高中英语高中名词性从句讲解版含答案
名词性从句讲解
【试一试】
一，用that 与what 填空
1.______ he wants is a book.
2. ______ he wants to go there is obvious.
3.The result is ______ we won the game.
4.This is _____ we want to know.
5.Is _____ he told us true ?
6.We should pay attention to ______ the teacher is saying.
7. I have no doubt _____ he will come.
8. I have no idea _____ he did that afternoon.
二、用适当的连词填空：
1.____ you don’t like him is none of my business.
2. ______ we’ll go camping depends on _____ it will be fine tomorrow.
3. _____ she comes or not makes no difference.
4. The question is ____ it is worth doing.
5. There is some doubt ____he will come./ There is no doubt ____he will come.
6. ____ is a fact that English is being accepted as an international language.
7. _____ has helped to save the drowning girl is worth praising.
8. It is said that the famous football star is not willing to play for ______ would pay him three million dollars a year.
9. It was about 600 years ago ____ the first clock with a face and an hour hand was made.
10. --- I drove to Zhuhai for the air show last week.
--- Is that _____ you had a few days off?
11. ---Do you remember____ he came? --- Yes, I do, he came by car.
12. It is generally considered unwise to give a child _____ he or she wants
三．改错：
1. He has come back so early surprises all of us.
2. That he really means is what he doesn’t agree with us.
3. The news which our team had won pleased everyone.
4. The reason why he failed in the exam was because he was too careless.
5. It is unknown that where we will have the meeting.
6. The problem is when will he come back.
7. Could you tell me which was the way to the Science Museum?
8. If he is an engineer is unknown.
9. I have been worrying about if I have hurt her feelings.
10. What he needs are enough time and what I need is enough books.
11. No matter who comes to visit the exhibition is welcome.
12. I’ll make known to all that you were not honest.
13. He is said that he has gone to America.
14. My suggestion is that we will learn more words by heart.
15. Why we decided to put off the meeting is because we had some difficulty in preparing it.
答案：
一、用that或what填空
1. What
2.That
3.that
4.what
5. what
6. what
7. that
8.
二、用适当的连词填空：
1. That
2. Whether, whether
3. Whether
4. whether
5. whether
6. It
7. Whoever
8.whoever 9. that 10. why 11. how 12.whatever
1. 【误】He has come back so early surprises all of us.
【正】That he has come back so early surprises all of us.
【析】that引导名词性从句时,尽管无意义也不充当成分,但除了在动词后引导单个宾语从句时可省略外，其它情况下不能省略。
2. 【误】That he really means is what he doesn’t agree with us.
【正】What he really means is that he doesn’t agree with us.
【析】that和what均可引导名词性从句，区别在于：what在名词性从句中作主语、宾语或表语，而that在名词性从句中不作任何成分，只起连接作用。误句的主语从句应该用what作means的宾语，表语从句中应该用that，因为that在从句中不作任何成分。
3. 【误】The news which our team had won pleased everyone.
【正】The news that our team had won pleased everyone.
【析】which在此句中不充当成分，说明从句不是定语从句而是同位语从句。同位语从句不能用which引导，故改为that。
4. 【误】The reason why he failed in the exam was because he was too careless.
【正】The reason why he failed in the exam was that he was too careless.
【析】主语为reason时，引导表语从句的关联词一般用that，不用because，构成The reason why / for which / that / for ... is that ... 句型。because引导名词性从句只用于It / This / That is because ... 结构。
5. 【误】It is unknown that where we will have the meeting.
【正】It is unknown where we will have the meeting.
【析】名词性从句一般只能用一个引导词，连接词that与连接副词不可并用。
6. 【误】The problem is when will he come back.
【正】The problem is when he will come back.
【析】名词性从句应该用陈述句语序，即“引导词+ 主语+ 谓语”。
7. 【误】Could you tell me which was the way to the Science Museum?
