八年级英语上册 Unit 4 Do it yourself Grammar课件3 （新版）牛津版.ppt

Grammar,Unit4,Turnleft!,GuessingGame,Turnright!,GuessingGame,Walkonthezebracrossing!,GuessingGame,GuessingGame,Dontsmoke!Nosmoking!,GuessingGame,Dontparkyourcar!,GuessingGame,Dontpicktheflowers!,Readandobserve(观察),Turnleft!,Turnright!,Walkonthezebracrossing!,Dontsmoke!,Dontparkyourcar!,Dontpicktheflowers!,Theyareallimperativesentences.（祈使句）,句子,祈使句的结构如下：dosthDontdosth.,肯定：,否定：,祈使句表示请求、命令、建议等等。谓语动词一律用原形。句子中通常不用主语，句末用感叹号或者句号。,Drawtheconclusion(得出结论),祈使句句式详解,1.肯定的祈使句（1）动词原形+其他Standup,please.=Pleasestandup.请起立。（2）Be+adj.Becareful!=Lookout!=Takecare!小心/当心！（3）Lets+动词原形Letsgotoschooltogether.咱们一起上学去吧。,祈使句句式详解,2.否定的祈使句（1）Dont+动词原形Dontstandup.别站起来。Dontbecareless.别粗心。Dontletthemplaywithfire.别让他们玩火。（2）Lets(letsb)+not+动词原形Letsnotsayanythingaboutit.对于这件事，咱们什么也别说。Letthemnotplaywithfire.别让他们玩火。,祈使句句式详解,与please连用,使语气委婉为使语气委婉，通常将祈使句与please连用。Please可用于祈使句的句首，通常不用逗号如果用于句末，前面通常用逗号。如：Pleasedontgetangry.请不要生气。Pleasedrivemoreslowly.请开得慢一点。Trytobequiet,please.请设法保持安静。,Putupapictureonthewall.,Putupashelfonthewall.,Trytogiveinstructions,Dontswimhere.,Dontparkyourbikehere.,Parkyourbikehere.,Pleasegoslowly.,Dontsmokehere.,Dontfishhere.,Bequiet,please.,Dontmakeanynoise.,Howtomakecards,1.Cutoutthecard.,2.Writesomewordsonthecard.,Howtomakecards,3.Drawapictureontheothersideofthecard.,4.Lookatthepictureandtrytosaywhatisontheotherside.,Dontgiveup.Keeptrying.,1-Itsherbirthdaynextweek.-Then_heraboutthesurprisebirthday.(tell)2HowcanIgettoPeoplesHospital?-_alongthestreetand_leftatthelights.,donttell,turn,Go,Exercises,3-Wehavetofinishtheworkintwohours.-Thenlets_anytime.(waste)4-_somuchnoise,please.-Ok.(make),notwaste,Dontmake,Usingshouldandhadbetter,Weuseshouldandhadbetterwhengivingadviceandtellingpeoplewhatisthebestorrightthingtodo.Thetoneofhadbetterisstrongerthanshould.,hadbetterdosthhadbetternotdosthItisprettycold.Youdbetterputonmycoat.Shedbetternotplaywiththedog.shoulddosthshouldnotdosthYoushouldbequietinclass.Youshouldnotbelateforschool.,1.PleaseknowalittleaboutDIY.,YoushouldknowalittleaboutDIY.,Weuseshouldandhadbetterwhengivingadviceandtellingpeoplewhatisthebestorrightthingtodo.,YouhadbetterknowalittleaboutDIY.,2.Pleaseputinabrighterlightintheroom.,Youshouldputinabrighterlightintheroom.,Weuseshouldandhadbetterwhengivingadviceandtellingpeoplewhatisthebestorrightthingtodo.,Youhadbetterputinabrighterlightintheroom.,3.Donthitthepipe.,Youshouldnot/shouldnthitthepipe.,Youhadbetternothitthepipe.,Weuseshouldandhadbetterwhengivingadviceandtellingpeoplewhatisthebestorrightthingtodo.,4.Dontpaintthewholeroomblue.,Youshouldnot/shouldntpaintthewholeroomblue.,Youhadbetternotpaintthewholeroomblue.,Weuseshouldandhadbetterwhengivingadviceandtellingpeoplewhatisthebestorrightthingtodo.,DIYadvice,Readtheadviceandmakesentenceswithshould(not)orhadbetter(not).,buysometolearnmoreaboutit,Youshouldbuysometolearnmoreaboutit.,Youhadbetterbuysometolearnmoreaboutit.,DIYadvice,Readtheadviceandmakesentenceswithshould(not)orhadbetter(not).,joinaDIYclubtolearnmoreaboutit,YoushouldjoinaDIYclubtolearnmoreaboutit.,YouhadbetterjoinaDIYclubtolearnmoreaboutit.,DIYadvice,Readtheadviceandmakesentenceswithshould(not)orhadbetter(not).,beginyourworkwithoutreadingthem,Youshouldntbeginyourworkwithoutreadingthem.,Youhadbetternotbeginyourworkwithoutreadingthem.,DIYadvice,Readtheadviceandmakesentenceswithshould(not)orhadbetter(not).,playwiththemwhenyoudoDIYjobs,YoushouldnotplaywiththemwhenyoudoDIYjobs.,YouhadbetternotplaywiththemwhenyoudoDIYjobs.,DIYadvice,Readtheadviceandmakesentenceswithshould(not)orhadbetter(not).,bepatient,Youshouldbepatient.,Youhadbetterbepatient.,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.No7.Dontbelateagain.Sorry,_.A.ImayB.ImustC.IwillD.Iwont8.Callmewhenyougethome.OK,_.A.ImustB.IcanC.IwillD.Imay,Exercises:,9._forgettowritetomewhenyou_gettherenextTuesday.A.Dont;willB.Please;willC.Please;/D.Dont;/10._letanyoneopenthedoor.A.DontB.WillC.NotD.No11._6and4,andyouwillgetten.A.AddedB.AddingC.ToaddD.Add12._lateagain,orIll