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高考語(yǔ)法復(fù)習(xí)三：名詞性從句
名詞性從句相當(dāng)于名詞，可分別作主句的主語(yǔ)、表語(yǔ)、賓語(yǔ)和同位語(yǔ)。因此，名詞性從句廳分為主語(yǔ)從句、表語(yǔ)從句、賓語(yǔ)從句和同位從句。以下是小編收集整理的高考語(yǔ)法復(fù)習(xí)三：名詞性從句，歡迎閱讀，希望大家能夠喜歡。
高考語(yǔ)法復(fù)習(xí)三：名詞性從句
（一）引導(dǎo)名詞性從句的連接詞
1、連接代詞：who, whose, whom, what, which。有詞義，在從句中擔(dān)任成分，如主語(yǔ)、表語(yǔ)、賓語(yǔ)、或定語(yǔ)等。
2、連接副詞：when, where, why, how。有詞義，在從句中擔(dān)任成分，作狀語(yǔ)。
3、連接詞：that, whether, if, as if。that 無(wú)詞義，在從句中不擔(dān)任成分，有時(shí)可省略；if (whether), as if雖有詞義，但在從句中不擔(dān)任成分。
注意：連接代詞與連接副詞在句中不再是疑問(wèn)句，因而從句中謂語(yǔ)不用疑問(wèn)式。連接代詞與連接副詞在從句充當(dāng)句子成分，連接詞whether 和if（是否），as if（好象）在從句中不充當(dāng)句子成分，只起連接作用。根據(jù)句義，如果連接代詞與連接副詞，whether、if 和as if都用不上時(shí)，才用that作連接詞（that本身無(wú)任何含義）。
（二）主語(yǔ)從句
1、主語(yǔ)從句在復(fù)合句作主語(yǔ)。
e.g. Who will go is not important.
2、用it作形式主語(yǔ)，主語(yǔ)從句放在句末。
e.g. It doesnt matter so much whether you will come or not.
3、that引導(dǎo)主語(yǔ)從句時(shí)，不能省略。
e.g. That he suddenly fell ill last week made us surprised.
�。ㄈ┍碚Z(yǔ)從句
1、表語(yǔ)從句在復(fù)合句中作表語(yǔ)，位于系動(dòng)詞之后。
e.g. The question was who could go there.
2、引導(dǎo)表語(yǔ)從句的連接詞that有時(shí)可省去。
e.g. My idea is (that) we can get more comrades to help in the work.
�。ㄋ模┵e語(yǔ)從句
1、賓語(yǔ)從句在復(fù)合句中作賓語(yǔ)。引導(dǎo)賓語(yǔ)從句的連詞that一般可省略。
e.g. I hope (that) everything is all right.
2、介詞之后的賓語(yǔ)從句，不可用which或if連接，要分別用what或 whether。
e.g. Im interested in whether youve finished the work..
Im interested in what youve said.
3、whether與if都可以引導(dǎo)賓語(yǔ)從句，�？苫Q。但下面情況不能互換。
�、儋e語(yǔ)從句是否定句時(shí)，只用if，不用whether。
e.g. I wonder if it doesnt rain.
�、谟胕f 會(huì)引起誤解，就要用whether。
e.g. Please let me know whether you want to go.（此句如果把whether改成if，容易當(dāng)成條件句理解）
�、圪e語(yǔ)從句中的whether 與or not直接連用，就不能換成if；不直接連用，可換。
e.g. I dont know whether or not the report is true.
I dont know whether/ if the report is true or not.
�、芙樵~后的賓語(yǔ)從句要用whether引導(dǎo)。whether 可與不定式連用。whether也可引導(dǎo)主語(yǔ)從句、表語(yǔ)從句、同位語(yǔ)從句，還可引導(dǎo)讓步狀語(yǔ)從句，以上均不能換成if。但引導(dǎo)條件從句時(shí)，只能用if，而不能用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）同位語(yǔ)從句
同位語(yǔ)從句在句中作某一名詞的同位語(yǔ)，一般位于該名詞（如：news, fact, idea, suggestion, promise等）之后，說(shuō)明該名詞的具體內(nèi)容。
e.g. I have no idea when he will be back.
The fact that he had not said anything surprised everybody.
練習(xí)：名詞性從句
一、判斷下列各句哪句含有名詞性從句，并指出是什么從句：
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 they 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 she refused my invitation.
二、用適當(dāng)?shù)倪B詞填空：
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 said 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.
