课件高中英语语法情态动词公开课课件

1.Canyoucanacanasacanercanacan?2.Howmuchwoodwouldawoodchuckchuckifawoodchuckcouldchuckwood?3.Howmanycookiescouldagoodcookcookifagoodcookcouldcookcookies?Whatkindofverbaretheunderlinedwords?你可以像装罐工人那样装罐头吗?如果一只土拨鼠会扔木头,那么会扔多少木头呢?如果一个好的厨师能做小甜饼，那么他能做多少小甜饼呢？Theyaremodalverbs.一.Weusemodalverbstotalkabout:1.Ability（能力）2.Obligation（义务）3.Certainty（可能性）4.Permission（允许）5.Makerequests（提出请求）6.Makesuggestions（提出建议）7.Makeoffers（提供帮助）8.Giveadvice（提出意见）1.Ability(能力):LiuXiangcanrunthe110mhurdleracewithin13seconds.can/could:1.can一般表示与生俱来的能力或者一种客观可能性,还可以表示请求和允许。LearningEnglish_____bedifficult.canMancannotlivewithoutair._______Iuseyourbike?Cancan/could:2.在疑问句中，用could可表示请求，语气较委婉。—____Ihavethetelevisionon?—Yes,you_____./No,you_____CouldHeasksifhe____smokehere.couldcancan’t/I’mafraidnotcan/could:3.表示惊异、怀疑、不相信的态度。（主要用在否定句、疑问句或惊叹句中）He’ssuchanicepersonthathe______committhecrime!can’t你怎么会如此地粗心！Howcanyoubesocareless!__________thisbetrue?Cancan/could:4.cannever/can’t……too表示“无论怎样…也不过分”，“越…越好”。你过马路的时候再小心也不为过。Youcan’tbetoocarefulwhilecrossingtheroad.I’msotired!Ihavetodothetrainingforatleast10hoursaday!2.Obligation(义务):…yethemustworkhardtowinthegoldmedal.AlthoughLiuXiangissogiftedinhurdlerace…注意：must可表示“坚持，一定要”（常用于固定句型：ifyoumustdosth.如果你非得要做某事）如果你真的要走，那就悄悄离开。Ifyouleave,doitquietly.mustYourmotherbringsyouupandtakesgoodcareofyou,sowhensheisold,you___lookafterherinreturn.A.canB.mayC.havetoD.mustShiDongpengmightwinamedalattheOlympicGames.Althoughthechanceofwinningamedalissmall,I’lltrymybest!3.Certainty(可能性):1.He_____beathome.2.He_____beathome,forhejustcalledmefromhishome15secondsago.A.mayB.mightC.mustA.mayB.mightC.must情态动词表示猜测是高考热点之一：mustshouldcancouldmaymight（可能性）情态动词+不定式完成式“责备”等多种意义。needhavedoneneedn’thavedoneshoudn’t/oughtn’ttohavedoneshould/oughttohavedonewouldratherhavedone注意：对于现在和将来的推测用“情态动词+动词原形”，对于过去的推测用“情态动词+不定式完成式”。Eg:may/mighthavedone可能已做了can’thavedone不可能做了本需要做但没做本不必做但做了本不该做但做了本该做但没做本想做但没做4.Permission(允许):MayIeatKFCifIwinthegoldmedal?may/might:1.表示许可。表示请求、允许时，might比may的语气更委婉一些。—Might/MayIuseyourcomputer?—Yes,youmay./No,youmaynot/mustn’t.5.Makingrequests(提出要求):Canyouhelpmewithmytraining?Idon’tknowhowtousethisequipment!6.Makingsuggestions(提出建议):Shallwedothetraininginthemorning?It’stoohottotakeexerciseintheafternoon.shall:1.Shall用于第一、第三人称疑问句中，表示说话人征求对方的意见、向对方请示或提供帮助。