“小怪”通过精心收集，向本站投稿了6篇名词性从句讲义，下面是小编整理后的名词性从句讲义，欢迎您能喜欢，也请多多分享。
篇1：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 2000 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2：名词性that-从句
1）由从属连词that引导的从句叫做名词性that-从句。 that只起连接主句和从句的作用，在从句中不担任任何成分，本身也没有词义。名词性that-从句在句中能充当主 语、宾语、表语、同位语和形容词宾语，例如：
主语：that he is still alive is sheer luck. 他还活着全靠运气。
宾语：john said that he was leaving for london on wednesday. 约翰说他星期三要到伦敦去。
表语：the fact is that he has not been seen recently. 事实是近来谁也没有见过他。
同位语：the fact that he has not been seen recently disturbs everyone in his office.
近来谁也没有见过他，这一事实令办公室所有的人不安。
形容词宾语：i am glad that you are satisfied with your job.
你对工作满意我感到很高兴。
2）that-从句作主语通常用it作先行词，而将that-从句置于句末，例如：
it is quite clear that the whole project is doomed to failure. 很清楚，整个计划注定要失败。
it's a pity that you should have to leave. 你非走不可真是件憾事。
用it作形式主语的that-从句有以下四种不同的搭配关系：
a. it + be +形容词+ that-从句
it is necessary that… 有必要……
it is important that… 重要的是……
it is obvious that… 很明显……
b. it + be + -ed 分词+ that-从句
it is believed that… 人们相信……
it is known to all that… 从所周知……
it has been decided that… 已决定……
c. it + be +名词+ that-从句
it is common knowledge that… ……是常识
it is a surprise that… 令人惊奇的是……
it is a fact that… 事实是……
d. it +不及物动词+ that-分句
it appears that…似乎……
it happens that…碰巧……
it occurred to me that… 我突然想起……
篇3：名词性wh-从句
1）由wh-词引导的名词从句叫做名词性wh-从句。wh-词包括who, whom,. whose, whoever, what, whatever, which, whichever等连接代词和where, when, how, why等连接副词。wh-从句的语法功能除了和that-从句一样外，还可充当介词宾语、宾语补语和间接宾语等，例如：
主语： how the book will sell depends on its author. 书销售如何取决于作者本人。
直接宾语：in one's own home one can do what one likes. 在自己家里可以随心所欲。
间接宾语：the club will give whoever wins a prize.
俱乐部将给得胜者设奖。
表语： my question is who will take over president of the foundation. 我的问题是谁将接任该基金会主席职位。
宾语补足语：she will name him whatever she wants to. 她高兴给他起什么名字就取什么名字。
同位语： i have no idea when he will return.
我不知道他什么时候回来。
形容词宾语：i'm not sure why she refused their invitation. 我尚不能肯定她为什么拒绝他们的邀请。
介词宾语： that depends on where we shall go.
那取决于我们去哪儿。
2）wh-从句作主语也常用先行词it做形式主语，而将wh-从句置于句末，例如：
it is not yet decided who will do that job.
还没决定谁做这项工作。
it remains unknown when they are going to get married. 他们何时结婚依然不明。
篇4：名词性that-从句
1）由从属连词that引导的从句叫做名词性that-从句。 That只起连接主句和从句的`作用，在从句中不担任任何成分，本身也没有词义。名词性that-从句在句中能充当主 语、宾语、表语、同位语和形容词宾语，例如：
主语：That he is still alive is sheer luck. 他还活着全靠运气。
宾语：John said that he was leaving for London on Wednesday. 约翰说他星期三要到伦敦去。
表语：The fact is that he has not been seen recently. 事实是近来谁也没有见过他。
同位语：The fact that he has not been seen recently disturbs everyone in his office.
近来谁也没有见过他，这一事实令办公室所有的人不安。
形容词宾语：I am glad that you are satisfied with your job.
你对工作满意我感到很高兴。
2）That-从句作主语通常用it作先行词，而将that-从句置于句末，例如：
It is quite clear that the whole project is doomed to failure. 很清楚，整个计划注定要失败。
It's a pity that you should have to leave. 你非走不可真是件憾事。
用it作形式主语的that-从句有以下四种不同的搭配关系：
a. It + be +形容词+ that-从句
It is necessary that… 有必要……
It is important that… 重要的是……
It is obvious that… 很明显……
b. It + be + -ed 分词+ that-从句
It is believed that… 人们相信……
It is known to all that… 从所周知……
It has been decided that… 已决定……
篇5：名词性wh-从句
名词性wh-从句
1）由wh-词引导的名词从句叫做名词性wh-从句。Wh-词包括who, whom,. whose, whoever, what, whatever, which, whichever等连接代词和where, when, how, why等连接副词。Wh-从句的语法功能除了和that-从句一样外，还可充当介词宾语、宾语补语和间接宾语等，例如：主语： How the book will sell depends on its author. 书销售如何取决于作者本人。
直接宾语：In one's own home one can do what one likes. 在自己家里可以随心所欲。
间接宾语：The club will give whoever wins a prize.
