最新主语从句练习.docx

1、最新主语从句练习主语从句讲解及练习 主语从句一、概述：在句子中起名词作用的各种从句统称为名词性从句。根据它们在句中的语法作用，这类从句又可分为主语从句、同位语从句、表语从句和宾语从句。 二.主语从句主要有三类：（1） 由连词that引导的主语从句:引导词that无含义,在句中不做成分,不可以省。例如：That you will win the medal seems unlikely.你想获得奖牌看起来是不可能的。That you are so indifferent bothers me.你如此冷淡使我很烦恼。That she survived the accident is a mirac

2、le.她在事故中幸免于难简直是奇迹。（2） 用连词 whether 引导的主语从句:whether有含义(是否),在句中不做成分,不可以省。例如：Whether she is coming or not doesnt matter too much.她来不来都无关紧要。（3） 用连接代词引导的主语从句(在由连接代词who, whose, whom, which, what, whoever, whomever, whichever, whatever引导的名词性从句中，其连接代词在句中起名词性作用，担当一定成分).例如：What you need is more practice.你所需要的是

3、更多的训练。What I want to know is this. 我想知道的就是这事。Whatever we do is to serve the people.我们无论做什么都是为人民服务。（4）连接副词when, where, why, how引导的名词性从句(其连接副词有含义,在句中作状语。)eg:Where we should leave it is a problem.When they will come hasnt been made pubic.他们什么时候来还不知道。三.注意点:1.it 做形式主语,而将主语从句放在句末（尤其是当谓语较短时）。例如：That light

4、travels in straight lines is known to all.光沿直线传播，这是众所周知的事。=It is known to all that light travels in straight lines.众所周知光沿直线传播。When the plane is to take off has not been announced .飞机何时起飞还没有宣布。= It has not been announced when the plane is to take off.还没有宣布飞机何时起飞。(当what引导的主语从句表示“的东西”时，一般不用it作形式主语。)错:I

5、t is a book what he wants.对:What he wants is a book. 他想要的是本书。例如：Has it been settled who will be sent to carry out the task ?谁将被派去执行这项任务决定了吗 ？固定用法和译法（1） It is +名词+从句It is a fact that 事实是It is good news that 是好消息It is a question that 是个问题It is common knowledge that 是常识类似的名词还有：a pity；a wonder；a good th

6、ing； no wonder； surprise等。例如：It is a mystery to me how it all happened.这一切是怎么发生的是个谜。It is common knowledge that the whale is not a fish.鲸鱼不是鱼，这是常识。It is no surprise that Bob should have won the game.鲍勃会赢得这场比赛，这不足为奇。（2） It is +形容词+从句It is necessary that 有必要It is clear that 很清楚It is likely that 很可能It

7、is important that 重要的是类似的形容词还有：strange; natural; obvious; true; good; wonderful; possible; unlikely; quite; unusual; certain; evident; worth-while; surprising; interesting; astonishing, etc.例如：It is obvious that conductors and insulators are both important in industry.很明显导体和绝缘体在工业中都很重要。It is doubtfu

8、l whether she will be able to come.她是否能来令人怀疑。It was really astonishing that he refused to talk to you .他拒绝和你说话真是令人惊讶。It is essential that he should be here by the weekend .周末之前，他应该到这里是必要的。It seems obvious that we can not go on like this.很明显我们不能这样下去了。（3） It is +过去分词+从句It is said that 据说It is reported

9、 that 据报道It has been proved that 已证明It must be proved that 必须指出类似的过去分词还有：known; estimated; expected; believed; thought; hoped; noted; discussed; required; decided; suggested; demanded; made clear; found out,etc.例如：It is thought that he is the best player.大家都认为他是最好的选手。It is estimated that the vase is

10、 2000 years old.据估计这个花瓶有2000年的历史。It is used to be thought that a new star must be due to a collision between two stars. 过去一直认为新星是由于两颗星星之间碰撞产生的。It has not been made clear when the new road is to be opened to traffic.还没弄清楚这条路将开始通车。It does not matter if I missed my train, because there is another later

11、.没有赶上这趟火车没有关系，稍晚还有一趟。It happened that I saw him yesterday.碰巧我昨天看见他了。当“及物动词 + 宾语”较短时，也可用这种结构。例如：It shocked me that Peter did not tell anybody where he was.让我吃惊的是彼得没有告诉任何人他在哪里。It does not interest me whether you go or not.我对你去不去不感兴趣。2.只用whether不用if引导主语从句.填空11. _ as much as one-fifth of all timber harv

12、ested is not used.2. _ some mammals came to live in the sea is not known.3. _ we have achieved is attributed to the guidance of our parents.4. _ wealthy does not necessarily mean that a man is greedy.5. Although _ happened in this developed country sounds like science fiction, it could occur elsewhe

13、re in the world.6. _ she had forgotten to take her notebook.7. I am sure that _ she said is wrong.8. We lost our way in the forest, and _ made matters worse was that it was getting dark.9. _ some mammals came to live in the sea is not known.10. _ or not is still uncertain.11. Its _ hell be able to c

