主语从句教案(共3页)

1、精选优质文档-倾情为你奉上英语教案-主语从句主语从句：做主语用的名词性从句，因其在复合句中做主语，又称主语从句，引导主语从句的有连词that ，whether， 连接代词who ，what ，which， 连接副词when，where， how， why等。一、主语从句的连词分三类（1）从属连词引导的主语从句 （that whether if）例如：That you will win the medal seems unlikely. That she survived the accident is a miracle. It is a miracle that she survived.t

2、hat引导的主语从句:引导词that_ 含义，在句中_成分_省。Whether we will hold a party in the open air tomorrow depends on the weather. Whether she is coming or not doesnt matter too much.It doesnt matter too much whether she is coming or not.whether 引导的主语从句: whether有含义，意为_在句中_成分_省。注意：引导主语从句，不能用if不能在开头，只能用whether。对于以连词thatwh

3、ether引导的主语从句，可以用形式主语_替代主语从句,避免头重脚轻。（2） 用连接代词引导的主语从句 在由连接代词who, whose, whom, which, what, whoever, whomever, whichever, whatever引导的名词性从句中，其连接代词在句中起名词性作用，_(做/不做)成分.例如：What you need is more practice. Whatever we do is none of my business.whatever = anything that; whoever = anyone who。要注意和whatever, whoe

4、ver引导的让步状语从句的区别。如：Whoever breaks the law should be punished. （主语从句）（ Anyone who breaks the law should be punished. ） Whoever breaks the law, he should be punished. （让步状语从句）（ No matter who breaks the law, he should be punished. ）（3）用连接副词when, where, why, how引导的名词性从句(其连接副词_含义,在句中作_ 语。)例如:Where we shou

5、ld leave it is a problem. When they will come hasnt been made pubic.三、it 作形式主语的主语从句有时为了考虑句子平衡，通常在主语从句处使用形式主语it，而将真正的主语从句移至句末。这分四种情况：<a> It is +名词+从句It is a fact that 事实是；It is good news that 是好消息；It is a question that 是个问题；类似的名词还有：a pity；a wonder；a good thing；a surprise等。It is a mystery to me

6、how it all happened.It is no surprise that Bob should have won the game. <b> It is +形容词+从句It is necessary that 有必要；It is clear that 很清楚；It is likely that 很可能；It is important that 重要的是类似的形容词还有：strange; natural; obvious; true; good; wonderful; possible; unlikely; quite; unusual; certain; evident

7、; worth-while; surprising; interesting; astonishing, etc.It seems obvious that we can not go on like this.It is necessary that you （should）master the computer. 注：有些主语从句中，谓语动词很多为“（should）动词原形”，即要用虚拟语气。<c> It is +过去分词+从句It is said that 据说；It is reported that 据报道；It has been proved that 已证明；It mu

8、st be proved that 必须指出类似的过去分词还有：known; estimated; expected; believed; thought; hoped; noted; discussed; required; decided; suggested; demanded; made clear; found out,etc.例如：It is reported that the weather will become warmer and warmer.It has not been made clear when the new road is to be opened to t

9、raffic.<d> It seems不及物动词（happened / appears / doesntt matter / makes no difference / occurred ）that 主语从句不可提前 It makes no difference whether he will attend the meeting or not. It does not matter if I missed my train.It happened that I saw him yesterday. (2) 对关系代词型what引导的主语从句，通常直接将主语从句放在句首。如：Wha

10、t we need is money. 我们需要的是钱。What I want to know is this. 我想知道的就是这一点。有时也可将助用形式主语。如：It is clear enough what he meant. 他是什么意思很清楚。(3) 如果句子是疑问句，则必须用带形式主语it的结构：Is it true that he is the girls father? 他是那女孩的父亲，是真的吗？How is it that you are late again? 你怎么又迟到了？四、连词that的省略问题That you didnt go to the talk was a

11、pity. 很遗憾你没去听报告。(that不可省)It was a pity (that) you didnt go to the talk. 很遗憾你没去听报告。(that可省)引导主语从句的连词that 有时可省，有时不能省，其原则是：若that引导的主语从句直接位于句首，则that_省略；若that引导的主语从句位于句末，而在句首使用了形式主语it，则that_省略主语从句练习1._ makes mistakes must correct them.A. What B. That C. Whoever D. Whatever2. It worried her a bit _ her ha

12、ir was turning grey.A. while B. that C. if D. for 3.When and why he came here _ yet.A. is not known B. are not known C. has not known D. have not known4. _ is no reason for dismissing her.A. Because she was a few minutes late B. Owing to a few minutes lateC. The fact that she was a few minutes late

13、D. Being a few minutes late5. _ Tom liked to eat was different from _.A. Thatthat you had expected B. What that you had expectedC. Thatwhat you had expected D. Whatwhat you had expected6._ we go swimming every day _ us a lot of good.A. If.do B. That.do C. If.does D. That.does7.It _ Bob drives badly.

14、A. thinks that B. is thought what C. thought that D. is thought that8.It's uncertain _ the experiment is worth doing.A. if B. that C. whether D. how9._ the boy didn't take medicine made his mother angry.A. That B. What C. How D. Which10._ we can't get seems better than _ we have.A. What,

15、 what B. What, that C. That, that D. That, what11._ you don't like him is none of my business. A. What B. Who C. That D. Whether12._ we'll go camping tomorrow depends on the weather.A. If B. Whether C. That D. Where13._is going to do the job will be decided by the Party committee.A. That B.

16、Why C. How D. Who14._we'll finish translating the book depends on the time.A. When B. Why C. What D. That15._he won't go there is clear to all of us.A. How B. What C. Why D. This16._the house will be built will be discussed at tomorrow's meeting.A. If B. Where C. That D. What17. ._you come or not is up to you.A. What B. If C. Why D. Whether18._makes mistakes must correct them.A. Who B.