高三英语语法复习六：状语从句

语法复习六：状语从句

由从句担任的状语，在句子中可修饰谓语（或其它动词）、形容词、副词或是整个句子，它可以用来表示时间、地点、原因、目的、结果、条件、方式、比较、让步等。状语从句是一较大的语法项目，也是近几年高考题中常见的一个重要试点。高考中已考查了时间、让步、地点、条件、目的等状语从句，这些从句仍是今后高考热点，应作充分准备。同时对方式状语从句也应引起重视。

（一）时间状语从句

表示时间的状语从句可由when, as, while, whenever, after, before, till (until), since, once, as soon as (或the moment ), by the time, no sooner … than, hardly (scarcely) … when, every time等引导。

e.g. When I came into the office, the teachers were having a meeting.

He started as soon as he received the news.

Once you see him, you will never forget him.

No sooner had I gone to bed than I went to sleep.

（二）原因状语从句

原因状语从句是表示原因或理由的，引导这类从句的最常用的连词是because, since, as , now that（既然）等，for 表示因果关系时（它引导的不是从句）为并列连词，语气不如because强。

e.g. He is disappointed because he didn't get the position.

As it is raining, I will not go out.

Now that you mention it, I do remember.

（三）地点状语从句

引导地点状语从句的连词是where 和wherever等。

e.g. Sit wherever you like.

Make a mark where you have a question.

（四）目的状语从句

引导目的状语从句最常用的词（组）是so, so that（从句谓语常有情态动词）, in order that, in case（以防，以免）等。

e.g. Speak clearly, so that they may understand you.

She has bought the book in order that she could follow the TV lessons.

He left early in case he should miss the train.

（五）结果状语从句

结果状语从句是表示事态结果的从句，通常主句是原因，从句是结果。由so that （从句谓语一般没有情态动词）, so … that, such … that等引导。

e.g. She was ill, so that she didn’t attend the meeting.

He was so excited that he could not say a word.

She is such a good teacher that everyone admires her.

（六）条件状语从句

条件状语从句分真实性（有可能实现的事情）与非真实性（条件与事实相反或者在说话者看来不大可能实现的事情）条件句。引导条件状语从句的词（组）主要有if, unless, so (as) long as, on condition that, so (as) far as, if only ( = if )。注意：条件从句中的if 不能用whether替换。

e.g. If he is not in the office, he must be out for lunch.

You may borrow the book so long as you keep it clean.

So far as I know（据我所知）, he will be away for three months.

You can go swimming on condition that ( = if ) you don’t go too far away from the river bank.

If he had come a few minutes earlier, he could have seen her.

（七）让步状语从句

让步状语从句可由although, though, as, even i f (though), however, whatever, whether … or, no matter who (when, what, …)等引导。注意：as引导的让步状语从句一般是倒装的。

e.g. Though he is a child, he knows a lot.

Child as he is, he knows a lot.

Whatever ( = No matter what ) you say, I’ll never change my mind.

（八）方式状语从句

方式状语从句常由as, as if (though), the way, rather than等引导。

e.g. You must do the exercise as I show you.

He acted as if nothing had happened.

（九）比较状语从句

比较状语从句常用than, so (as) … as, the more … the more等引导。

e.g. I have made a lot more mistakes than you have.

He smokes cigarettes as expensive as he can afford.

The busier he is, the happier he feels.

（十）使用状语从句时要注意的几个问题

1、在时间和条件（有时也在方式、让步等）从句中，主句是一般将来时，从句通常用一般现在时表示将来。

e.g. We’ll go outing if it doesn’t rain tomorrow.

I’ll write to you as soon as I get to Shanghai.

2、有些时间、地点、条件、方式或让步从句，如果从句的主语与主句主语一致（或虽不一致，是it），从句的谓语又包含动词be ，就可省略从句中的“主语+ be”部分。

e.g. When (he was) still a boy of ten, he had to work day and night.

If (you are) asked you may come in.

