英语语法祈使句

诚恳务实专一高效新华家教—伍老师工作室地址：新华巷29-1号联系热线：153969305051英语语法——祈使句①知识点：一、祈使句：用来表示下达命令、提出要求、建议和劝告的句子。说话的对象通常是第二人称you,习惯上常省略。祈使句的肯定句谓语动词用原形，否定句一般用don’t,never开始。1．肯定祈使句句型1：动词let+第一、三人称宾格代词+V.例句：Let’sgotoschool.让我们去上学吧。Letmetry.让我试一试。Lethimcomeupstairs.让他上楼吧。句型2：动词+其他部分例句：Pleaseopenthedoor.请开门。Turntopagetwo.请将书翻到第二页。Listentome.请听我讲。Stoptalking.别说话。二、否定祈使句（一般在句首加Don’t.）1．Climbthetree,please.请爬树。（肯定句）Don’tclimbthetree!不要爬树。（否定句）2．Openthedoor.打开门。（肯定句）Don’topenthedoor.不要开门。（否定句）三、陈述句变祈使句1．Youcan’tmakefacesinclass.你不能在课堂上做鬼脸。Don’tmakefacesinclass.不要在课堂上做鬼脸。2．Youcan’treadinbed.你不要在床上看书。Don’treadinbed.不要在床上看书。祈使句的用法及练习（一）Be型(be+adj)Becareful!Bedangerous!Bequiet!（二）Do型(Do代表动词原形)Openthedoor!Closethewindow!Goandplayfootball!（三）Let's或Letus型Let'sgohome!LetushelpMary!Letmecleantheroom!（四）No+动名词，多用在标语禁令中Nosmoking!Noparking!Nospitting!No+动名词可以与Don't+动词原形替换。Nosmoking!=Don'tsmoke!诚恳务实专一高效新华家教—伍老师工作室地址：新华巷29-1号联系热线：153969305052三、否定形式Be型和Do型前直接加Don't，Let's型可前面直接加Don't或let's后加not。Don'tbecareful!Don'topenthedoor!Don'tlet'sgohome!/Let'snotgohome!四、反意疑问句祈使句的反意疑问句一般用willyou?Let's---用shallwe?Letus---用willyou?Openthedoor,willyou?Let'sgohome,shallwe?LetushelpMary,willyou?②练习：（一）用括号内所给词的适当形式填空1．It'sanimportantmeeting.______(notbe)late.2．_____(look)out!Acariscoming!3．________(notmake)anynoise!Thebabyissleeping.4．Let's_______(notsay)anythingaboutit.5．________(notlet)thebabycry.6．_____(read)aloud,please.7．_________(nottalk)withyourclassmateintheclass.（二）选择题1．Herdoctorsaid:____worksohardA.stopB.Don'tC.can'tD.No2．Sindy,____tobehereat8o'clock.A.issureB.issurethatC.willbesureD.besure3．_____himthesecret,willyou?A.Don'ttellB.NottotellC.NottellingD.Notelling4．Please_____lookoutside,lookattheblackboard.A.notB.don'tC.aren'tD.can't5．John,readthetextforus,_____?A.doesheB.willheC.doyouD.willyou6．Let'sdoitatonce,_____?A.shallweB.willyouC.doweD.doyou7．Letusdoitatonce,____?A.shallweB.willyouC.doweD.doyou8．_____inbed,It'sbadforyoureyes.A.NottoreadB.Don'treadC.Don'ttoreadD.Notread9．____smoking!ADon'tB.NoC.Don'ttoD.Benot