状语从句讲解
一、意义:在复合句中,分为主句和从句。状语从句由连词引导,做复合句的状语,分为时间状语从句、条件状语从句、目的状语从句、让步状语从句、原因状语从句、结果状语从句、方式状语从句、地点状语从句。
1.时间状语从句:
时间状语从句的连词包括:after, before, as, as soon as, since, when, while, till/ until, whenever等。
1) when当……时候
①when连接的两个动作可以是过去同时发生的。如:
When he came back, his brother was making a model plane
当他回来时,他哥哥正在做一个飞机模型。
When my mother was cooking, I left.
当我妈妈正在做饭时,我离开了。
②When 连接的两个动作也可以是过去一前一后发生的。先发生的动作用过去完成时态,后发生的动作用一般过去时态。如:
When he got to the railway station, the train had left.
当他到达火车站时,火车已经离开了。
③when 还可以连接两个还没有发生的动作。这时候,主句用一般将来时态或包含情态动词的句子或祈使句,从句用一般现在时态。如:
---Tell him about the news when he comes, John.
约翰,当他来时,告诉他关于这个消息。
--- Yes, I will.
好的,我会的。
2) while当……时候
while连接的两个动作可以是过去同时发生的。如:
My father was reading the newspaper while my mother was watching TV.
当我妈妈正在看电视时,我爸爸正在看报纸。
He came back while his brother was making a model plane.
当他哥哥正在做一个飞机模型时,他回来了。
3) as soon as 一……就……
①as soon as可以连接两个还没有发生的动作。这时候,主句用一般将来时态或包含情态动词的句子或祈使句,从句用一般现在时态。如:
I will write to you as soon as I get there.
我一到达那儿,我就给你写信。
②as soon as连接的两个动作可以是过去发生的。如:
I wrote to him as soon as I got there yesterday.
昨天我一到达那儿,我就给他写了信。
4) (not)…until…=(not)…before…直到…才…
①(not)…until…=(not)…before…可以连接两个还没有发生的动作。这时候,主句用一般将来时态或包含情态动词的句子或祈使句,从句用一般现在时态。如:
He won’t get up until/before his mother calls him.
直到他妈妈叫他,他才起床。
②(not)…until…=(not)…before…连接的两个动作可以是过去发生的。如:
He didn’t get up until/before his mother called him.
直到他妈妈叫他,他才起床。
5)before,after在……以前/以后
①可以连接两个还没有发生的动作。这时候,主句用一般将来时态或包含情态动词的句子或祈使句,从句用一般现在时态。如:
She won’t go home before she finishes her homework.
在她完成作业之前,她将不回家。
She will go home after she finishes her homework.
她完成作业之后将回家。
②连接的两个动作也可以是过去一前一后发生的。先发生的动作用过去完成时态,后发生的动作用一般过去时态。如:
The train had left before we got to the station.
我们到达火车站之前,火车已经离开了。
We got to the station after the train had left.
火车离开之后,我们到达了火车站。
6)no matter +特殊疑问词= whenever, whatever等。如:no matter what= whatever, no matter where = wherever, no matter when = whenever。如:
No matter when he comes, I will wait for him.
不管他什么时候来,我将会等他。
Whenever he comes, I will wait for him.
不管他什么时候来,我将会等他。
2、条件状语从句
1)if如果
可以连接两个还没有发生的动作。这时候,主句用一般将来时态或包含情态动词的句子或祈使句,从句用一般现在时态。如:
You will miss the train if you don’t hurry.
如果你不快点儿,你将会错过火车。
He said if you had any question, you could ask me.
他说,如果你有任何问题,可以问他。
2)unless = if… not除非……否则……,如果……不
可以连接两个还没有发生的动作。这时候,主句用一般将来时态或包含情态动词的句子或祈使句,从句用一般现在时态。如:
He won’t come unless his mother comes with him.
他将不来,除非他妈妈跟他一块儿来。
He said he wouldn’t come unless his mother came with him.
他说他将不来,除非他妈妈跟他一块儿来。
3、结果状语从句so…that…, such… that…如此……以至于……。如:
My mother works so hard that my father often cooks for me.
我妈妈工作如此的努力,以至于我爸爸经常为我做饭。
She is such a good girl that everyone likes her.
她是如此好的一个女孩儿,以至于每个人都喜欢她。
4、目的状语从句
目的状语从句中经常用may, might, can, could等情态动词。
1)so that以便于。如:
She works hard so that she can catch up with others.
她工作努力,以便于她能赶上别人。
2)in order that为了。如:
He worked day and night in order that he could succeed.
他日夜工作,为了能够成功。
5、原因状语从句
1)because因为
because 和so, 不能放在一个复合句子中。如:
Because I study hard, I have got good grades.
因为我学习努力,所以我取得了好成绩。
I study hard, so I have got good grades.
