初三英语语法复习情态动词_行为动词课件 35页

11情态动词（Modalverb） 情态动词modalverbscanmaywouldcouldmustshouldmightwillneedoughtto Introduction情态动词表示说话人对动作或状态的各种观点和态度，如需要、猜测、意愿或怀疑等。情态动词有词义，但不完全，是所谓的“辅助性”动词，在句中不能单独充当谓语。can/couldmay/mightmust/haveto/oughttoneed/will/wouldshall/should can表示请求，允许，现在的能力和猜测。________Igonow?(请求)You_____parkyoucarhere.(允许)She_____speakthreelanguages.(现在的能力)Thenews_____notbetrue.(猜测)can,could,may,might的主要用法ReadandrememberLookandsayCan/Maycancancan could表示比can更客气的请求,把握不大的猜测。还可能表示过去的能力,但不指已经做过的某事的能力。________Ismokehere?(请求比can更客气)You_______beright,butIdon’tthinkyouare.(把握不大的猜测)Whenhewasyoung,he______work24hourswithoutrest.(过去的能力)ReadandrememberCouldcouldcouldLookandsay Choosetherightanswer1.________yourepairmycar？I______notstartit.A.Would；wouldB.Must；mustC.Can；canD.May；may2.________sheridewhenshewasthreeyearsold？A.CanB.CouldC.NeedD.May3.-Whoisthemanoverthere？IsitMrLi？　-No，it________behim.MrLiismuchtaller.A.mustn’tB.maynotC.can’tD.needn’t4_______youtellmehowI_______gettotheNo.19MiddleSchool?A．Do；canB．Can；couldC．Could；canD．Could；could5.You_______givemeitnextweekifyouhavenotimetomorrow.A.mayB.couldC.needD.will 1)I_________(shall/will)seeyoutomorrow.2)We________(shall/will)gotoCenturyParkthisSunday.shall/should/oughtto的主要用法：Readandremembershall/willShallshallshall/will1)_____(Shall/Will)wedance?2)Let’sgotohaveapicnic,_____(shall/will)we?Shall与第一人称I,we连用表将来。Shall用于第一人称征求对方的意愿。Lookandchoose tidilyintheschoolbuildingS1:Shouldtheboydresslikethis?S2:No,heshouldn’t.Heshoulddresstidily.12Lookandsay anoiseinthelibraryintheclassroom45theschooluniform3Lookandsay 情态动词should一般不应被认为是shall的过去式，其主要用法如下：1.表义务，意谓“应该”。Weshoulddoexerciseeveryday.Youshouldbrushyourteethbeforegoingtobed.Weshouldn’tstayupsolate.Readandremember 2.用于表示推测的词，意谓“可能”。如：Theyshouldarrivesoon.3.shall的过去时态,如：Weaskedifweshouldhelpher.(should否定式是shouldnot或其缩写形式shouldn’t.)should是情态动词，意为“应该”，表示应该做某种事情，或者表示现在应承担某种责任或义务，有时表示一种推测。Readandremember MedicineforMrLeeMrLeeshould/oughtto…MrLeeshouldn’t/oughtn’tto…GivesomeadvicetoMrLee.Lookandsay MedicineforMsJonesMsJonesshould/oughtto…MsJonesshouldn’t/oughtn’tto…GivesomeadvicetoMrsJones.Lookandsay MedicineforMrCollinsMrCollins…GivesomeadvicetoMrCollins.Lookandsay ★oughtto后接动词原形，表责任或义务，译为“应该，应当”.★oughtto可用于否定句,其否定形式可缩略为oughtn’t.oughtto一般认为与should意思相近,其主要用法如下：Readandremembereg.Yououghttogotoseethedoctor.Weoughttostartatonce.eg.Yououghtnottosmokesomuch.Yououghtnot(oughtn’t)tosmokesomuch. Wemust/mustn’t…Wemustnotridebicycleshere.Wemustnotwalkacrosstheroad.LookandsayWemustturnleft. must/haveto的主要用法eg.1)Wemustobeyrules.2)Hemustkeepquietinthelibrary.must表必须，必要。mustnot/mustn’t译为“不应该”。eg.1)Youmustn’twastewater.2)MayItakethisbookout?No,youmustn’t.(不，不行。)Readandremember eg.---MustIgotomorrow?---Yes,_________________./No,you____________________.Readandremembermust/I’mafraidsoneedn’t/don’thavetoLookandsaymust用于一般疑问句时，其肯定答语应用。