1、Lets enjoy a song,巴塔木流行儿歌第一季 第06话 高清(480P).qlv,Lets go to the cinema!,Go upstairs!,No smoking!,Imperative sentence,content,Teaching aims,The ss can understand the definite of imperative sentence, the forms of it and master the usage of it.,content,什么是祈使句?,表示请求、命令、建议、祝愿、叮嘱或禁止的句子叫祈使句。用于祈使句句首的动词总是用原形,不
2、能用其他形式。,表示各种情感的祈使句,Turn off the TV, please. (请关上电视。请求) Lets get down to work. (咱们开始工作吧!建议)Have a nice day! (过个愉快的一天祝愿)Be kind to our sister. (对姊妹要和善。叮嘱) No parking!(禁止停车 禁止),content,祈使句的主语?,祈使句的主语通常为第二人称(you),但一般都被省略,只有在特殊的情况下才把主语(you)补充出来。如: You go and tell him, Chris. 有时祈使句的主语也可以是everybody, somebo
3、dy, anybody, nobody等不定代词。如: Stand up, everybody!,祈使句的肯定式,(即:动词原形+其它成分)。 如:Please have a seat here. 有的祈使句在意思明确的情况下,动词可省略。 如:This way, please. = Go this way, please.,(即:Be + 表语(名词或形容词)+其它成分)。 如:Be a good boy!,(即:Let + 宾语 + 动词原形 + 其它成分) 如:Let me try again.,祈使句的否定式,Do型和Be型的否定式都是在句首加dont构成。如:Dont forget
4、me! Dont be late for school!,Let型的否定式有两种:“Dont + let + 宾语 + 动词原形 + 其它成分”和“Let + 宾语 + not + 动词原形 + 其它成分”。如:Dont let him go. / Let him not go.,有些可用no开头,用来表示禁止性的祈使句。 如:No smoking! No fishing!,祈使句的反义疑问句,肯定祈使句的反意疑问句反问部分用will you 或wont you。Please open the door, will/ wont you?,否定祈使句的反意疑问句反问部分只用will you。 D
5、ont be late again, will you?,: Lets phone her now, ? 我们现在就给她打电话,好吗?Let us know your address, ? 请把你的地址告诉我们,好吗?,表示请求或命令时,用 will you;表示建议或劝诱时,用 shall we。,Shall we?,Will you,Conclusion,1.Do型和Be型 2.Let型 3.以No开头表禁止,1.肯定句的反义疑问句 2.否定句的反义疑问句 3.Let的反义疑问句,1.Do型 2.Be型 3.Let型,Exercises,1. _ me the truth, or Ill be angry.A. Telling B. To tell C. Told D. Tell 2. _ late again, Bill!A. Dont to be B. Dont be C. Not be D. Be not 3. Please help me carry it, _?A. will I B. will you C. shall I D. shall we 4. Dont make so much noise, _?A. will you B. wont you C. shall we D. do you,Thank you!,