________ is known to all is that effective measures should be taken to deal with - 高中英语试题 - 超级试练试题库

题目

题型：不详难度：来源：

________ is known to all is that effective measures should be taken to deal with the problem of the overexploitation of our resources.

A．What	B．It
C．As	D．Which

答案

解析

选A　考查主语从句。分析句子结构可知，空处引导主语从句，且在从句中作主语，所以用what引导。注意区分以下结构：As is known to all, effective measures should be ...，其中As引导非限制性定语从句；It is known to all that effective measures should be ...，其中It为形式主语，真正的主语是that引导的主语从句。

核心考点

试题【________ is known to all is that effective measures should be taken to deal with】；主要考察你对句法等知识点的理解。[详细]

举一反三

He met Rachel at her college graduation ceremony in 2011, ________ he was later to marry.

A．which	B．when
C．where	D．whom

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The Olympics are like a huge stage ________ everyone makes every effort to achieve their dreams.

A．that	B．when
C．which	D．where

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I went to that fancy restaurant with my wife yesterday, ________ chefs are really brilliant.

A．when	B．which
C．who	D．whose

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Her son was accused of cheating by the police, ________ made it difficult for her to go to sleep.

A．what	B．as
C．which	D．where

题型：不详难度：| 查看答案

(2013·青岛一模)Scientists are still wondering ________ the Egyptians built the pyramids so long ago.

A．how it is that	B．how is it that
C．it is how that	D．that how it is

题型：不详难度：| 查看答案

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