下面小编为大家带来语法--名词性从句，本文共7篇，希望大家能够受用!
篇1：高中英语名词性从句语法
B) 在主语从句中，只有用it 作形式主语时， whether和if 都能引导主语从句， 否则， 也只能用whether。如：
Whether we shall attend the meeting hasn’t been decided yet.
It hasn’t been decided whether (if) we shall attend the meeting.
C) 在介词之后。(介词往往可以省略) 如：
It all depends (on) whether they will support us.
D) 后面直接跟动词不定式时。如：
He doesn’t know whether to stay or not.
E) 后面紧接or not 时。如：
We didn’t know whether or not
she was ready.
② 关联词if， whether均可使用的情况如下：
A) 引导宾语从句。如：
I wonder if (whether) the news is
true or not.
B) 在 “be+形容词” 之后。如：
He was not sure whether (if) it is
right or wrong.
宾语从句要注意的几个问题
? 1. 时态呼应
? 2. 否定转移：
? 3. 形式宾语it的使用
注：在think， believe， suppose， expect 等动词之后，宾语从句中谓语的否定常转移到主句的谓语上。
I don’t think he will see you.
I don’t believe he will go.
注：在接复合宾语的句子中( S+Vt+O+Oc)， 为了保持句子平衡， 用it 作形式宾语，将从句放于句尾， 常接复合宾语的动词有： make， find， see， hear， feel， think...
I think it necessary that we take plenty of hot water every day.
I think it a pity to waste the food
表语从句的用法
在复合句中用作表语的从句是表语从句， 引导表语从句的关联词与引导主语从句的关联词大致一样，表语从句位于连系动词后，有时用as if引导。其基本结构为：主语 + 系动词 + that从句。
That’s what we should do.
That’s why I want to see you.
1. be， seem， look等动词后均可跟表语从句：
My suggestion is that we should go shopping.
It seems that it is going to rain.
2. as if， because 也可引导表语从句。
It looks as if it’s going to rain.
It was because I got up late.
3. 在非正式文体中，引导表语从句的that可以省略。如：
The trouble is (that) he is ill.
注意：在表语从句中，当reason做主语时， 引导词只能用that，不能用because，如：他迟到的原因是因为他没有赶上早班车。
The reason why he was late was that he didn’t catch the early bus.
同位语从句
同位语从句一般跟在名词fact， news， promise， truth， belief， thought， idea， answer， information， knowledge， doubt， hope， law， opinion， plan， suggestion后面， 用以说明或解释前面的名词.
The news that our team has won the match is true.
His delay is due to the fact that the car went wrong halfway.
注： 1. that 引导同位语从句与that 引导定语从句的区别： 引导同位语从句的that 无实际意义， 不作从句的任何成分， 而引导定语从句的that 从句的某个成分
He told me the news that our team won the match.
He told me the news that was very exciting.
We are interested in the news that some foreigners would visit our school.
We are interested in the news that he told us.
2. 在have no idea 之后常用wh-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.
篇2：高中英语名词性从句语法
名词性从句
在句子中起名词作用的句子叫名词性从句。名词性从句的功能相当于名词词组，它在复合句中能担任主语、宾语、表语、同位语、介词宾语等， 因此根据它在句中不同的语法功能，名词从句又可分为主语从句、宾语从句、表语从句和同位语从句。
主语从句的用法
一. 主语从句在复合句中作主语， 它可以位于句首， 但常见的主语从句多放在句末，句首则用形式主语it。
1. That the earth is round is true.
= It is true that the earth is round.
2. Whether he will come hasn’t been decided.
= It hasn’t been decided whether he will come.
注意： 连词that， whether在从句中不担任句子成分，只起连接作用，不能省略 (注：if不可用来引导主语从句)
二. 用it 作形式主语的结构
(1) It is+名词+从句
It is a fact that … 事实是…
It is an honor that …非常荣幸
It is common knowledge that…是常识
(2) It is+形容词+从句 (多用 should)
It is natural that… 很自然…
It is strange that… 奇怪的是…
(3) It is + 不及物动词+从句
It seems that… 似乎…
It happened that… 碰巧…
It appears that… 似乎…
(4) It is + 过去分词+从句
It is reported that… 据报道…
It has been proved that… 已证实…
It is said that… 据说…
it 作形式主语和it引导强调句的比较
it 作形式主语代替主语从句，主要是为了平衡句子结构， 主语从句的连接词有变化。而it引导的强调句则是对句子某一部分进行强调，无论强调的是什么成分，都可用连词that。被强调部分指人是也可用who/whom。例如：
判断：
It is a pity that you didn’t go to see the film.