If (it is) necessary I’ll explain to you again.

3、注意区分不同从句：引导的是什么从句，不仅要根据连词，还要根据句子结构和句意来判别。以where为例，能引导多种从句。

e.g. You are to find it where you left it.（地点状语从句）

Tell me the address where he lives.（定语从句，句中有先行词）

I don’t know where he came from.（宾语从句）

Where he has gone is not known yet.（主语从句）

This place is where they once hid.（表语从句）

练习、状语从句

一、用横线划出下列句子中的状语从句，并指出是哪种状语从句：

1. Child as she is, she knows a lot of things.

2. The more I can do for the class, the happier I’ll be.

3. He talks as if (as though) he knew all about it.

4. He is such a good teacher that the students love and respect him.

5.I shall go to the park unless it rains.

6. No sooner had I got home than it began to rain.

7. Where there is water, there is life.

8. He studied hard so that he could catch up with his classmates.

9. Since you are very busy, I won't trouble you.

10. Even if (though) I fail. I’ll never lose heart.

11. Once you begin the work, you must continue.

12. I will find her wherever she may be.

13. Now that you've come, you'd better have dinner with us.

14. He was so excited that he couldn't fall asleep.

15. We must do everything as he tells us.

16. India is much bigger than Japan.

17. No matter when you come, you are warmly welcome.

18. As (So) long as you work hard, you can catch up with the other classmates.

二、用适当的连词填空：

1. Dr. Bethune (白求恩) came to China __________ he was fifty.

2. He began to work __________ he got there.

3. Let's begin our meeting __________everyone is here.

4. I like the English people, __________ I don't like their food.

5. __________ you go in China, you can see smiling faces.

6. He didn't come to the lecture, __________ he was very busy.

7. __________we had enough time, we walked to the cinema.

8. They will help you __________ you meet with difficulty.

9. _________ we came to the university, we have learnt quite a lot.

10.I didn't join them yesterday evening __________ I had to go to an important meeting.

11. We would try to get a car __________we could all travel together more easily.

12. She wouldn't forget her mother's birthday __________ she seldom wrote to her family.

13. We're doing everything we can to make things as easy for you ___________we can.

14. The meeting became so disorderly __________ the speaker had to shout the audience down.

15. He was angrier __________ ever before.

16. __________ you lock all the doors, he can still manage to get in.

17. The boy was so tired __________ he fell asleep on the bus.

18. Hard _________ he tried, he couldn’t force the door open.

三、选择填空：

1. I’ll let you know ____ he comes back.

A. before

B. because

C. as soon as

D. although

2. She will sing a song ____ she is asked.

A. if

B. unless

C. for

D. since

3. We will work ____ we are needed.

A. whenever

B. because

C. since

D. wherever

4. Read it aloud _____ the class can hear you.

A. so that

B. if

C. when

D. although

5._____ you go, don't forget your people.

A. Whenever

B. However

C. Wherever

D. Whichever

6. It is about ten years _____ I met you last.

A. since

B. for

C. when

D. as

7. They will never succeed, _____ hard they try.

A. because

B. however

C. when

D. since

8. _____ still half drunk, he made his way home.

A. When

B. Because

C. Though

D. As

9. _____ she was very tired, she went on working.

A. As

B. Although

C. Even

D. In spite of

10. Busy _____ he was, he tried his best to help you.

A. as

B. when

C. since

D. for

11. I learned a little Russian _____ I was at middle school.

A. though

B. although

C. as if

D. when

12. _____ we got to the station, the train had left already.

A. If

B. Unless

C. Since

D. When

13. _____ the rain stops, we' 11 set off for the station.

