that are caused by landfills. It also allowed the land to be used for building or recreation. The negative of the landfills is that it’s tough to find open land and this process is very expensive. The land also needs its water sources protected so that the water will not pollute the water supply. Landfill(water dumps)and sanitary landfills rely on the natural biodegradability of the solid wastes. Solid wastes are biodegradable if they can decay or break down through the action of living organisms and return to the earth. However certain materials take longer to decay than others, and some materials do not decay or decompose at all. Scientists need to find other methods of waste disposal. Incineration and recycling are methods that are currently in use today.
From the article we can infer that______.
选项 A、treatment of the solid is a hard nut to crack
B、solution for proper disposal will be found soon
C、California set a good example in solid waste in 1930s
D、the government remains confident about the solid waste
答案A
解析 信息归纳题。文章第二段首句提及尽管努力回收固体废物，但数量仍不断增加，最大的问题是在哪儿放置固体废物以及如何防止环境被污染。由此可知，处理垃圾是个棘手的问题，C选项中指出加利福尼亚州为处理固体垃圾树立了一个好榜样，而文中提及了这种办法虽然解决一定的问题，但还有其局限性。故答案为A。
转载请注明原文地址:https://www.kaotiyun.com/show/3ehO777K
0

考博英语

相关试题推荐
随机试题
最新回复(0)