【正】Could you tell me which is the way to the Science Museum?
【析】当主句为过去时态的时候，宾语从句中要用过去的某种时态。但该句中的could不是表示过去，而是表示一种委婉的语气，故宾语从句中的谓语动词应用一般时态。
8. 【误】If he is an engineer is unknown.
【正】Whether he is an engineer is unknown.
【析】if不能用来引导主语从句，在表示“是否”这一意义时要用whether。
9. 【误】I have been worrying about if I have hurt her feelings.
【正】I have been worrying about whether I have hurt her feelings.
【析】if和whether引导动词后的宾语从句时可互换。但介词后的宾语从句及主语从句、表语从句、同位语从句只能用whether引导。
10. 【误】What he needs are enough time and what I need is enough books.
【正】What he needs is enough time and what I need are enough books.
【析】名词性从句作主语时，若表语为单数名词或不可数名词，则谓语动词用单数；若表语为可数名词复数，则谓语动词常用复数。若谓语为动词则用单数。
11. 【误】No matter who comes to visit the exhibition is welcome.
【正】Whoever comes to visit the exhibition is welcome.
【析】“No m atter + 疑问词”结构只能引导让步状语从句，“wh- + ever”既可引导让步状语从句，也可引导名词性从句。
12. 【误】I’ll make known to all that you were not honest.
【正】I’ll make it known to all that you were not honest.
【析】当复合宾语的第一个成分是宾语从句时，须用it作形式宾语，而将真正的宾语从句后置。其句式为：主语+ 动词+ 形式宾语it + 宾补（形容词或名词）+ 宾语从句。又如：I found it quite pleasant that I worked with him.
13. 【误】He is said that he has gone to America.
【正】It is said that he has gone to America.
【析】It is said that是一固定句型，it为形式主语，不可用其他词代替。
14. 【误】My suggestion is that we will learn more words by heart.
【正】My suggestion is that we should learn more words by heart.
【析】主语为suggestion, advice, order, proposal等名词时，表语从句要用虚拟语气，即用“（should）+ 动词原形”的结构。这些名词的同位语从句也要用虚拟语气。
15. 【误】Why we decided to put off the meeting is because we had some difficulty in preparing it.
【正】Why we decided to put off the meeting is that we had some difficulty in preparing it.
【析】why引导主语从句时，表语从句要用that引导。
概念
在复合句中起名词作用的从句叫做名词性从句。它包括主语从句、宾语从句、表语从句和同位语从句。
一、名词性从句
主语从句、表语从句、宾语从句、同位语从句，在整个句子中所起的作用，相当于一个名词。因此，这四种从句通称为名词性从句。
引导名词性从句的连接词可分为三类：
连接词：that, whether, if （不充当从句的任何成分）
连接代词：what, whatever, who, whoever, whom, whose, which.
连接副词：when, where, how, why等
1. 主语从句
作句子主语的从句叫主语从句。主语从句通常由从属连词that，whether，if和连接代词what，who，which，whatever，whoever以及连接副词how，when，where，why等词引导。that在句中无词义，只起连接作用；连接代词和连接副词在句中既保留自己的疑问含义、又起连接作用，在从句中充当从句的成分。例如：
What he wants to tell us is not clear. 他要跟我们说什么，还不清楚。
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（2）It + be + 形容词+ that从句
（3）It + be + 动词的过去分词+ that从句（4）It + 不及物动词+ that 从句
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“(shou ld) +do”，常用的句型有：
It is necessary (important, natural, strange, etc.) that …
It is a pity (a shame, no wonder, etc.) that…
It is suggested (requested, proposed, desired, etc.) that…
2. 宾语从句
名词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，但如从句是并列句时,第二个分句前的that不可省。例如：
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, demand, request, command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”。例如：
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。
例如：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. 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：
a. 引导主语从句并在句首时；
b. 引导表语从句时；c . 引导从句作介词宾语时；d. 从句后有“or not”时；e. 后
接动词不定式时。
例如：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。
Everything depends on whether we have enough money. 一切要看我们是否有足够的钱。
☆可用if的情况
1.Vt.动词后面跟的宾语从句I don’t know whether/if he will come.