A. Before

B. Unless

C. As soon as

D. Though

14. She was _____ tired _____ she could not move an inch.

A. so, that

B. such, that

C. very, that

D. so, as

15. We didn’t go home _____ we finished the work.

A. since

B. until

C. because

D. though

16. I'll stay here _____ everyone else comes back.

A. even if

B. as though

C. because

D. until

17. Although it's raining, _____ are still working in the field.

A. they

B. but they

C. and they

D. so they

18. Speak to him slowly _____ he may understand you better.

A. since

B. so that

C. for

D. because

19. You'll miss the train ______ you hurry up.

A. unless

B. as

C. if

D. until

20. When you read the book, you' d better make a mark _____ you have any questions.

A. at which

B. at where

C. the place

D. where

21. We'd better hurry ______ it is getting dark.

A. and

B. but

C. as

D. unless

22. I didn' t manage to do it _____ you had explained how.

A. until

B. unless

C. when

D. before

23._____ he comes, we won't be able to go.

A. Without

B. Unless

C. Except

D. Even

24. I hurried _____ I wouldn't be late for class.

A. since

B. so that

C. as if

D. unless

25. _____ I catch a cold, I have pain in my back.

A. Every time

B. Though

C. Even

D. Where

26. What's the matter _____ they still haven't answered the telegram?

A. when

B. that

C. though

D. however

27. Bring it nearer _____ I may see it better.

A. although

B. even though

C. so that

D. since

28. You may arrive in Beijing early _____ you mind taking the night train.

A. that

B. though

C. unless

D. if

29. Helen listened carefully _____ she might discover exactly what she needed.

A. in that

B. in order that

C. in case

D. even though

30. More people will eat out in restaurants _____ they do today.

A. than

B. when

C. while

D. as

31._____ hard she tries, she can hardly avoid making mistakes in her homework.

A. Much

B. However

C. As

D. Although

32. Poor _____ it may be, there is no place like home, _____ you may go.

A. as; wherever

B. though; whenever

C. in spite of; when

D. that; wherever

33. The child was __ immediately after supper.

A. enough tired to go to bed

B. too tired to go to bed

C. so tired that he went to bed

D. very tired, he went to bed

34. The history of nursing __ the history of man.

A. as old as

B. is old than

C. that is as old as

D. is as old as

35. _____ born in Chicago, the author was famous for his stories about New York.

A. Since

B. Once

C. When

D. Although

36._____ we stood at the top of the building, the people below were hardly visible.

A. As

B. Although

C. Unless

D. In spite of

37. Scarcely was George Washington in his teens _____ his father died.

A. than

B. as

C. while

D. when

38. _____ David goes, he is welcome.

A. Whichever

B. However

C. Wherever

D. Whatever

39. The house stood _____ there had been a rock.

A. which

B. at which

C. when

D. where

40. Small _____ it is, the pen is a most useful tool.

A. because

B. so

C. if

D. as

41. After the new technique was introduced, the factory produced _____ tractors in 1988 as the year before.

A. as twice many

B. as many twice

C. twice as many

D. twice many as

42. The piano in the other shop will be _____, but _____.

A. cheaper; not as better

B. more cheap; not as better

C. cheaper; not as good

D. more cheap; not as good

43. John plays football _____, if not better than, David.

A. as well

B. as well as

C. so well

D. so well as

44. Although he is considered a great writer,

A. his works are not widely read

B. but his works are not widely read

C. however his works are not widely read

D. still his works are not widely read

45. ___ the day went on, the weather got worse.

A. With

B. Since

C. While

D. As

46.—What was the party like?

—Wonderful. It' s years _____ I enjoyed myself so much.

A. after

B. when

C. before

D. since

47. It was not _____ she took off her dark glasses _____ I realized she was a famous film star.

A. when; that

B. until; that

C. until; when

D. when; then

48. If we work with a strong will, we can overcome any difficulty, _____ great it is.

A. what

B. how

C. however

D. whatever

49. After the war, a new school building was put up _____ there had once been a theatre.

A. that

B. where

C. which

D. when

50._____, Mother will wait for him to have dinner together.

A. However late is he

B. However he is late

C. However is he late

D. However late he is

51. He will come to call on you the moment he ____ his painting.

A. will finish

B. finished

C. has finished

D. had finished

52. ____ difficult the task may be, we will try our best to complete it in time.