14、ome.12. _ he is at work in the heart of the big city or at home in the quiet suburb, Dicks life is tied to machines.13. _ he saw both surprised and frightened him.14. _ is a spell of warm sunshine.15. _ is a pity that he should feel so upset. 16. _ a spoonful of soil can tell us so much about the st

15、ructure and early history of the moon.17. _ you nominate will be elected. 18. _ book you borrow must be returned within a week.19. _ of us gets home first starts cooking.20. _orders he gives are obeyed.填空21._ makes mistakes must correct them.2. It worried her a bit _ her hair was turning grey.3.When

16、 and why he came here _ yet.4. _ is no reason for dismissing her.5. _ Tom liked to eat was different from _.6._ we go swimming every day _ us a lot of good.7.It _ Bob drives badly.8.Its uncertain _ the experiment is worth doing.9._ the boy didnt take medicine made his mother angry.10._ we cant get s

17、eems better than _ we have.11._ you dont like him is none of my business.12._ well go camping tomorrow depends on the weather.13._is going to do the job will be decided by the Party committee.14._well finish translating the book depends on the time.15._he wont go there is clear to all of us.16._the

18、house will be built will be discussed at tomorrows meeting.17. ._you come or not is up to you.18._makes mistakes must correct them.19._team will win the match is a matter of public concern.20._leaves the room last ought to turn off the lights.A. is not known C. The fact that she was a few minutes la

19、teD. Whatwhat you had expected主语从句练习题即学即用 I. 用适当的词填空,使句子意思完整。1. _ he didn t attend the meeting yesterday wasn t quite clear.2. The Foreign Minister said, “ It is our hope _ the two sides will work towards peace.”3. _ team will win the match is still unknown.4. _ comes to the party will receive a pre

20、sent.5. _ Mary has left is still a question.6. It s reported _ three people were killed in the accident and five were hurt badly.7. _ he solved the problem successfully interested all of us.8. We usually think _ we can t get seems better than what we have.9. It is a fact _ English is being accepted

21、as an international language.10. _ is to be sent there to solve the problem hasn t been decided. II. 下列各句中均有一处错误,请改正。1. That the old man s son wanted to know was where the gold had been hidden.2. It is reported when China has successfully sent Shenzhou VI spaceship into space.3. If he can finish his

22、 task on time is of great importance.4. Whether the 2008 Olympic Games will be held in Beijing excited the whole nation.5. After Yang Liwei succeeded in circling the earth, which our astronauts desire to do is walk in space.6. Whatever leaves the room last ought to turn off the lights.7. Why they wi

23、ll solve the serious problem today has not been decided.8. When will win the English competition is still a problem.9. How our spring sports meet will be held or not this week is not known yet.10. It s strange when he should have gone away without telling us. GRAMMAR主语从句学习指导寻规找矩 请观察下列句子,注意主语从句的用法。1.

24、 That the earth travels round the sun is a well-known fact.2. It is uncertain whether the artist can do it or not.3. Who will act the lead in the play has not been decided yet.4. Where the young man has gone is not known.5. It is not yet decided when and where the test will be given.常见错误展示 下列各句均有一处错

25、误,请改正并分析错误的原因。1. Light travels faster than sound is common knowledge.2. If she s coming or not doesn t matter much.3. That the professor said is of great importance.4. Where will the trees be planted has not been decided.5. No matter who breaks the rule will be punished.6. When and where the meeting

26、 will be held still remain a question.7. What were your problems a year ago has now become mine.8. It was requested that everyone made a speech at the meeting.C) what part they play in D) in what part they play1. It didn t surprise us at all _ he was post to Hong Kong.A) why B) how C) what D) that?

27、6. It is pretty well understood _ controls the flow of carbon dioxide in and out the atmosphere today.A) that B) that what C) what D) how6. _ we ll go camping tomorrow depends on the weather.A) If B) Whether C) That D) Where7. _ we ll go camping tomorrow has kept us all excited the whole day.A) If B

28、) Whether C) That D) Where8. He will tell us _ he thinks of our arrangement.A) that B) what C) how D) if9. Sarah hopes to become a friend of _ shares her interests.A) whoever B) whomever C) no matter who D) no matter whom E) anyone11. _ his failure lies is expected _ clear to us.A) What to make B) H

29、ow madeC) Where to be made D) Why making2. Dr. Smith comes from either Yale or Harvard I can t remember _.A) where B) there C) which D) that3. You can depend on _ promise he makes.A) anything that B) which C) whatever D) whose5. We never know _ he is. They say he is a salesman.A) who B) what C) how

30、D) which E) whoever4. The main fact(or)s in human life are five: birth, food, sleep, love and death. (One could increase the number add breathing for instance but these five are the most obvious.) Let us ask ourselves _ our lives.A) they play in what part B) they play what part in5. I really don t see _.A) what is the fun of playing dead B) what the fun of playing dead isC) what fun to play dead is D) what is the fun to play dead6. A lo