unit 3 the world online grammar 导学案

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1、Unit3TheworldonlineGrammar导学案Studyingtask:GrammarandusageStudyingaims:1.Learningaboutsomebasicinformationaboutauxiliaryverbs2.Summarizingusagesofcommonandimportantauxiliaryverbs.Self-education(自主学习):Step1:Lead-inQ:Whatareauxiliaryverbs(助动词)？助动词是用来构成其它动词的时态、语气和语态的

2、词，自身没有含义，不可单独作谓语。Step2:Pointouttheauxiliaryverbsineachsentenceandunderlinethem.1.Hedoesn'tlikeEnglish.2.Heissinging.3.Hehasgotmarried.4.HewassenttoEngland.5.Doyoulikecollegelife？6.DidyoustudyEnglishbeforeyoucamehere？7.Docometothepartytomorrowevening.8.Hedidknowth

3、at.Teamwork(合作探究):1.be(am，is，are，was，were，been，being)(1).Lucyisverykind.(2).Thesmallanimalsarekeptinthecages.(3).Heisgivingalecture.(4).Myhomeworkhasbeenfinished.(5).Iamtogoabroadonbusinesstomorrow.归纳总结:1)be作为系动词表示主语性质、状态或客观存在等意思。2)“be+不定式”表示“计划、安排；义务；命令”等未来的动作或状

4、态。3)“be+现在分词”构成各种进行时态。4)“be+过去分词”构成被动语态。5)be用于have/has/had后构成完成时态。2.do(does，did)(1).Then，whydoeshecomehere？(2).Hedidn’tattendthemeeting.(3).Youlikepopmusic，don’tyou？(4).Youdoknowalotaboutcomputers.(5).NeverdidIseesuchastrangeman.归纳总结:1)do作为助动词时的时态、人称和数的变化有do，does

5、，did三种形式。2)“do+主语+动词原形”构成疑问句。3)“do+not+动词原形”构成否定句。4)“do(+not)+主语”用于附带/反意问句。5)“do+动词原形”用于强调(加强语气)。6)“Never(Only)等+do+主语+动词原形”用于倒装句3.have(has，had，having)(1).Ihaveneverseensuchastrangeman.(2).CanIhavemyhaircutnow？(3).Heoftenhashisassistanthelphimdoit.归纳总结:1)“have+过去

6、分词”构成现在完成时态；“had+过去分词”构成过去完成时态2)“have+宾语+done”表示使某事情被做或请某人做某事；“have+宾语+do”表示让某人做某事。4.modalverbs(情态动词)(shall，should，will，would，can，could，may，might，must，need，dare)(1).Ok，Ishalldowhatyousaid.(2).WhereshallImeetyou？(3).Youshallgivemeacigarette，orIshalltelltheboss.(4)

7、.Youshouldworkharder.(5).Willyougivemeacigarette？(6).Ok，Iwilldoit.(7).Oftenatnightshewouldhearalonglowwhistle.(8).CanIhelpyou，sir？(9).Iamcheckingout.Couldyougivemethebill？(10).Ofcoursewecanwait.(11).Ican'thelpthinkingofit.(12).---MustIgowithyou？---No，youneedn't.(

8、13).Youmustn'tforgetyourmedicalcard.(14).Itmusthaverainedyesterday.(15).Itmustbeslipperyoutsidenow.(16).Youneedn'thavetoldmethatmuch.(17).Idarenotsayitisugly.(