A. No matter

B. No wonder

C. Though

D. However

53. It was ____ that she couldn’t finish it by herself.

A. so difficult a work

B. such a difficult work

C. so difficult work

D. such difficult work

参考答案

语法复习六：状语从句

一、

1. Child as she is, she knows a lot of things. 让步

2. The more I can do for the class, the happier I’ll be.比较

3. He talks as if (as though) he knew all about it.方式

4. He is such a good teacher that the students love and respect him.结果

5.I shall go to the park unless it rains.条件

6. No sooner had I got home than it began to rain.时间

7. Where there is water, there is life.地点

8. He studied hard so that he could catch up with his classmates.目的

9. Since you are very busy, I won't trouble you.原因

10. Even if (though) I fail, I’ll never lose heart.让步

11. Once you begin the work, you must continue.时间

12. I will find her wherever she may be. 让步

13. Now that you've come, you'd better have dinner with us.原因

14. He was so excited that he couldn't fall asleep.结果

15. We must do everything as he tells us.方式

16. India is much bigger than Japan.比较

17. No matter when you come, you are warmly welcome.让步

18. As (So) long as you work hard, you can catch up with the other classmates.条件

二、1. when; 2. as soon as; 3. as; 4. though; 5. Whwerever; 6. because; 7. Since; 8. whenever; 9. Since;

10. because; 11. so that; 12. though; 13. as; 14. that; 15. than; 16. Even if; 17. that; 18. as

三、1~5 CADAC 6~10 ABCBA 11~15 DDCAB 16~20 DABAD 21~25 CABBA

26~30 BCCBD 31~35 BACDD 36~40 ADCDD 41~45 CCBAD 46~50 DBCBD

51~53 CDD

高中英语语法大全

（1）表语从句 1．定义：用作表语的从句叫做表语从句。 2．构成：关联词+简单句 3．引导表语从句的关联词的种类： (1) 从属连词that。如： The trouble is that I have lost his address. 麻烦是我把他的地址丢了。 (2) 从属连词whether, as, as if。如： He looked just as he had looked ten years before. 他看起来还与十年前一样。 The question is whether they will be able to help us. 问题是他们是否能帮我们。 注：从属连词if一般不用来引导表语从句，但as if却可引导表语从句，如： All this was over twenty years ago, but it's as if it was only yesterday. gh能跟表语从句的谓语动词一般为系动词be, seem, look等。如： It looked as if it was going to rain. 看起来天要下雨了。 连接副词 where, when, how, why。 如：The problem is who we can get to replace her. 问题是我们能找到谁去替换她呢。 The question is how he did it. 问题是他是如何做此事的。 That was what she did this morning on reaching the attic. 那就是她今晨上了阁楼干的。 解释： 1．连词because可引导表语从句。如： I think it is because you are doing too much. 我想这是因为你做得太多。 2．在一些表示“建议、劝说、命令”的名词后面的表语从句中，谓语动词用虚拟语气。should+动词原形表示，should可省略。如： My suggestion is that we (should) start early tomorrow. 我的建议是我们明天一早就出发。（2）主语从句 1．定义：用作主语的从句叫做主语从句。 2．构成：关联词+简单句 3．引导主语从句的关联词有三类： (1) 从属连词that。如：That they were in truth sisters was clear from the facial resemblance between them. 很明显，她们确是亲姐妹，她们的脸型很相似。 (2) 从属连词whether。如： Whether he’ll come here isn’t clear. 他是否会来这里还不清楚。 (3) 连接代词who, whom, whose, what, which, whoever, whatever, whichever 连接副词 where, when, how, why。如： What she did is not yet known. 她干了什么尚不清楚。 How this happened is not clear to anyone. 这事怎样发生的，谁也不清楚。 Whoever comes is welcome. 不论谁来都欢迎。 Wherever you are is my home ---- my only home. 你所在的任何地方就是我的家----我唯一的家。 解释： 1．主语从句能用it作形式上的主语。常以it作形式主语的句型有： A. It+be+形容词(obvious, true, natural, surprising, good, wonderful, funny, possible, likely, certain, probable, etc.)+that从句。如： It is certain that she will do well in her exam. 毫无疑问她考试成绩会很好。 It is probable that he told her everything. 很可能他把一切都告诉她了。 B. It+be+名词词组(no wonder, an honour, a good thing, a pity, no surprise, etc.)+that

