情态动词讲解与练习

///情态动词情态有cancud,ay(gh,us,haeo,shlshoud,loud,daedaed,needneded,ughto。情动无称数化；能独用必与其的动词原构谓。一、can,old1)表能〔力知、技〕。Canouthshavybo?体〕此可用beabeo代Can有般在和般过式而beabeo有更lnotbeabeocoehsenoon.当示经努才做成某〞应用eabeo,能用Ca。：Heasbeogoohepatyesedayeenngnspeofheheavyan.2)表请和许。CanIgono? -Ye,oucan./No,oucan’时与ay互换。在疑句还用cud,ght代替不过式只是气委婉,能于定和语中。-CoudIcoeoseouooo?3)表客可性客原因成能〕。The’echangdheieabe,oecangobybusnsead.Thishalcanod500peopeatea.4)表推〔讶疑心、不信态〕用疑问、和中。Canhsbeu?Thisca’tbednebyh.二、ma,miht1)表请和许ght比ay语气委不过式否认答复时用ca’t或usn’表“可以禁〞。Mgh/MayIsokenhsoo?-No,ouusn’用MyI..征对许可比拟正和气而用CanI...在语常见。2〕亍使,示。Myousuceed!3)表推、能〔用亍问〕。ght不过式它所示可比ay小。1Heay/ghtbeerybusyno.Youroheray/ghtnotknowheuh.三、mu,haveto1)表必、要。ouustcoenie.在答复引的句如是能用usn〔禁准而用eed’,do’thaveo不〕.-Mutehandnourxecsebooksda? -Ye,ouus.2)ust是话的观看,而haveo那么客观要Must有现在,aveo有多时形。1．hepays’tneeng,Iealyustgono.．IhadookhnIasourage.3)表推、能〔只亍定陈句〕1．Yo’eo’sgoodend,oouustknowhathekesbe.．Youroherustbeangorouno.四、ar,ned1)dare作态词时,用疑句否认句和条件从句中,过去式形式为dared。1．Howdaeousay’muna?．Hedan’tspakEnglshboeuchacod,daeh?．fedaednotgoheehatda,ecoudn’tgethebeuuloes.)ned情动用时,常亍问句否认句肯句一般用,haveo,ouhto,ould代。1Youeed’tcoeoea.2.-NeedInshheokoda? -Ye,ouus./No,ouneedn’3)dare和ned作义动用,有称态和的化在定中dre常带o不式在问句否认句dre面可带o或带o的定式而eed后面能带o的定1.Idaeosimacosshse.2.Hedoe’tdaeo)ane.3.Heneedsonshhshoeokoda.五、hal,shod1)shal用第称,求方意见。Whatshledohsenn?2)shal亍二三人,示话给方的令警、诺威胁。1.oushlalfoudon’tokhad.告)2.HeshlhaehebokhenInsh.(允诺)3.Heshlbepnshd(威胁)六、will,would1)表请、议woud更婉。Wl/Woudoupaseheba,pea?2)表意、望决心。1.Illneerdohatagan.2.Theyakedhmfheoudgoabad.3)wud表过复发的作某倾woud表过习惯比sdto正,且没“已此惯的含。1.ungheacaon,heoudsteeeryoherda.2.Theoundoudnthea.4)表估和。toudbeabouten’cockhnsheethoe.七、houl,htto1)shoud,oughto示“该,ughto示义或任比soud语气重。1.Ishoudhepherbauehesnoube.2.ouoghtoakeceofhebab.2)表劝、议命令。houd,ouhto通用但疑句用shoud。1.oushud/oughtogoocasghtaa.2.ShudIopenhendo?3)表推测 hod,ouhto(观测,us(主观测。1.Heustbehoebyno.(断他到家)2Heoughtoshudbehoebyno.(不太定)3.Thissheeheolustbe.直爽)4.Thissheeheoloughtoshoude.蓄)八、情态动词+不定式完成式〔haveone〕1)can/cud+avedone在定中“来可做实上做事虚拟语气在问或中表对去为疑心或不定,表推。1.oucudhaedoebee,butouddn’tryourbe.〔拟气〕2.Heca’thaebeenohaton.〔测〕3.Cnheaegotheoo?推〕2)ay/ght不定式完式havedoe〕表示过行的测。能亍问中没有拟气用。Mght表的可能比ay1.Heaynothaenshdheok.2.fehadaknheoheroad,eghthaeaedeae.3〕ust+定完式〔aveon〕亍定中表对过行的测意“一、必。疑、否认形用can,an’t代。看1)can/cud+aveone示推。1.ouusthaeeenhelmTianc.2.HeusthaebeenoShanha.4〕shud+定成式havedne〕亍定中表对过行的测。Heoudhaenshdheokbyno。表“应做际上有某其式表某行本该生却生。可与ouhto不式成式havedne互。1.ouoghto/shoudhaehepedh.butouddn’.)2.Shehoud’thaeakenaayyeaungape,orIanedouse.5)neen’t不完成〔aveon〕示本不做实际做某〞。