外研高一必修4课件grammar

Grammar: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.Switchoffthemotor..Followtherulesoftheroad..Don’tleavethelighton.主语为第一,三人称Letmesee.Lethercomehereateighto’clock.Letushelpyoutidyyourroom.Let’shaveabreak.1.祈使句的否定式：Don’t+动词原形

Don’tbenervous!Don’tmakeanynoiseinthereadingroom.2.加强祈使句的语气：在谓语前+do/youDobepatient!Dowritebackwhenyoureceivehisletter.

Tom,youcleantheroom.Don’tyoubelateagainnexttime!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’tgo

Stay

Stop

Keep

breakgokeeplookridestopstaywatchout5._________forpedestrians.6.______behindyoubeforeyouturnrightorleft.7.__________inthemiddleoftheroad.LookWatchoutDon’tride1.(04.天津)Standoverthere___you’llbeabletoseeitbetter.A.orB.whileC.butD.and2.(04.浙江)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,________