高中英语语法大全归纳总结-高中语法归纳总结

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高考英语语法—— 状语从句习题及讲解

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高中英语语法状语从句归纳总结

状语从句一． 二．分类：

adv.+that （如此……以致） so that （结果……） such+n.+that （如果……以致） that （所以，因此） 让步状语从句： though/although 不可同but 连用。 though/although （虽然） however （可是） even though/if （即使） no matter+what/which/where/who/when =whatever/whichever/wherever/whoever/whenever （不论什么/哪一个/哪里/谁/何时） 比较状语从句： as （正如） as…as （和……一样） not as/so … as （不如……） than （比……更） the+比较级…+the+比较级 （越……越……） 条件状语从句： if （假设） unless （如果不） so long as （只要） on condition that （如果） 方式状语从句： as （像……那样地） just as （正像） as if （好像） as though （好像） 三． 四． 各种状语从句的简化方法：

1． 2．以after和before引导的状语从句的主语若与主句主语一致时，从句等于after/before+doing sth. 作状语。 例：After she sang，she left the rich man's house．= After singing，she left the rich man's house．3． 4．以as soon as引导的状语从句的主语若与主句主语一致时，从句等于on+doing sth.,作状语，此时的动词为非延续性动词。 例：Mary began to operate on the wounded soldiers as soon as he arrived at the village． = Mary began to operate on the wounded soldiers on arriving at the village． 5． 6．时间状语从句和条件状语从句的主语和主句主语一致时，有时可简化为不定式作状语。 例：She stopped when she saw her husband．= She stopped to see her husband． If you want to understand the farmers，you must go to the countryside． = To understand the farmers，you must go to the countryside． 7． 8．结果状语从句和目的状语从句的主语与主句主语一致时，可以简化为不定式作状语；若两者主语不一致时，则应简化为不定式的复合结构作状语。 例：He was so tired that he couldn't go any further．= He was too tired to go any further． I came here so that I could ask some questions．= I came here(in order) to ask some questions．9． 10．以when，while引导的时间状语从句和以if引导的条件状语从句的主语若与主句主语一致时，从句等于when/while/if +doing sth.作状语，表示谓语动作发生在该状语动作的进行过程之中。例：When he turned on the radio，he found it broken．= When turning on the radio，he found it broken．While she was walking along the street，she was hit by a car．= While walking along the street，she was hit by a car． 11．原因状语从句的主语与主句主语一致时，可简化为分词短语作状语。 例：Since l didn't know Chinese，I tried to speak to her in English．= Not knowing Chinese，I tried to speak to her in English． 注意：形容词短语也可作表示原因的状语，来代替原因状语从句，放在句首、句末均可，但一般应加逗号。 例：As he was thirsty and eager to get a little rest，he went into the tea-house． = Thirsty and eager to get a little rest，he went into the tea-house． 12．在时间、原因、条件等状语从句中，若从句和主句主语不一致时，可简化为分词复合结构作状语。有时也可简化为“with/without名词或代词十分词(短语)”形式作状语。 例：When the film start appeared, the children got exited．= The film start appearing，the children got exited． If all the work is done, you can have a rest．= With all the work done，you can have a rest． Nothing can live if there is no air．= Nothing can live without air．

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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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状语从句 一．分类： such+n.+that（如果……以致）that（所以，因此）

