英语祈使句(八上unit-8语法).ppt
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英语祈使句讲解英语祈使句讲解八年级上册八年级上册unit8语语法法定义:
定义:
用于表达命令、请求、劝告、警告、禁止等的句子叫做祈使句。
祈使句通常省略第二人称的主语;祈使句的动词都为原形。
Goandwashyourhands.Bequiet,please.(Pleasebequiet.)Bekindtooursister.Watchyoursteps.Lookout!
Danger!
Keepoffthegrass.Noparking.祈使句的类型:
祈使句的类型:
肯定祈使句否定祈使句以let开头的祈使句No+动名词/名词其它类型祈使句肯定祈使句肯定祈使句一、直接以动词原形开头一、直接以动词原形开头,please可在句首可在句首,也可在句末也可在句末。
Do型。
直接以动词原形开型。
直接以动词原形开头头Be型。
型。
Be+表表语语Becareful.Bequiet.Pleaselookattheblackboard.Listentomecarefully.Gohomeatonce.二、肯定祈使句的回答:
二、肯定祈使句的回答:
肯定回答:
肯定回答:
Yes,Iwill.否定回答:
否定回答:
Sorry,Icant.Imbusydoingmyhomework.否定祈使句否定祈使句否定祈使句否定祈使句=Dont+肯定祈使句(肯定祈使句(Dont+V原)原)Donttalkinclass.Donteatinclass.Dontruninthehallway.Dontdrawonthewall.Dontthroweverywhere.二、否定祈使句的回答:
二、否定祈使句的回答:
Ofcourse,Iwont.Sorry,Iwontdothatnexttime.以以letlet开头的祈使开头的祈使句句一、LetsbdosthLetsbnotdosthLetusmakefruitsalad.Letyourfathercallmeback.Lethimnotplaybasketballhere.Letthemnotplaythedrumsnow.二、二、以以letlet开头的祈使句的回答:
开头的祈使句的回答:
Thatsagoodidea./Thatsoundsgood.Oh,No.Itstoohot.Oh,No.LetswatchTVathome.No+动名词/名词Nosmoking!
Nosmokinginthemeetingroom!
Noparking!
Nophotos!
其它类型祈使句Whydontyoudosth?
=Whynotdosth?
相当于相当于Pleasedosth.Whydontyoustandup?
=Whynotstandup?
Whydontyougoouttoplay?
=Whynotgoouttoplay?
1.thepopcornmachine.A.TurnonB.TurningonC.ToturnonD.Turnson2.thesandwichbeforeyouwashyourhands.A.EatingB.NoteatingC.DonteatD.Noteat3.-lateforthemeetingnexttime.-Sorry,Iwont.A.DontB.DontbeC.wontbeD.Benot4.Letstoschoolbybike.A.notgoB.nottogoC.dontgoD.notgo5.abananamilkshakeiseasy.A.MakeB.MakesC.MakingD.Made6.-Dontboilthevegetabletoolong.-.A.Yes,IwontB.Yes,IwillC.No,IwillD.No,Iwont7.addingsomerelishtothesoup?
A.WhynotB.WhydontC.WhataboutD.Whatfor8.-Dontdrivetoofast!
Itsdangerous.-.Iwillslowdown减速.A.GreatB.CertainlyC.CoolD.Sorry9.-Jace,letsplaytennis.-.A.ThatsoundsgoodB.Yes,IdoC.DontworryD.Yourewelcome10.-Pleasecutupthetwobananas.-.A.Yes,IcanB.Yes,IwillC.No,IdontD.Sorry,Icant