俱乐部将给得胜者设奖。
表语： My question is who will take over president of the Foundation. 我的问题是谁将接任该基金会主席职位。
宾语补足语：She will name him whatever she wants to. 她高兴给他起什么名字就取什么名字。
同位语： I have no idea when he will return.
我不知道他什么时候回来。
形容词宾语：I'm not sure why she refused their invitation. 我尚不能肯定她为什么拒绝他们的邀请。
介词宾语： That depends on where we shall go.
那取决于我们去哪儿。
2）Wh-从句作主语也常用先行词it做形式主语，而将wh-从句置于句末，例如：
It is not yet decided who will do that job.
还没决定谁做这项工作。
It remains unknown when they are going to get married. 他们何时结婚依然不明。
篇6：名词性从句句子
主语从句
主语从句通常由下列词引导：
1）从属连词that、whether、if等；
2）连接代词what、who、which、whatever、whoever、whom 等；
3)连接副词how、when、where、why 等。
that在句中无词义，只起连接作用；连接代词和连接副词都在句中既保留自己的疑问含义、又起连接作用，在从句中充当主语的成分。注：whom、who指人，what指物，whatever、whoever表示泛指意义。例如：
What he wants to tell us is not clear. 他要跟我们说什么，还不清楚。
Who will win the match is still unknown. 谁能赢得这场比赛还不得而知。
It is known to us how he became a writer. 我们都知道他是如何成为一名作家的。
Where the English evening will be held has not yet been announced. 英语晚会将在哪里举行，还没有宣布。
有时为避免句子头重脚轻，常用形式主语it代替主语从句作形式主语放于句首，而把主语从句置于句末。主语从句后的谓语动词一般用单数形式。常用句型如下：
（1）It be+ 名词 + that从句
It's a great pity that they didn't get married.
他们没能结婚，真是令人惋惜。
It 's a good thing that you were insured.
你保了险，这可是件好事。
（2）It be + 形容词 + that从句
It's splendid that you passed your exam.
你通过考试了，真棒。
It's strange that there are no lights on.
真奇怪，没有一盏灯是开着的。
（3）It be + 动词的过去分词+ 主语从句
It's said that he has been there many times.
据说他去过那儿很多次。
（4）It +不及物动词+ that 从句[1]
另注意在主语从句中用来表示惊奇、不相信、惋惜、理应如此等语气时，谓语动词要用虚拟语气“(should) +do”，常用的句型有：
It is necessary (important, natural, strange, etc.) that …
It is suggested (requested, proposed, desired, etc.) that…
(5) it seems/happens+that 从句
(6)众所周知的几种表达方式
①It is known to us that.
②As is known to us.
③What is known to us is that.
it引导的强调句结构：It is/was+被强调部分+that/who+句子其它部分。
eg:My father did the experiment in the lab yesterday evening.
强调主语：It was my father who did the experiment in the lab yesterday evening.
强调宾语：It was the experiment that my father did in the lab yesterday evening.
强调时间：It was yesterday evening that my father did the experiment in the lab.(注意不用when)
强调地点：It was in the lab that my father did the experiment yesterday evening.
