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  3. The pollution of the earth’ s soil and water has become an issue of great concern. Until recently, most of that concern has focu

The pollution of the earth’ s soil and water has become an issue of great concern. Until recently, most of that concern has focu

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问题    The pollution of the earth’ s soil and water has become an issue of great concern. Until recently, most of that concern has focused on the land【B1】______of the planet, where pollution directly affects people in their daily lives. Now, however, we have begun to realize that marine pollution is【B2】______important. According to S. A. Patin, marine pollution is the situation that occurs when people introduce into the seas substances【B3】______to life, health, resources, activities or comforts. Marine pollution is far from new. For over a million years, people have thought of the sea as a【B4】______place to throw their garbage. And it is true that the sea has a great【B5】______for absorbing organic wastes. Some of these wastes are eaten directly by the larger fishes. Others quickly【B6】______into a kind of organic soup that provides food to【B7】______species of single-celled plant and animal life.
   As civilizations grew, more different pollutants were released into the seas. Still, this pollution did not really threaten the marine environment. The seas seemed capable of【B8】______with anything that people could throw at them. This situation changed, however, when suddenly factories began pouring enormous quantities of materials into the seas. Especially in some coastal areas near large cities, ocean pollution began to【B9】______marine life. For the first time, the oceans began to fail in their ability to【B10】______humanity’ s wastes.
   A. equally D. positive G. coping J. harmful M, threaten
   B. effect E. support H. convenient K. capacity N. countless
   C. portion F. lose I. approximately L. recycle O. dissolve
【B10】
选项
答案L
解析 根据空前的不定式符号to可知，空处应填动词原形，不定式短语作ability的后置定语。符合要求的选项有E、F、L。文章第二段主要讲述的是海洋对废物具有净化能力，而本段讲述的是海洋失去了这种能力，海洋污染开始对海洋生物造成威胁。由此可推知，这里说的是“海洋第一次开始失去其回收利用人类废物的能力”。故选L。
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