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(完整版)高中英语语法专项训练.--状语从句

高中英语语法专项训练----状语从句 1.Don’t be afraid of asking for help _______ it is needed. A. unless B. since C. although D. when 2. A good storyteller must be able to hold his listeners’ curiosity ________ he reaches the end of the story. A. when B. unless C. after D. until 3. _______ I know the money is safe, I shall not worry about it. A. Even though B. Unless C. As long as D. while 4 You will succeed in the end ____ you give up halfway. A. even if B. as though C. as long as D. unless 5.“Was his father very strict with him when he was at school?” “Yes. He had never praised him _______ he became one of the top students in his grade.” A. after B. unless C. until D. when 6. _____ I suggest, he always disagrees. A. However B. Whatever C. Whichever D. Whoever 7. You should put on the notices ______ all the people may see them. A. where B. in which C. at D. for them 8. _____ she goes, there are crowds of people waiting to see her. A. Wherever B. However C. Whichever D. Whoever 9. Mary clapped her hand over her mouth _______ she realized what she had said. A. while B. as soon as C. suddenly D. then 10.________ her faults, she’s Arnold’s mother. Don’t be so rude to her.

高中英语语法大全(新版)

英语语法大全 第一部分：词类、句子成分和构词法： 1、词类：英语词类分十种： 名词、形容词、代词、数词、冠词、动词、副词、介词、连词、感叹词。 1、名词(n.)：表示人、事物、地点或抽象概念的名称。如：boy, morning, bag, ball, class, orange. 2、代词(pron.)：主要用来代替名词。如：who, she, you, it . 3、形容词(adj..)：表示人或事物的性质或特征。如：good, right, white, orange . 4、数词(num.)：表示数目或事物的顺序。如：one, two, three, first, second, third, fourth. 5、动词(v.)：表示动作或状态。如：am, is, are, have, see . 6、副词(adv.)：修饰动词、形容词或其他副词,说明时间、地点、程度等。如：now, very, here, often, quietly, slowly. 7、冠词(art..)：用在名词前,帮助说明名词。如：a, an, the. 8、介词(prep.)：表示它后面的名词或代词与其他句子成分的关系。如in, on, from, above, behind. 9、连词(conj.)：用来连接词、短语或句子。如and, but, before . 10、感叹词(interj..)表示喜、怒、哀、乐等感情。如：oh, well, hi, hello. 2、句子成分：英语句子成分分为七种：主语、谓语、宾语、定语、状语、表语、宾语补足语。 1、主语是句子所要说的人或事物,回答是“谁”或者“什么”。通常用名词或代词担任。 如：I‘m Miss Green.(我是格林小姐) 2、谓语动词说明主语的动作或状态,回答“做(什么)”。主要由动词担任。如：Jack cleans the room every day. (杰克每天打扫房间) 3、表语在系动词之后,说明主语的身份或特征,回答是“什么”或者“怎么样”。通常由名 词、代词或形容词担任。如：My name is Ping ping .(我的名字叫萍萍) 4、宾语表示及物动词的对象或结果,回答做的是“什么”。通常由名词或代词担任。如： He can spell the word.(他能拼这个词) 有些及物动词带有两个宾语,一个指物,一个指人。指物的叫直接宾语,指人的叫间接 宾语。间接宾语一般放在直接宾语的前面。如：He wrote me a letter . (他给我写了 一封信) 有时可把介词to或for加在间接宾语前构成短语,放在直接宾语后面,来强调间接宾 语。如：He wrote a letter to me . (他给我写了一封信) 5、定语修饰名词或代词,通常由形容词、代词、数词等担任。如： Shanghai is a big city .(上海是个大城市) 6、状语用来修饰动词、形容词、副词,通常由副词担任。如：He works hard .(他工作努力) 7、宾语补足语用来说明宾语怎么样或干什么,通常由形容词或动词充当。如：They usually keep their classroom clean.(他们通常让教室保持清洁)/ He often helps me do my lessons.(他常常帮我做功课)/ The teacher wanted me to learn French all by myself.(老师要我自学法语) ☆同位语通常紧跟在名词、代词后面,进一步说明它的情况。如：Where is your classmate Tom ?(你的同学汤姆在哪里？) 3、构词法：英语构词法主要有：合成法、派生法和转换法。 1、合成法：如：spaceship, headache, basketball, playground等等。 2、派生法： (1)派生名词：①动词+er/or②动词+ing③动词+(t)ion④形容词+ness⑤其他,如： inventor, learner, swimming, congratulation, kindness, carelessness, knowledge (2)派生形容词：①名词+y②名词+ful③动词+ing/ed④friendly⑤dangerous⑥ Chinese; Japanese⑦English⑧French⑨German⑩国名+(i)an如：snowy, sunny, hopeful, beautiful, interesting, follwing, daily(每日的),nervous, delicious (3)派生副词：①形容词+ly ②其它,如：slowly, angrily, full→fully, good→well, possible

