2. 外语
  3. A desert is a land【C1】______plants, animals, and people cannot get all the water they need because the climate is【C2】______too d

A desert is a land【C1】______plants, animals, and people cannot get all the water they need because the climate is【C2】______too d

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问题    A desert is a land【C1】______plants, animals, and people cannot get all the water they need because the climate is【C2】______too dry or too cold.【C3】______deserts have【C4】______than 10 inches of rainfall a year. There may be months or even years between one rainstorm and【C5】______. The rainwater quickly runs【C6】______the land, sinks into the sand or evaporates into the dry air.
   No matter how dry a desert may be, it is【C7】______to man. In some of the driest regions【C8】______has found valuable minerals. The discovery of petroleum, in particular,【C9】______great changes to the deserts. Oil is now the most important export of several desert countries in the Middle East, and it has been【C10】______in the Western Sahara. Saudi Arabia, Iraq and Kuwait are【C11】______called oil kingdoms.
   Man has changed the desert in many ways to make it a【C12】______place to live in. But the greatest problem of the deserts【C13】______. That problem is【C14】______water over large areas. Man is turning to the sea【C15】______water.
   Scientists are constantly【C16】______methods of【C17】______the salt from water so that it can be used in industry and agriculture. This is called desalinization. Perhaps the use of atomic power will make desalinization less expensive in the future. Some people believe that man will one day be able to【C18】______the climate and produce rainfall over the desert when it is wanted. This would be a simple【C19】______to the water problem, but we【C20】______much more about the atmosphere before that will be possible.
【C3】
选项 A、Most
B、Most of
C、All
D、The most
答案A
解析 本题考查限定词用法。most deserts是泛指“大多数沙漠”，所以不加冠词。most of后面要限定一个范围，通常加物主代词或the，如 most of my students，或most of the students in Class One。D选项中的 The most用在最高级中；C选项中的All太绝对，这种太绝对的选项我们一般很慎重。因此答案是A。
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