名词性从句PPT-英语-1.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 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. 引导词 句型转换 1.They are good doctors. He told us. → 2. He hadn’t said anything at the meeting. The fact surprised us.→ 3.Does your sister get up early? Do you know? → 4.Do animals have the same senses as humans? I often wonder. → 5.When did he buy this new bike? Could you tell me? → 6.My question is this: where will the lecture be given? → 总结：名词性从句必须用陈述句语序。另外，一般情况下，名词性从句均看作单数概念。由what引导的一般看后面的表语。宾语从句的时态一般与主句保持一致。 Practice time.单句改错 1.That the earth turns around the sun are known to all. 2.When the meeting will be held haven’t been known yet. 3.I didn’t know that you will come. 4.He said that he is writing a story. 5.Could you tell me when will he arrive? 6.You can begin to see why does English have such strange rules. Object Clauses 宾语从句 2.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. whether与if的辨用 表“是否”时，在下列情况下用whether。 a. 主语从句b. 表语从句c. 同位语从句d. 介词后的宾语从句e.后接动词不定式 (whether to do sth.) f .whethe