It doesn’t interest me whether you succeed or not.
It is in the morning that the murder took place.
It is John that broke the window
宾语从句的用法：
句子结构：
主句 + 连接词(引导词) + 宾语从句
连接词：从属连词that， whether， if
连接代词 Who， whom， whose，which， what
连接副词 where， how， why， when
一. 连词 (引导词)
1. 当宾语从句是陈述句时(包括肯定句和否定句)， 连词由that引导， 因为that在从句中不作任何成分， 也没有任何具体意思， 因此在口语或非正式文体中常省略。
Jane said (that) she wasn’t late for the meeting.
2. 当宾语从句是特殊疑问句时， 由特殊疑问词充当连接词， 因为该特殊疑问词(即连接词)在从句中担任一定的句子成分， 具有一定的意义， 所以不可以省略。
Do you know what he said just now?
I don’t remember when we arrived
3. 当宾语从句是一般疑问句时，由连词whether或if引导(口语中常用if)，因为if/whether翻译成是否，具有一定的意义，所以不能省略。
Lily wanted to know if /whether her grandma liked the handbag .
Let’s see if /whether we can find out some information about that city
注意：
① 关联词只能用whether不能用if 表示 “是否”的情况如下：
A) 在表语从句和同位语从句中。如：
The question is whether the film is
worth seeing.
The news whether our team has
won the match is unknown.
篇3：名词性从句
何堪美
复习
定语从句改错题精选：
1. I met John, and who told me the news.
2. I never forget the days when we spent together.
3. They talked of the schools and teachers who they visited.
4. The person with who you went to the park is my uncle.
5. The eggs you bought them are bad.
6. This is the last chance which you have.
7. You, who is my classmate, can help me.
8. This is the most interesting book which I have ever read.
9. The lady of that you spoke is Tom’s mother.
10. He is one of the boys who has finished homework.
11. This is the school on which I study.
12. I need a pen which I will write.
13. English is the only one of my subjects that are not passed.
14. The room that window faces the east is my bedroom.
15. Who is the man who is working there?
16. School is the place, which we are working there.
17. You wear the same watch which I do.
18. He is as diligent a man who ever lived.
19. All what is needed is a supply of oil.
20. Please tell me the way when you did the job.
21. People do not know each other often become friends after they play together.
22. My aunt left for Beijing, where is the capital of China.
23. That is all what I know.
24. Is this factory we visited it last week?
25. Is this the factory we visited it last month?
26. The fisherman whom I think is poor in fact is very rich.
27. The people, most of them are experts, will be invited to the party.
28. The largest collection ever found in England was one of about 200, 000 silver pennies, all of which over 600 years old.
29. I have never heard such stories which he tells.
30. The World Horti-Expo Garden in Kunming is the most beautiful place where people all over the world want to visit.
课前练习
1.I wonder how much _____.
A. cost these shoes B. do these shoes cost
C. these shoes cost D. are these shoes cost
2.Nobody knew _____.
A. where he comes B. where he was from
C. where he is from D. where does he come from
3.Excuse me, would you please tell me _____?
A.when the sports meet will be taken place.
B.when was the sports meet going to be held
C.when is the sports meet to begin
D.when the sports meet is to take place
4.Computers can only give out _____ has been stored in them.
A. that B. which C. what D. anything
5.She wanted to know _____.
A.whether I knew her and where did she work
B.if I knew her and the factory she worked there
C.whether I knew her and the factory she worked
D.if I knew her and the factory where she worked
6.My friend wouldn’t tell me _____ his new car.
A. how much he paid for B. how much did he pay
C. he paid how much for D. did he pay how much
7.He _____you are not going abroad.
A. surprised that B. is surprised that C. surprised at D. is surprised whether
8.Father asked _____.
A. what was wrong with me B. what’s wrong with me
C. what wrong was with me D. what wrong is with me
9.It doesn’t matter _____ I rest or not.
A. if B. whether C. that D. when
10.The trouble is _____ we are short of tools.
A. what B. that C. how D. why that
11.That is _____there appears a rainbow in the sky.
A. what B. when C. why D. however
12._____I can’t understand is _____he wants to change his mind.
A. That, that B. Which, what C. What, what D. What, why
13.It is possible _____ he misunderstood _____ I said.
A. that, that B. what, what C. what, that D. that, what
14.The thought _____ he might fail in the exam worried him.
A. which B. that C. when D./
15.The fact _____he is an orphan is well known.
A. what B. that C. when D. /
16._____ I was free that evening .
