2023学年完整公开课版八上M11Unit3

Unit3Module11Arethesebehaviorsright?

Whatwillyoudoifyouareinthesesituations?

whensomeoneslipsonabananapeelyawning(打哈欠)whilesomebodyistalkingtoyousmokinginapublicplacetalkingloudlyinatheatreusingcellphoneinareadingroomlaughingandwhistlingYoumustsayMr.orMrs.Whenyoumeetsomeoneforthefirsttime.Youcantakeitaway.Youmustn'tbreakanything.Youneedn’twait!Readthesentencesandpayattentiontotheunderlinedparts.⑴must表示主观义务，意思是“必须”。由must引起的疑问句，肯定回答用must,否定回答用needn’t或don’thaveto(不必)。

Imustfinishtheworkbeforenine.--MustIfinishtheworkbeforenine?---Yes,youmust./No,youneedn’t.情态动词must的用法⑵mustn’t表示禁止，意思是“不可以，不要”。由may引起的疑问句，肯定回答用may，否定回答用mustn’t。

Youmustn’tcomelatetomorrow.—MayIhandinthepapernexttime?—Yes,youmay./No,youmustn’t.两者都表示必须，但must侧重于说话者的主观看法，认为有必要或有义务去做某事，haveto侧重于客观需要，含有“不得不，被迫”之意。Allpassengersmustwearseatbelts.

所有乘客都要系安全带。Mybikewasbrokenyesterday,soIhadtowalktoschool.昨天我的自行车坏了，所以我只能走路去学校。must和haveto的区别注意：在表示客观需要时一般用haveto(不得不)，而不用must。

It’srainingheavilysowehavetostayathomeanddosomereading.

用于否定句时，must的否定式mustnot(mustn’t)表示“一定不要，不允许”；而haveto的否定式donot(don’t)haveto表示“不必”（=needn’t）。Youmustn’ttellhimaboutit.（可能是秘密）Youdon’thavetotellhimaboutit.（他可能知道了或者没有必要让他知道）()—Ican’tstopsmoking,doctor.—Foryourhealth,I’mafraidyou______.(2011贵州安顺)A.may B.can

C.haveto D.need[解析]句意“--医生，我不能戒烟。--为了你的健康，恐怕你不得不”。may意为“可以”、can意为“能够”、need意为“需要”均不符合句意。C表示允许，意思是“可以，能够，许可”；可用于肯定句、否定句和疑问句中。其否定形式是cannot(can’t)，表示“不能，不可以”，语气弱于mustnot(mustn’t)。情态动词can的用法Youcan’tputthemilkfirst.(没有禁止的含义)CanIhavealookatyourphoto?我可以看一下你的照片吗？Practice()1.—CanIgofishingwithyou,Dad?

—No,you______.You______stayathomeanddoyourhomeworkfirst.

A.won't;mayB.can't;mustC.shouldn't;oughtD.needn't;shouldB()2.—

CouldIlookatyournewcomputer?—Yes,ofcourseyou_______.A.couldB.canC.willD.mightB()—______Iswimhere?—I’msorry.Children______swimalonehere.(2012年广东省)A.Must,can’tB.May,mustC.Can,mustn’tD.Can’tcanC中考链接()—Dad,thebreadisnotenough.Iamstillhungry.______Ihavesomethingmore?—Butthere’snothinginthefridgenow.(2011四川绵阳)A.MustB.NeedC.WillD.Can[解析]考查情态动词的用法。must意思是“一定，必须”；need意为“需要”；will意思是“将要”；can意思是“可能，可以”。根据句子“Iamstillhungry.我仍旧很俄”可推断“我可以再吃点东西吗”，故选D。Dneed作情态动词表示“需要”，可用于肯定句、否定句和疑问句中。其否定形式是neednot(needn’t)比较常用，表示“不需要”或“不必要”。Isshewantsanything,sheneedonlyask.如果她要什么，说一下就行了。Youneedn’twait.你不必等待。need的用法sth.

①sb.+needtodosth.sth.todosth.Ineedsomehelp.Ineedtosleep.needtimetoworkharder.need还可以用作行为动词，有人称和数的变化），意思是“需要”。()1.Tom_______somemoneytobuybooks.A.needtoborrowB.needstoborrowC.needsborrowD.needsborrowingB()2.You_______theretoday.A.needn’tgoingB.needn’ttogoCdon’tneedtogoD.don’tneedgoingCPracticeB()3.—MustIfinishthatworktoday?—No,you_____.Youmayfinishitintwodays.A.mustn’tB.needn’tC.can’t1.You_____listentoyourteachercarefullyinclass.2.We________crosstheroadifthetrafficisbusy.3.He______beintheclassroom,becausetheteacherandotherstudentswaithimoutside.4._____Iborrowyourbikeforanhour?Ihavetogobackhomenow.Fillintheblanksusingcan/can’t/must/mustn’t.mustmustn’tcan’tCan()1.—MayIgooutnow,Dad?—No.You_____letyourmotherknowfirst.(2011安徽)A.canB.mayC.needD.mustD中考链接()2.—MustIlearnallthesewordsbyheart?—No,you______.It’llbefineifyoucopytheminyourexercisebooks.(2011山东泰安)A.needn’t B.can’t C.shouldn’t D.mustn’tA()3.—CanIborrowyourruler,please?—Yes,you______.Butyoumustreturnittomebeforelunchtime.【2013江苏徐州】A.haveB.canC.mustD.usedtoB()4.—MustIturndowntheradionow?—No,you_______.(2012广西桂林)A.mustn’t B.needn’t C.can’t D.won’tB()5.—CanIparkmycarinfrontofthebuilding?—No,you________.【2013江苏淮安】A.won't B.can't C.needn't D.couldn'tB()6.—MustIstartnow?—No,you________.