高考英语语法专项 状语从句

高考英语语法专项状语从句 一.定义: 在句中作状语的从句就叫做状语从句 二.考点透析 【考点1】时间状语从句: 由when, while, as, before, after, since, till / until, as soon as等引导 eg. I shall tell him the good news when he comes. 【考点2】原因状语从句: 由because, as, since, for等引导 eg.. He didn’t hear me because he was listening to the radio. ， eg. Since you are free today, you had better show me how to use the computer. 【考点3】地点状语从句: 由where等引导 eg. Please put the book where it was after you finish reading it. 【考点4】条件状语从句: 由if, unless等引导 eg.I will come to see you if I have time on Sunday. 【考点5】比较或方式状语从句: 由than, as, as if, as...as...等引导 eg.. I know you do better than he does. eg.. The old worker runs very fast as if he were a young man. 【考点6】.目的状语从句: 由so that, in order that等引导 eg.. They set out early so that they could arrive at the station in good time. 【考点7】结果状语从句: 由so, so that, so / such...that...等引导 eg.. They set out early so that they arrived at the station in good time. eg.. He finished his work so well that the boss praised him in public. 【考点8】让步状语从句: 由though / although, even if, whatever, whoever, whenever, no matter what / who等引导 eg.. He is in very good health though he is old. eg.. They didn’t stop working even if it began to rain hard. 三.应注意的问题: 1.时间和条件状语从句中常用一般时代替将来时 a. I will go and see a film if I have time tomorrow. b. I will tell the about it as soon as he comes back. c. He said he would go out for a walk when he finished his work. 2.状语从句中可有省略: 在一个含有状语从句的复合句中, 如果主句和状语从句的主语相同, 或状语从句的主语是it, 并且状语从句的谓语含有be动词时, 可以将状语从句的主语和b e一起省略掉 a. As (she was ) a child, she began to learn English. b. If ( he was ) alive, he must be at least ninety years old. c. Although ( he was ) told to stop, he kept on working. d. If ( it is) necessary, ring me up. e. He didn’t say a single word until ( he was ) asked. 3.as和than引导的比较状语从句中, 从句中和主句中相同的部分往往省略, 从句中只剩下比较对象 a. He is a head taller than I ( am tall ). than之后的人称代词是主格或宾格时, 有时意思不同, 如: a. She likes the dog more than me.=She likes the dog more than she likes me.她喜欢狗比喜欢我更多 b. She likes the dog more than I.=She likes the dog more than I like the god. 她比我更喜欢狗 4.含有no sooner…than…和hardly / barely / scarcely …when…的句子相当于含有as soon as…引导的时间状语的句子. no sooner或hardly放在句首时, 主谓要部分倒装 a. He had no sooner seen the policeman than he ran away. =No sooner had he seen the policeman than he ran away. =He ran away as soon as he saw the policemen. b. He had hardly sat down when the telephone rang. =Hardly had he sat down when the telephone rang. =The telephone rang as soon as he sat down.