初一情态动词的讲解与练习

1情态动词一、定义：情态动词必须搭配动词原形一起构成谓语。情态动词没有人称和数的变化。二、考点：情态动词的用法和词义辨析，由情态动词引导的一般疑问句的回答。三、种类：情态动词词义否定形式词义can能够，会can’t不能，不会could能够，会couldn’t不能，不会may可以，可能／／must必须mustn’t不允许，不能shall将，要／／should应该shouldn’t不应该need需要needn’t不必would将会，愿wouldn’t不会，不愿四、用法及主要句型：1.can①表示“能，会，可以”。Canyouplaybasketball?②表猜测，常用于否定句或疑问句，即can’t，表“一定不是”。LiHuacan’tbeintheclassroom.回答：Yes,～can.No,～can’t.CanIhelpyou?——Yes,please./No,thanks.CanIborrowyourbook?----Yes,ofcourse.CanIwriteonthebook?------No,youcan’t\mustn’t.Could\Canyouhelpme?----Yes,ofcourse.\Certainly.\Sure.Could\Canyoutellmethewaytothezoo?2.could①can的过去式IcouldswimwhenIwassevenyearsold.②could开头的疑问句，语气比can委婉。回答：Yes,～can.No,～can’t.（或根据语境）CouldIhaveadrink?Yes,youcan.3.may①表示推测，“可能，也许”，用于肯定句。Eg:Hemaycometomorrow.2②表示请求，“可以”Eg:MayIborrowyourbook?回答：—MayIsmokeintheroom？—Ofcourseyoumay[can]．—No,youmaynot[mustn't，can't]．（语气较生硬）—You'dbetternot．—Pleasedon't．4.should/shouldn’t表示征求对方意见或劝告：1)Heshouldgetupearly.2)Sheshouldn’tplaycomputergametoomuch.3)Youshouldlistentoyourteacher.回答：Yes,～should.\No,～shouldn’t.5.shall用于第一人称(I,we),1)Whereshallwehavedinner?2)Shallwegofishing?-----Allright.\OK.\Goodidea.ShallIopenthewindow?Shallwehavelunchhere?肯定回答：Allright.\OK.\Goodidea.否定回答：Sorry,Ican’t/Ishallnot.6.must①表示“必须，应该”。②表示推测，常用在肯定句中，表“一定”。Eg:Thereissomeoneknockingatthedoor.ItmustbeJim.③否定句中，mustn’t表示禁止，“不允许”。回答：肯定回答用must,否定回答用needn’t=don’thaveto不必要7.need需要肯定句回答用must,否定句回答用needn’t.Youneedn’tcometoschoolsoearly.8.表示征求对方的意见，或建议。“你愿意…吗”Wouldyouliketogoshoppingwithme?回答--Yes,I’dloveto./I’dliketo.No,thankyou.3Wouldyoulikesomethingtoeat\drink?----Yes,I’dlike…练习（）1.youlikesomemilk?A.WouldB.CouldC.Can（）2.Wepicktheflowerinthepark.A.can’tB.don'tC.mustn’t()3.Weshouldmoretrees,andweshouldn’tcutanytrees.A.plantB.plantingC.plants()4.MayIhavesomecoffee?A.Yes,youhave.B.Yes,youcan.C.Yes,certainly.()5.Shallwevisitthefactory?A.Yes,wedo.B.Yes,weshall.B.Allright.()6.Wouldyoulikesomethingtoeat?A.Yes,wewould.B.Yes,I’dlikesomecakes.C.Yes,ofcourse.()7.WhatcanIdoforyou?A.Yes,youcan.B.No,Icandoit.C.Yes，I’dlikesomeoranges.()8.John___cometoseeustonight,butheisn'tverysureyet.A.mayB.canC.hastoD.must()9.They___dowellintheexam.A.canbeabletoB.beabletoC.canabletoD.areableto()10.-MayItakethisbookout?-No,you___.A.can'tB.maynotC.needn'tD.aren’t()11.You___goandseeadoctoratoncebecauseyou'regotafever.A.canB.mustC.dareD.would()12.-CanyouspeakJapanese?-No,I____.A.mustn'tB.can'tC.needn'tD.maynot()13-He___beintheclassroom,Ithink.-No,he___beintheclassroom.Isawhimgohomeaminuteago.A.can;maynotB.must;maynotC.may;can'tD.may;mustn’t()15Eventhetopstudentsinourclasscan'tworkoutthisproblem,soitbeverydifficult.A.mayB.mustC.canD.need()16Heisn'tatschool.Ithinkhe___beill.A.canB.shallC.mustD.hasto()17___Itakethisone?A.MayB.WillC.AreD.Do()18Thechildren___playfootballontheroad.A.can'tB.canC.mustn'tD.must()19You___belateforschoolagainnexttime.4A.mustn'tB.needn'tC.don'thavetoD.don'tneedto()21Hisarmisallright.He___goandseethedoctor.A.hasnottoB.don'thavetoC.haven'ttoD.doesn'thaveto()22-ShallwegoandvisittheHistoryMuseumnextSunday?A.HereyouareB.Sorry,Ican'tC.Yes,pleaseD.Letmetry()23-___Itakethenewspaperaway?-No,youmustn't.You____readitonlyhere.A.Must;canB.May;canC.Need;mustD.Must;must()24___youliketohaveanothertry?A.CouldB.WillC.WouldD.Do()25-Wouldyouliketogoboatingwithus?-Yes,___.A.I'dlikeB.IwantC.I'dliketoD.Ido()26You___worryaboutyourson.Hewillgetwellsoon.A.needn'tB.can'tC.mustn'tD.haveto()27-Mustwedoourhomeworkfirst?-No,you___.Youmayhavearestfirst.A.mustn'tB.needn'tC.maynotD.can't