(2013湖南娄底)A.mustn'tB.can'tC.needn'tC()7.—Canwerunacrosstheroadnow?—No,we______.Wehavetowaituntilthelightturnsgreen.(2013山东菏泽)A.needn'tB.mustn'tC.couldn'tD.shouldn'tB()8.Children_______sit

inthefrontseatofacar.It’stoodangerous.【2014重庆】A.needB.needn’t

C.mustD.

mustn’t

DWriteandspeakmustmustn’tcancan’t

FamilyrulesAreyourhomerulesthesameordifferent?HomerulesthesamedifferentmustgetupearlymustgotobedearlyPairworkmustn’tplaycomputergamesmustn’twatchTVinbedmustwashhandsmusttakeoffshoesmustn’tstayoutlatemustn’tsmokeTalking

schoolrulesrulesintheclassroom/library/ontheplaygroundCompletethesentenceswithmustormustn’t.SchoolrulesYou_______belateforschool.You_______eatinthelibrary.You_______rideyourbikeintheplayground.You_______doyourhomework.You_______listentotheteacher.mustn’tmustn’tmustn’tmustmustLookatthepicturesanddescribethemonebyone.Listentoateenagertalkingabouthislife.Checkthethingshemustormustn’tdo.MustMustn’tcleanupbedroomonceaweekwashupafterdinnerstayoutafter9p.m.dohomeworkbeforegoingoutwashhandsbeforedinnerplaymusicloudlyafter10p.m.√√√√√√Listenagain.Whattwothingsdoeshesayhecando?Hecangooutwithhisfriendsatweekends.2.Hecanplaymusicbefore10o’clock.Completethesentenceswiththewordsandexpressions.Let’spracticebaseballcapchesssetchopsticksdictionarypresent1.Useyour_________tolookupanywordsyoudon’tunderstand.dictionary2.MostChinesepeopleeatnoodleswith_________.3.Jennycouldn’twaittoopenherbirthday_________.chopstickspresents4.Hethinksit’scooltowearhis__________back-to-front.5.Where’smy________?Let’splayagame.baseballcapchesssetbaseballcapbikechesssetchocolatechopsticksdictionaryfishandchipslitterphotovideogamePlayagame.Chooseawordoranexpressionfromtheboxanddescribeittotheclass.Theclassguesseswhatitis.A:Manypeoplehaveone.B:Isitachessset?A:No.Youuseittogettoplaces.C:Isitabike?A:Yes.A:It’sveryuseful.B:Isitabook?A:Yes.

Butitlookslikethicker(厚)thanthegeneralone.C:Isitadictionary?A:Yes.chopsticksbaseballcapWhatpresentswillyoubringwhenyouvisitafriendorfamily?DoyouknowwhatthetraditionalpresentsareintheWest?Aroundtheworldchocolatehampercakesandbiscuitswineflowers1.WhatpresentmustyoubringinBritain?2.Whatpresentmustn’tyoubringinGreece?ReadandanswerFlowers.Whiteflowers.Doyouknow?在讲法语的地区不要送菊花,因为只有在葬礼时才使用菊花。在拉丁美洲有些国家，把菊花看成一种“妖花”，只有人死了，才在灵前放菊花。在德国，如果你应邀去作客，千万不要送女主人红玫瑰，因为它是赠送情人的礼品。给前苏联一些国家的人送花，结婚日最好向新娘赠送白色或粉色的鲜花，因为它象征着纯洁。送黄色鲜花时要慎重，因为它意味着变节。红色鲜花象征爱情和赞美。另外，花束必须由奇数组成奇数在这些国家是吉利的象征。在巴西，绛紫色的花主要用于葬礼，因此，千万不要送巴西人绛紫色的花。如果到芬兰、瑞典等北欧国家，要是应邀到主人家里作客，一定要给女主人带几束单数的鲜花，最好是5枝或7枝。到英国人家作客，赠送女主人的鲜花，忌送百合花，因为百合花意味着死亡。亦忌赠黄玫瑰，他们认为此花象征分离。GivingadvicetoforeignguestswhoarevisitingaChinesefamily.Whatmustth