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  3. Disposing of waste has been a problem since humans started producing it. As more and more people choose to live close together i

Disposing of waste has been a problem since humans started producing it. As more and more people choose to live close together i

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问题         Disposing of waste has been a problem since humans started producing it. As more and more people choose to live close together in cities, the waste disposal problem becomes increasingly difficult.
        During the eighteenth century, it was usual for several neighboring towns to get together to select a faraway spot as a dump site. Residents or trash haulers (垃圾托运者) would transport household rubbish, rotted wood, and old possessions to the site. Periodically some of the trash was burned and the rest was buried. The unpleasant sights and smells caused no problem because nobody lived close by. Factories, mills, and other industrial sites also had waste to be disposed of. Those located on rivers often just dumped the unwanted remains into the water. Others built huge burners with chimneys to deal with the problem.
        Several facts make these choices unacceptable to modern society. The first problem is space. Dumps, which are now called landfills, are most needed in heavily populated areas. Such areas rarely have empty land suitable for this purpose. Property is either too expensive or too close to residential neighborhoods. Long distance trash hauling has been a common practice, but once farm areas are refusing to accept rubbish from elsewhere, cheap land within trucking distance, of major city areas is non-existent. Awareness of pollution dangers has resulted in more strict rules of waste disposal. Pollution of rivers, ground water, land and air is a price people cannot longer pay to get rid of waste. The amount of waste, however, continues to grow.
        Recycling efforts have become commonplace, and many towns require their people to take part. Even the most efficient recycling programs, however, can hope to deal with only about 50 percent of a city’s reusable waste.
The main purpose of writing this article is to____________.
选项 A、draw people’s attention to waste management
B、warn people of the pollution dangers we are facing
C、call on people to take part in recycling programs
D、tell people a better way to get rid of the waste
答案C
解析 写作目的题。根据文章最后一段可知，作者希望人们能参与到回收利用垃圾的运动中来。A项关键词waste management与waste disposal不一致；B项的pollution dangers太宽泛；关于D项，如果作者只是想告诉读者一种更好的处理垃圾的方式，没必要长篇大论论述垃圾处理问题的严峻性，故D也不准确。所以选C。
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