高中英语祈使句ppt课件.ppt

外研版高一年级(必修4)Module2,1,Grammar:Imperatives,2,祈使句表示命令,请求,建议,劝告或号召的句子叫做祈使句。祈使句可分为第二人称祈使句和第一,三人称祈使句。祈使句的主语为you,通常省略,谓语动词使用原形,句末用感叹号或句号。祈使句的主语为第一,三人称句子结构为:Let+动词原形+其他成分或Lets+动词原形+其他成分。,3,例句:主语为第二人称Switchoffthemotor.Followtherulesoftheroad.Dontleavethelighton.,4,主语为第一,三人称Letmesee.Lethercomehereateightoclock.Letushelpyoutidyyourroom.Letshaveabreak.,5,祈使句的否定式:第二人称祈使句一般在句首加dont;第一人称祈使句一般在人称代词后加not;第三人称祈使句一般在句首加dont。有时为了加强祈使句的语气,可以在谓语动词前加do。,6,例如：Dontbelateagain.Dontletherbealone.Letusnottalkofthatmatter.Dostudyhardatschool.,2.加强祈使句的语气：有时为了使语气更委婉,可以使用Will/Would/Couldyou+动词原形、在句末加please、在句末加willyou/shallwe、Whynot/,7,Whydontyou+动词原形、Youdbetter+动词原形、Isuggest.等。例如：Wouldyoucometodinnerwithmetonight?,8,3.祈使句表祝愿的方式：Successtoyou!Wishyouagoodjourney.Mayyouhaveahappymarriage.Herestoyoursuccess!Allowmetoproposeatoasttoourfriendship!,9,4.含let的祈使句:Letsomebodyv./adv.Letsbefriends.Letmehaveatry,willyou?Lethimin,please.,10,5.不用动词开头的祈使句。Topumps,everyoneofyou!Totheairport,taxi!Downwiththepens!Nosmoking!Noparking!Nospitting!Nolitter!Noadmittanceexceptonbusiness!,11,用祈使句完成下列句子。,1._onthepavement.2._inthebicyclelanes.3._atredtrafficlights.4._therulesoftheroad.,Dontgo,Stay,Stop,Keep,breakgokeeplookridestopstaywatchout,12,5._forpedestrians.6._behindyoubeforeyouturnrightorleft.7._inthemiddleoftheroad.,Look,Watchout,Dontride,13,1.Standoverthere_youllbeabletoseeitbetter.A.orB.whileC.butD.and2.Iveneverseenanyonerunsofast-_Davidgo.A.justwatchB.justtowatchC.justwatchingD.justhavingwatched,D,A,14,3.Letuspass,_?A.shantweB.shallweC.wontweD.willyou4.Waitaminute,_?A.shallyouB.willyouC.doyouD.dontyou,D,B,15,5.Alice,youfeedthebirdtoday,_?ButIfedityesterday.A.doyouB.willyouC.didntyouD.dontyou,本题中Alice并不是句子的主语,而是祈使句,为了引起对方的注意。,16,6._downtheradiothebabysasleepinthenextroom.A.TurningB.TurnedC.TurnD.Toturn,祈使句以动词原形开头。,17,7.Howaboutafilmtonight?_Ihaventbeentothecinemaforalongtime.A.Yes,thanksB.Whynot?C.No,goawayD.Itsapity.,-今晚去看电影怎样?-为什么不呢?我很久没去过电影院了。,18,8.Youdbetternotsmokehere,_?A.willyouB.shallyouC.haveyouD.hadyou,有hadbetter的句子构成反意疑问句,用had构成。,19,9.Dontforgettophoneme,_?A.doyouB.needntyouC.wontyouD.willyou,否定祈使句的反意疑问句用will构成。,20,10.Letshaveacupoftea,_?A.shallyouB.willyouC.shallweD.wontyou,以lets开头的祈使句用s