三、選擇填空：
1. Do you see _____ I mean?
A. that B./ C. how D. what
2. Tell me_____ is on your mind.
A. that B. what C. which D. why
3. We must stick to _____ we have agreed on.
A. what B. that C. / D. how
4. Let me see _____.
A. that can I repair the radio B. whether -I can repair the radio
C. I can repair the radio D. whether can I repair the radio
5. Keep in mind _____.
A. that the teacher said B. what did the teacher say
C. that did the teacher say D. what the teacher said
6. Could you advise me _____?
A. which book should I read first B. what book should I read first
C. that book 1 should read first D. which book I should read first
7. He was criticized for _____.
A. he had done it B. what he had done C. what had he done D. that he had done it
8. Would you kindly tell me _____?
A. how can I get to the Beijing Railway Station
B. how I can get to the Beijing Railway Station
C. where can I get to the Beijing Railway Station
D. whether can I get to the Beijing Railway Station
9. Mrs. Smith was very much impressed by _____.
A. what had she seen in China B. that she had seen in China
C. what she had seen in China D. which had she seen in China
10. We took it for granted ___
A. that they were not coming B. that were they not coming
C. they were coming not D. were they not coining
11. I really dont know _____
A. I should do next B. what should I do next
C. what I should do next D. how I should do next
12. Im afraid _____.
A. the little girl will have to be operated on
B. that will the little girl have to operate on
C. the little girl will have to operate on
D. that will the little girl have to be operated on
13. She walked up to _____ .
A. where did I stand B. where I stood
C. I stood there D. where I stood there
14. Can you tell me _____?
A. who is that gentleman B. that gentleman is who
C. who that gentleman is D. whom .is that gentleman
15. Well give you _____.
A. that do you need B. what do you need
C. whatever you need D. whether do you need
16. They want us to know _____ to help us.
A. what can they B. what they can C. how they can D. how can they
17. We must put _____ into practice.
A. what we have learned B. that we have learned
高考語(yǔ)法復(fù)習(xí)三：名詞性從句
一、名詞性從句的概念
名詞性從句是在句子中起名詞作用的從句，它包括主語(yǔ)從句、賓語(yǔ)從句、表語(yǔ)從句和同位語(yǔ)從句。名詞性從句在句中可以充當(dāng)主語(yǔ)、賓語(yǔ)、表語(yǔ)和同位語(yǔ)等成分。
二、名詞性從句的連接詞
連接代詞：what, which, who, whom, whose 等，在從句中充當(dāng)主語(yǔ)、賓語(yǔ)、表語(yǔ)或定語(yǔ)。
What he said is true.（what 在從句中作賓語(yǔ)）
Which book you like depends on your interest.（which 在從句中作定語(yǔ)）
連接副詞：when, where, why, how 等，在從句中作狀語(yǔ)。
I dont know when he will come.（when 在從句中作時(shí)間狀語(yǔ)）
This is where I was born.（where 在從句中作地點(diǎn)狀語(yǔ)）
從屬連詞：that, whether, if 等，在從句中不充當(dāng)任何成分。
That he is honest is known to all.（that 在從句中不充當(dāng)成分，只起連接作用）
I dont know whether/if he will come.（whether/if 在從句中不充當(dāng)成分，表示 “是否”）
三、主語(yǔ)從句
主語(yǔ)從句在句中作主語(yǔ)，通常放在句首。
What he needs is a book.
Whether he will come is still a question.
為了避免句子頭重腳輕，常用 it 作形式主語(yǔ)，而把主語(yǔ)從句放在句末。
It is known to all that he is honest.
It is still a question whether he will come.
四、賓語(yǔ)從句
賓語(yǔ)從句在句中作賓語(yǔ)，通常放在及物動(dòng)詞、介詞或形容詞后。
I know what he said.（及物動(dòng)詞后）
He is interested in what he is doing.（介詞后）
I am sure that he will come.（形容詞后）
賓語(yǔ)從句的時(shí)態(tài)要與主句的時(shí)態(tài)保持一致。
He said that he had finished his homework.（主句是過(guò)去時(shí)，從句用過(guò)去完成時(shí)）
五、表語(yǔ)從句
表語(yǔ)從句在句中作表語(yǔ)，通常放在系動(dòng)詞后。
The problem is who can help us.
His suggestion is that we should start at once.
表語(yǔ)從句的連接詞與主語(yǔ)從句和賓語(yǔ)從句的連接詞基本相同。
六、同位語(yǔ)從句
同位語(yǔ)從句在句中作同位語(yǔ)，對(duì)名詞進(jìn)行解釋或說(shuō)明。
The news that he has won the first prize is true.（解釋 news 的內(nèi)容）
同位語(yǔ)從句通常由 that 引導(dǎo)，that 在從句中不充當(dāng)任何成分，只起連接作用。
七、高考中名詞性從句的考查重點(diǎn)
連接詞的選擇：根據(jù)從句的成分和意義來(lái)選擇合適的連接詞。
語(yǔ)序：名詞性從句要用陳述句語(yǔ)序。
時(shí)態(tài)：注意主從句時(shí)態(tài)的一致性。
八、復(fù)習(xí)建議
理解名詞性從句的概念和用法，掌握不同類(lèi)型從句的特點(diǎn)。
多做練習(xí)題，熟悉高考中名詞性從句的考查方式。
注意積累常見(jiàn)的連接詞和句型，提高解題能力。
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