状语从句讲解及练习题50题-有答案.doc

状语从句
1. 在主从复合句中修饰主句中的动词，形容词，副词等的从句叫状语从句。可分为，时间状语从句，地点状语从句，原因，目的，结果，条件，让步，比较和方式状语从句。
2. 时间状语从句
起时间状语作用的句子；
可放在句首，句中和句尾
常用引导词：when，while, as, after, before, since, till, until, the moment, hardly … when , no sooner … than
l when, while, as 的用法
1) when 用法最广，常可代替while和as, 在while 引导的从句中，动词只能是延续性的
When the fire broke out, all the students were sleeping soundly.
The telephone rang while I was taking a bath.
2) 当两个表示时间延续的动作同时发生而又有对比意味的时候，用while，在这样的复合句中，主句从句的时态通常是相同的。
Father was preparing a report while I was playing PC games.
3) 常用as 的情况：一边…一边；表示随着短暂动作的发生，另一行为伴随发生
As he talked on, he got more and more excited.
l until和till 的用法
表示“一直到…”时，主句和从句都用肯定式；
I will wait until/ till the concert is over.
表示“直到…才…”是，主句用否定，从句用肯定式。
They can’t go until Sunday.
l since的用法
since引导的从句中，如果是持续性动词，往往理解为某一状态的终止。
He has written to me frequently since he was ill. 自从他病好以来，他常写信给我。
l 主将从现。时间状语从句一般不用将来时。因此如果主句是将来时，时间状语从句一般要用现在时。
We’ll start when the team leader comes.
l 一…就… 的几种常用的表示方法
1） as soon as
As soon as he heard the news, he jumped with joy.
2） Immediately
I’ll give you an answer immediately I’ve finished reading your file.
3） Directly
Directly you feel any pains, you must go to the doctor.
4） Instantly
Please give me a phone call instantly you arrive.
5） no sooner than
No sooner had I begun to talk than he rang offl
I had no sooner begun to talk than then he rang off.
6） hardly…when
Hardly had I told him my name when he stopped listening.
I had hardly told him my name when he stopped listening.
3. 地点状语从句
引导词 where, wherever, anywhere, everywhere, nowhere
一般情况下，只要在where前面加上 to/in/from the place，就可以变为定语从句
We live where the road crosses the river.
We live in a place where the road crosses the river.
4. 原因状语从句
引导词：单词—because，as, since 短语—now that, for the reason that, in that, seeing that
l Because, as, since, for
1） because 的语气最强，用以回答why 引起的提问，可表示已知或未知的世事。可与only ,merely, just ,not 连用，所引导的从句常用于主句之后，在表示强调的时候可置于主句之前（可用于强调结构）
He was punished only because he broke the law.
It was because that I went to town yesterday.
2） as 的语气最弱,不可用于强调，常至于主句之前。
As he was in a hurry, he left this bag home.
3） since的语气也比较弱,常表示对方已知的事实，往往相当于汉语的既然。不用于强调。常置于主句之前。
Since she can’t answer this question, it is better to ask someone else.
4） for连接并列句
We should be more careful, for it is already dark.
l now that
用于口语，表示较弱的原因，主从句因果关系不明显。既然，that可省略。
Now（that）you are grown up, you should not rely on your parents.
l for the reason that
后跟一个同位语从句。
l that
be happy that, be glad that, be surprised that 有时也被认为是原因状语从句
l in that
This experience is worth trusting in that it is based on scientific facts.
l when（既然）
I can’t tell you anything when you won’t listen.
How can he succeed when he won’t work?
5. 目的状语从句
l in order that /so that
I hurried through my work in order that I could be in time for wonderful TV programs.
l for fear that
I’m working hard for fear that I should fail.
l in case
I stayed all day at home in case you called.
6. 结果状语从句
l so that
so + 副词、形容词+that
The text was so boring that I fell asleep.
so+ many/few/much/little+that
He has got so little money that his family had to live on welfare.
so +动词+that
It so happened that he didn’t receive my invitation.
l such that
such + a + 形容词+可数名词单数、复数+that
They are such good children that we all love them.
such+形容词+不可数名词+that
This was such fine music that it was worth listening to twice.
l That本身也可以引导结果状语从句
What have we done that you should be so angry with us?
7. 条件状语从句
引导词：if, unless, as/so long as, once, in case, on condition that, supposing (that), providing (that), provided (that), given (that) 写作的时候，学会在文章里添加几个状语从句。
Providing/Supposing/Given/Provided that you promise not to tell anyone else, I’ll explain the secret.
In case it rains, do not expect me. 如果下雨，就不要等我了。
l 真实条件句与非真实条件句
Unless you go at once, you will be late.
If we had enough time yesterday, we could have done the work.
8. 让步状语从句
l Though和 although 基本相同，但是though可以当副词，although不可以
Young though she is, she has travelled to many countries to put on shows.
I’ve bit of headache. It’s nothing much, though.
l Even though 和even if
Even if/ though you say so, I do not believe.
l As
Pop star as she is, she still needs to improve.
l whether (…) or not 和whether … or …
l wh-ever类的用法
引导名词性从句，只能用wh-ever，不能用no matter wh-
I’ ll wait for you however late it is. = I’ll wait for you no matter how late it is.
9. 比较状语从句
As…as not as/ so … as , than , the +比较级， the+ 比较级
His handwriting is not as good as yours (is).
10. 方式状语从句
l As 正如，像
Will you please do the experiment as I am doing.
l as if 和as though
(1) 如果表述内容可能性很大，则用陈述语气 look/seem/taste /smell 等词连用
It looks as if it is going to rain.
(2) 表述的不是事实，则用虚拟语气
The young man with long hair looks as if he were a girl.