A. It happened to B. It happened that C. That happened
E.It was happened that
17.______I will accept the gift is none of your business.
A. If B. Whether C. What D. Which
18._____in the newspaper that the Japanese Minister will arrive next Monday.
A. It says B. It is said C. It has said D. He is said
19.We think it important _____college students should master at least one foreign language.
A. which B. that C. what D. whether
20.Mr Wang is to give us a talk on _____he saw and heard in Britain.
A. what B. all what C. that D. whether
21.The town is no longer ____ it was ten years ago.
A. which B. that C. what D. when
22.Word came _____ I was wanted at the office.
A. which B. why C. that D. whether
23.The problem is _____ will go.
A. that B. that who C. who D. whoever
24._____there is life on another planet is almost impossible.
A. How B. That C. Why D. Whether
25._____was a well-known fact.
A. That their team was weak B. That their team being weak
C. Their team was weak D. If their team was weak
一． 概念：
名词性从句的功能相当于一个名词，在句中做主语、宾语、表语和同位语。
例如：
What he said is right. （主语）
I decide that we will go shopping this afternoon. （宾语）
The reason is that I got up late. （表语）
We’ve heard the news that an American teacher will teach us. （同位语）
二． 种类
名词性从句根据在句中的功能，可分为主语从句、宾语从句、表语从句和同位语从句。
1． 主语从句
主语从句在复合句中做主句的主语。引导主语从句的词有连词that, whether; 连接代词who, what, which, whose, wh-+ever; 连接副词when, where, how, why等。
That he won the first prize is surprising.
That he was chosen made us very happy.
Whether he will go or not is still a question.
Whether he will come or not hasn’t been decided.
Who will go is not important.
What we need is more time.
Which team will win the match is still unknown.
When they will start has not been decided.
Where they have gone is not known yet.
How she became a great artist is known to all.
Why she did it wasn’t quite clear.
2) _____Tom did nothing in class made the master angry.
A. What B. When C. That d. If
3) ____ leaves the room last ought to turn off the lights.
A. Anyone B. The person C. Whoever D. Who
4) It worried her a bit _____ her hair was turning grey.
A. while B. that C. if D. for
5) _____he said at the meeting astonished everybody present.
A. What B. That C. The face D. The matter
2．宾语从句
宾语从句在复合句中做主句的宾语。引导宾语从句的词有连词that (that在口语或非正式文体中常常省略)， whether 或if （口语中常用if）,连接代词who, which, what; 连接副词how, when, where, why等。
He said(that) he felt sick.
I remember that there used to be a tree in front of my house.
Do you mind if he will use your bike?
He asked me whether(if) I could help him.
Do you know which book they’re talking about?
I take back what I said.
Can you tell me how I can get to the museum.
I don’t know why she hasn’t come yet.
Can you tell me where he lives?
Ex:
1) You didn’t say _____ a man or a woman was wanted.
A. if B. which C. whether D. what
2) The photographs will show you _____.
A. what does our village look like B. what our village looks like
C. how does our village look like D. how our village looks like
3) Ask him _____.
A. whose book is that B. whose book that is
C. this is whose book D. when would he buy
4) Can you make sure _____ the gold ring?
A. where Alice had put B. where had Alice put
C. where Alice has put D. where has Alice put
5) I remember _____ this used to be a quiet village.
A. when B. how C. where D. what
3．表语从句
表语从句在复合句中做主句的表语。引导表语从句的词有连词that, whether, as if; 连接代词who, which; 连接副词when, where, how, why等。
The reason is that he ran into a car.
That is why he went to the United States.
It looks as if it will rain.
The question is whether it is worth doing.
They are just what I want.
This is how he did it.
That is where his grandfather once lived.
Ex:
1) This is _____ she absent today.
A. why B. that C. reason D. how
2) The reason why he didn’t come in time was _____ he had missed the first train.
A. that B. for C. because of D. because
3) That is _____ we were late for school.
A. when B. why C. how D. what
4) It looks _____ it is going to snow.
A. as B. like C. as if D. whether
5) My idea is _____ we should turn that land into a rice field.
A. what B. how C. why D. that
4．同位语从句
用作同位语的从句叫做同位语从句。它用在某些名词后面，进一步解释、说明这些名词，这些名词主要有: fact, truth, news, idea, message, suggestion, word, possibility, reply等。引导同位语从句的词有连词that, 连接副词how, when , where 等。
We heard the news that our team had won.
You have no idea how worried I was.
The fact that he had not said anything surprised everybody.
