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表语从句和同位语从句知识点小结精析概要 表语从句 在句中作表语的从句叫表语从句。引导表语从句的关联词与引导主语从句的关联词大致一样，表语从句位于连系动词后，有时用as if引导。其基本结构为：主语 + 系动词 + that从句。例如： The fact is that we have lost the game. 事实是我们已经输了这场比赛。 That is why he didn’t come to the meeting. 那就是他为什么不到会的原因。 It looks as if it is going to rain. 看上去天要下雨了。 需要注意的，当主语是reason时，表语从句要用that引导而不是because。例如： The reason why he was late was that he missed the train by one minute this morning 新概念3课文 新概念英语听力 新概念英语2课文 同位语从句 同位语从句说明其前面的名词的具体内容。同位语从句通常由that引导，可用于同位语从句的名词有advice、demand、doubt、fact、hope、idea、information、message、news、order、problem、promise、question、request、suggestion、truth、wish、word等。例如： The news that we won the game is exciting. 我们赢得这场比赛的消息令人激动。 I have no idea when he will come back home. 我不知道他什么时候回来。 The thought came to him that Mary had probably fallen ill. 他想到可能玛丽生病了。 同位语从句和定语从句的区别： that作为关系代词，可以引导定语从句，充当句子成分，在从句中作宾语时可以省略； that引导同位语从句时，起连词的作用，没有实际意义，不充当句子成分，一般不能省略。 试比较下面两个例句: I had no idea that you were here．（that引导同位语从句，不能省略） Have you got the idea（that）this book gives you of life in ancient Greece？（that引导定语从句，作宾语，可以省略） 1. ______ surprised me most was ______ such a little boy of seven could play the violin so well. A. That…what B. What…that C. That…which D. What…which 2. We gave him ________ help we could. A. which B. what C. that D. this 3. She is pleased with what you have given him and ________ you have told him. A. that B. which C. all what D. all that 4. Excuse me would you please tell me ________ A. when the sports meet is taken place B. when is the sports meet going to be held C. when is the sports meet to begin D. when the sports meet is to take place 5. Do you happen to know ________ A. what size shoes he wears B. how big shoes he wears C. what is the size of his shoes D. what number shoes are his 6. This book will show you ________ can be used in other contexts. A. how you have observed B. how what you have observed C. that you have observed D. how that you have observed 7. Where do you think ________ A. has he gone B. has he been C. he's gone D. was he 8. Do you know ________ A. how many populations there are in the world B. how much population there is in the world C. how many the population of the world is D. what the population of the world is 9. Would you go and see ________ outside A. what to take place B. what Tom has happened C. what is happening D. what the matter had been 10. The subject of "What is interesting is that I do not even know him." is_______. A. what B. interesting C. What is interesting D. I 
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