(2013·安徽，21)From space, the earth looks blue.This is ________about seventy－one p - 高中英语试题 - 超级试练试题库

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题型：不详难度：来源：

(2013·安徽，21)From space, the earth looks blue.This is ________about seventy－one percent of its surface is covered by water.

A．why

B．how

C．because

D．whether

答案

解析

考查名词性从句。此处考查表语从句。根据句意：地球看起来是蓝色的。这是因为其表面71%是被水覆盖的。

核心考点

试题【(2013·安徽，21)From space, the earth looks blue.This is ________about seventy－one p】；主要考察你对句法等知识点的理解。[详细]

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