祈使句（表条件）+ and +主句（表结果）
（1）、祈使句（表条件）+ or else/or/otherwise + 主句（表结果）…… “否则……，要不然……”
（2）、祈使句（表条件）+ and +主句（表结果）
[例句]
Hurry up, or you’ll be late for class.
Please call me up before you come, otherwise/or else/or we might be out.
你来之前打个电话，否则，我们也许会出去。
Think it over and you will find the answer.
Give him an inch and he will take a mile. 得寸进尺。
Work hard and you will make progress every day. 好好学习，天天向上。
[高考题回放]
1. Stand over there______ you’ll be able to see it better.（2004天津）
A. or B. while C. but D. and
2. _____ straight on and you’ll see a church. You won’t miss it.（2004湖北）
A. Go B. Going C. If you go D. When going
3. There are eight tips in Dr. Roger’s lecture on sleep, and one of them is: _____to bed early unless you think it is necessary.（2004重庆）
A. doesn’t go B. not to go C. to going D. don’t go
4. –English has a large vocabulary, hasn’t it?
–Yes. _____ more words and expressions and you will it easier to read and communicate.（2004上海）
A. Know B. Knowing C. To know D. Known
5. Turn on the television or open a magazine and you _____ advertisements showing happy families.（2004湖南）
A. will often see B. often see C. are often seeing D. have often seen
6. _____ blood if you can and many lives will be saved.（2001上海）
A. Giving B. Give C. Given D. To give
7. _____ at the door before entering please.（2001春季）
A. Knocked B. To knock C. Knocking D. Knock
8. _____ some of this juice—perhaps you will like it.（2000春季）
A. Trying B. Try C. To try D. Have tried
9. –What should I do with this passage?
–_____the main idea of each paragraph.（2005重庆）
A. Finding out B. Found out C. Find out D. To find out
10. –Can the project be finished as planned?
–Sure, _____ it completed in time, we’ll work two more hours a day.（2005福建）
A. having got B. to get C. getting D. get
11. _____ more about university courses, call (920)746-3789.（2005浙江）
A. To find out B. Finding out C. Find out D. Having found out
12. Follow your doctor’s advice, _____ your cough will get worse.（2005辽宁）
A. or B. and C. then D. so
13. If you are planning to spend your money having fun this week, better _____it—you’ve got
some big bills coming.（2004广东）
A. forget B. forgot C. forgetting D. to forget
14. Don’t be discouraged. _____ things as they are and you will enjoy every day of your life.
A. Taking B. To take C. Take D. Taken
15. _____ and I’ll get the work finished.（2006重庆高考题）
A. Have one more hour B. One more hour
C. Given one more hour D. If I have one more hour
16. Don’t worry if you can’t come to _____ party—I’ll save _____ cake for you.（2006浙江）
A. the; some B. a; much C. the; any D. a; little
17. Look at the timetable. Hurry up! Flight 4026 _____ off at 18:20.（2006四川）
A. takes B. took C. will be taken D. has taken
18. Start out right away, _____ you’ll miss the first train.（2006四川）
A. and B. but C. or D. while
19. Ladies and gentlemen, please fasten your seat belts. The plane _____.（2006get out of福建）
A. takes off B. is taking off C. has taken off D. took off
20. Always read the _____ on the bottle carefully and take the right amount of medicine.（2006福建）
A. explanations B. instructions C. des criptions D. introductions
21. Don’t sit there nothing. Come and help me with this table.（2006湖北）
A. do B. to do C. doing D. and doing
[参考答案和提示] 1.D 2. A 3. D 4. A 5. A 6. B 7. D 8. B 9. C 10. B 11. A 12. A 13. A 14. C 15. B 16. A 17. A 18. C 19. B 20. B 21. C
祈使句与高考
河南省淮阳中学高三备课组 赵开中 丁一
作为简单句的一种，祈使句是用来表示请求、命令、建议、叮嘱、劝告、厌烦、祝愿或邀请等含义。其主语通常省略，但也可加上主语以示强调。祈使句的主语使用动词原形，句子一般使用降调，句末使用句号或叹号。结合近几年高考中的有关试题，现将其常用形式归纳如下：
一、 不带主语的祈使句；
Be careful next time!
Come and see me whenever it is convenient to you.
二、 带主语的祈使句；为了加强语气或指明同谁说话，可在动词前加上主语。加上
主语时，由于是面对面说话并直呼其名，故不论第几人称，动词均用原形，不考虑主谓一致问题。
Nobody move！ 谁都别动！
试比较：Nobody moves. 没人动
Mary come here —everybody else stay where you are.
(老师对学生们说) 马丽过来，其他人都别动。
You put on more clothes. It’s cold outside. (加强语气)
三、 （条件）祈使句+and/ or+ （结果）简单句；此句型为“条件与结果”并存的句式，其中的祈使句可转化为if条件句。
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