名词性从句英语perfect.ppt

　名词性从句 名词性从句在功能上相当于名词 什么叫名词性从句？ 在句子中起名词作用的句子叫名词从句 (Noun Clauses） 名词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、同位语等 因此根据它在句中不同的语法功能，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 What are noun clauses? His story is interesting. What he said is interesting. I heard his story. I heard what he said. I listen to his story. I listen to what he said. This is his story. This is what he said. The idea of going there is good. The idea that we go there is good. Subject clause（主语从句） Practice time：指出下列各名词性从句的种类 At lunchtime, the radio weatherman reported that the mist would become a thick fog in the afternoon. 2. She wondered if the buses would still be running. 3. The truth is that the fog is too thick for the bus to run that far. 4. When we will start is not clear. 5. I had no idea that you were her friend. 宾语从句中的连接词that在以下三种情况下不能省略： （1）当that 从句与另一名词性从句并列作宾语时，第二个that不能省； （2）当that作介词宾语时，that不可省掉。 （3）用it做形式宾语的宾语从句 Everyone knew what happened and that she was worried. The reason lies in that she works harder than the others do. I think it necessary that you should read English aloud. 高考重点： 1. whether可以引导所有的名词性从句，而if只能引导宾语从句和不在句首的主语从句。 2. whether可以做介词的宾语，if 不能。 3. whether引导的句子可以置于句首，if 只能放在主句谓语动词之后。 4.引导宾语从句时whether、if可以互换。 5. whether+to do / or not ; if不能。 whether he comes or not makes no difference.(句首主语从句，不用if) I don’t know whether / if he will attend the meeting. I doubt if/whether he is right. The problem is whether you love her. The problem is if you love her. There is some doubt if he can come here on time. 2. 连接代词 （1）引导名词性从句的关系代词有 who ---谁（主格） whom --谁（宾格） what ----什么…..的东西；所….的 which --哪一个/些 whose ---谁的（所有格） whatever—无论什么 whichever—无论哪个 whoever-无论谁 使用要点理解：这些词在句子中既起连接作用，同时又担当从句中的一个成分。 Who will be the president has not been decided yet. (who引导主语从句的同时担任从句的主语) He asked whom I borrowed the money form. (引导宾语从句的同时担任从句的宾语) Which team has won the game is not known yet.(引导主语从句的同时做从句的定语) That is what he