Mother made a promise that she would buy me a new coat.
The possibility that people would have to share rooms wan not mentioned.
The news that she passed the computer skill test was a great surprise.
Ex:
1) The visitors were greatly surprised at the fact _____ the Great Wall had been built by hand.
A. that B. what C. when D. which
2) They expressed the hope _____ they would visit China again.
A. if B. that C. why D. whether
3) The question _____ it is hotter in summer than in winter is known to all.
A. why B. how C. that D. if
4) The news _____ we are having a medical examination next week is not true.
A. Whether B. that C. when D. which
5) Father made me a promise _____ me a computer as my birthday present.
A. he would buy B. he will buy
C. that he would buy D. when would he buy
名词性从句测试 (每小题5分)
1._____ we need more practice is quite clear.
A. When B. What C. That D./
2._____ I accept the gift or refuse it is none of your business.
A. If B. Whether C. Even if D. No matter when
3._____ knows the truth about it will tell you.
A. Who that B. That C. Whoever D. That who
4._____ he is doing seems quite difficult.
A. How B. That C. Which D. What
5.It is suggested that the experiment _____ under low temperature.
A. makes B. is made C. should be made D. will be made
6._____ was quite helpful.
A. What they advised me to B. That they advised me to do
C. What did they advised me to do D. All the they advised me to do
7._____ is unknown to us all.
A. Where did she put it B. Where she put it
C. That where she put D. In which she put it
8.The reason I have to go is _____ if I don’t.
A. that she will be disappointed B. because she will be disappointed
C. on account of her being disappointed D. that she will be disappointing
9.The fact _____ he is an advanced worker is well-known.
A. what B. which C. that D. why
10.I have no idea____.
A.what does the word“infinity” mean
B.what the word“infinity”means
C.what the meaning of the word“infinity”
D.what the word“infinity”mean
11.I’ll certainly tell the Emperor _____ pleased I am with it.
A. how B. what C. who D. whom
12.I wonder _____ he asked such a silly question in public.
A. how B. what C. that D. why
13._____do you think will teach us maths next term?
A. Whom B. Who C. What D. That
14.I will give this dictionary to _____ wants to have it.
A. whomever B. whoever C. whom D. whatever
15.D_____ you think is right _____ difficulties you may have.
A. what, however B. that, whatever C. whatever, whoever D. what, whatever
16.Take _____ much you want and _____ you want to.
A. however, when B. whenever, how C. however, whoever D. however, whenever
17.I don’t think _____.
A.that he came to the concert yesterday true
B.true that he came to the concert yesterday
C.it that he came to the concert yesterday true
D.it ture that he came to the concert yesterday
18.He said,“You’d better take a taxi.”
He told me that I _____ better take a taxi.
A. would have B. should have C. had had D. had
19.Father asked me“What is wrong with you?” Father asked_____.
A. what was wrong with me.
B. What was wrong with you?
C. What’s wrong with me?
D. What wrong was with me.
20.“What time does the football match begin?” John asked me what time _____.
A. does the football match begin B. begins the football match
C. he football match began D. will the football match begin
从句精选习题
1.一Have you found your book yet?
一No. I'm not sure I could have left it.
A.whether B.where C.when D.why
2.The museum will have to close the government agrees to give extra money.
A.until B.if C.when D.unless
3.He often writes to us expressing his hope he'll come to seee when Macao(澳门) returns to China.
A.which B.that C.what D.whether
4、-Was it in 1969 the American astronaut succeeded landing on the moon?
-Quite right.
A．when; on B．that; on C．when; in D．that; in
5、you don’t like him is none of my business.
A．What B．If C．That D．Whether
6．Is it in the factory you visited last week this kind of car is made?
A．不填; that B．where; when C．where; that D．不填; when
7．---I’m green at everything.
--- Don’t worry. you get older, you get more experience.
A．When B．Till C．As D．While
8．Is there a restaurant around＿＿＿I can have something to eat？
A． that B．what C．which D．where
9．You can go out＿＿＿you promise to be back before 10 o'clock．
A．in case B．so long as C．so that D． as far as
10．The day must be breaking，＿＿＿the birds have begun singing．
A．because B．as C．for D．since
10． Delia’s going to join us, was agreed the day before yesterday.
A．it B．that C．what D．as
11. -What is that building? D
-_______ the students have their dance classes.
A. The building that B. There are
C. That’s the building which D. That’s where
12. They decided to drive the cattle away ________ they did more damage.
A. until B. unless C. before D. although
13. In some countries, _________ are called “public schools” are not owned by the state.
A. that B. which C. as D. what
14. –I’d like to invite you to a concert this evening.