Yes,youmust或I’mafraidso,其否定答语应No,youneedn’t或No,youdon’thaveto. 1.现在式为have(第三人称单数用has)toeg.MyparentshavetogotochurchonSundays.Myunclehastostartworkat8am.2.过去式为hadtoeg.Wehadtopay5yuanforthebook.Didhehavetocomebacklastnight?3.将来式will/shallhaveto4.完成式为have/has/hadhadtohaveto的含义与must相似，它有各种形式，随have的变化而定。其变化与行为动词have相同。Readandremember 1Mum:Wouldyoulikesome________________?Kitty:No,thanks.Idon’tlike__________.I’dratherhavesome___________________.2Mum:_____________________________________?Kitty:Yes,please._________________________.colacolaorangejuiceWouldyoulikesomericedumplingsIlikericedumplingsLookandsay 3Mum:_____________________________________?Kitty:Yes,please._________________________.4Mum:_____________________________________?Kitty:__________________________________________________________________________.WouldyoulikesomedumplingsIlikedumplingsWouldyoulikesomemooncakesNo,thanks.Idon’tlikemooncakes.I’dratherhaveahamburger.Lookandsay S1:Wouldyoulikesome_____?S2:Yes,please.Ilike…/No,thanks.Idon’tlike…I’dratherhave…Lookandsay I________haveameetingtomorrowafternoon.will,would的主要用法：would是will的过去式。Readandrememberwill表将来意图。will表示意愿。willYouneed’thelpme.I______doitmyself.willTheyaskedusifwe______gotherefirstnextday.wouldwould可表婉转请求,语气较will委婉。 eg.1)Ineedtobuyeggseveryweek.2)Heneedstotakethemedicinethreetimesaday.3)Maryneededtocomeyesterday.4)Doessheneedtotakeherraincoat?need的主要用法：Simon,you______doyourhomeworktoday.Leaveitfortomorrow.needn’ttoB)notneedtoC)don’tneedD)don’tneedtoReadandremember★need作为实义动词时，后带to的动词不定式，有现在时第三人称词尾-s,过去分词-ed.Lookandchoose eg.1)Heneedn’tgotothepartythisevening.2)Needhegooutfordinner?You________worryaboutdifficulties.Wewillallhelpyou.A)needn’tB)needn’ttoC)don’tneedD)notneedReadandremember★need作为情态动词,后接动词原形，多用于否定句和疑问句中。Lookandchoose eg.1)Mymumneedssomemilkandbread.2）Mymumdoesn’tneedanymilkandbread.Tom_______anyhelpbecausehecanfinishtheworkontimehimself.A)doesn’tneedtoB)needtoC)doesn’tneedD)needn’ttoReadandrememberLookandchoose★need后跟名词，只能是实义动词的用法。 eg.Needhetellyouwhattodo?疑问句的否定回答：No,youneedn’t.疑问句的肯定回答：Yes,youmust.-Mum,todayisFriday.MustIfinishmyhomeworknow?-No,you______.Youmayhavearestfirstandfinishittomorrow.A)mustn’tB)can’tC)maynotD)needn’tReadandrememberLookandchoose★need作为情态动词使用时不用在肯定句中，在肯定句中要用must,haveto,oughtto,should等来表示。 12行为动词（Actionverb） 行为动词actionverbs情态动词后必须加行为动词（或加助动词表示猜测）。Readandremember 英语中动词可以分为：实意动词和非实意动词。一般实意动词，也称为行为动词。行为动词可以分为及物动词和不及物动词，可以单独作谓语。非行为动词包括各类助动词，如情态动词，系动词和do，did等等，不能独立构成谓语。比如：hit是实意动词，因为“打”是作为一个真实动作而存在，must，can等不是实意动词，本身并没有真实的动作存在，要加上实意动词后才能构成谓语。Readandremember 一般,根据不同时态，行为动词相应地在肯定，否定和疑问句中要与be动词，do/does/did，have/has等助动词连用。Hedidn’tworkinthehospital.Doeshegotoworkonfooteveryday?Theywerehavingadiscussionyesterdayafternoonwhenyoucalled.Haveyoufinishedyourprojectyet?Readandremember 情态动词（Modalverbs）行为动词（Actionverbs）Theend