2.不作句首的主语从句（it作形式主语的从句）It’s doubtful whether/if he is coming.
4. 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。
例如：I know he studies English every day. （从句用一般现在时）
I know 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 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。
例如：The teacher told us that Tom had left us for America．
5. 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。
例如：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。
3. 表语从句
在句中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。例如：
The fact is that we have lost the game. 事实是我们已经输了这场比赛。
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。
需要注意的，当主语是reason时，表语从句要用that引导而不是because。例如：
The reason why he was late was that he missed the train by one minute this morning
4.同位语从句
在句中作同位语的从句叫同位语从句。它一般跟在某些名词（如fact，idea，news，promise,thought等）的后面，用以说明或解释前面的名词，引导同位语从句的词有连词that，连接副词how，when，where等。例如：
I have no idea when Chaplin’s film will be on again.
We were very excited at the news that our team had won.
The fact that women can work as well as men is clear.
Henry made a promise that he would not open the letter until 2 o’clock.
【巩固练习】
一、单句改错
1. When and where we shall have the lecture are not decided.
2. They want to make it clear to the public which they are doing an important job.
3. He ordered that the injured had been taken good care of.
4. Where will they go is to be discussed at tomorrow’s meeting.
5. This is a fact that English is widely used as an international language.
6. What the earth moves around the sun is known to all.
7. The news they had won the game surprised us.
8. It depends on if it’s going to rain.
9. At the meeting he raised a question if the project would be cancelled.
10. That you need is more practice.
二、单项选择
1. His success was because of ________ he had been working hard.
A. that
B. the fact which
C. the fact that
D. the fact
2. “Is Mary from New York City” “I don't know _______.”
A. from what city does she come from
B. from what city she come
C. what city does she come from
D. what city she comes from
3. ________ makes mistakes must correct them.
A. What
B. That
C. Whoever
D. Whatever
4. The reason why I didn't go to Shanghai was ________ a new job.
A. because I got
B. because of getting
C. I got
D. that I got
5. It worried her a bit ____ her hair was turning grey.
A. while
B. that
C. if
D. for
6. Henry killed the dog. I'll ask him why ________.
A. did he do that
B. he did that
C. he did
D. he has done so
7. Have you seen Henry lately My boss wants to know ________.
A. how he is getting along
B. how is he getting along
C. what he is getting along
D. what is he getting along
8. It is generally considered unwise to give a child ____ he or she wants.
A. however
B. whatever
C. whichever
D. whenever
9. He asked me ________ with me.
A. what is the trouble
B. what wrong was
C. what was the matter
D. what trouble it is
10. I am sure ________ he said is true.
A. that
B. about that
C. of that
D. that what
11. When and why he came here ________ yet.
A. is not known
B. are not known
C. has not known
D. have not bee
12. I wonder how much ________.
A. does the watch cost
B. did the watch cost
C. the watch costed
D. the watch costs
13. Mary is ________ someone might recognize her.
A. afraid of
B. afraid about
C. afraid that
D. afraid for
14.________ is no reason for dismissing her.
A. Because she was a few minutes late
B. Owing to a few minutes late
C. The fact that she was a few minutes late
D. Being a few minutes late
15. They came to the conclusion ________ by a computer.
A. that not all things can be done
B. because of not all things be done
C. being not all things can be done
D. because not all things can be done
16. Why the explosion occurred was ________ the laboratory attendant had been careless.
A. for
B. because
C. since
D. that
17. I don't doubt ________ he'll come.
A. that
B. if
C. what
D. whether
18. —“Why did you go to the wrong class, Mr. Wang”
—“Well, I forget _______ I was supposed to go to.”
