初中英语祈使句讲解(共4页).docx

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1、精选优质文档-倾情为你奉上祈使句（一） 概念：用来表示请求、命令、叮嘱、邀请、劝告的句子是祈使句。（二） 一般祈使句（省略第二人称主语you）1. 肯定句：动词原形+ Be brave.Stand up.Stop talking!Come on and join us!a. 有时，为了加强语气，可以在动词之前加do.Do study hard.Do sit down.b. 为了使语气显得客气，可在祈使句的句首或句尾加上please. Please在句尾时，之前一定要加一个逗号。Please come here.Go this way, please.c. 祈使句有唤语，一定要用逗号隔开，放在句

2、首或句尾。Li Ming, come here.Here you are, Eric.2. 否定句：Dont + 动词原形 + Dont swim in the river.Dont be late.Please dont be noisy.Dont tell her, please.（三） Let祈使句（含有第一、三人称主语）1. 肯定句：Let sb. do sth.Lets go swimming on Sunday.Let me try again.Let Tom go there himself.Let the news be known.Let each man decide fo

3、r himself.2. 否定句：Let sb. not do sth. 或Dont let sb. do sth.Dont let her waste time.Dont let him hear you say that.Let her not do it alone.Lets not say anything about it.Dont let them play with fire.3. 注意：Lets表示包括对方。Let us表示不包括对方。Lets go, shall we? （包括对方）Let us go, will you? （请求对方许，不包括对方）（四） 句型转换：祈使句+

4、and/or+陈述句祈使句相当于if引导的条件状语从句。Use your head, and you will find a way.= If you use your head, you will find a way.Work hard, or you will fail.=If you dont work hard, you will fail.练习：Come early, and you will catch the first bus.= Come early , or you will miss the first bus.= 连词：1、and, then, and then 就，

5、那么2、or, or else, otherwise 否则，要不然比较：1、Come early and you will catch the first bus. 早点来，你就能赶上第一班车。2、Come early , or you will miss the first bus. 早点来，不然赶不上第一班车了。3、Use your head, then you will find a way. 开动脑筋，那么你就能找到办法。4、Use your head , or esle, you wont find a way. 开动脑筋，否则你就找不到办法。5、Work hard, and then you wont fail. 努力干，你才不会失败。6、Work hard, otherwise you will fail. 努力干，不然你会失败的。专心-专注-专业