Throughout history has【C1】______ changed his physical environment in order to improve his【C2】______ of life. With the tools of t

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问题     Throughout history has【C1】______ changed his physical environment in order to improve his【C2】______ of life. With the tools of technology he has【C3】______many physical features of the earth. He has【C4】______ woodlands and prairies into farms and made lakes and reservoirs 【C5】______ of rivers for irrigation purposes or hydroelectric【C6】______. Man has also modified the face of the earth by【C7】______ marshes and cutting through mountains to【C8】______ roads and railways.
    However, man’s【C9】______ to the physical environment have not always had beneficial results. Today, 【C10】______ of the air and water is an increasing danger to the health of the【C11】______. Each day thousands of tons of gases come out of the exhausts of motor vehicles. 【C12】______ from factories pollutes the air of industrialized areas and the surrounding【C13】______ of the countryside. The pollution of water is equally harmful. The whole ecological【C14】______ of the sea is being changed and【C15】______ wastes have already made many rivers lifeless.
    Now【C16】______ protection is more pressing than ever before. As we know, massive destruction of the environment has brought about【C17】______ effects and even poses a great【C18】______ to man’s existence. Indifference to these problems will mean committing suicide. Therefore, effective【C19】______ should be taken and laws passed to【C20】______ the environment. Otherwise, man is certain to suffer from the serious consequences caused by this lack of care for his living surroundings.
【C20】

选项 A、create
B、conserve
C、harness
D、reserve

答案B

解析 语境搭配参见第109题注释,本句意为:因此,应采取有效的措施,制定一些法律来保护环境。因此答案可以是B,保护……以防受损或改变;例:We must conserve our woodlands for future generations.(我们必须为我们的后代保护好我们的林地);或preserve保护、保存……以防受损;例:We must encourage the planting of new trees and preserve our existing woodlands.(我们需鼓励植树造林,同时保护我们现有的林地)。
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