情态动词考点（I）1关于情态动词我们要知道1没有人称,数的变化2不能单独作谓语，必须与不定式一起构成谓语考点一：can与could用法1.能力：can表示现在的能力，could表示过去的一般能力；beableto有更多的形式，其中was/wereableto表示过去的具体能力（即实施了过去某一具体的行为），相当于managedtodo.翻译句子，并说出句中情态动词的含义Hecouldspeakfourforeignlanguageswhenhewasyoung,butnowhecanspeakonlyone.___________Therewasabigfireinthehouse,buthewasabletoescape._________________Iamstarvingtodeath.Icaneattwobowlsofricenow.__________________Ifyouhaveagoodsleep,youwillbeabletoworkoutthisproblem._______________2.许可：can可以代替may表示许可，could可以代替might表示许可，cannot表示不可以。CanIuseyourmobilephoneforacall?Heaskedmeifhecouldtakethebookoutofthelibrary.在疑问句中可以用could/might表示更加委婉的语气。例如：Could/MightIaskyousomething,ifyouarenottoobusy?Yes,youcan/may_.No,I’mafraidnot_.3.习惯用语：cannot…too…无论怎样…也不过分cannot…enough无论怎样…也不过分Cannothelpdoing情不自禁做某事can’t…+比较级再…不过了翻译句子：当你过马路的时候，你再小心也不为过。分别用cannot…too…/cannot…enough______________________________________________________________________________________________________________________________________________________________________那部电影再糟糕不过了。_____________________________________________________________这姑娘忍不住哭了。___________________________________3.推测：详见第3张学案考点二：may与might用法1.许可：请求别人允许自己做某事，might比may的语气委婉；自己允许别人做某事，通常用may而不用might。----May/MightItakethismagazineout?----Yes,youmay./No,youmustn’t.2.习惯用语：maywell很可能may/mightaswell最好，不妨…May…do/be..祝愿…翻译句子：你很可能是对的________________________________________________我们不妨去看一下吧____________________________________________________愿你天天有进步__________________________________________________________3.推测：详见第3张学案考点三：must与haveto用法1.must①表必须，用于肯定句和疑问句；。②表示偏偏，偏要2.must与haveto区别：①must表示主观愿望或要求；haveto表示客观所迫，意为“不得不”②mustn’t表示禁止，千万不要；don’thaveto=needn’t不必翻译句子，并说出句中情态动词的含义Justwhenwewerereadytogoawayforholidays,thebabymustcatchacold.____________Thereisnobushere,andyouhavetogoonfoot.___________BecauseitisSundaytoday,wedon’thavetogotoschool.__________MustIgoatonce?----No,youneedn’t.___________Thechildissleeping.Youmustn’tmakeanynoise.___________3.推测：详见第3张学案达标训练（一）1.Doctorssaythatexerciseisimportantforhealth,butit_____beregularexercise.AcanBwillCmustDmay2.Ihavetoldyouthetruth.____Ikeeprepeatingit?AMustBCanCMayDWill3.You____parkhere!It’sanemergencyexit.Awouldn’tBneedn’tCcouldn’tDmustn’t24.Justbepatient.You_____expecttheworldtochangesosoon.Acan’tBneedn’tCmaynotDwillnot5.You____buyagift,butyoucanifyouwantto.AmustBmustn’tChavetoDdon’thaveto6.----_______Itakethebookout?----I’mafraidnot.AwillBMayCMustDNeed7.Oneofthefewthingsyou___sayaboutEnglishpeoplewithcertaintyisthattheytalkalotabouttheweather.AneedBmustCshouldDcan8.Ican’tleave.ShetoldmethatI___stayhereuntilshecomesback.AcanBmustCwillDmay9.Naturally,afterItoldherwhattodo,mydaughter______goanddotheopposite!AmayBcanCmustDshould10.----ShallIgiveyouarideasyoulivesofaraway?----Thankyou._________AItcouldn’tbebetterBOfcourseyoucanCIfyoulikeDIt’suptoyou.二、词语填...
