初中英语――祈使句祈使句指的是表示命令、请求、建议或劝告的句子。
其主语you常省略，谓语动词用原形，句末用感叹号或句号，读降调。
1. 肯定的祈使句（1）动词原形+其他（为了使祈使句语气委婉些，常在句首或句尾加上please, 若把please放在句尾，其前要用逗号隔开。
）Stand up, please. = Please stand up. 请起立。
（2）Be + adj.(形容词)Be careful! = Look out! = Take care! 小心/ 当心！（3）Let's + 动词原形Let’s go to school together. 咱们一起上学去吧。
2. 否定的祈使句(1) Don't + 动词原形Don't stand up. 别站起来。
Don't be careless. 别粗心。
Don't let them play with fire. 别让他们玩火。
（2）Let's ( let sb ) + not + 动词原形Let's not say anything about it. 对于这件事，咱们什么也别说。
Let them not play with fire. 别让他们玩火。
（3）No+名词、动词-ing （“禁止做某事”，常用于公共场合的提示语）No photos. 禁止拍照！No smoking！禁止吸烟！3. 祈使句的反意疑问句(1) 肯定祈使句的反意疑问句，反问部分用will you 或won't you。
Please open the door, will/ won’t you? 请把门打开，好吗？(2) 否定祈使句的反意疑问句，反问部分只用will you。
Don't be late again, will you? 别再迟到了，行不行？(3) 以let's开头的祈使句反意疑问句，反问部分用shall we。
Let's turn on the TV, shall we? 我们把电视打开，好吗？<特别注意> 只有以let's开头的祈使句的反意疑问句的反问部分才用shall we，而let us 开头的祈使句的反意疑问句的反问部分应为will you或won't you.（因为let’s 包括说话人在内，而let us不包括）如：Let us stay here, will/ won't you? 请（你）让我们留在这好吗？语法练兵场（）1. The TV is too loud. Please________.A. turn it downB. to turn it downC. turn down itD. to turn down it （）2. _______ late again, Bill!A. Don't to beB. Don't beC. Not beD. Be not（）3. _______ cross the road until the traffic lights turn green.A. NotB. Won'tC. Doesn'tD. Don't（）4. Please help me carry it, ______?A. will IB. will youC. shall ID. shall we（）5. Don't make so much noise, ______?A. will youB. won't youC. shall weD. do you（）6. Kate, _______ your homework here tomorrow.A. bringB. bringsC. to bringD. bringing（）7. ________ me the truth, or I'll be angry.A. TellingB. To tellC. ToldD. Tell（）8.—Mum, ________ me a cup of tea, please.--- ________ drink tea before going to bed. It’s bad for your health.A. give; NotB. gives; NotC. gives; Don’tD. give; Don’t （）9. -- ________ to meet me at the gate. -- I won’t .A. Not forgetB. Forget notC. Don’t forgetD. Not to forget （）10. — Call me when you get home. — OK, ____.A. I mustB. I canC. I willD. I may（）11. Jim, _____ me a hand.A. givesB. is givingC. giveD. will give（）12. Let me ____ on duty today.A. amB. /C. beD. do（）13. Let’s ____ our time.A. not wasteB. no wastingC. not to wasteD. no waste（）14. — ___ higher, and you will see the house. — OK.A. If you standB. To standC. When you standD. Stand（）15.Please _____ do it.A. heB. he letC. let himD. him16. Will you please read it again more slowly? （改为祈使句）_____ _____ again more slowly, please.17. Would you like to wait a moment?（改为祈使句）_____ _____ a moment.18. Can I use your bike?（改为祈使句）Please _____ _____ your bike.19. You’d better not smoke her e.（改为祈使句）_____ ____ here.20. You must be careful with your handwriting. （改为祈使句）_____ _____ with your handwriting.21. Will you please not play with my pencil? （改为祈使句）____ ____ with my pencil,____.22. If you don't listen to me, I'll go. （改为同义句）_____ _____ me, or I’ll go.23. Let's watch the sports games. （改为反意疑问句）Let's watch the sports games, _____ _____?24. The teachers often tell the students not to be careless. （改为祈使句）_____ _____careless, please.25. Please sit next to Nancy. （改为否定句）_____ _____ next to Nancy.26. Don't forget to turn off the lights, please. （改为反意疑问句）Don't forget to turn off the lights, _____ _____?27. If you move, you'll die. （改为同义句）_____ _____, or you'll die.28. Come to my house tomorrow. （改为反意疑问句）Come to my house tomorrow, _____ _____?29. You shouldn’t be late again. （改为祈使句）_______ ________ late again!30. Let’s sing this English song together. (改为否定句)Let’s _______ ________ this song together.31. ________ (open) the window, please. It’s so hot.32. ________ (not feed) the goldfish too much food.33. It’s raining. Let’s ________ (not play) football outside.34. ________ (not be) afraid. You can do it.35. Let’s ________(go) to the library together.36. ________ （keep）exercising, and you’ll be healthier.37. ________ (not speak ) with your mouth full and ________ (be) polite.38. ________ (look) out! A car is coming!39. ________ (give) us ten years and just see what our country will be like.40. Cindy, ________ (sure) to be here at 8 o’clock.。