–Thank you, but I’ll be free I’m not sure at the moment.
A. while B. if C. when D. whether
15. I kept looking at the man, wondering .
A. whether I have seen him before B. where I had seen him before
C. that I had seen him before D. when I had seen him before
16. We Played in the garden till sunset， it began to rain．
A．when B．after C．while D．then
17．America was was first called“India”by Columbus．
A．that B. where C．What D．the place
18. We Played in the garden till sunset， it began to rain．
A．when B．after C．while D．then
19．America was was first called“India”by Columbus．
A．that B. where C．What D．the place
20. This is an illness that can result in total blindness ______ left untreated.
A. after B. if C. since D. unless
21. The gas must have been used up, the fire went out of itself.
A. because B. as C. for D. since
22.–Don’t look down upon Bob. He has his own advantages.
–Oh, yes. others are weak, he is strong.
A. If B. When C. Though D. Where
23. Fortunately we had a map, without _____ we would have got lost.
A. which B. it C. that D. what
24. I always prefer starting early ________ leaving everything to the last minute.
A. or else B. in case C. rather than D. for fear
25. - Don’t you believe me ?
- ______ , I’ll believe _____ you say .
A. No ; whatever B. Yes ; no matter what
C. No ; no matter what D. Yes ; whatever
26. He’s late , _______ is often the case .
A. as B. what C. it D. this
27. - I’d like to invite you to a concert this evening .
- Thank you , but _____ I’ll have time I’m not sure at the moment .
A. while B. if C. when D. whether
28．Are you sure ______?
A．that he’ll come tomorrow B．whether he’ll come tomorrow
C．if it rains tomorrow D．what he told yesterday
29．That is ______ I was born and grew up.
A．there B．in which C．where D．the place
30．______, the experiment will be successful.
A．If carefully done B．If carefully doing
C．If it done carefully D．If doing carefully
31．When he reads books, his habit is to make a mark ______ the meaning is unclear to him.
A．the B．wherever C．the place D．in which
32．It was in the small house was built with stones by his father he spent his childhood.
A．which ;that B．That ;where C．Which; which D．That; which
33、Edison made a lot of inventions,_____ of great importance．
A．which I think are B．which I think they are
C． which，I think they D．I think which are
34．After seemed a very long time， the badly wounded soldier came back to life．
A．that B．it C．which D．what
35、Is it was at the school __was named after a hero ____ he spend his childhood．
A．which；that B．where；where C．that；where D．which；where
36.--What shall I do with the pen?
--You are free to give it to you think should get it.
A. who B. whoever C. whom D. whomever
37. I was on the point of going out it began to rain heavily.
A. when B. while C. as D. before
38. is known to all, the Chinese language has the largest number of speakers.
A. It B. Which C. What D. As
39. The news our team was defeated all if us.
A. that; disappointing B. that; disappointed
C. which ; disappointing D. which; disappointed
40. The new machine can be put into use it is necessary.
A. as B. for C. whenever D. before
41.The reason he gave for his absence was he had missed the bus.
A. why, that B. that, because C. why, because D. which, that
42.--My foot hurts tern
--Well, I wonder it has been like this.
A. since when B. since then C. how D. when
43.John is the very boy the foolish thing.
A. whom I think did B. whom I think that did
C. who I think that he did D. who I think did
44.Watching children, particularly they don’t know you are doing so, is a pleasure.
A. as, truly B. when, really C. while, really D. since, truly
45.Jang was firm she felt herself to be right.
A. what B. where C. how D. that
46. ________ the Olympic Games will be held in Beijing is not known yet.
A. Whether B. If C. Whenever D. That
47.It worried her a bit ______ her hair was turning grey.
A. while B. that C. if D. for
48.You will be late _________ you leave immediately.
A. unless B. if C. until D. or
49.It was not ______ she took off her dark glasses ________ I realized she was a famous film star.
A. when; that B. until; hat C. until; when D. when; then
50.-I don’t like chicken ________ fish.
----I don’t like chicken ,______ I like fish very much.
A. and; and B. and; but C. or; and D. or; but
51-What was the party like?
---Wonderful. It’s years __________ I enjoyed myself so much.
A. after B. before C. when D. since
52.-Would you like to come to dinner tonight?
---I’d like to,_________ I’m too busy.
A. and B. so C. as D. but
53.Mother was worried because little Alice was ill, especially ________ Father was away in France.
A. as B. that C. during D. if
54.Would you like a cup of coffee _______ shall we get down to business right away?
