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1、,定义:用作主语的从句叫做主语从句,主语从句,构成:关联词+句子,关联词的种类,引导主语从句,What you need is more practice. 你需要的是更多的练习。同类的连接代词还有：what, who, whom, whose, which, whatever, whoever, whichever.Whoever wants it may have it. 谁要都可以给他。,以what等连接代词引导主语从句,It was strange that he had made a mistake. 真奇怪，他竟然错了。Whether he will join us wont ma
2、ke too much difference. 他是否加入我们，没有太大的差别。,以that,whether等从属连词引导主语从句,当主语从句不太长时，引导词“that”可以省略。Its clear (that) he has done his best. 很明显他已经尽力而为了。Its a wonder (that) he didnt fail. 真奇怪，他没有失败。,引导词that什么时候可以省略,When they will come hasnt been made public. 他们什么时候来还没有公布。Where she has gone is not known yet. 她去了
3、哪儿，还不知道。Why he did it will remain a puzzle for ever. 他做那件事的原因将永远是个谜团。,以when等连接副词引导主语从句,(1) 在主语从句中，把It was that去掉之后，就已经完全不像一个句子。在强调句中，把It was that去掉之后，基本上还勉强是个句子。(2)主语从句有以下的引导词：what, who, whom, whose, which, whatever, whoever, whichever. 强调句的引导词只有：that, who。,主语从句与强调句的区别,It was strange that he had mad
4、e a mistake. 如果把It was that 去掉以后，剩下strange he had made a mistake.就不算是句子了。,主语从句,请练习： It is said that hes got married. 听说他已经结婚了。,It was she that had been wrong. 错的是她。 如果把It was that 去掉以后，剩下she had been wrong.还勉强算的上是一个句子。,强调句,请练习： It was this novel that they talked about last night. 他们昨晚谈论的是这部小说。（强调宾语）It was in London that I first saw her. 我是在伦敦第一次见到她的。（强调地点状语）,背诵所有的规则,
