名词性从句--主语宾语.ppt

* 名词性从句包括主语从句、表语从句、宾语从句、同位语从句，其关联词有: 1)连接词that, if, whether; 2)疑问代词who, what, which 3)疑问副词when, where, how, why等 名词性从句 主语从句 (Subject Clauses) 定义:如果一个句子在复合句中充当一个主语,那么这个句子就是主语从句. Who did that is known to all. 谁做的那件事，众所周知。 It’s reported that no one was killed in the earthquake. 据报道地震中没有人死亡。 主语从句的类型 1. 常规主语从句，即句子在复合句中充当一个主语 （1）That he finished writing the composition in such a short time surprised us all. （2）Whether we will go for an outing tomorrow remains unknown. （3）Who will be our monitor hasnt been decided yet. （4） Whom we must study for is a question of great importance. （5）What caused the accident remains unknown. （6）Whatever you did is right. 主语从句的类型 （7）Whose watch was lost is unknown. （8）What we need is time. （9）What we need are good doctors. （10）That he likes such kind of books is very interesting. （11）What he is looking for is none of your business. 小结: （1)引导主语从句连词有that, whether, who, what, whatever等 （2)连词位于句首不能省略 （3)主语从句大多数情况下视为第三人称单数, 但也有例外,如例9 主语从句的类型 2. 为了防止句子头重脚轻，通常把形式主语it放在主语位置，真正主语搁置于句末 （1）It is certain that he will win the match. （2）It is true that he has made a very important discovery in chemistry. （3）It is very likely that they will hold a meeting. （4）It is strange that he should do that. （5）It is important that we all should attend the meeting. （6）It is strange that the man should have stuck to his silly ideas. （7）It is a pity that we wont be able to go to the south to spend our summer vacation. 主语从句的类型 （8）It is still a mystery what caused the accident. （9）It is said that he has gone to shanghai.(=He is said to have gone to shanghai) （10）It is known to all that the gun powder was first invented by the Chinese. （11）It is suggested that the work should be done with great care. （12）It seems that he has seen the film.(=He seems to have seen the film) （13）It happened that the two cheats were there. (=The two cheats happened to be there) 主语从句的类型 小结: 1)以that 引出的主语从句,常以形式主语it引导. 句式是: It is +形容词/名词/某些动词ed + tha