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高一外研版必修四Module2TrafficJamGrammarTurnrightDon’tgofasterthan90kph.Don’tturnleft./Noleftturn.Don’tstop./Noparking.Don’twalk/NopedestriansadviceinstructionspermissioninformationinstructionsGrammar-1.Look&Say(5ms)Lookatthesignsandsaywhattheydo.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。Grammar-2.Definition1.Listentomecarefully.2.Comeinandsitdown,please.3.Don’tclosethewindow–it’shot.4.Bequiet!5.Let’stryourbesttoimproveourenvironment.Grammar-3.ObservationWhat’sthefeaturesofImperativesGrammar-4.Conclusion1祈使句的肯定形式主要有以下几种Do型（以行为动词开头）Standup!Be型（以be动词开头）Becareful.Let型（以let开头）Let’sgohome.Grammar-5.Conclusion2祈使句的否定形式主要有以下几种Do型（以行为动词开头）Don’tstandup!/Neverstandup!Be型（以be动词开头）Don’tbelate./Neverbelate.Let型（以let开头）Let’snotgohome.Grammar-6.Conclusion3Dobepatient!Dositdown.Dowritebackwhenyoureceivehisletter.Tom,youcleantheroom.Youcleanthewindow.加强祈使句语气的方式:在谓语前+do/或加上主语（Tom,you)Openthewindow,please.Willyougofishingwithmethisafternoon?Wouldyoudomeafavor?Grammar-7.ObservationDoyouknowhowtomakeimperativesmorepolite?Couldyoushowmehowtogettotherailwaystation?Handthedictionarytome,willyou?Let’sgooutforawalk,shallwe?Whydon’tyougetsomethingtodrink?Isuggestwe(should)takethetrain.Grammar-8.SummaryWillyou/Wouldyou/Couldyou+动词原形?句末,+please?句末,+willyou/shallwe?Whynotdosomething?Whydon’tyoudosomething?You’dbetterdosomething.Suppose/Supposing…Isuggest…1.________onthepavement.2._____inthebicyclelanes.3.______atredtrafficlights.4.______therulesoftheroad.Don’tgoStayStopKeepbreakgokeeplookridestopstaywatchoutGrammar9-Practice1Completethefollowingsentences5._________forpedestrians.6.______behindyoubeforeyouturnrightorleft.7.__________inthemiddleoftheroad.LookWatchoutDon’tride1.Standoverthere___you’llbeabletoseeitbetter.A.orB.whileC.butD.and2.I’veneverseenanyonerunsofast–______Davidgo.A.justwatchB.justtowatchC.justwatchingD.justhavingwatchedDAGrammar10–Practice2Choosethebestanswer3.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。B6.___downtheradio—thebaby’sasleepinthenextroom.A.TurningB.TurnedC.TurnD.Toturn祈使句以动词原形开头。C7.–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。B8.You’dbetternotsmokehere,_______?A.willyouB.shallyouC.haveyouD.hadyou有hadbetter的句子构成反意疑问句,用had构成。D9.Don’tforgettophoneme,______?A.doyouB.needn’tyouC.won’tyouD.willyou否定祈使句的反意疑问句用will构成。D10.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。C11.---Englishhasalargevocabulary,hasn’tit?---Yes._______morewordsandexpressionsandyouwillfinditeasiertoreadandcommunicate.(2004上海)A.KnowB.KnowingC.T...