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1、 语法复习三：名词性从句名词性从句相当于名词，可分别作主句的主语、表语、宾语和同位 语。因此，名词性从句厅分为主语从句、表语从句、宾语从句和同位从 句。（一）引导名词性从句的连接词1、连接代词：who, whose, whom, what, which。有词义，在从句中 担任成分，如主语、表语、宾语、或定语等。2、连接副词：when, where, why, how。有词义，在从句中担任成 分，作状语。3、连接词：that, whether, if, as if。that 无词义，在从句中不担任成分，有时可省略；if (whether), as if虽有词 义，但在从句中不担任成分。注意：连接
2、代词与连接副词在句中不再是疑问句，因而从句中谓语不用疑 问式。连接代词与连接副词在从句充当句子成分，连接词whether 和if （是否），as if（好象）在从句中不充当句子成分，只起连接作用。 根据句义，如果连接代词与连接副词，whether、if 和as if都用不上 时，才用that作连接词（that本身无任何含义）。 （二）主语从句1、主语从句在复合句作主语。e.g. Who will go is not important.2、用it作形式主语，主语从句放在句末。e.g. It doesnt matter so much whether you will come or not.3
3、、that引导主语从句时，不能省略。e.g. That he suddenly fell ill last week made us surprised.三）表语从句 1、表语从句在复合句中作表语，位于系动词之后。e.g. The question was who could go there. 2、引导表语从句的连接词that有时可省去。e.g. My idea is (that) we can get more comrades to help in the work.（四）宾语从句 1、宾语从句在复合句中作宾语。引导宾语从句的连词that一般可省略 。e.g. I hope (that)
4、 everything is all right. 2、介词之后的宾语从句，不可用which或if连接，要分别用what或 whether。e.g. Im interested in whether youve finished the work. Im interested in what youve said.3、whether与if都可以引导宾语从句，常可互换。但下面情况不能互换 。宾语从句是否定句时，只用if，不用whether。e.g. I wonder if it doesnt rain.用if 会引起误解，就要用whether。e.g. Please let me know wh
5、ether you want to go.（此句如果把 whether改成if，容易当成条件句理解）宾语从句中的whether 与or not直接连用，就不能换成if；不直接连 用，可换。e.g. I dont know whether or not the report is true. I dont know whether/if the report is true or not.介词后的宾语从句要用whether引导。whether 可与不定式连用。 whether也可引导主语从句、表语从句、同位语从句，还可引导让步状语从句，以上均不能换成if。但引导条件从句时，只能用if，而不 能用
6、whether。e.g. It depends on whether we have enough time. They dont know whether to go there. Please come to see me if you have time.（五）同位语从句同位语从句在句中作某一名词的同位语，一般位于该名词（如 ：news, fact, idea, suggestion, promise等）之后，说明该名词 的具体内容。e.g. I have no idea when he will be back. The fact that he had not said anythi
7、ng surprised everybody.一、判断下列各句哪句含有名词性从句，并指出是什么从句：1. China is no longer what it used to be.2. The truth that the earth turn around the sun is known to all.3. It was snowing when he arrived at the station.4. How he persuaded the manager to change the plan is interesting to us all.5. The news that the
8、y had won the game soon spread over the whole school.6. The news that you told me yesterday was really disappointing.7. That is where Lu Xun used to live.8. He spoke as if he understood what he was talking about.9. Do you remember the teacher who taught us English at middle school?10. I wonder why s
9、he refused my invitation.表语从句 同位语从句 不是 主语从句 同位语从句 不是 表语从句 宾语从句 不是 宾语从句 答案二、用适当的连词填空：1. I cant decide _ dictionary I should buy.2. Thats _ he refused my invitation.3. I am very interested in _ he has improved his pronunciation in such a short time.4. _ we need is more time.5. The fact _ she had not s
10、aid anything at the meeting surprised everybody.6. _ and _ they will meet has not been decided yet.7. Please tell me _ you are waiting for.8. Is that _ you are looking for?9. Would you please tell me _ the nearest post office is?10. I dont know _ he will agree to the plan or not.which why how What t
11、hat when where who(m) what where whether 答案三、选择填空：1. Do you see _ I mean?A. that B./C. how2. Tell me_ is on your mind.A. that C. which D. why3. We must stick to _ we have agreed on.B. thatC. / D. how4. Let me see _.A. that can I repair the radioC. I can repair the radioD. whether can I repair the ra
12、dio5. Keep in mind _.A. that the teacher saidB. what did the teacher sayC. that did the teacher say答案D. whatB. whatA. whatB. whether -I can repair the radioD. what the teacher said6. Could you advise me _?A. which book should I read firstB. what book should I read firstC. that book 1 should read fir
13、st7. He was criticized for _.A. he had done itB. C. what had he done D. that he had done it8. Would you kindly tell me _?A. how can I get to the Beijing Railway StationC. where can I get to the Beijing Railway StationD. whether can I get to the Beijing Railway Station9. Mrs. Smith was very much impr
14、essed by _.A. what had she seen in ChinaB. that she had seen in ChinaD. which had she seen in ChinaD. which book I should read firstB. what he had doneB. how I can get to the Beijing Railway StationC. what she had seen in China 答案10. We took it for granted _B. that were they not comingC. they were c
15、oming notD. were they not coining11. I really dont know _A. I should do nextB. what should I do nextD. how I should do next12. Im afraid _.B. that will the little girl have to operate onC. the little girl will have to operate onD. that will the little girl have to be operated on13. She walked up to _ .A. where did I stand C. I stood there D. where I stood thereA. that they were not comingC. what I should do nextA. the little girl will have to be operated onB. where I stood答案14. Can you tell me _