A. and B. then C. or D. otherwise
55.She thought I was talking about her daughter,_______ in fact,I was talking about my daughter.
A. whom B. where C. which D .while
56.________ we’ll go camping tomorrow depends on the weather.
A. If B. Whether C. That D. Where
57.They were surprised that a child should work out the problem ______they themselves couldn’t.
A. once B. then C. while D. if
58.My name is Robert,_______ most of my friends call me Bob for short.
A. then B. instead C. however D. but
59.Why do you want a new job __________ you’ve got such a good one already?
A. that B. where C. which D. when
60.-I am going to the office.
---________ you’re there, can you get me some stamps?
A. as B. while C. Because D. If
61._________ you’ve got a chance, you might as well make full use of it.
A. Now that B. After C. Although D. As soon as
62._________ everybody knows about it, I don’t want to talk any more.
A. For B. Even C. Since D. However
63.The changes in the city will cost quite a lot,_______ they will save us money in the long run.
A. or B. since C. for D. but’
64.John may phone tonight. I don’t want to go out ________ he phones.
A. as long as B. in order that C. in case D. so that
65.Someone called me up in the middle of the night, but they hung up ______ I could answer the phone.
A. as B. since C. until D. before
66.I don’t think I’ll need any money but I’ll bring some__________.
A. at last B. in case C. once again D. in time
67.Dorothy was always speaking highly of her role in the city ,_______ , of course , made the others unhappy.
A. who B. which C. this D. what
68.The WTO can’t live up to its name ________ it does not include a country that is home to one fifth of mankind.
A. as long as B. while C. if D. even though
69.I know nothing about the young lady __________ she is from Beijing.
A. except B. except for C. except that D. besides
70._______ she couldn’t understand was ________ fewer and fewer students showed interest in her lessons.
A. What ; why B. That ; what C. what ; because D. Why ; that
71.Someone is ringing the doorbell .Go and see _________ .
A. who is he B. who he is C. who is it D. who it is
72.She found her calculator _________ she lost it.
A. where B. when C. in which D. that
73.The men will have to wait all day _________ the doctor works faster.
A. if B. unless C. whether D. that
74.-Did you remember to give Mary the money you owed her?
--- Yes , I gave it to her________ I saw her.
A. while B. the moment C. suddenly D. once.
篇4：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 doesn’t matter so much whether you will come or not.
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) 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. I’m interested in whether you’ve finished the work..
I’m interested in what you’ve 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。
①宾语从句是否定句时，只用if，不用whether。
e.g. I wonder if it doesn’t rain.
②用if 会引起误解，就要用whether。
e.g. Please let me know whether you want to go.（此句如果把whether改成if，容易当成条件句理解）
③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 don’t know whether or not the report is true.
I don’t know whether/ if the report is true or not.
④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whether。
e.g. It depends on whether we have enough time.
They don’t 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 anything surprised everybody.
练习：名词性从句
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 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、用适当的连词填空：
1. I can’t decide ____________ dictionary I should buy.
2. That’s ____________ 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 don’t know ____________ he will agree to the plan or not.
三、选择填空：
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 don't 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. I'm 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. We'll 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
C. that have we learned D. what have we learned
18. Did she say anything about _____?
A. that the work was to be done B. how was the work to be done
C. that was the work to be done D. how the work was to be done
19. He was never satisfied with _____.
A. what she had achieved B. had what she achieved
C. she had achieved D. that she achieved
20. These photographs will show you _____.
A. what does our village look like B. what our village looks like
C. how does our village look like D. how our village looks like
21. Peter insisted _____ he pay the bill.
A. on that B. what C. that D. on which
22. They urged _____ the library open during the vacation.
A. when B. where C. why D. that
23. We wish we could have learned _____ when we were at high school.
A. what you did B. that you had done
C. that what you did D. what did you do
24.1 will describe to you _____ I saw when there.
A. what B. that C. which D./
25. From _____ I should say he is a good worker.
A. what 1 know of him B. that I do know of him
C. what do I know of him D. that do I know of him
26. I will give this dictionary to __ wants to have it.
A. whomever B. anyone C. whoever D. someone
27._____ they will come here hasn' t been decided yet.
A. What B. That C. When D. Where
28. _____ was said here must be kept secret.
A. Who B. The thing C. Whatever D. Where
29. It is still a question _____ we shall have our sports meet.
A. if B. that C. what D. when
30. I'm going anyway. _____ she will go is up to her to decide.
A. If or not B. Whether or not C. If D. That
31. It is strange _____ she have left without saying a word.
A. that B. what C. why D. how
32. It is very clear _____ our policy is a correct one.
A. what B. that C. why D. where
33. _____ Mr Zhang said is quite right.
