（新教材）高二英语上册专项练习 主语从句（答案）.docxVIP

2017年高考“最后三十天”专题透析 2017年高考“最后三十天”专题透析 好教育云平台--教育因你我而变PAGE 4 好教育云平台--教育因你我而变 主语从句 知识梳理 主语从句 1. 主语从句在复合句中充当主语，大多数主语从句都可以用it作形式主语而把主语从句置于句尾。 2. that引导主语从句时可用it作形式主语，that不可省；what引导的主语从句表示“……的东西”时，一般不用it作形式主语；whatever，whoever，whichever一般也不用it作形式主语。 主语从句的引导词 引导词 作用 引导词 作用 that 无词义，在从句中不充当成分，但不能省略 how 多么，怎样，作方式状语或程度状语 who 谁，作主语、宾语 when 何时，作时间状语 whom 谁，作宾语 where 在哪儿，作地点状语 what 什么，可作主语、宾语、表语、定语 why 为什么，作原因状语 which 哪一个，哪些，作主语、宾语、定语 whether 是否 主语从句的特殊用法 （1）主语从句与定语从句的转换 All that is needed has been bought. 所有需要的都买了。 （2）几个特殊句型之间的转换 It is known to all that China has joined the WTO. As is known to all, China has joined the WTO. What is known to all is that China has joined the WTO. 众所周知，中国已加入WTO。 从句作主语时，句子谓语动词的单复数问题。 (1)从句作主语时，谓语动词一般用单数。 That they are not going to the cinema is a big surprise to us. 他们不去看电影，这使我们感到很惊讶。 (2)what引导的从向作主语，谓语动词一般用单数;若从句谓语或从句后的表语是复数形式，则谓语动词常用复数。 What she said is wrong.她所说的是错误的。 练习： 1. _________ I like about him is that he is really witty and bubbly.（用适当的词填空） 2. Surprisingly, ______ began as nothing important in public affairs has grown into a social movement. (用适当的词填空) 3. ________ many scientists believe is that the continued presence of water allowed the earth to dissolve harmful gases and acids into the oceans and rivers.（用适当的单词填空） 4. He is shy and quiet. However, ____ he said at the meeting surprised everybody present. (用适当的词填空) 5. ____________ we will go camping or not depends on the weather. (用适当的词填空) 6. It is recognised ________ the environmental pollution has become more and more serious.（用适当的单词填空） 7. ________ developing countries need to do is to stop poverty by fighting the causes of it. (用适当的词填空) 8. ___________ I do remember is the overwhelming feeling of happiness that washed over me.（用适当的词填空） 9. Exactly ___________ the potato was introduced into Europe is uncertain, but many people believe it was probably around 1565. (用适当的词填空) 10. It remains a question _____ we can get so much money in such a short time.（所给词的适当形式填空） 【答案】1. What 2. what 3