1.Shallwebeginourlesson?2.Whenshallhebeallowedtoleavehospital?3.ShallIcarrythisbagforyou?shall:2.Shall用于第二、第三人称，表示说话人给对方命令、警告、允诺或威胁。Youshallfailifyoudon‘tworkharder.Heshallbepunishedaccordingtotherule.等我读完这本书，就会给他的。HeshallhavethebookwhenIfinishit.警告威胁允诺7.Makingoffers(提供帮助):Don’tworry,dear,Iwillwashthemrightaway.Mom,mydirtyclotheshavebeenpiledup!Idon’thavetime……8.Givingadvice(提出意见):Youshouldnot/oughtnottoeatsomuchbeforerunning.Howdelicious!!!2.should表示意外或惊讶常译为“居然，竟然”。Ican’tbelievesuchagentlemanshouldbesorudetotheold.我不敢相信这样一个绅士居然对老人如此无礼。should:7.情态动词的做题技巧:1.充分利用句子语境。综观历年高考英语情态动词的考查情况，有相当一部分考题从本质上看都是在考查情态动词在具体语境中的运用，即只要考生能弄清各个被考查情态动词的意思，就可作出正确选择。如：—Lucydoesn’tmindlendingyouherdictionary.—She______.I’vealreadyborrowedone.A.can’tB.mustn’tC.needn’tD.shouldn’t分析：答案选C。既然“我已经借了一本”，据此语境所以“她就没有必要借给我了”。2.根据时间确定时态。即要分清情态动词表推测时涉及的是现在情况还是过去情况。原则上说，若对现在情况进行推测，情态动词后接动词原形或进行式；若对过去情况进行推测，则后接动词的完成式；Thiscakeisverysweet.You______alotofsugarinit.A.shouldputB.couldhaveputC.mightputD.musthaveput分析：答案选D。前文说“蛋糕很甜”，下文“你一定是在里面放了很多糖”，故用“musthavedone”表示对过去情况的肯定推测。对现在或将来的推测常用结构为：情态动词+______________/______________对过去情况的推测常用结构为：情态动词+________________如：dobedoinghavedone（2010江西卷23）Ihavetoldyouthetruth.Ikeeprepeatingit?A.MustB.CanC.MayD.WillA能力提升：高考练兵场（2011江西卷23）It______bethepostmanatthedoor.It’sonlysixo’clock.A.mustn’tB.can’tC.won’tD.needn’tB能力提升：高考练兵场（2012江西卷22）We______haveboughtsomuchfoodnowthatSuziewon'tbewithusfordinner.A.maynotB.needn'tC.can’tD.mustn'tB能力提升：高考练兵场（2013江西卷23）WhenIwasachild,I______watchTVwheneverIwantedto.A.shouldB.couldC.mustD.needB能力提升：高考练兵场Whoistheluckiestguy?ABCDEF（1）你们不准在学校吸烟。Youmustn’tsmokeatschool.(2)现在已是午夜了,你偏要这个时候弹钢琴吗？Itismidnight._________________________?MustyouplaythepianonowTranslatethesentences1.–Whatsortofhousedoyouwanttohave?Somethingbig?--Well,it________bebig—that’snotimportant.A.mustn’tB.needn’tC.can’tD.won’t2.改错Mr.Limustn’thavegonetoShanghaibecauseIsawhimafewminutesago.Bcan’tDothefollowingexercisesMultiplechoices1.---Didthetrainarriveintime?----No.It_______twohoursago.A.musthavearrivedB.oughttohavearrivedC.mustarriveD.oughttoarrive2.MustIdrivetohishouseandpickupthechildren?No,.A.youshouldn'tB.youmightnotC.youneedn'tD.youmustn'tBCSoeasy!Listfivemodalverbs列举五个情态动词Can/could/must/may/might/shall/should/need/dare/dared/will/would/oughttoReviewtheusageofmodalverbsandfinishtheexerciseinthebook.