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1、2019-2020年高中英语Module2TheFourthPeriod导学案外研版必修4TheFourthPeriodGrammar表示命令、请求、建议、劝告或号召的句子叫做祈使句。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。1.基本句型1)Do型（以行为动词原形开头）e.g.Getout!Standup!2)Be型e.g.Bequiet!Becarefulnexttime.3)Let+宾语+do型e.g.Lethimin,please!Let’slistentothemusic.2.祈使句的否定式：Don’t/Never+动词原形Don’tmakeany
2、noise!Neverdothatagain!注意：Let’s型祈使句，其否定式也可用Let’snot表达。例如：Let’snotplayanymore!Let’snotwasteourtime!3.加强祈使句语气的方式：在谓语前加do/you。DowritebackwhenyoureceivehisletterTom,youcleantheclassroom.4.祈使句的反义疑问句1）若陈述部分为祈使句，反义疑问句通常用willyou,won’tyou,wouldyou等。e.g.Mailthelettertoday,willyou?Trytobebackbytwo,won’tyo
3、u?Ifyouwanthelp,letmeknow,wouldyou?【注】若陈述部分为否定式，则反义疑问句部分只用willyou.e.g.Don’tforgettoposttheletter,willyou?有时根据语境的需要，反义疑问句也可以用canyou,can’tyou等e.g.Givemesomecigarettes,canyou?Walkfaster,can’tyou?一般说来，用willyou,won’tyou,wouldyou等构成的反义疑问句语气较委婉。e.g.Bequiet,willyou?请安静，好吗？Bequiet,can’tyou?你不能安静点儿吗？2)以l
4、et’s开头的祈使句，其附加疑问句一般用“shallwe”,而以letus开头的祈使句，其附加疑问句则用“willyou”。因为let’s中的us包含听话者（即被请求者），而letus中的us不包含听话者在内。e.g.Let’spracticeourspokenEnglish,shallwe?Letusplayfootballthisafternoon,willyou?5.祈使句表祝愿Successtoyou!Wishyouagoodjourney.Mayyouhaveahappylife.Allowmetoproposeatoasttoourfriendship.【检测】---En
5、glishhasalargevocabulary,hasn’tit?---Yes.____morewordsandexpressionsandyouwillfinditeasiertoreadandcommunicate.A.KnowB.KnowingC.ToknowD.KnownPleasedomeafavor---_____myfriendMr.SmithtoYouthTheaterat7:30tonight.A.toinviteB.invitingC.inviteD.invited______thewebsiteoftheFireDepartmentinyourcity,and
6、youwilllearnalotaboutfirefighting.A.HavingsearchedB.TosearchC.SearchingD.Search---Letmereadthenovelalone,_____?---OK.Goahead.A.willIB.willyouC.shallID.canIPlease____yourbikebeforeyougointoashop.A.lockB.locksC.lockedD.locking____doasyourteachertellsyouto?A.WhyB.WhytoC.WhynotD.HowaboutStandoverth
7、ere_____youwillbeabletoseetheoilpaintingbetter.A.butB.tillC.andD.orWiththegovernment’said,those____bytheearthquakehavemovedtothenewsettlements.A.affectB.affectingC.affectedD.wereaffected--CouldyouturntheTVdownalittlebit?--____.Isi
