高三英语一轮复习---名词性从句课件 (共50张PPT)

名词性从句 Unit 1 The world of our sense Grammar Noun clause 名词性从句 名词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。 引导名词性从句的连接词可分为三类：　　 连接词：that, whether, if 连接代词：what, whatever, who, whoever, whom, whose, which. 连接副词：when, where, how, why 一．主语从句 主语从句是在复合句中充当主语的从句，通常放在主句谓语动词之前或由形式主语it代替，而本身放在句子末尾。 1. It 作形式主语 It 作形式主语代替主语从句，主要是为了平衡句子结构，主语从句的连接词没有变化。例如： It is a pity that you didn’t go to see the film. It doesn’t interest me whether you succeed or not. Ⅰ Subject clause 引导主语从句的连词主要有: 一.由 that 引导的主从: 1. That we shall be late is certain. 2. _____________________ is known to all. (地球是圆的) 3. ________________________ is a pity. (你错过了这次机会) ★ that 不作成分，无意义, 但不能省略. 后接一个完整的陈述句. That the earth is round That you missed the chance that whether 疑问词 注：that 引导的主语从句作主语，谓语用单数。 That 引导的主从，常用形式主语it 代替，that 从句后移。 That we need time is obvious. It is obvious that we need time. 2. What 引导的主