A. That B. When C. What D. Whether
34. It has been decided _____ he will be sent there.
A. if B. whether C. why D. that
35. It doesn' t matter _____he' s come back or not.
A. if B. whether C. that D. when
36. It's a great pity _____ we won’t be able to finish the task on time.
A. when B. that C. why D. where
37. It happened _____ I wasn't there that day.
A. when B. why C. where D. that
38._____ you have done might do harm to other people.
A. What B. That C. Which D. The things
39. _____ leaves the room last ought to turn oft the lights.
A. Anyone B. The person C. Whoever D.Who
40._____ the 2000 Olympic Games won't be held in Beijing is known to all.
A. Whether B. If C. Whenever D. That
41. _____ fails to see this will make a big mistake.
A. That B. Whoever C. Whether D. Whether or not
42. __ we need more equipment is quite obvious.
A. What B. Whether C. That D. Whatever
43. Has it been announced _____?
A. when are the planes to take off B. that are the planes to take off
C. where are the planes to take off D. when the planes are to take off
44. That is _____ we all support his idea.
A. what B. why C. where D. when
45. That’s _____ we should do.
A. that B. what C. how D. why
46. _____ is troubling me is _____ I don’t understand _____ he said
A. What; that; what B. What; what; what
C. That; that; what D. Why; that; which
47. Things were not _____ they seemed to be.
A. when B. why C. that D. what
48. That’s _____ I want to say.
A. all what B. what C. all which D. what that
49. That’s _____ .
A. where our differences lie B. our differences lie there
C. where do our differences lie D. that where our differences lie
50. That is _____ .
A. where lived he there B. where did he live
C. where he lived D. that where he lived
51. The questions is _____.
A. whether is it worth doing B. that if it is worth doing
C. whether it is worth doing D. if it is worth doing
52. Water will continue to be _____ it is today next in importance to oxygen.
A. how B. which C. what D. as
53. That's_____.
A. how did I become a teacher B. how I became a teacher
C. how a teacher I became D. that I became a teacher
54. They are just _____.
A. that what shall I have B. what shall I have
C. that I shall have what D. what I shall have
55. It looked ____.
A. as if it was going to rain B. that as if it was going to rain
C. as if was it going to rain D. as if that it was going to rain
56. That's_____.
A. how she did it B. that how did she do it.
C. how did she do it D. what she did it
57. That is _____ we decided to put the discussion off.
A. where B. which C. that D. why
58. That’s _____ I lived when I was ten years old.
A. where B. at which C. there where D. when
59. My suggestion is _____ we should send a few comrades to help them.
A. if B. that C. when that D. that where
60. The idea _____ all people are selfish is wrong.
A. what B. that C. why D. if
61. We heard the news _____ our team had won.
A. that B. what C. whether D. why
62. The fact _____ he hadn’t said anything surprised us all.
A. why B. if C. that D. whether
63.I have no idea _____ she will be back.
A. that B. where C. that when D. when
64. We must keep in mind the fact _____ China is still a developing country.
A. whether B. that C. why D. when
65. They have no idea at all _____.
A. where he has gone B. where did he go
C. where has he gone D. which place he has gone
篇5：名词性主语从句语法详解
(1)名词性从句(归属于名词类)：
主语从句
表语从句
宾语从句
同位语从句
(2)形容词性从句(起描绘名词的修饰作用，归属于形容词类)：
定语从句
(3)副词性从句(起描绘谓语动词的修饰作用，归属于副词类)：
状语从句
1.名词性从句
1.1主语从句——一般们于句子的开头，以从属连词引导。
•连接主语从句的连词
纯连词：that(不有词义，只起连接作用，在从句中不充当成分)
whether
连接副词：when, where, how, why
连接代词：what, whatever, who, whoever, which
That Jack got an A for his physics is a surprise.
杰克的物理得了优秀真是令人惊喜的。
That July went to New York is no news now.
朱莉去纽约一事可不是什么新闻了。
注意，此类主语从句通常必成以下形式，显得更平衡自然一些：
It is surprise that Jack got an A for hisphysics.
It is no news now that July went to NewYork.
此类从句中的that是不能省略的，因为省去that后就不看出是从句了。
Whether she agrees or not is nothing to me.
她是否同意对我毫无影响。
Whether we come or not depends on the weather.
