英语祈使句ppt

Washyourhands.Openthedoor,please.Letsgotoschool.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.,Dontwashyourhands.Dontopenthedoor,please.Dontturnleft.Dontbequiet,please.(Pleasebequiet.）Dontsitdownplease.,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：Dontdosth.,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。,表达方式,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。,表达方式,否定结构:1.Do型和Be型的否定式都是在句首加dont构成。如:Dontforgetme!不要忘记我!Dontbelateforschool!上学不要迟到!2.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:Dontlethimgo./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，Dont开头是旋律；NOtalking！是警示，祈使用法要牢记！,牢记，牢记，再牢记,记住了没？,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,Letsplaytogether!2.Dontbelate.3.Answerthisquestion.4.Openthewindow,Turnleft!,GuessingGame,Turnright!,GuessingGame,GuessingGame,Dontsmoke!Nosmoking!,GuessingGame,Dontplayfootball!,GuessingGame,Dontparkyourcar!,GuessingGame,Donteat!,GuessingGame,Dontpicktheflowers!,Goupstairs!,GuessingGame,GuessingGame,Godownstairs!,第一关：LetsRead,Dontthrowthingsatthemonkeys.,Dontfeedtheanimals.,Dontwalkonthegrass.,Donttakephotographshere.,Dontleavelitter.,第二关LetsSay,Youcantsleeponthedesk.,Dont_onthe_.,Youcantclimbtreesinthepark.,Dont_.,Youcantsitonthegrass.,_.,sleep,desk,climbtreesinthepark,Dontsitonthegrass,第三关LetsWrite,第四关Playagame:Lookandguess,Nosmoking,Donttouch,Donteat./Dontdrink.,Noparking,Bequiet,Letsdoexercise.,1.Jim,_meahand.A.givesB.isgivingC.willgiveD.give2._careful,Jenny!Thereisatreeinfrontofyou.A.AmB./C.BeD.Was3.Lets_ourtime.A.notwasteB.nowastingC.nottowasteD.nowaste4._higher,andyouwillseethehouse.OK.A.IfyoustandB.TostandC.WhenyoustandD.Stand,Exercises:,5.Please_doit.A.heB.lethimC.letheD.him6._letanyoneopenthedoor.A.DontB.WillC.NotD.No,Exercises:,Letsdomoreexercises.,1._forgettowritetome.A.DontB.Please2._careful!A.BedoB.BeC.NotD.N