宾语从句
名词从句用作宾语的从句叫宾语从句。引导宾语从句的关联词与引导主语从句表语从句的关联词大致一样，在句中可以作谓语动词或介词及非谓语动词的.宾语。
1. 由连接词that引导的宾语从句。
由连接词that引导宾语从句时，that在句中不担任任何成分，在口语或非正式的文体中常被省去，但如果从句是并列句时,第二个分句前的that不可省。
He has told me that he will go to Shanghai tomorrow. 他已经告诉我他明天要去上海。
We must never think (that) we are good in everything while others are good in nothing. 我们决不能认为自己什么都好，别人什么都不好。
注意：在demand、order、suggest、decide、insist, desire, request, command, doubt等表示要求、命令、建议、决定等意义的动词后，宾语从句常用“（should）+ 动词原形”。
I insist that she (should) do her work alone. 我坚持要她自己工作。
The commander ordered that troops (should) set off at once. 司令员命令部队马上出发。
2. 用who，whom, which, whose, what, when, where, why, how, whoever, whatever, whichever等关联词引导的宾语从句相当于特殊疑问句，应注意句子语序要用陈述语序。
I want to know what he has told you. 我想知道他告诉了你什么。
She always thinks of how she can work well. 她总是在想怎样能把工作做好。
She will give whoever needs help a warm support. 凡需要帮助的人，她都会给予热情的支持。
3.可运用it做形式宾语。
①动词make, find ,think,feel,consider,believe等后面有宾语补足语的时候，则需要用it做形式宾语，而将that宾语从句后置，结构：S.+vt+it+adj./n.+oc(宾语补足语)。
I think it necessary that we take plenty of hot water every day.我认为每天多喝开水是有必要的。
I feel it a pity that I haven't been to the get-together.我没去聚餐，感觉非常遗憾。
②有些动词带宾语从句时需要在宾语与从句前加it，这类动词主要是：hate,take,owe,have,see to
I hate it when they talk with their mouths full of food.我讨厌他们满嘴食物时说话。
We take it that you will agree with us.我们认为你会同意我们的。
He will have it that our plan is really pratical.他认为我们的计划确实可行。
4.用whether或if引导的宾语从句，其主语和谓语的顺序也不能颠倒，仍保持陈述句语序。此外，whether与if 在作“是否”的意思讲时在下列情况下一般只能用whether，不用if：
①whether引导主语从句在句首时；
Whether there is life on the moon is an interesting question. 月球上有没有生命是个有趣的问题。
Whether he can come to the party on time depends on the traffic.他能否准时参加派对得看交通情况。
②宾语从句放在句首表示强调时，只能用whether；
Whether this is true or not, I really don't know.这是否真实，我也不知道。
③引导表语从句，只能用whether；
The question is whether we can get in touch with her.问题是我们是否能联系上她。
④引导介词宾语时,只能用whether；
His father is worried about whether he lose his work.他的父亲担心他是否会失去工作。
I'm thinking about whether I should quit my present job.我正在考虑我是否应该辞去现 在的工作。
Everything depends on whether we have enough money.一切要看我们是否有足够的钱。
⑤if与whether都可以与or not连用，但后面紧跟着or not时只能用whether；
We didn't know whether or not she was ready.（此时只能用whether）
I wonder whether/if the news is true or not.（此时则二者都可以用）
⑥后接动词不定式时，用whether；
Can you tell me whether to go or to stay? 你能否告诉我是去还是留？
I can't decide whether to stay.我不能决定是否留下。
⑦用if会引起歧义时，只用whether；
Could you tell me if you know the answer ?
这句话有两种意思：“你能告诉我是否知道答案吗？”或“如果你知道答案，请告诉我，好吗？”。如用whether可避免歧义.
⑧whether可引导同位语从句，if不能引导同位语从句。
The question whether we should call in a specialist was answered by the family doctor.我们是否请专家由家庭医生来定。
5. 注意宾语从句中的时态呼应，当主句动词是现 在时，从句根据自身的句子情况，而使用不同时态。
I know (that) he studies English every day. （从句用一般现在时）
I know (that) he studied English last term. （从句用一般过去时）
I know (that) he will study English next year. （从句用一般将来时）
I know (that) he has studied English since 1998. （从句用现在完成时）
当主句动词是过去时态（could, would除外），从句则要用相应的过去时态，如一般过去时，过去进行时，过去将来时等；当从句表示的是客观真理，科学原理，自然现象，则从句仍用现 在时态。
The teacher told us that Tom had left us for America．
All of us know that the moon moves round the earth.
6. think, believe, imagine, suppose等等动词引起的否定性宾语从句中，要把上述主句中的动词变为否定式。即将从句中的否定形式移到主句中。
We don’t think you are here. 我们认为你不在这。
I don’t believe he will do so. 我相信他不会这样做。
表语从句
在复合句中，位于系动词之后作表语的从句叫表语从句。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，表语从句位于系动词后，有时用as if引导。
其基本结构为：主语+ 联系动词+ that从句
1.that 引导表语从句，无词义，只起连接作用，不可省。
2.联系动词可为be,look,seem,sound,appear等。
3.主语可为名词fact,truth,cause,question,explanation,trouble,assumption,belief等，代词this,that,these,it等。
The fact is that we have lost the game. 事实是我们已经输了这场比赛。
That’s just what I want. 这正是我想要的。
This is where our problem lies. 这就是我们的问题所在。
That is why he didn’t come to the meeting. 那就是他为什么不到会的原因。
It looks as if it is going to rain. 看上去天要下雨了。
Raw material is what we are badly in need of.原材料是我们所急需的。
China is not what it used to be.中国已不是过去的中国了。
★ 名词性从句练习题
名词性从句讲义（共6篇）
