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1、高中英语名词性从句讲义(超详细版)精品文档名词性从句一．定义： 在句子中起名词作用的句子叫名词性从句 (Noun Clauses）。 名词性从句的功能相当于名词词组, 它在复合句中能担任主语、宾语、表语、同位语、介词宾语等，因此根据它在句中不同的语法功能，名词性从句又可分别称为主语从句、宾语从句、表语从句和同位语从句。 1. His words are true. What he said is true. 2. The dog sensed something good. The dog sensed that there was
2、 something good nearby. 3. These are his words. These are what he said. 4. My Maths teacher, Mr He, is a kind person. The news that the plane had crashed made us sad. 二．引导名词性从句的连接词 连词：在从句中不充当成分，只起连接作用 that, 无实义 whether, if 是否 as if as though 似乎，好像 连接代词：有词义，在句中担任主语，表语
3、，定语或宾语。 what, 什么 who, 谁 whom, 谁，作宾语 whose, 谁的 which, 哪一个 whatever, whoever……也可以引导。 连接副词：有词义，在句中担任状语。 when ,什么时候 where, 什么地方 why, 为什么 how ,怎么样 how many, how much, how often 三．主语从句 1. 作句子主语的从句叫主语从句。 What he wants to tell us is not clear. 他要跟我们说什么，还不清楚。 It is known to us
4、 how he became a writer. 我们都知道他是如何成为一名作家的。 That he is late for school makes the teacher very angry. 他上学迟到让老师很生气。 2. 有时为避免句子头重脚轻，常用形式主语it代替主语从句作形式主语放于句首，而把主语从句置于句末。主语从句后的谓语动词一般用单数形式。常用句型如下： （1） It + be + 名词 + that从句 e.g. It is a pity that we won't be able to go to the so
5、uth to spend our summer vacation. （2）It + be + 形容词 + that从句 Eg. It is certain that he will win the match. 收集于网络，如有侵权请联系管理员删除精品文档It is very likely that they will hold a meeting. It is strange that the man should have stuck to his silly ideas. （3）It + be + 动词的过去分词 + that从
6、句 Eg. It is said that he has gone to shanghai.(=He is said to have gone to shanghai) It is suggested that the work （should） be done with great care. （4）It + 不及物动词 + that 从句 Eg. It seems that he has seen the film.(=He seems to have seen the film) It happened that the t
7、wo cheats were there. (=The two cheats happened to be there) 注意：在主语从句中用来表示惊奇、不相信、惋惜、理应如此等语气时，谓语动词要用虚拟语气“(should) +do”，常用的句型有：It is necessary (important, natural, strange, etc.) that … It is suggested (requested, proposed, desired, etc.) that… 3. 主语从句的时态：不受主句的时态影响和限制。
8、（1）Whether we will go for an outing tomorrow remains unknown. （2）Who will be our monitor hasn't been decided y