答案：1—5 DADBA 6—10 DCAAD 11—15 BBAAD 16—20 BCBDA 21—25 BAABA 26-30 CDDDD 31—35 CBBAA 36-40 BBABC 41—42 BDCDC 46-50 CDDCD

1. —What was the party like?
—Wonderful. It’s years __________I enjoyed myself so much.
A. after B. before C. when D. since
2. Mother was worried because little Alice was ill, especially _______Father was away in France.
A. as B. that C. during D. if
3. Why do you want a new job __________you got such a good one already?
A. that B. where C. which D. when
4. After the war, a new school building was put up ___________there had once been a theatre.
A. that B. where C. which D. when
5. You will be late ______________you leave immediately.
A. unless B. until C. if D. or
6. ___________, 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
7. If we work with a strong will, we can overcome any difficulty, ______________great it is.
A. what B. how C. however D. whatever
8. We won’t give up ______________we should fail ten times.
A. even if B. since C. whether D. until
9. She doesn’t speak ____________her friend, but her written work is excellent.
A. as well as B. so often as C. so much as D. as good as
10. He’ll be happy ____________he may be.
A. when B. if C. because D. wherever
11. The new secretary is supposed to report to the manager as soon as she ______________.
A. will arrive B. arrives C. is arriving D. is going to arrive
12. The volleyball match will be put off if it _______________.
A. will rain B. rains C. rained D. is raining
13. Remember to send me a photo of your son next time you ____________to me.
A. write B. will write C. are writing D. would write
14. If city noises __________from increasing, people ___________shout to be heard even at the dinner table in 20 years from now.
A. are not kept; will have to B. are not kept; have to
C. do not deep; will have to D. do not deep; have to
15. I need one more stamp before my collection ____________.
A. has completed B. completes C. has been completed D. is completed
16. As she _________the newspaper, Granny _________asleep.
A. read, was falling B. was reading, fell
C. was reading, was falling D. read, fell
17. If it __________for the snow, we ___________the mountain yesterday.
A. were not; could have climbed B. were not; could climb
C. had not been; could have climbed D. had not been; could climb
18. —If he _________, he ___________tat food.
—Luckily he was sent to the hospital immediately.
A. was warned; would not take B. had been warned; would not have taken
C. would be warned; had not taken D. had driven; wouldn’t have got
19. It is 50 years _____________the People’s Republic of China was founded.
A. after B. before C. when D. since
20. ___________the sun rises, all the stars in the sky disappear.
A. The moment B. Before C. Till D. For
21. Not until I began to work __________how much time I had wasted.
A. didn’t I realize B. did I realize C.I didn’t realize D. I realized
22. Not until all the fish died in the river __________how serious the pollution was.
A. did the villagers realize B. the villagers realized
C. the villagers did realize D. didn’t the villagers realize
23. —Why do you drink so much coffee?
—Well, _________it doesn’t keep me awake in the nights, I see no harm in it.
A. although B. if C. unless D. while
24. It was __________it rained heavily that they didn’t come.
A. as B. because C. for D. since
25. Why not buy a cheaper one, _____________you don’t have enough money?
A. since B. because C. for D. though
26. It is ten years ____________I left home.
A. when B. after C. since D. as
27. He speaks English _____________he speaks his mother tongue.
A. so good as B. as good as C. so well as D. as well as
28. Try _______he might, he couldn’t get out of difficulty.
A. when B. where C. till D. as
29. __________I saw the computer, I showed great interest in it.
A. At first B. For the first time C. Until D. The first time
30. I don’t think you’ll be able to understand this formula(公式) ____________you finish school.
A. as if B. only when C. even D. even when
31. I often visited Tian’an Men Square ____________I was staying in Beijing.
A. until B. during C. while D. throughout
32. He always thinks I’m wrong, _____________I may say.
A. no matter whatever B. whatever C. what D. that
33. __________the rain has stopped, let’s continue to work.
A. For B. Now that C. That D. Because
34. ____________, I am sure that the boy is honest.
A. Whatever people say B. No matter people say
C. What people say D. It doesn’t matter people say
35. I knew Mr. Green _____________I knew Mrs. Green.
A. long before B. before long C. long ago D. after long
36. They waited __________it was dark before leaving, _________they didn’t want anyone to see them leave.
A. since; because B. until; as C. unless; for D. so; because
37. __________often you ring, no one will answer.
A. How B. However C. Whom D. Whenever
38. I will never stop ______________they might like it.
A. no matter how B. how C. what D. though
39. Father was ________busy in working __________he often forgot rest or meals.
A. very, that B. so, that C. such, as D. enough, as
40. We made a decision __________there would be rain, we should stay at home.
A. that B. if C. that if D. whether
41. I usually watch TV in the evening ____________I have to study for an examination.
A. because B. unless C. while D. the moment
42. I had lived there for over thirty years ___________I wanted to return to my motherland again.
A. until B. after C. while D. when
43. It was a long time _____________I went to sleep again.
A. when B. while C. before D. until
44. He must be ill, ____________he looks so pale.
A. since B. because C. as D. for
45. I’ll take no steps ___________you arrive.
A. and B. since C. until D. while
46. You will catch cold _____________put on more clothes.
A. if you B. if you will not C. unless you D. until you
47. ________he woke _________slept, this subject is always in his mind.
A. If; and B. Both; and C. Either; or D. Whether; or
48. We had hardly got to the station __________it began no rain.
A. until B. since C. while D. when
49. They were surprised that a child should work out the problem __________they themselves couldn’t.
A. once B. then C. while D. if
50. My name is Robert, ___________most of my friends call me Bob for short.
A. then B. instead C. however D. but
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