因为我学习努力,所以我取得了好成绩。
能引导原因状语从句的连词还有:since, as。
6、让步状语从句
though/ although/ even if/ even though虽然,不能和but放在一个句子中。如:
Even though she is twenty- seven, she is still like a little child.
虽然他现在27岁了,但是他仍然像个小孩子。
she is twenty- seven, but she is still like a little child.
虽然他现在27岁了,但是他仍然像个小孩子。
7、方式状语从句
as if, as though好像。如:
I remember it as if/ as though it were yesterday.
我记得这件事仿佛是昨天发生的。
中考真题
1. He will send us a message as soon as he __ in Sichuan.
A. is arriving
B. will arrive
C. arrived
D. arrives
2. There __ serious air pollution if people use more and more cars.
A. will have
B. has
C. will be
3. ---Won’t you go to the dinner tonight
---I will if I __.
A. will be invited
B. have invited
C. am inviting
D. am invited
4. ---When __ again
---When he __, I will let you know.
A. he comes, will come
B. will he come, will come
C. will he come, comes
5. We should keep the habit of taking notes when the teacher __ .
A. will talk
B. would talk
C. is talking
D. talks
6.Tim will call me as soon as he my package.
A. receive
B. will receive
C. received
D. receives
7.If my father ____ back, please let me know.
A. comes
B. will come
C. come
8. The children ____ a P.E. lesson on the playground when it suddenly began to rain.
A. have
B. are having
C. had
D. were having
9. Mrs Black doesn’t know if her American friend ___ to Heilongjiang. If he ___ here, she will meet him at the airport.
A. will come, comes
B. will come, will come
C. comes, will come
10. My mother ___when I got home.
A. cook
B. cooks
C. cooked
D. was cooking
11. —You were out when I dropped by your house.
— Oh, I___ for a friend from England at the airport.
A. was waiting
B. had waited
C. am waiting
D. have waited
12. Father doesn’t tell me when he ___. I’ll call you as soon as he ___.
A. will come; comes
B. will come; will come
C. comes; will come
D. comes; comes
13.—Let’s go fishing if it ____ this weekend.
—But nobody knows if it will rain.
A. was fine
B. is fine
C. will be fine
14. --- If it _____ tomorrow, I’ll go fishing with my grandfather.
--- That sounds good.
A. rain
B. hasn’t rained
C. is fine
15. Few students can understand the sentence until it ____ twice or three times.
A. explains
B. is explained
C. will be explained
D. has explained
16. We are not sure if it ____ tomorrow. If it _____, our sports meeting will be put off.
A. will rain; rains
B. rains; will rain
C. will rain; will rain
17. We’ll go for a picnic if it ___ this Sunday.
A. won’t rain
B. isn’t raining
C. doesn’t rain
D. don’t rain
18. If you ___ with us, you will be happy.
A. go
B. will go
C. shall go
19. I am not sure if Tom ____ home. If he ___, I’ll call you.
A. will come, will come
B. comes, will come
C. will come, comes
20. I’m waiting for my friend. ______, I’ll go shopping alone.
A. If she comes
B. If she will come
C. If she doesn’t come
D. If she didn’t come
21. Tom will call me as soon as he ____ home.
A. gets
B. has got
C. got
D. will get
22. It ___ heavily when I left the cinema.
A. rains
B. will rain
C. is raining
D. was raining
23. If you ____ to the Expo next month, I will go with you.
A. go
B. has gone
C. will go
D. are going
24.---What are you going to do this afternoon
--- We are going to have a football match if it ___.
A. will rain
B. rained
C. doesn’t rain
25. Louis ___ computer games when her brother phoned her.
A. plays
B. is playing
C. has played
D. was playing
26.The Greens will visit Hainan as soon as they ____ to China.
A. comes
B. come
C. came
D. will come
27. ---Could you tell me when Mr. Li ___ in Huanggang
--- Sure. When he ___, I’ll call you.
A. arrives, will arrive
B. will arrive, arrives
C. arrives, arrives
D. will arrive, will arrive
28. ---Will you go to the concert after school ---If Jenny ___ to the concert, I’ll go, too.
A. go
B. goes
C. to go
D. will go
29. ---Tommy, do you know if Frank ___ to the theatre with us this Sunday if it ___
---Sorry, I have no idea.
A. will go, is fine
B. goes, is fine
C. will go, is going to be fine
D. goes, will be fine
30.The plane ____ when we got to the airport.
A. had taken off
B. was taken off
C. will take off
D. is taking off
31. Tom ___ Happy Boys when his father came back from work.
A. is watching
B. was watching
C. are watching
D. were watching
真题答案
1-5 DCDCD
6-10 DADAD
11-15 AABCB
16-20 ACACC
21-25 ADACD
26-30 BBBAA
31 D