canshouldmaywillmustwouldmight19/21/2024canshouldmaywillmustwouldmight情态动词modal verb29/21/2024情态动词modal verb29/27/2022Discussion What will you do or say when1. you are late for class2. you see an old man carrying a heavy box3. you see some kids playing on the road1. May I come in?2. Can I help you?3. You mustnt play on the road.39/21/2024Discussion What will you do omay & mightwill & wouldneed / darecan & couldmustshall & should情态动词49/21/2024may & mightwill & wouldneed / What can I do? I can swim. What can he do? He can swim. What can they do? They can swim. 1. 情态动词+ V原2. 无人称和数的变化3. 独立进行句型转化 59/21/2024What can I do? I can swim. Whacan & couldcan的主要用法的主要用法A._：Thegirlcandanceverywell.B._：Canthenewsbetrue?C._:CanIsithere?表示能表示能力力表示推测表示推测,可能可能性性（多用于疑问、否定句中）（多用于疑问、否定句中）No,itcantbetrue.表请求或允许表请求或允许,“可以可以”69/21/2024can & could can的主要用法表示能力表示推测,can & couldcould的主要用法A._IcouldreadwhenIwasthree.FathersaidIcouldgooutwithmyfriends.Weallknewthattheyoungmancouldntbeadoctor.B._Couldyoulendmeyourbike?CouldIuseyourbike?表示过去表示过去的能力的能力,许可和推测许可和推测(肯、否、肯、否、疑疑)(cancould)在疑问句中表示委婉的请在疑问句中表示委婉的请求求79/21/2024can & couldcould的主要用法 表示过去的能力, exercise1.IsawJohnintheparkthismorning.It_behim.HehasgonetoHongKong.A.cantB.canC.must2.Lucyiswalkingthedoginthepark.She_be.Listen!Sheissingingloudlyinherroom.A.cantB.mustntC.neednt3.Look!IstheyoungladywearingabluedressGrace?No,it_beher.Sheispickingupmysisterattheairport.A.cantB.mustntC.can89/21/2024 exercise1. I sawmay & mightmay的主要用法的主要用法A._MayIcomein?Yes,please./No,youmustnt/cant.B._ButImaybewrong.Theguestmayarrivethisafternoon.C._Mayyousucceed!Mayyouhaveagoodjourney!表示请求、允许表示请求、允许;比比can正式，正式，“可能，也可能，也许许”表示猜测表示猜测(肯，否肯，否)表示祝愿表示祝愿;语气较正式语气较正式99/21/2024may & might may 的主要用法 表示请求、允许may & mightmight的用法的用法1._Shesaidthathemighttakeherbike.2._MightIsmokehere?Youmightgetsomehelpfromherifshewerehere.也可以表示现在的可能性、许可，但是比也可以表示现在的可能性、许可，但是比may表表示的可能性更小；且示的可能性更小；且might可以用于虚拟语气可以用于虚拟语气表示过去的可能和允许表示过去的可能和允许,“可能，也可能，也许许”(may-might)109/21/2024may & mightmight 的用法也可以表示现在的可能 exercise1. Whatwilltheweatherbeliketomorrow? .A.mustB.mightC.shall 2. _Itakephotohere? No,youmustnt.Dontyouseethesign“NOPHOTOS”? A.WouldB.MayC.Must3.Wow!Anothergift!Whatsinthebox?Imnotsure.It_beapairofsportsshoes.A.mustB.mayC.will119/21/2024 exercise1. What will themust 1._You mustbecarefulnexttime.You mustnttakephotoshere.2._Youhaveworkedhardallday.You mustbetired.3.must引导的疑问句引导的疑问句MustIfinishthehomeworktoday?Yes,youmust/haveto. No,youneednt/donthaveto.