(2013·高考安徽卷)From space,the earth looks blue.This is ________ about seventyone p
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(2013·高考安徽卷)From space,the earth looks blue.This is ________ about seventyone percent of its surface is covered by water.A.why | B.how | C.because | D.whether |
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答案
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解析
选C。本题考查表语从句的引导词。句意:从太空看,地球是蓝色的。这是因为它表面大约71%被水所覆盖。首先分析前后两句之间的逻辑关系,此处为“前果后因”,使用because,故选C项。because和why均可引导表语从句,解题时要弄清前后句之间的逻辑关系——是“前因后果”还是“前果后因”。“前因后果”使用why,“前果后因”使用because。 |
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