A. which the room
B. which room
C. what was the room
D. what room was it
19. Output is now six times ________ it was before liberation.
A. that
B. which
C. what
D. of which
20. Mary: Helen is a mere washer woman, yet she's now buying a big house.
Carol: Yes. Because she's always saved ________.
A. what little she earns
B. how little she earns
C. for little she earns
D. with little she earns
21. ______ surprised me most was ______ such a little boy of seven could play the violin so well.
A. That…what
B. What…that
C. That…which
D. What…which
22. We gave him ________ help we could.
A. which
B. what
C. that
D. this
23. She is pleased with what you have given him and ________ you have told him.
A. that
B. which
C. all what
D. all that
24. Excuse me would you please tell me ________
A. when the sports meet is taken place
B. when is the sports meet going to be held
C. when is the sports meet to begin
D. when the sports meet is to take place
25. Do you happen to know ________
A. what size shoes he wears
B. how big shoes he wears
C. what is the size of his shoes
D. what number shoes are his
26. This book will show you ________ can be used in other contexts.
A. how you have observed
B. how what you have observed
C. that you have observed
D. how that you have observed
27. Where do you think ________
A. has he gone
B. has he been
C. he's gone
D. was he
28. Do you know ________
A. how many populations there are in the world
B. how much population there is in the world
C. how many the population of the world is
D. what the population of the world is
29. Would you go and see ________ outside
A. what to take place
B. what Tom has happened
C. what is happening
D. what the matter had been
30. The subject of "What is interesting is that I do not even know him." is_______.
A. what
B. interesting
C. What is interesting
D. I
31. ________ I think he is Charles.
A. Who do you think he is
B. Do you think who he is
C. Whom do you think he is
D. Do you think who he is
32. He didn't know which room ________.
A. they lived
B. they lived in
C. did they live
D. did they live in
33. The little boy ate ________ his mother gave him.
A. that
B. which
C. whatever
D. no matter what
34. The city is no longer ________.
A. what it is
B. that it used to be
C. which it was
D. what it used to be
35. My parents used ________ they had to get a new car for me.
A. which
B. that
C. what
D. all what
36. ________ we go swimming every day ________ us a lot of good.
A. If…do
B. That…do
C. If…does
D. That…does
37. ________ was the idea _______ the wife thought of
A. What…that
B. That…what
C. How…why
D. Why…how
38. _______ did he tell his wife ________ he wished to do
A. That…what
B. What…that
C. Where…which
D. Which…where
39. One of the men held the view ________ the book said was right.
A. what that
B. that what
C. that which
D. which that
40. I have no idea ________ or not he has finished the work.
A. if
B. that
C. whether
D. which
41. —“Do you know ________”
—“His father is a doctor.”
A. what is his father
B. who is his father
C. what his father is
D. who his father is
42. Is this ________ we met each other two years ago
A. place
B. place in which
C. where
D. place which
43. It ________ Bob drives badly.
A. thinks that
B. is thought what
C. thought that
D. is thought that
44. We all know the truth ________ there are air, water and sunlight there are living things.
A. where
B. wherever
C. that
D. that wherever
45. They discussed ________ they could settle the problem without others' help.
A. if
B. that
C. what
D. whether
46. She asked ________.
A. what I was doing when she rang me up
B. what was I doing when she rang me up
C. when she rang me up what I was doing
D. when did she ring me up what I was doing
47. —May I borrow the ring
—You can take _______ you like.
A. no matter what
B. which
C. whichever
D. that
48. He said that he was fond of ________.
A. what beautiful is
B. what is beautiful
C. beautiful is what
D. what it is beautiful
49. He insisted that he ________ in good health and _______ to work there.
A. was, be sent
B. is, is sent
C. be, was sent
D. be, send
50. Do you know ________ he expects will give us a talk
A. who
B. whom
C. that
D. whose
51. It's uncertain ________ the experiment is worth doing.
A. if
B. that
C. whether
D. how
52. They would have fixed the telephone yesterday _________ it was a holiday.
A. except
B. except for
C. except that
D. but for
53. ________ is to do good all one's life and never do anything bad.
