状语从句讲解、练习
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，分别表示时间、地点、原因、目的、结果、条件、让步、比较和方式。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, before, after, since , till, until
特殊引导词：the minute, the moment, the second, every time, the day， the instant, immediately , directly, no sooner …than, hardly …when, I didn’t realize how special my mother was until I became an adult.
While John was watching TV, his wife was cooking.
The children ran away from the orchard(果园) the moment they saw the guard. No sooner had I arrived home than it began to rain.
Every time I listen to your advice, I get into trouble.
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.
Wherever you go, you should work hard.
3． 原因状语从句
常用引导词：because, since, as, for
特殊引导词：seeing that, now that, in that, considering that, given that, My friends dislike me because I’m handsome and successful.
Now that everybody has come, let’s begin our conference.
The higher income tax is harmful in that it may discourage people from trying to earn more.
Considering that he is no more than 12 years old, his height of 1.80 m is quite remarkable.
常用引导词：so that, in order that
特殊引导词： in case, for fear that，in the hope that, for the purpose that, to the end that
The boss asked the secretary to hurry up with the letters so that he could sign them.
The teacher raised his voice on purpose that the students in the back could hear more clearly.
5． 结果状语从句
常用引导词：so … that, such … that,
特殊引导词：such that, to the degree that, to the extent that, to such a degree that,
He got up so early that he caught the first bus.
It’s such a good chance that we must not miss it.
To such an degree was he excited that he couldn’t sleep last night.
6． 条件状语从句
常用引导词：if, unless,
特殊引导词：as/so long as, only if, providing/provided that, suppose that, in case that, on condition that
We’ll start our project if the president agrees.
You will certainly succeed so long as you keep on trying.
Provided that there is no opposition, we shall hold the meeting here.
7． 让步状语从句
常用引导词：though, although, even if, even though
特殊引导词： as(用在让步状语从句中必须要倒装)，while ( 一般用在句首 )， no matter …， in spite of the fact that, while, whatever, whoever, wherever, whenever, however, whichever
Much as I respect him, I can’t agree to his proposal.
尽管我很尊敬他， 我却不同意他的建议。
The old man always enjoys swimming even though the weather is rough. No matter how hard he tried, she could not change her mind.
He won’t listen whatever you may say.
常用引导词：as(同级比较), than(不同程度的比较)
特殊引导词：the more … the more … ; just as …， so…; A is to B what /as X is to Y; no … more than;
She is as bad-tempered as her mother.
The house is three times as big as ours.
The more you exercise, the healthier you will be.
Food is to men what oil is to machine. 食物之于人，犹如油之于机器。
9． 方式状语从句
常用引导词：as, as if, how
特殊引导词：the way
When in Rome, do as the Roman do.
She behaved as if she were the boss.
Sometimes we teach our children the way as our parents have taught us.
状语从句练习题
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
Keys：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