ModalVerbs情态动词
FourteenModalauxiliariesCan---couldMay---mightWill---wouldShall---shouldMustNeedDareOughttoUsedto
MainpointsAbilityandPossibility(表能力和可能)PermissionandRefusing(许可和不许)ObligationandNecessity(义务与必然)Predictionandpredictability(预测与推测)Willingness,intensionanddetermination(意愿、意图与决心)
Warm-uptasks1.Advocatesofstudyingabroadbelievestudentswillreachnewlevelsofinterculturalunderstandingfarexceedingwhatthey________beabletoaccomplishjustathome.willB.would C.can D.could2.TimothyRayBrown,thefirstmancuredofHIV，initiallyoptedagainstthestemcelltransplantationthat_______history.couldhavelatermadeshouldhavemadelaterC.mightmakelaterD.wouldlatermake
Ability(能力)andPossibility(可能)★can,could,beabletocan,could,may,might,
1.Ability:can/could/beabletocan:could:beableto:Shecouldplaythepianowhenshewassix.Theywereabletogeteverybodyoutoftheburningbuilding.Canyoucallbacktomorrow？Wecanpasstheexamafter4monthsofstudyEnglishgrammar.presentorfuturepastall-purpose(通用)(generalandspecific)(onlygeneralifpositive)(specific)
You’ll?be?able?to?get?a?taxi?outside?the?station.I?haven’t?been?able?to?get?much?work?done?todayShe’d?love?to?be?able?to?play?the?piano.
Can,couldorbeableto?Edisonalwayswonderedwhyhens______hatchchickenswhilehe____________.couldwasnotabletoAbigfirebrokeoutinABChotelyesterday.Luckily,everyone__________runoutofthebuilding.wasabletoBeabletoreferstomanagedtodoit.
2.Possibility:couldmay/might1)could,may,might(用于肯定句):time:certainty:Wherearemykeys?Theycould/may/mightbeinthecar.Icould/may/mightgotothepartytonight.Wherewashelastnight?He_______________havemissedhistrain.could,maymight:presentandfuturecould＞may＞mightcould/may/mightcould/may/mighthavedone:past
2)Can(innegativequestion)Itcan’tbetrue.Canth