高中英语四大名词性从句的详细概括以及注意点-人教版-PPT.ppt

高中英语四大名词性从句的详细概括以及注意点 人教版2 2你竟然喜欢她很奇怪你竟然喜欢她很奇怪.That you like him is strange.我们所需要的就是钱我们所需要的就是钱.What we need is money.我们能不能去还是一个问题我们能不能去还是一个问题.Whether we can go is still a question.他们什么时候回来还不知道他们什么时候回来还不知道.When they will start is not known yet.3 3你竟然喜欢她很奇怪你竟然喜欢她很奇怪.That you like him is strange.1.有时候为了避免头重脚轻有时候为了避免头重脚轻.主语从句会移主语从句会移到句子的末尾到句子的末尾,而用而用it 作形式主语作形式主语.It is strange that you like him.4 4It is+adj.+that clause.It is said/reported/known/hoped/informed +that 从句从句It is said that he will come to China next year.形式主语形式主语：5 5我们所需要的就是钱我们所需要的就是钱.What we need is money.That you like him is strangewhat 和和that 都能引导名词性从句都能引导名词性从句,但是但是that 只只起连接作用起连接作用,无词义无词义,不充当句子成分不充当句子成分,后后接一个完整的句子接一个完整的句子;而而what 在名词性从句中在名词性从句中既起连接作用既起连接作用,又充当主语又充当主语,宾语或表语宾语或表语,意意思是思是“所所.的东西的东西”6 61._ I cant understand is why he has changed his mind.2._ the earth is round is known to us all.WhatThat7 7 _ we cant get seems better than _ we have.A What;what B What;that C That;that D That;what 8 8大家学习辛苦了，还是要坚持继续保持安静继续保持安静9 9我们能不能去还是一个问题我们能不能去还是一个问题.Whether we can go is still a question.不能用不能用if 来引导主语从句来引导主语从句 而而whether可以可以.1010_ he will come is not known yet.A whenever B If C Whether D That 11111.主语从句和同位语从句的语序 都是陈述句.2.主语从句和同位语从句用that 引导的时候that 是不可以省略的.1212It is+adj.+that clause.It is said/reported/known/hoped/informed +that 从句从句 形式主语形式主语：1313 what 和和that 都能引导名词性从句都能引导名词性从句,但是但是that 只只起连接作用起连接作用,无词义无词义,不充当句子成分不充当句子成分,后后接一个完整的句子接一个完整的句子;而而what 在名词性从句中在名词性从句中既起连接作用既起连接作用,又充当主语又充当主语,宾语或表语宾语或表语,意意思是思是“所所.的东西的东西”1414 不能用不能用if 来引导主语从句来引导主语从句 而而whether可以可以.1515同位语从句1616The news that our team has won the match is true.同位语从句有时可以不紧跟在它所说明的名词后面，而是被别的词隔开。例如：He got the news from Mary that the sports meeting was put off.1717 同同位位语语从从句句一一般般跟跟在在名名词词fact,news,fact,news,promise,truth,belief,thought,idea,promise,truth,belief,thought,idea,answer,information,knowledge,doubtanswer,information,knowledge,doubthope,law,opinion,plan,suggestionhope,law,opinion,plan,suggestion后后面面,用以说明或解释前面的名词用以说明或解释前面的名词.18181)The news that he told me is true.(which)（他告诉我的消息是真的）that引导的从句是定语从句定语从句2)The news that Tom would go abroad is told by him.（汤姆将出国这个消息是他讲的。）that 引导的是同位语从句同位语从句1919一.同位语从句注意点20202.在在have no idea 之后常用之后常用wh-引导同位语从句引导同位语从句.I have no idea where he has gone.I have no idea when he did it.I have no idea what he did.2121宾语从句22221.由连词由连词that 引导引导,that 常可省略。常可省略。I told him(that)I would come back soon.(1)并列第二个以上的宾语从句并列第二个以上的宾语从句,第二第二个个that 是不可以省略的是不可以省略的He said(that)he had finished reading this novel and that he would borrow another one.2323 （）当当that 引引导导的的从从句句作作复复合合宾宾语语的的第第一一个个成成分分时时，需需用用先先行行词词it 作作形形式式宾宾语语，把把从句放到句末，从句放到句末，that 不能省略。不能省略。It is strange that you like him.I think it strange that you like him.I feel it a pity that she cant come.He made it clear that he objected to the plan.2424 否定转移否定转移(think,believe,suppose,expect等动词后）等动词后）我想我并不认识你。我想我并不认识你。I dont think I know you.我相信他不回来我相信他不回来I don t believe he will come.2525 I know that he need money.I know what he need.2626.用whether或者if 来引导我不知道他是否会回来I dont know whether/if he will come.2727 只能用只能用whether的情况：的情况：1）在不定式的前面）在不定式的前面 2）在介词后引导宾语从句时）在介词后引导宾语从句时 3）宾语从句中紧接）宾语从句中紧接or not时。时。4）引导主语、表语、同位语从句时。）引导主语、表语、同位语从句时。I cant decide if to tell him the news.Theyre talking about if they will go.I wonder if or not I should invite him.whetherwhetherwhether If we will go there hasnt be decided.My question is if he will go with us.The question if he will go with us is still unknown.whetherwhetherwhether注意：在条件状语从句中，表示注意：在条件状语从句中，表示“如果如果”时时用用if不用不用whether.由由wh-疑问词引导。疑问词引导。We fully understood what he meant.Go and ask why he was late yesterday.Please tell me which is mine.I asked how he was getting on.表语从句3131表语从句表语从句:结构结构:常见连系动词常见连系动词:连接词连接词:在复合句中充当表语的从句。在复合句中充当表语的从句。主语主语+连系动词连系动词+表语从句表语从句be,look,remain,seem,appearthat,wh-疑问词疑问词,whether,because,as,as if/though3232 The truth is that I didnt go there.1.表语从句里的引导词表语从句里的引导词that 是不可以是不可以省略的省略的 The question is whether he can get there.2.表语从句不能用表语从句不能用if引导引导3333All I want to know is that he need money.All I want to know is what he need.He is not what he used to be.The question is when we start.Thats why we come here.3434 常用的还有常用的还有The reason is that 和和It is because 等结构。等结构。The reason for his absence is that hesuddenly fell ill.It is because he doesnt know her.3535他建议我们应该去北京他建议我们应该去北京He advised/suggested that we should go to Beijing.他们要求我们去北京他们要求我们去北京They require that we should go to Beijing.当动词当动词suggest,advise,require,demand等等 后面接宾语从句的时候宾语从句的谓语动后面接宾语从句的时候宾语从句的谓语动词用词用(should)+do.3737他的建议是我们去北京His suggestion is that we should go to Beijing.His suggestion that we should go to Beijing is good.当主语是当主语是suggestion,advice,requirement,demand等这类名词的时候等这类名词的时候,表语从句或同位表语从句或同位语从句的谓语动词用语从句的谓语动词用(should)+do.3838