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1Lesson10情态动词问题层级图不知道如何完成情态动词题目目标层级图能够完成情态动词题目LV3操作课前诊断1.Intoday'sinformationage,thelossofdata________causeseriousproblemsforacompany.5’M2A.needB.shouldC.canD.must2.Samuel,thetallestboyinourclass,________easilyreachthebooksonthetopshelf.A.mustB.shouldC.canD.need3.Ilovetheweekend,becauseI________getupearlyonSaturdaysandSundays.A.needn'tB.mustn'tC.wouldn'tD.shouldn't4.---Can'tyoustayalittlelonger?---It'sgettinglate.Ireally________gonow.Mydaughterishomealone.A.mayB.canC.mustD.dare5.---IamsureIsawBrianintheparkthismorning.---You________beimaginingthings.HeleftforAmericalastnight.A.needB.canC.mustD.shall课中讲解一.情态动词本意LV3操作1.常见情态动词本意(1)must①表________，其肯定回答用________，否定回答用________或________.---MustIfinishtheworktoday?---Yes,youmust.---No,youneedn’t/youdon’thaveto.②否定mustn’t表示________Youmustn’tspeaklikethattoyourmother.Youmustn’tleavetheroom.③表________（常用于固定句型ifyoumustdo……)Ifyoumustsmoke,atleastyoucouldsmokeoutside.Ifyoumustleave,doitquietly.Whymustyoubuythatcar?(2)can,could①表________Someofuscanusethecomputernow,butwecouldn’tlastyear.②表________，could比can语气更委婉。---CanIcomein?3---Yes,youcan.(3)may和might①表________或________，might比may的语气更委婉。---MayIhaveaglassofbeerhereplease?---Certainly,youmay./No,youmustn’t／maynot.②表________，might比may的语气更不确定。Hemighthavesometrouble.③may表________，采用部分倒装语序：may+主语＋动词原形……Maytheforcebewithyou.(4)shall，should①should表________Youshouldkeepyourpromise.②should表________Itseemssuchapitythatanhonorednameshouldbecommercializedlikethis.③shall表________，用于第一、三人称作主语的疑问句中。Whenshallhecometomeetyou?Shallwebegin？④shall表________（常用于第二、第三人称）。Heshallbepunishedifhebreakstheschoolrules.(警告）Youshallsticktoyourpost.(命令)(5)will,would①表________Theysaidthattheywouldhelpus.②表________，常用于第二人称的疑问句中，would比will更委婉。Wouldyoulikesometea?Will/WouldyouhelpmewithmyEnglish?【精讲精练】1.Doctorssaythatexerciseisimportantforhealth,butit________beregularexercise.A.canB.willC.mustD.may2.Accordingtotheairtrafficrules,you________switchoffyourmobilephonebefore4boarding.A.mayB.canC.wouldD.should3.---CouldIborrowyourdictionary?---Yes,ofcourseyou________.A.mightB.willC.canD.should4.---YoumustbelookingforwardtoyourtripbacktoSydney.---Yes.I________waitanylonger.A.can’tB.mustn’tC.needn’tD.shouldn’t5.Johnpromisedhisdoctorhe________notsmoke.Andhehasneversmokedeversince.A.mightB.shouldC.couldD.would6.---Can’tyoustayalittlelonger?---It’sgettingdark.Ireally________gonow.Mydaughterishomealone.A.mayB.canC.mustD.dare2.情态动词的推测义(1)must推测义表________Youmustbehungryafteralongwalk.---She’snotpickingup.---Thenshemustbedriving.(2)can,could推测义表________a.在肯定句中表推测的是________Thatcouldbeourwayout!Itwillbesunnyinthedaytime,butitcouldrainlateronthisevening.b.在否定句中表推测的是________---Someoneinourclasshaswonthefirstprizeinthecalligraphycompetition!---Itcan’tbeyou.c.在疑问句中表推测的是________---Couldyoubeserious?(3)may,might推测义表________5Shemaybethebestdentistintown.【精讲精练】1.Liza________notwanttogoonthetrip—shehatestraveling.A.willB.canC.mustD.may2.ItisusuallywarminmyhometowninMarch,butit________berathercoldsometimes.A.mustB.canC.shouldD.would3.You________behungryalready—youhadlunchonlytwohoursago!A.wouldn’tB.can’tC.mustn’tD.needn’t4.---Thetrafficisheavynow,soMike________comelate.---Let’swaittenmoreminutes.A.canB.needC.mayD.shall5.---Idon’treallylikeJames.Whydidyouinvitehim?---Don’tworry.He________come.Hesaidhewasn’tcertainwhathisplanswere.A.mustnotB.neednotC.wouldnotD.mightnot6.---Someoneisknockingatthedoor.IsitEmily?---It________beEmily.ShehasgonetoCanada.A.mustB.can’tC.needn’tD.may二.情态动词+havedoneLV3操作1.musthavedone表示________Itmusthaverainedlastnight,forthegroundiswet.2.couldhavedone表示________Hecouldhavepassedtheexam,buthewastoocareless.3.shouldhavedone表示________否定形式：shouldn’thavedone表示________Youshouldhavegotupearlier.Youshouldn’thavetoldhimaboutit.4.may/mighthavedone表示________---WhathashappenedtoGeorge?---Idon'tknow.Hemayhavegotlost.5.wouldhavedone表示________Iwouldhavetoldyouallabouttheboy'sstory,butyoudidn'taskme.6Withoutyourhelp,Iwouldn'thaveachievedsomuch.【精讲精练】1.Judgingfromhisworriedface,heknewthathe________havehadsometrouble.A.wouldB.willC.needD.must2.Ella________atthecarcrashscreeninNewYorklastSunday;shewastravellingwithmeinHawaiithen.A.shouldn’thaveappearedB.couldn’thavedoneC.wouldn’thaveappearedD.mightnothaveappeared3.---WhenIfirstgottoHarvard,myawkwardEnglishbroughtmegreattrouble.---Oh,dear,it________astruggleforyoutokeepupwithotherstudents.A.mightbeB.canbeC.couldhavebeenD.musthavebeen4.---IhavewontheEnglishSpeechContestandcanhaveatriptoBeijingforfree.---Congratulations!You________workedveryhardpreparingforthecontest.A.mustB.shouldC.musthaveD.shouldhave5.Themissingchildrenhaven’tbeenfoundyet.Somethingterrible________tothem.A.mayhappenB.mighthavehappenedC.musthappenD.shouldhavehappened【小试牛刀】1.Listen,Mary________havedoneit.She'sbeenwithmeattheshopallday.A.wouldn'tB.shouldn'tC.needn'tD.couldn't2.Driversaresupposedtolimitthespeedinneighborhoodsbecausechildren________beplayingthere.A.shouldB.mustC.mayD.would3.Ifyou________haveacigarette,chooseaseatinthefirstrowofthesmokingsection.A.shoul