表示义务表示义务/命令命令/必要，必要，“必须必须”mustnt“禁禁止止”表示推测，只用于表示推测，只用于肯定肯定句句129/21/2024must 1. _表示义务canmaycouldmustmight推测可能性由大到小139/21/2024canmaycouldmustmight推测可能性由大到小1 exercise1.We_driveafterdrinking.Itsverydangerous.A.canB.mayC.mustnt2.Look!Thewomanattheschoolgate_beourheadmaster.No,it_beher.Sheisholdingameetingintheofficenow.A.must;cantB.must;mustntC.can;neednt3.I_gonow,orIllmissmytrian.A.canB.mightC.must149/21/2024 exercise1. We _ driwill & would1._Iwilltellyousomethingimportant.我将要告诉你一些重要的事我将要告诉你一些重要的事。WillyoutellherthatImhere?请您告诉她说我在这儿，好吗请您告诉她说我在这儿，好吗?2._Willyoucomehere,please?Willyoujoinusforadrink?will是助动词是助动词也是也是情态动词情态动词,用于构成将来时是用于构成将来时是助动词助动词,用于表用于表“意志意志/决心决心/意愿意愿”是情态动词。是情态动词。（助动词）（助动词）（情态动词）（情态动词）表示请求，与表示请求，与you连用连用159/21/2024will & would1. _wiwill & would“请求，许可请求，许可”would表委婉不是表过去表委婉不是表过去1._He wouldnt help me yesterday.She asked if I would go with them.2._Wouldyoutypethis,please?=Willyoutypethis,please?Teacherwouldntallowit.=Teacherwontallowit.表示过去的意表示过去的意愿愿willwould169/21/2024will & would“请求，许可” would表委婉不是 exercise1._yougivemeahand?(will/would)2.WhydidntyoucomeTomspartylastnight?Iwantedto,butmymothersimply_notmeoutsolateatnight.A.willB.wouldC.should3.Johnpromisedhisdoctorhe_notsmoke,andhehadneversmokedeversince.A.wouldB.mightC.couldWill / Would179/21/2024 exercise1. _ you gishall & should1._PerhapsIshallpayavisittoEnglandthiswinter.可能今年冬天我会去英国观光。可能今年冬天我会去英国观光。shall用于构成将来时是助动词用于构成将来时是助动词用于征求意见用于征求意见,是情态动词是情态动词,一般用于第一一般用于第一人称和第三人人称和第三人称称2._Shallwegobytrain,Tom?Tom ，我们乘火车去，我们乘火车去好吗？好吗？Shallhecomein?要他进来吗？要他进来吗？3._Youshallnotentermyhouse.用于第二、三人称，表示命令、警告用于第二、三人称，表示命令、警告189/21/2024shall & should1. _shall & should1._Dinnershouldbereadybynow.Sheshouldbehereataminute.2._Youshouldkeepyourpromise.Heshouldworkharder.3._Itsstrangethatheshouldbeabsent.表示义务表示义务/建议建议/责任责任,“应该应该,必须必须”表示可能性、推测表示可能性、推测,“可能，应该可能，应该”表示情感、意志表示情感、意志,“竟然竟然”must 表示规章制度方面You mustnt smoke here.should 表示道德规范方面You should be here on time.199/21/2024shall & should1. _ exercise1.Itstoohot._Iswiminthelake?No,you_.Thatstoodangerous!A.Should;cantB.Need;mustntC.Could;cant2.Theroomissodirty._wecleanit?OK.A.WillB.ShallC.WouldD.Do209/21/2024 exercise1. Its tooneed 1._Youneedntsaysorrytome.Youneedntcomeifyouarebusy.2._NeedIcometomorrow?No,youneednt./Yes,youmust.情态动词，在否定句中表示情态动词，在否定句中表示“不必不必”情态动词，在疑问句和肯定句中，表示情态动词，在疑问句和肯定句中，表示“需需要要” He needs a book. I need to go back home now. I dont need to go back home now. Do you need to go back home now? Yes, I do. / No, I dont. The windows need cleaning/to be cleaned.needsth/todosth/doing(tobedone)实意动词219/21/2024need 1. _情态动词，在dare1.情态动词情态动词情态动词情态动词:敢于，竟敢，多用于敢于，竟敢，多用于否定、疑问、条件句否定、疑问、条件句中。中。Idarenotaskhimthesecondquestion. HowdareyousayImunfair?2.行为动词行为动词行为动词行为动词:胆敢，敢于胆敢，敢于daretodosthHedared to dothatandsomethingevenworse.Hedoesntdaretoanswermyletter.229/21/2024dare1. 情态动词: 敢于，竟敢，多用于否定、疑问、条件THANK YOU239/21/2024THANK YOU239/27/2022