您好,欢迎访问三七文档
当前位置:首页 > 商业/管理/HR > 资本运营 > 高二英语情态动词推测用法讲解课件
情态动词推测用法•一、用法•从高考及平时各类考试情态动词的推测用法来看,主要有must,should,can(could),may(might)几个词,现对它们的用法按可能性从大到小排列列表如下:一般式:must/should/can/could/may/mightdosth.进行式:must/should/can/could/may/mightbedoingsth.完成式:must/should/can/could/may/mighthavedonesth.注:对现在和过去的状态进行推测则分别将dosth.和havedonesth.改为“be+表语”和“havebeen+表语”形式。•二、关键点拨•1.表推测时,might不是may的过去式,could不是can的过去时,而是表示might/could的可能性比may/can还小,所以,上述情态动词的过去式并不表示对过去的情况进行推测。•2.should表示根据事物内在发展的规律、事情发展的必然性得出的结论,表示“某人(某事)按道理应该(理应)……”。•3.can/could常用于否定句和疑问句中表示推测,但在表示“有时候可能”或“从理论上讲”时,也可用于肯定句中。•4.may/mightnot用于否定句中表“可能不”,而不是“不可能”。•三、实例助记•1.现在(正在进行)的动作或状态•Thereshouldn’tbeanydifficultyaboutpassingtheroadtestsinceyouhavepracticedalotinthedrivingschool.(2005上海)因为你在驾校已经进行了大量的实习,按道理你通过路考是没有任何问题的。•Helenmaygoonthetripwithus,butsheisn’tquitesureyet.(2005安徽)海伦可能会和我们一起去旅行,但她现在还不确定。•TheWorldWideWebissometimesjokinglycalledtheWorldWideWaitbecauseitcanbeveryslow.(2005浙江)由于万维网有时可能速度很慢,所以人们有时戏称之为WorldWideWait。•Someoneisknockingatthedoor.Whocanitbe?有人在敲门。可能是谁呢?•Hurryup!Theymustbewaitingforusattheschoolgate.快点!他们一定在校门口等我们呢。•2.过去(正在进行)的动作或状态•—Tomisneverlateforwork.Whyisheabsenttoday?汤姆从不上班不迟到。为何他今天没来?•—Somethingmusthavehappenedtohim.(2005江西)他一定发生了什么事。•Iwasonthehighwaywhenthiscarwentpastfollowedbyapolicecar.Theymusthavebeendoingatleast150kilometersanhour.(2005重庆)我当时正在公路上行驶,突然这辆小汽车超过,后面跟着一辆警车。他们当时一定是在以至少每小时150公里的时速行驶。•—DoyouknowwhereDavidis?Icouldn’tfindhimanywhere.你知道大卫在哪里吗?我到处找不到他。•—Well.Hecan’thavegonefar—hiscoat’sstillhere.(2005湖北)噢。他不可能走远的——他的外套还在这儿。•Ican’tfindmydictionary.LiHongmayhavetakenitaway.我找不着字典了。李红可能拿走了。•1.He______havecompletedhiswork;otherwise,hewouldn’tbeenjoyinghimselfbytheseaside.(2005北京卷)•A.shouldB.must•C.wouldn’tD.can’t•2.Thiscakeisverysweet.You______alotofsugarinit.(2005辽宁卷)•A.shouldputB.couldhaveputC.mightputD.musthaveput•3.—IsJohncomingbytrain?•—Heshould,buthe______not.Helikesdrivinghiscar.(NMET2002)•A.mustB.canC.needD.may•4.MyEnglish-Chinesedictionaryhasdisappeared.Who______havetakenit?(2003上海春季)•A.shouldB.mustC.couldD.would•5.—WhencanIcomeforthephotos?Ineedthemtomorrowafternoon.•—They______bereadyby12:00.(NMET1998)•A.canB.shouldC.mightD.need•6.—Isn’tthatAnn’shusbandoverthere?•—No,it______behim—I’msurehedoesn’twearglasses.(NMET2004)•A.can’tB.mustnotC.won’tD.maynot•7.—Excuseme.IsthistherightwaytotheSummerPalace?•—Sorry,Iamnotsure.Butit______be.(2004湖北)•A.mightB.willC.mustD.can•8.MysistermethimattheGrandTheatreyesterdayafternoon,sohe______yourlecture.(2000上海)•A.couldn’thaveattendedB.needn’thaveattended•C.mustn’thaveattendedD.shouldn’thaveattended•9.Sorry,I’mlate.I______haveturnedoffthealarmclockandgonebacktosleepagain.(2000北京春季)•A.shouldB.canC.mightD.will•10.It’snearlyseveno’clock.Jack______behereatanymoment.(NMET1995)•A.mustB.needC.shouldD.can
本文标题:高二英语情态动词推测用法讲解课件
链接地址:https://www.777doc.com/doc-4396884 .html