It is ________ he often fails in exams ________ makes his parents worried about
题型：不详难度：来源：
It is ________ he often fails in exams ________ makes his parents worried about him.| A．what；that. | B．that；what. | C．that；that. | D．because；that. |
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答案
| C |
解析
试题分析：考查主语从句和强调句型。强调句型的基本结构为：It is/was被强调成分that/who其它成分。其最大的特点是把it is/was…that/who…去掉以后，句子仍然是成立的。本题强调的是that引导的主语从句，在名词性从句中that只起引导作用，在句中不充当任何成分。句意：就是他经常考试不及格才让他的父母亲很担心他。故C正确。
点评：。强调句型的基本结构为：It is/was被强调成分that/who其它成分。其最大的特点是把it is/was…that/who…去掉以后，句子仍然是成立的。另外还要注意名词性从句的引导词的具体用法，what在句中做主语，宾语，宾语，表语等，that在句中不充当任何成分。 |
举一反三
It was _______ she was injured in the accident _______ she didn’t come to the party yesterday.| A．as; which | B．because; that | | C．since; why | D．for; that |
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It was not until she got home _______Jennifer had realized she had lost her keys.| A．where | B．that | C．when | D．before |
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| It was for this reason ________ her parents moved out of London and settled down in a mountain village. |
---We all wonder ____ the relationship between France and China is good again now?
---Because the two countries have common national benefits.| A．why it is that | B．why it is | C．that it is why | D．it is why |
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Mr. Green didn’t understand ________made his daughter so absent-minded.
A. how that was B what was it C. why it was that D. what it was that |
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