外研版高一年级(必修4)Module2Grammar:ImperativesGrammar:Imperatives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Let’s+动词原形+其他成分。例句:主语为第二人称(1).Switchoffthemotor.(2).Followtherulesoftheroad.(3).Don’tleavethelighton.主语为第一,三人称Letmesee.Lethercomehereateighto’clock.Letushelpyoutidyyourroom.Let’shaveabreak.1.祈使句的否定式:第二人称祈使句一般在句首加don’t;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don’t。有时为了加强祈使句的语气,可以在谓语动词前加do。例如：Don’tbelateagain.Don’tletherbealone.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/Whydon’tyou+动词原形、You’dbetter+动词原形、Isuggest...等。例如：Wouldyoucometodinnerwithmetonight?3.祈使句表祝愿的方式：Successtoyou!Wishyouagoodjourney.Mayyouhaveahappymarriage.Here’stoyoursuccess!Allowmetoproposeatoasttoourfriendship!4.含let的祈使句：Letsomebodyv/adv.Let’sbefriends.Letmehaveatry,willyou?Lethimin,please.5.不用动词开头的祈使句。Topumps,everyoneofyou!Totheairport,taxi!Downwiththepens!Nosmoking!Noparking!Nospitting!Nolitter!Noadmittanceexceptonbusiness!用祈使句完成下列句子。1.________onthepavement.2._____inthebicyclelanes.3.______atredtrafficlights.4.______therulesoftheroad.Don’tgoStayStopKeepbreakgokeeplookridestopstaywatchout5._________forpedestrians.6.______behindyoubeforeyouturnrightorleft.7.__________inthemiddleoftheroad.LookWatchoutDon’tride1.Standoverthere___you’llbeabletoseeitbetter.A.orB.whileC.butD.and2.I’veneverseenanyonerunsofast----______Davidgo.A.justwatchB.justtowatchC.justwatchingD.justhavingwatchedDA3.Letuspass,_______?A.shan’tweB.shallweC.won’tweD.willyou4.Waitaminute,______?A.shallyouB.willyouC.doyouD.don’tyouDB5.–Alice,youfeedthebirdtoday,____?–ButIfedityesterday.A.doyouB.willyouC.didn’tyouD.don’tyou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。6.___downtheradio—thebaby’sasleepinthenextroom.A.TurningB.TurnedC.TurnD.Toturn祈使句以动词原形开头。7.–Howaboutafilmtonight?–____Ihaven’tbeentothecinemaforalongtime.A.Yes,thanksB.Whynot?C.No,goawayD.It’sapity.--今晚去看电影怎样?--为什么不呢?我很久没去过电影院了。8.You’dbetternotsmokehere,_______?A.willyouB.shallyouC.haveyouD.hadyou有hadbetter的句子构成反意疑问句,用had构成。9.Don’tforgettophoneme,______?A.doyouB.needn’tyouC.won’tyouD.willyou否定祈使句的反意疑问句用will构成。10.Let’shaveacupoftea,________?A.shallyouB.willyouC.shallweD.won’tyou以let’s开头的祈使句用shallwe,以letus开头的祈使句用willyou,构成反意疑问句。•FinishtherelatedexercisesonWB.•Reviewthethegrammarofthisperiod.
