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1、Simon says!If you hear “Simon says touch your eye, then you touch your eye.If you hear “Touch your eye” without Simon says, then dont touch your eye, just stay there. Imperative Sentence 祈 使 句Turn left!Guessing GameTurn right!Guessing GameGuessing GameDont smoke!No smoking!Guessing GameDont play foo
2、tball!Guessing GameDont park your car!No Parking!Guessing GameDont eat!Guessing GameDont pick the flowers! Go upstairs!Guessing GameGuessing Game Go downstairs!Turn left!Turn right! Go upstairs! Go downstairs!Dont smoke!Dont play football!Dont park your car!Dont eat!Dont pick the flowers!Draw the co
3、nclusion (得出结论得出结论) 祈使句祈使句 : 是表示请求、命令、建议等是表示请求、命令、建议等 句子句子.谓语动词一律用原形。句子中通常不谓语动词一律用原形。句子中通常不用主语，句末用惊叹号或者句号用主语，句末用惊叹号或者句号,句首句首动词只用原型。动词只用原型。 祈使句的句型祈使句的句型1.肯定的祈使句肯定的祈使句(1)句型：动词原形句型：动词原形.（省略主语（省略主语you）（You）Stand up. 起立。起立。 (You) Be quiet，please. 请安静。请安静。(2)用客气的语气表示祈使句时，可在句首或用客气的语气表示祈使句时，可在句首或句尾加上句尾加上ple
4、ase，但如果在句尾加但如果在句尾加please，那在那在please之前一定要加一个之前一定要加一个 “，”。请这边走。请这边走。 Please go this way. / Go this way，please. (3)祈使句中如果有祈使句中如果有唤语，一，一定要用逗号定要用逗号“，”隔开，放隔开，放在句首或句尾。在句首或句尾。Li Ming，come here. （4）Let+第一人称（第一人称（me，us）Let me have a look. Let us go. Lets go. 注意注意:Lets包括包括对方，方，Let us不包括不包括对方。方。(5) Let+第三人称代第三人
5、称代词（宾格：格：him，her，it，them）或名或名词.Let Tom go there himself.2. 否定的祈使句否定的祈使句（1）Dont +动词原形Work too hard.Dont work too hard. 别在河里游泳。在河里游泳。Dont swim in the river.别迟到。Dont be late.要大声喧哗。Please dont make too much noise.（2）Let 句型句型以以 let us/ lets开开头的祈使句，否定的祈使句，否定形式通常是在形式通常是在动词前面直接加前面直接加not.Lets/ Let us+not +动词
6、原形原形. Lets not open the door. Let us not go that far.(3)Dont let +第三人称代第三人称代词的的宾格或名格或名词+动词原形原形.别让他他们玩火。玩火。Dont let them play with fire. (4)表示表示“禁止禁止”时，尤其是，尤其是标语等等也可以用也可以用“No+Ving”来表示。来表示。禁止吸烟禁止吸烟No smoking. 禁止停禁止停车No parking.禁止游泳禁止游泳No swimming. 祈使句常祈使句常见题型型祈使句变反意疑问句祈使句变反意疑问句祈使句祈使句后可以加一个简短问句，后可以加一个简
7、短问句，使语气变得客气一些使语气变得客气一些 。 祈使句祈使句+ will you? Open the door, will you? Clean your room, will you?Let me或或 Let us表示听话人表示听话人提出请求提出请求,问句用问句用 will you . Let me . , will you? Let me help you, will you?当祈使句带有主语时有时祈使句带有自己的主语，此时不要将有时祈使句带有自己的主语，此时不要将其误认为是陈述句：其误认为是陈述句：Jim, you go there to help him, will you? You
8、 girls stand in the front row, will you? Lets 表示说话人向对方提出建议，表示说话人向对方提出建议，简短问句的主要是简短问句的主要是we, 所以祈使所以祈使句用句用shall we? Lets , shall we? Lets go to the park, shall we?Do Do 句型句型Do，放在动词前，加强语气。，放在动词前，加强语气。Do come in, please!Do listen to me , please!Do open the door , please!如何回答祈使句如何回答祈使句A:Wake me up early
9、tomorrow.B:OK, I will. Summary 祈使句祈使句祈使句祈使句,无主无主语,只用只用动词就可以就可以.表示表示请求或命令求或命令,加上加上please表客表客气。气。如果如果变成否定句，成否定句， Dont开开头是是规律。律。No talking!是警示，祈使句用法是警示，祈使句用法要牢要牢记。Lets do some exercises!1. Call me when you get home. OK, _. A. I must B. I can C. I will D. I may2. Jim, _ me a hand. A. gives B. is giving
10、C. give D. will give3. Let me _ on duty today. A. am B. / C. be D. do4. Lets _ our time. A. not waste B. no wasting C. not to waste D. no waste5. _ higher, and you will see the house. OK. A. If you stand B. To stand C. When you stand D. StandCCCADChoose the correct answer. 6. _ forget to write to me
11、 when you _ get there. A. Dont; will B. Please; will C. Please; / D. Dont; / 7. Please _ do it. A. he B. he let C. let him D. him8. _ come in, please. A. Will B. Do C. Wont D. Did9. _ careful! A. Be do B. Do be C. Not D. Not do10. _ let anyone open the door. A. Dont B. Will C. Not D. NoDCBBA11. Let
12、John finish the work all by himself, _? A. shall we B. will you C. do you D. do we12. -Lets go home, shall we? - _. A. Thats right. B. Thats all C. Thats all right D. All right13.Please turn on the light, _? A. are you B. shall we C. shall I D. will you14. Dont tell him the fact now, _? A. shall we
13、B. shall you C. will you D. do you15.Let the children not make so much noise, _? A. shall we B. will you C. shall I D. do youBDDCB16. _ 6 and 4, and you will get ten. A. Added B. Adding C. To add D. Add17._ late again, or Ill report it to your father. A. Dont be B. You arent C. Cant be D. Arent 18.Dont interrupt her when she is speaking, _? A. wont you B. will you C. shall we D. shant we19. _ get off the lorry until it stops. A. Do B. Cant C. / D. Dont20.Lets not begin our supper until father comes back, _? A. will you B. wont you C. shall we D. shant weDABDC