A. Whichever is hard
B. No matter what is hard
C. What is hard
D. All what is hard
54. ________ the boy didn't take medicine made his mother angry.
A. That
B. What
C. How
D. Which
55. As the day was fine, I made the suggestion ________ for a walk in the park.
A. we go
B. we will go
C. should we go
D. that we go
答案：一、1. are→is2. which→that3. had been→（should）be4. will they→they will5. This→It6. What→That7. The news→The news that8. if→whether9. if→whether10. That→What
二、1-5.CDCDB 6-10.BABCD 11-15.ADCCA 16-20.DABCA 21-25.BBDDA 26-30.BCDCC 31-35.ABCDC 36-40.DABBC https://www.360docs.net/doc/2416366107.html,DDD 46-50.ACBAA https://www.360docs.net/doc/2416366107.html,CAD
(完整)高中英语-状语从句练习题及答案详解
状语从句练习题 1.I had been looking for the book for two days____ I found it at last. a.until b. when c. before d. while 2.He punished his students ____ they did anything wrong. a.however b. whenever c. whatever d. whichever 3.Those passengers will wait here____ the bus arrives. a.until b. because c. though d. as 4.Hardly had we reached home ____ it began to rain. a.before b. than c. as soon as d. when 5.No sooner had we arrived at the cinema___ the film began. a.than b. before c. when d. as soon as 6.You can’t watch TV ____ you’ve finished your homework. a.since b. until c. as d. after 7.We had scarcely left our school____ the rain began. a.before b. than c. while d. when 8.We have never seen her again_____ she went to work in another city. a.when b. as c. since d. while 9.____ the fight stopped, travel across the country has been quite safe. a.Since b. When c. After d. Unless 10.They were just about to leave____ the telephone rang.
高中英语从句综合讲解
【宾语从句】 在英语中，有简单句(只含一个谓语动词)、并列句(用连词连接，含不止一个谓语动词)和复合句(含从句)。本节课我们复习复合句里面的宾语从句 ．．．．。 如：She knows that he will come back soon. I’m afraid that I can’t go to your party. 1.宾语从句的【引导词】 宾语从句的引导词分三种。 ●(1) 如果从句是陈述句，引导词用that.（that在口语中常省略） 主句：He says... 从句：He is tired of playing computer games. → He says that he is tired of playing computer games. ●(2) 如果从句是一般疑问句，引导词用if/whether，表示“是否”。 主句：I don’t know… 从句：Does Tom likes fish? → I don’t know if / whether Tom likes fish. 【注意】① whether引导的从句常与or not连用，而if不能； ②宾语从句可简化为whether to do的搭配，而没有if to do这种搭配. 如：Could you tell me whether I should finish my homework today or not? Could you tell me whether to finish my homework today? 【拓展】if有两个意思： 1. 表示“是否”，引导的是宾语从句。动词的时态视情况而定。 2. 表示“如果”，引导的是条件状语从句，时态用一般现在时表示将来（遵循“主将从现”规则）。 经典例题：--Do you know if Tom ____________(go) hiking with us ? --I’m not sure. But i f he ____________(go), I will take many photos with him . ●(3) 如果从句是特殊疑问句，直接用该疑问词来引导。 主句：Do you know… 从句：what does he want to buy? → Do you know what he wants to buy? 你知道他想要买什么吗？ 2. 宾语从句的【时态】 ■(1) 当主句是一般现在时，从句根据情况使用任何时态 如：She wants to know if I have finished my homework. 她想知道我是否已经完成了我的作业。 Do you know when he will be back? 你知道他将会什么时候回来？ ■(2) 当主句是一般过去时，从句应使用过去的某时态 如：He said that she was singing. 他说她正在唱歌。 She wanted to know if I had finished my homework. 她想知道我是否已经完成了作业。 Did you know when he would come back? 你知道他将会什么时候回来？ 【注意】格言和客观真理总是用一般现在时。 如：She told me yesterday (that) the earth travels around the sun.
