高中英语语法表语从句解及练习.doc

表语从句1、概述用作表语的从句叫作表语从句，它位于主句中的连系动词之后。引导表语从句的词有从属连词that、whether、as though(if)；关系代词who, what, which, whom, whose, whatever, whoever, whomever, whichever等；关系副词when, where, why, how, however, whenever, wherever等。可以接表语从句的连系动词由be, look, remain, seem等。The trouble is that we are short of money. That is why stone walls are used instead of fences around New England fields.At that time, it seemed as if I couldnt think of the right word anyhow.2、由从属连词that，whether引导的表语从句。that在引导表语从句时无词义，在口语中，间或可以省略。而whether有词义，意为、“是否”。这时主句的主语常常是些抽象名词，如question，trouble，problem，result，chance，suggestion，idea，reason等。表语从句对主句主语进行说明、解释，使主语的内容具体化。The trouble is (that) she has lost his money. The question is whether we need more ice cream.The problem was that it was too valuable for everyday use.What she couldnt understand was that fewer and fewer students showed interest in her lessons.3、由关系代词引导的表语从句。关系代词who, what, which, whom, whose, whatever, whoever, whomever, whichever等引导表语从句，在句中作主语、宾语、表语，关系代词不能省略。The question is which of us should go. The problem was who could do the work.Thats what he is worrying about.Thats what we should do.4、由关系副词引导的表语从句。Go and get your coat. Its where you left it. I had neither a raincoat nor an umbrella. Thats why I got wet through.That is how mice ruin many stores of grain every year.That is what he is worried about.5、由连词because，as if/as though等引导的表语从句。It looked as if it was going to snow. Thats because we never thought of it. It seems as if he didnt know the answer. 6.练习1. The question is _ we will have our sports meet next week.A. that B. if C. when D. whether2The reason why he failed is _he was too careless.A. because B. that C. for D. because of3. Go and get your coat. It s _you left itA. where B. there C. there where D. where there4The problem is _to take the place of TedA. who can we get B. what we can getC. who we can get D. that we can get5. What I want to know is _ he likes the gift given by us.A. that B. if C. whether D.不填6. The reason is_I missed the bus.A. that B. when C. why D. what7. That is _ _ we were late last time. A. that B. when C. why D. what8. She looked _ she were ten years younger.A. that B. like C. as D. as though9.I felt sick!-I think it is _ you are doing too much.A. whyB. whenC. whatD. because10. The reason why he hasnt come is _.A. because his mother is illB. because of his mothers being illC. that his mother is illD. for his mother is ill11. He was born here.- That is _ he likes the place so much.A. that B. what C. why D. how12.That is _ Lu Xun once lived.A. what B. where C. that D. why12_your father wants to know is_ getting on with your studies.A. What; how are you B. That；how you areC. How；that you are D. What；how you are13. The trouble is_we are short of tools.A. whatB. thatC. how D. why that14. America was _was first called “India” by Columbus.A. what B. where C. the place D. there where15. China is becoming stronger and stronger. It is no longer_ .A. what it used to be B. what it was used to beingC. what it used to being D. what it was used to be16. _he really means is _he disagrees with us.A. What that B. That whatC. What what D. That what17. The energy is _ makes the cells able to do their work.A. that B. which C. what D. such高考练习1 I drove to Zhuhai for the air show last week .Is that_ you had a few days off？（NMET1999）A. why B .what C. when D. where2 .I had neither a raincoat nor an umbrella _I got wet through. （1998 上海）A. Its the reason B. Thats why C. Theres why D. Its how3. See the flags on top of the building? That was _ we did this morning. （06 全国）A. when B. which C. where D. what4. - Are you still thinking about yesterdays game?(2003北京春) -Oh, thats _.A. what makes me feel excited B. whateve