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objectivesTousemodalverbshaveto/nothavetocan/can’toughtto/oughtnottoTowriteanaccountofatypicalwedding1.Ifafriendgetsaninvitationtoawedding,youcangowithhim/her.2.Yououghtnottogototheceremonybecauseitisonlyforclosefamily.3.Everyonecanattendthereceptionafterwards.4.Indonesiawomendon’thavetocovertheirheads.5.Thebestmanshouldhelpputcrownsontheheadsofthebride.6.Thebridegroomhastoaskthebride’sfatherforhisdaughter’shandinmarriage.7.Aftertheceremony,theguestscanattendaweddingreception.8.Duringthereception,guestscanthrowdishesonthefloorandputmoneyonthebride’sweddingdressforgoodluck.情态动词表示说话人的某种感情或语气，对某一动作或状态的某种态度。表示“需要、可以、必须、应当”等。什么是情态动词？(ModalVerbs)1.haveto1)haveto表示一种客观的需要，意思是“必须，不得不”。如：我想,为参加这些大赛你必须刻苦训练。YouhavetotrainveryhardforthesebigMatches,Isuppose.妈妈不在家，因此我不得不照看商店。Motherisout,soIhavetolookaftertheshop.2)haveto的否定形式是don’thaveto，相当于needn’t。如：Ifyourfatherisrich,youdon’thavetowork.3)haveto与havegotto常可以互换。比较must的用法1)表示主观的义务和必要，主要用于肯定句和疑问句，意思为“必须……，得……，要……”；由must引起的疑问句，肯定回答要用must或haveto，否定回答要用needn’t或don’thaveto，意思是“不必”；must的否定形式mustn’t表示禁止，意思是“不能，不许”。在英国车辆必须靠左行驶。InEngland,trafficmustkeeptotheleft.2)表示肯定的猜测，常用于肯定句中，意思为“一定是，必然……”。她的美容院总是客满，她一定挣了一大笔钱。Herbeauty-salonwasalwaysfullandshemusthavemadeabombthereby.2.can1)(表示能力、功能)能，会他那么高，手能碰到天花板。Heissotallandhecantouchtheceiling.琼现在会开车了。Junecandrivenow.2)(表示可能性)可能，可能会我认为这项工作能提前完成。Ithinktheworkcanbecompletedaheadoftime.3)(表示允许、请求)可以Youcanparkoverthere.Youcanhaveapieceofcakeafteryou’veeatenyourvegetables.4)(表示命令)必须你如不保持安静，就请你走。Ifyouwon'tkeepquietyoucangetout.5)(表示偶然发生的可能性)有时会那里有时容易刮风，特别在春季。Itcanbequitewindythere,especiallyinspring.6)(表示惊讶)究竟；竟至于到底那是怎么一回事?Whatcanitpossiblybe?3.oughtto1)oughtto是一个可以加上to的情态动词其意思与should是一样的，但是oughtto不能用于虚拟语气中表示推测，而should可以2)oughtto更多反映客观情况，表示根据法律，义务“应当”，比should语气强，should表示主观看法，一些建议，劝说。政府应该为失业者开拓更多的工作。Thegovernmentoughttocreatemorejobsfortheunemployed.1.haveto2.don’thaveto3.can4.can’t5.ought6.oughtnottoa)notnecessaryb)necessaryc)notallowed/notpossibled)allowed/possiblee)notadvisablef)advisableMatchtheverbstotheirmeanings.Completethepassagebelowwiththefollowingwords:haveto,don’thaveto,can’t,can,oughtto,oughtnottoWeddingsarehappyoccasionsbutwhenmysistergotmarriedlastyear,mymumandsisterdidnotagreeonanything.Firstitwasthedress.Mymumsaid,“Lisa,you_______wearawhitedress,”andmysisterreplied,“I____________wearwhite.I____wearpinkifIlike.”havetodon’thavetocanNextitwastheinvitations.Mymumsaid,“Lisa,youreally_______inviteSally,”andmysisterreplied,“I____________inviteher---wehavetoomanypeoplealready.”Thenitwastheflowers.Mymumsaid,“you_____havelilies.I’veheardthatthey’rebadluck,”oughttodon’thavetocan’tandmysisterreplied,“OfcourseI___havelilies!Idon’tbelievethey’reunlucky!”Andthenitwasthecake!“Youreally_______haveafruitcake,Lisa,”saidmymum,butLisawantedchocolate.Finally,Itoldthemthattheyreally___________arguesomuchbecauseitmakesmehateweddingsforlife!canoughttooughtnottoWhathappensatweddingsinyourtown/city?Usemodalverbsandexpressionsfromthelessontowriteaboutsomeofthesethings.clothes,reception,ceremony,flowers,presents,songs,food,speechesDiscussourschoolrulesingroups,byusingthemodals:haveto/nothaveto,can/can’t,ought/oughtnotto.Forexample:A:Canyoutellusourschoolrules?B:Yesyoucan’tdyeyourhaircolorful.B:…C:…1.Oneofthefewthingsyou____sayaboutEnglishpeoplewithcertaintyisthattheytalkalotabouttheweather.(2009北京）A.needB.mustC.shouldD.canI.Multiplechoice2.---Isn’tthatAnn’shusbandoverthere?---No,it_____behim---I’msurehedoesn’twearglasses.（2004安徽）A.can’tB.mustnotC.won’tD.maynot3.Thebiggestproblemformostplants,which________justgetupandrunawaywhenthreatened,isthatanimalsliketoeatthem.(2007湖南)A.shan’tB.can’tC.needn’tD.mustn’t4.—Whatdoyouthinkwecandoforouragedparents?—You____doanythingexcepttobewiththemandbeyourself.(2007重庆)A.don’thavetoB.oughtn’ttoC.mustn’tD.can’t5.You______behungryalready—youhadlunchonlytwohoursago!(2008浙江)A.wouldn’tB.can’tC.mustn’tD.needn’t6.Justbepatient.You____expecttheworldtochangesosoon.(2010全国)A.can'tB.needn'tC.maynotD.whether7.I’mafraidMr.Harding______seeyounow.He’sbusy.(2010全国II)A.can’tB.mustn’tC.shouldn’tD.needn’t1.杰克病了，他们不得不改变计划。Jack’sill,sotheyhavetochangetheirplan.2.我讨厌一早就得起床。Ihatehavingtogetupearlyinthemorning.II.Translation3.我能跟你一起去吗?CanIgowithyou?4.你们不可以在这里踢足球。Youcannotplayfootballhere.5.要是你想上大学，就应该多学习。Ifyouwanttogettocollege,yououghttostudymore.6.我认为你应该多给自己一些放松的时间。Ithinkyououghttomakemoretimeforyourselftorelax.GrammarFocus1.情态动词haveto的用法及其与must的比较haveto表示一种客观的需要must表示主观的义务和必要；由must引起的疑问句,肯定回答要用must,否定回答要用needn’t或don’thaveto2.情态动词can/oughtto的用法can表示能，会；可能性oughtto表示应当1.Learnthewordsincommunicationworkshopbyheart2.Readthedescriptionofthepartyanddotheexercises.HomeworkHomeworkWriteeightsentencesgivingadvicetoaforeignerwhoisgoingtoaweddinginyourtown/city.