我们是否来取决于天气。
此类主语从句中的whether既起连接作用，又有意思，不能省略。
特别需要注意的是：
用whether引导的主语从句，不能使用if代替：
×If she agrees or no is nothing to me.
×If we come or not depends on the wether.
When we set out is not decided yet.
我们何时出发还没定下来呢。
How she succeeded remains a secret.
他怎么成功的仍然是一个秘密。
Where Bob chooses to stay is up to him.
鲍勃选择在哪里居住由他自己决定。
What the teacher stressed will be in the exam paper.
老师强调的内容会出现在考卷中。
Who is the new teacher matters a lot.
谁当新教师关系可大了。
本文载自微信公众号“英语语法学习”。本文已获授权，版权归作者所有，如需转载，请联系原微信公众号“英语语法学习”。
公众号：英语语法学习
篇6：名词性宾语从句语法讲解
1.连接代词who,whom, whose, what, which, whoever,whatever, whichever
连接副词 where, when, how,why
e.g. Do you know what time it is?
He asked whose bike this was.
I’ll tell you why I asked you to come.
You can call me whatever you like.
2. 从属连词whether/ if
e.g. I doubt whether he will succeed or not.
Please let me know whether you want to go.
3. 从属连词that(通常可以省略)
e.g. I know (that) he has returned.
He told us (that) he felt ill.
注意：
连词that引导的名词性从句很少作介词的宾语，只用在
except，but等极少数介词后，此时that不能省略。
本文载自微信公众号“英语语法学习”。本文已获转载授权，版权归作者所有，如需转载，请联系原微信公众号“英语语法学习”。
公众号：英语语法学习
篇7：考研英语名词性从句语法
语法在考研大纲中并做没有明确的说明，容易被忽视，但无论是阅读、完型填空，还是翻译，甚至写作，对语法的考查又是无处不在的。在完型填空中，严格地说，语法是可以作为考题出现的，例如选择连词或代词的题，我们就可以把它们当作语法的题型来解决。
这里我们先总结一下能够涉及到的从句。在考研英语中，总共有三大类型从句，即名词性从句，定语从句和状语。我们这里先看一下名词性从句。名词性从句就是指在句子中起名词作用的从句，其功能相当于名词词组，在复合句中可以担任主语、表语、同位语、介词宾语等。根据它在剧中不同的语法功能，名词性从句可以分为主语从句，宾语从句，表语从句和同位语从句。
1、主语从句
主语从句在复合句中充当主语，为了避免头重脚轻的情况，平衡句子结构，一般用it作形式主语代替处于从句，把主语从句置于句尾。在完型填空中，对主语从句的考查以形式主语it为主。例如：It did not matter what was done in the experiment。(2010)it 作形式主语，关系代词what引导的从句是句子真正的主语。句子含义为：实验中做什么无关紧要。
2、宾语从句
宾语从句在复合句中充当宾语，可以作动词的宾语、介词的宾语。也可以用于动词+it+that 结构，由it 作形式宾语。例如：That kind of activity makes it less likely that the court’s decisions will be accepted as impartial judgments. (2012) 在这句话中，it作形式宾语，而真正的宾语是that 引导的宾语从句。注意在这样的结构中，that是不可省略的。句子的含义为：这种行为使得法院的判决不太可能被视作公正无私。
3、表语从句
标语从句放在系动词后，充当复合句中的表语，一般结构是主语+连系动词+表语从句。引导表语从句的that通常可以省略。可以接表语从句的连系动词有be, look,remain等。另外，常用的结构还有the reason…that(不用because)和it is because…例如：Part of the problem is that the justices are not bound by an ethics code. (2012)这句话中，that从句作连系动词is的表语，说明“问题是什么”。句子的含义为：部分为题在于法官不受道德规范的制约。
4、同位语从句
同位语从句在完型填空中出现的次数很多，广大考生要引起注意。同位语从句用于对名词作进一步解释，说明名词的具体内容。能接同位语从句的应为表示抽象概念的名词，如：idea, belief, fact等。同位语从句一般由that 引导，但也可以用关系代词(what, which, who)、关系副词(when, where, why, how)或者whether …引导。例如：Contrary to the descriptions on record, no systematic evidence was found that levels of productivity were related to changes in lighting. (2010) 在这句话中，句子的主干为no systematic evidence was found，句首Contrary to 作状语， that引导的同位语从句置于谓语部分后。句子的含义为：与所记载的描述相反，没有系统的证据证明生产效率与照明的变化之间存在关联。
以上，我们梳理了一下名词性从句的四种从句。广大考生在复习的时候，要做好区分。祝各位同学复习顺利，考试成功。
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