英语祈使句ppt

Washyourhands.Openthedoor,please.Let’sgotoschool.Turnleft.Bequiet,please.(Pleasebequiet.）Sitdownplease.去洗你的手请开门。我们去电影院吧左转请安静请坐下肯定祈使句的结构如下：Do(动词原形)sth,please.Don'twashyourhands.Don'topenthedoor,please.Don'tturnleft.Don'tbequiet,please.(Pleasebequiet.）Don'tsitdownplease.不要洗你的手请不要开门。不要左转不要安静不要坐下否定祈使句的结构如下：Don'tdosth.祈使句定义表示请求、给予命令或指示的句子叫祈使句。祈使句通常省略主语“you”，动词一律用动词原形。●肯定结构:•1.Do型(即:动词原形(+宾语)+其它成分)。如:Pleasehaveaseathere.请这边坐。•2.Be型(即:Be+表语(名词或形容词)+其它成分)。如:Beagoodboy!要做一个好孩子!•3.Let型(即:Let+宾语+动词原形+其它成分)。如:Letmehelpyou.让我来帮你。•●否定结构:•1.Do型和Be型的否定式都是在句首加don't构成。如:Don'tforgetme!不要忘记我!•Don'tbelateforschool!上学不要迟到!•2.Let型的否定式有两种:“Don't+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:Don'tlethimgo./Lethimnotgo.别让他走。•3.有些可用no开头,用来表示禁止性的祈使句。如:Nosmoking!禁止吸烟!Nofishing!禁止钓鱼!•祈使句，无主语，只要动词就可以；•表示请求或命令，加上please表客气；•如果变成否定句，Don’t开头是旋律；•NOtalking！是警示，祈使用法要牢记！轻松小练习1.咱们一起玩吧2.请不要迟到.3.回答这个问题.4.打开窗户1.Let'splaytogether!2.Don'tbelate.3.Answerthisquestion.4.OpenthewindowTurnleft!GuessingGameTurnright!GuessingGameGuessingGameDon’tsmoke!Nosmoking!GuessingGameDon’tplayfootball!GuessingGameDon’tparkyourcar!GuessingGameDon’teat!GuessingGameDon’tpicktheflowers!Goupstairs!GuessingGameGuessingGameGodownstairs!第一关：Let’sReadDon’tthrowthingsatthemonkeys.Don’tfeedtheanimals.Don’twalkonthegrass.Don’ttakephotographshere.Don’tleavelitter.第二关Let’sSayYoucan’tsleeponthedesk.Don’t_______onthe________.Youcan’tclimbtreesinthepark.Don’t______________________.Youcan’tsitonthegrass.____________________________.sleepdeskclimbtreesintheparkDon’tsitonthegrass第三关Let’sWritePlacesRuleslibraryDon’ttakethebooksaway.schoolparkzoocinema第四关Playagame:LookandguessNosmokingDon'ttouchDon'teat./Don'tdrink.NoparkingBequietLet’sdoexercise.1.Jim,_____meahand.A.givesB.isgivingC.willgiveD.give2.____careful,Jenny!Thereisatreeinfrontofyou.A.AmB./C.BeD.Was3.Let's____ourtime.A.notwasteB.nowastingC.nottowasteD.nowaste4.—____higher,andyouwillseethehouse.—OK.A.IfyoustandB.TostandC.WhenyoustandD.Stand5.Please___doit.A.heB.lethimC.letheD.him6._____letanyoneopenthedoor.A.Don'tB.WillC.NotD.NoLet’sdomoreexercises.1._____forgettowritetome.A.Don'tB.Please2._____careful!A.BedoB.BeC.NotD.Notdo3._____letanyoneopenthedoor.A.Don'tB.WillC.NotD.NoBBA4._____getoffthelorryuntilitstops.A.DoB.Can’tC./D.Don’t