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发布时间:2013-11-22 14:39:00  


注意 :

学习" if " 引导的条件状语从句的用法,现在总结一下:

if 条件句不一般,几个要点记心间; 条件句,放在前,逗号要放句中间。 条件句表可能,主句多用将来时; 条件句表事实,主句常用现在时。 在 if 引导的条件状语从句中,如果从句谈论的是一个有可能发生的事实及其产生的相关的结果,主句用一般将来时态,从句用一般现在时态。如:

We can walk there if we can't find a bus .

If it rains tomorrow ,we will not go to the zoo.

What will you do if you find a panda in danger.

如果 if 条件句谈论的是重复发生和预示要发生的情景和事件,则主从句大多用一般现在时态。如:

If bears are in danger ,they attack people.

在 if 引导的条件状语从句中,if 和条件句位置灵活,可直接放在主句后面,若 if 条件句放句首, 从句后面要加逗号,和主句隔开。还要注意前后时态一致原则


if 条件状语从句的时态练习 一.在正确的答案下划一条线。

1.Daina ( will go/go/goes) to Europe if she (will pass/pass/passes) the exams .

2. The graduates (will teach/teach/teaches) in the poor village if the Ministry of Education (will agree/ agree/agrees) soon.

3. If there (will be/ are/is) a car accident, they (will call/call/calls) 110 for help at once.

4. If it (won’t/don’t/doesn’t/ isn’t) rainy, we (will take/ take/takes) walk outside.

5. If a UFO (will land/land/lands) in front of

me, I (will go/go/goes) in to look for the alien. 6. If he (will have/have/has) money, he (will bulid/build/builds) a science lab.

7.Don’t wait for me if I (am/ will be) late.

8.They (won’t/don’t) go to the beach if it (will rain/rain /rains).

9. I (will call/ call) you if he (will stay/stay /stays) at home.

10. Mr Smith (will let/ let/lets) you know if he (will need/ need/ needs) help. 二、用所给词的适当形式填空

1.If you ________(feel) tired, you _______________ (have) to have a rest.

2. Where _______ he _________(see) the film if he ________________(have) time?

3. If there __________(be) fewer trees, there _______________( be) more pollution.(污染) 4. He _____________(dress) more casually if he ________________( not work) on weekends.

5. If Marcia _____________(live) alone, she ___________________( keep) a pet parrot. 6. We can walk there if there _______(be) no bus.

7. Don’t speak to him if he ________(appear)

8. 如果努力学习,你就会取得好成绩。 If you__________ _________, you ___________ good _____________.

9. 他如果看电视太久了,他的父母会不高兴。

If he _________ TV too much, his parents __________ __________ unhappy.

10. 如果明天不下雨,我会和你一起去公园的。

If it __________ __________ tomorrow, I ______________ go to the park _________ you.

. 三 .单项选择(从句综合训练)

1.If you _____ to the party, you’ll have a great time.

A. will go B. went C. go D. going

2. It will be a long time ____ Peter _____ his work.

A. since, has finished B. after, finishes

C. when, will finish D. before, finishes.

3. What will father _____ us from Japan?

A. take B. bring C. carry D. make

4. Weifang is famous ______ kites.

A. for B. to C. on D. with

5. I ____ her the answer if she ____me.

A. can tell, will ask B. will tell, will ask

C. would tell, ask D. will tell, asks

6. – What are you going to do tomorrow? --We’ll go to the library tomorrow if it ___.

A. isn’t rain B. rain

C. won’t rain D. doesn’t rain

7.—Do you know when he will come back tomorrow?

--Sorry, I don’t know. When he ____ back, I’ll tell you.

A. comes B. will come

C. come D. may come

8. What will you do if you _____ to the old folk’s home visit?

A. go B. went C.going D. will go

9. If I eat ____ food, I’ll be very fat.

A. too many B. many too

C. too much D. much too

10. I’ll give the book to him if he ___ here next Sunday.

A. will come B. comes

C. is coming D. came

11. There ____an English film in our school tomorrow.

A. is going to have B. will have

C. is going to be D. has

12. Could you tell us where ____?

A. will the next Olympic Games held

B. the next Olympic Games will be held

C. would the next Olympic Games be held

D. the next Olympic Games would be held

13. When my mother returned last night, I ____ a book.

A. read B. am reading

C. was reading D. am going to read

14.What ____ you ____ when it began to rain?

A. do, do B. were, doing

C. are, doing D. did, do

15. I’ll wake you up when he ____back. A. will B. is going to come C. comes D. come

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