高中英语状语从句讲解汇总
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高中英语语法_状语从句练习30题及详解
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高中英语状语从句100题
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(完整word版)高中英语状语从句用法详细解析
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(完整版)高中英语定语从句讲解及练习
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用一个名词短语。)如： Use your head, and you will find a good idea.动脑筋想一想，你就会想出一个好主意。 Another word, and I will beat you.你再说一句，我就揍你。 句型5 If +necessary / impossible/ important等，+主句.(注意：if与形容词之间的it is被省略。)如： If necessary, I will do it. 如果有必要的话，我来做此事。 2原因状语从句 句型1 主句+in case+从句.(in case表示以免)如： I will take my raincoat in case it rains.我要把雨衣带上以免下雨。 句型2 主句+due to / because of / owning to / + the fact that +从句。如： He did not come to school because of the fact that he was ill.由于他有病了，所以没有来上学。 高中英语 以形式主语it引导的句型 句型1 It (so) happened(chanced) that +clause. = sb. happened /chanced to do sth. =sb.did sth. by chance. 如： It happened that he was out when I got there.
详解高中英语三大从句
1.Jack bought a car. 2.Ricky was a brilliant student and he passed the exam easily. 3.John did not go to school yesterday since he was sick. 4.James ran fast but he could not win the race because his start was late. Look at the second sentence. It contains two parts: ★Ricky was a brilliant student. ★He passed the exam easily. Now look at the third sentence, it too has two parts: ★John did not go to school yesterday. ★Since he was sick. Now look at the fourth sentence, it has 3 parts (or clauses): ★James ran fast ★He could not win the race ★Because his start was late ★Noun clauses ★Adjective clauses ★Adverb clauses
1.I expect to win the race. 2.I expect that I shall win the race. 3.That you had met him before makes me surprised. 1.The bag with a red apple logo is mine 2. The bag which has a red apple logo is mine. 1.John stopped working in the evening (When?) 2.John stopped working when the evening came (When?) 1.The subject of a verb. 2.The object of a transitive verb. 3.The object of a preposition. 4.In apposition to a noun or pronoun. 5.The complement of a verb of incomplete prediction. the subject of the verb: ★How he could assist me was his concern. ★Whether we can start next week seems uncertain. ★That you did so surprises me. ★What I said was true.
高中英语状语从句讲解
高中状语从句讲解+练习 状语通常由副词、介词短语、动词不定式、分词和从句等担当。例如： 1. Naturally , our grandparents were pleased to get our phone call . (副词) 2. We worked hard , from sunrise to sunset . (介词状短语) 3. To help my disabled aunt , I spend an hour working in her house every day . (不定式) 4. Seen from a distance , the farmhouse looked deserted . (过去分词) 5. I know how to light a camp fire because I had done it before .（原因状语从句） 状语从句主要用来修饰主句或主句的谓语。一般可分为九大类，尽管种类较多，但由于状语从句与汉语结构和用法相似，所以理解和掌握它并不难。状语从句的关键是要掌握引导不同状语从句的常用连接词和特殊的连接词即考点。现分别列举如下: 1．