主将从现
常见的主将从现的词有as soon as,when,while ,as,until等
一、单项选择
( ) 1. If you want to learn English well, you must use it as ___ as possible.
A. often
B. long
C. many
D. soon ( ) 2. ---What will Bill do if he ____in the test?
---He will try again.
A. fail
B. fails
C. will fail
D. is failing ( ) 3. Please tell her the news when she_____. OK, I will.
A. comes
B. will come.
C. come
D. would come ( ) 4. The students will plant trees if it ___ tomorrow.
A. didn’t rain
B. hasn’t rained
C. won’t rain
D. doesn’t rain ( ) 5. We__ home if there is no bus. ---Oh, what a pity!
A. will walk
B. have walked
C. walked
D. walk ( ) 6 . If it _____ tomorrow, I’ll go by car.
A. rain
B. will rain
C. rains
D. would rain ( ) 7. If Mary _______ next Sunday, we will go boating together.
A. will come
B. comes
C. shall come
D. should come ( ) 8. --- Don’t forget to ask him to write to me.
--- I won’t. As soon as he _______, I’ll ask him to write to you.
A. will come
B. came
C. comes
D. is coming ( ) 9. --- _____ the young girl _____ the old man clean his room every day?
--- Yes, she does.
A. Does; help
B. Has; helped
C. Did; help
D. Do; helps ( ) 10. --- What does Linda often do in the evening?
--- She often _______ her homework, but on the evening of March 12 she _______ TV.
A. does; watches
B. is doing; watched
C. does; watched
D. is doing; was watching
二、用动词的正确形式填空
1. If I come, I _______________ ( see ) you.
2. If it is fine, we________________( go ) for a walk.
3. If it rained, they ______________ ( stay ) at home.
4. You will spoil it if you ______________ ( not be ) careful.
5. We would be very much pleased if you _______________( come ).
6. Will you help me if I _______________ ( need ) you.
7. They will get wet if it __________________ ( rain ).
8. What a pity I haven’t got my car. If I had, I __________________( take ) you to the airport.
9. We would answer if we __________________( can ).
10. If you eat too much, you __________________( get ) ill.
三、请根据给的线索将下列句子补充完整。

A．eg. If I were poor, I would do my shopping in cheaper stores.
1. If I were trapped in a lift,____________________________.
2. If someone was following me down a dark street, ______________________.
B. eg. If I won one million dollar s in the lottery , I’d put it in the bank and watch it grow.
1.______________________________, I’d leave my home city.
2.______________________________ , I might not speak to you again.
四、请根据上下文完成对话。

1. A: What time will Kate be home?
B: If I __________(know) I ________________(tell) you. But unfortunately, she didn’t say a word with me because we argued yesterday.
A: Well, if she ____________(get) home before 10:00, please ask her to call me.
2. A: I’m so stressed out.
B: It’s none of my business, but if I ______________( be )you, I _____________( take ) some time off.
3. A: I’m afraid your flight has been delayed due to bad weather.
B: Oh no! When will it take off?
A: We don’t have any idea yet. If it_________ ( stop ) snowing this evening, then your flight _____________ (depart) some time tonight.
A: What are the chances that will happen?
B: It’s too early to tell. I ____________( let ) you know if I __________( hear ) any news.。