2022年中考英语二轮复习课件 can,could and (be) able to用法详解

can,couldand(be)ableto单击添加副标题汇报人：小明202XWeusecantosaythatsomethingispossibleorallowed,orthatsomebodyhastheabilitytodosomething.Weusecan+infinitive(cando/canseeetc.):Wecanseethelakefromourhotel.‘Idon’thaveapen.’‘Youcanusemine.’Canyouspeakanyforeignlanguages?Icancomeandseeyoutomorrowifyoulike.Theword‘dream’canbeanounoraverb.Thenegativeiscan’t(=cannot):I’mafraidIcan’tcometothepartyonFriday.Youcansaythatsomebodyisabletodosomething,butcanismoreusual:Weareabletoseethelakefromourhotel.Butcanhasonlytwoforms:can(present)andcould(past).Sosometimesitisnecessarytouse(be)ableto.Compare:Ican’tsleep.Tomcancometomorrow.MariacanspeakFrench,SpanishandEnglish.Ihaven’tbeenabletosleeprecently.Tommightbeabletocometomorrow.Applicantsforthejobmustbeabletospeaktwoforeignlanguages.Sometimescouldisthepastofcan.Weusecouldespeciallywith:seehearsmelltastefeelrememberunderstandWehadalovelyroominthehotel.Wecouldseethelake.AssoonasIwalkedintotheroom,Icouldsmellgas.Iwassittingatthebackofthetheatreandcouldn’thearverywell.Wealsousecouldtosaythatsomebodyhadtheabilitytodosomething,orwasallowedtodosomething:Mygrandfathercouldspeakfivelanguages.Weweretotallyfree.Wecoulddowhatwewanted.(=wewereallowedtodo)couldandwasabletoWeusecouldforgeneralabilityandwithsee,hearetc.:Mygrandfathercouldspeakfivelanguages.Icouldseethem,butnotveryclearly.Buttosaythatsomebodysucceededindoingsomethinginaspecificsituation,wenormallyusewas/wereabletoormanagedto(notcould):Thefirespreadquickly,buteverybodywasabletoescape.(notcouldescape)Ididn’tknowwhereMaxwas,butImanagedtofindhimintheend.(notcouldfind)Compare:Jackwasanexcellenttennisplayerwhenhewasyounger.Hecouldbeatanybody.(=hewasgoodenoughtobeatanybody,hehadtheability)butJackandAndyplayedamatchyesterday.Andyplayedwell,butJackmanagedtobeathim.(=hesucceededinbeatinghimthistime)Thenegativecouldn’t(couldnot)ispossibleinallsituations:Mygrandfathercouldn’tswim.IlookedforMaxeverywhere,butIcouldn’tfindhim.Andyplayedwell,buthecouldn’tbeatJack.ExercisesCompletethesentencesusingcanor(be)ableto.Ifcanisnotpossible,use(be)ableto.1Garyhastravelledalot.Hecanspeakfivelanguages.2Ihaven’tbeenabletosleepverywellrecently.3Nicole________drive,butshedoesn’thaveacar.4Iusedto________standonmyhead,butIcan’tdoitanymore.5Ican’tunderstandMark.I’venever________understandhim.6Ican’tseeyouonFriday,butI________meetyouonSaturdaymorning.7AskKatherineaboutyourproblem.Shemight________helpyou.8Youhavetobecarefulinthispartofthecity.It________bedangerous.9MichaelhaslivedinItalyalongtime,soheshould________speakItalianAnswers:3can4beableto5beenableto6can(orwillbeableto)7beableto8can9beabletoCompletethesentenceswithcan/can’t/could/couldn’t+thefollowing:believecomehearrunsleepwait1I’mafraidIcan’tcometoyourpartynextweek.2WhenDanwas16,he100metresin11seconds.3‘Areyouinahurry?’‘No,I’vegotplentyoftime.I.’4Idon’tfeelgoodthismorning.Ilastnight.5