时间状语从句 常用引导词：when, as, while, as soon as, while, before, after, since , till, until 特殊引导词：the minute, the moment, the second, the instant, immediately , directly, every time, the day，no sooner …than, hardly …when, scarcely …when （1）Tell him I need to see him the minute he arrives. 他一到就告诉他我要见他。 （2）The children ran away from the orchard(果园) the moment they saw the guard. The moment he saw me, he ran away. 他一看见我，就跑了。 He said he’d call you the moment he got home. 他说他一到家就给你打电话 （3）The instant I saw him, I knew he was the man from the restaurant. （4）Immediately you begin to speak, he gives you his full attention.你只要一开始说话，他就全神贯注地听。 （5）My sister came directly she got my message. 我妹妹一收到我的信息就来了。 （6）Every time I listen to your advice, I get into trouble. （7）no sooner... than... ，"一...就..." ，引导时间状语从句,主句用过去完成时,"than"后面的从句用一般过去时.(从这里可以知道,no sooner后面是主句;than后面是从句) 例: I had no sooner reached home than it began to rain. 我一到家天就下起雨来 No sooner ...than...常放在句首,表示强调.这时主句要倒装. 例:No sooner had I reached home than it began to rain. （8）He had hardly sat down when the telephone rang.他刚坐下电话就响了。 He had scarcely sat down when there was a knock at the door. 他刚坐下就有人敲门 另外，如果把hardly放于句首，主句要用倒装结构。如： Hardly had I finished eating when he came in. 我刚吃完他就进来了。 2．地点状语从句 常用引导词：where 特殊引导词：wherever, anywhere, everywhere Generally, air will be heavily polluted where there are factories. She was standing exactly where you are standing now那时他就站在你现在站的地方。 Stay where you are.呆在原地别动。 Wherever you go, you should work hard. Sit anywhere you like 随便坐吧 3．原因状语从句
高中英语语法---条件状语从句讲解
条件状语从句 概念定义 由引导词if或unless引导的状语从句叫做条件状语从句。在英文中，条件是指某一件事情实现之后（状语从句中的动作），其它事情（主句中的动作）才能发生，通常译作“假如”。（注意：在含有条件状语从句的复合句中，表示将来时态，主句是一般将来时态,祈使句或情态动词，从句要用现在时态,[主将从现原则]（主将从现，将并非指将来时，还指表示将来含义的，跟着if后的那句话是从句。） 类型 条件状语从句 语法引导条件状语从句最常用的连词是if,由if引导的条件状语从句表示在某种条件下某事很可能发生。如： 1） If you ask him,he will help you. 如果你请他帮忙，他会帮你的。 2） If you fail in the exam,you will let him down. 如果你考试不及格，你会让他失望的 if引导的条件状语从句既可以将从句放前面也可以将从句放后面 （如果天下雨，我们就不玩了）If it rains,we will stop playing.‘ 转为We will stop playing if it rains. if引导的条件状语从句
另外，if从句还表示不可实现的条件或根本不可能存在的条件，也就是一种虚拟的条件或假设，从句多用一般过去时或过去完成时。如：If I were you,I would invite him to the party.如果我是你，我会邀请他参加聚会。I would have arrived much earlier if I had not been caught in the traffic.如果没有堵车，我会到的早一点儿。 那么，除了if之外，是否还有其他连词也可以引导条件状语从句呢?回答是肯定的，不仅有，还有很多。这些词由于出现的频率较小，且用法较复杂一些，所以不如if为大家所熟知罢了。下面就这些词的用法以例句的形式进行一下简单总结。 1、unless conj.除非，若不，除非在……的时候 You will fail to arrive there in time unless you start earlier.如果你不早点动身，你就不能及时赶到那儿。 Unless it rains,the game will be played.除非下雨，比赛将照常进行。 2、on condition(that)...在……条件下，如果 on condition (that)...引导的条件从句是主句事件发生的前提条件或唯一条件。 I can tell you the truth on condition that you promise to keep a secret.我可以告诉你真相，条件是你答应保密。 You can go swimming on condition (that) you don't go too far from the river bank.你只有在不远离河岸的条件下才可以下水游泳。 3、supposing conj.如果，假如 supposing引导的条件从句表示一种假设条件。 Supposing it rains,shall we continue the sports meeting?倘若下雨，我们的运动会还要继续举行吗? Supposing anything should go wrong,what would you do then?假如出了什么问题，你准备怎么对付?