Youneed’thaeeedheoes,ortsgongoan.6)wl不式式〔aveon〕要亍二三称,示已成动或事的测。Helhaeaedbyno.课后练题1)u alhosecohe!ehaeaahngachneodohatsotofhngA)nednthaeahed B)shoudnthaeahedC)ustnothaeahed D)cannotheahed2)Jhnscoeonheetshehghetnhecas;he atngh.A)shoudsudy B)soudhaeuddC)usthaeuded D)usthaeosudy3)Theroomsnaebees;t ceaned.C4,2019,6)A)canthaebeen B)soudnthaebeenC)usnthaebeen D)oudnthaebeen4)Nbodyknoshowpeopestcaeoheesand.They omSouhAercaonas.A)usthaeaed B)canalC)ghthaeaed D)shoudhaeaed5)Myasnotnherbedoomesedayaenoon.She nercasoo.A)shoudhaebeen B)usthaebeenC)ustbe D)shudbe6)Bobadheasongoonourcubuthedn.He hsnd.A)canthaechangdB)oudnthaechangd

C)usthaechangdD)shounthaechangd7)u oonoseelmeeda.twlbeonTVongh.A)needntgo B)hadeernotgoC)soudnoto D)nednthaegone8)e eeereeda,buttddntaie.A)ustecee B)ughtoeceeC)usthaeeceed D)ughtohaeeceed9)halheokonhan,he ohecneaatngh.A)usntgo B)soudnthaegoneC)coudnotgo D)counthaegone10)Eeasaeorcasan.She ae.A)shoudgetup B)ustgetupC)needogetup D)shoudhaegotup1)Iameelngsck. souchchocoae.A)nednthaeeaen B)counthaeeaenC)usnthaeeaen D)soudnthaeeaen12)Iddntsndoutyappcaonomateek,butI .A)had B)ouddoC)shoudhae D)ghthaeo13)akngaonenhedeeedage,Hehoughte omogohh.A)ghthaeaked B)soudskdC)usthaeaked D)shudheaked14)WhenIgotohecnea,hemhadaeadysaed; heeeae.A)oghtoget B)ughtohaegotC)usthaegot D)ustget15)Therodasudd._ atngh.A)ustaned B)usthaveanedC)ustbeaned D)coudhaeaned16)SheanpakqueuntEnglsh.Se _.A)ustbeennheU..A.orsoee B)usthaebeennheU.SA.rsoeieC)shoudhaebeennheU...orsoeie D)MybenheUSA.orsoeie17)oushudbearnndhathesnotsoongash .A)asusdobe B)usdobe C)asusdo D)useo18“edntsehimatheexhboneseda.〞“He _.〞A)usntst B)anthaevsed C)shoudhaegoneose D)ayse19)My yee,ohesesheoudhaeepedbeoeo.A)shoudhaeeceed B)hasecedC)Cudnthaeeceived D)ughtohaeeceed20)I ouaauabepeentorourbhda,butIasshotofone.A)oudaekedoge B)kedogeC)haekedoge D)oudkeoge21“Whee yubel?“Soebody taaybysake.〞A)s,usthaeaken B)s,ustakeC)haebeen,ustake D)s,akes22)What oudappnfhedecorknewouelthata?A)lousuppoe B)ousuppoeC)doousuppoe D)ououdsuppoe23)oees seoehanone.A)can B)ay C)l )shoud24) ouconnuenoureosndacheenewndgeaersuess.A)oud B)l C)My D)houd25)eouhtohepechohernourok, ?A)oghnte B)shoude C)soudntwe D)ouhtoe26)om eerhanoakDckorhep.A)shlknow B)soudntknow C)hasnn D)houdhaenon27)ou ouroohpuedoutbeoetotcopee.A)hadbeergot B)adogeteerC)hadbeeroget D)hadbeerget28)Whenegotohecna,helmhantsaede,soe .A)nednthury B)ddntneedhuyC)neentohury D)nednthaehued29)tasealyerydangeous;ou hmsousl.A)