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1、情态动词大闯关1234挑战来了挑战来了挑战来了挑战来了Are you ready?Go!must“必须”（命令或强制，决心，不可推卸的责任）must提问 -MustIfinishmytaskrightnow?肯定回答：must否定的回答：neednt/donthaveto-Yes,youmust.-No,youdonthaveto/neednt.mustnt“不能、不准”表示禁止做某事使用情景：不能闯红灯 图书馆不能喧哗 酒后不能开车不能玩刀具mustntcrossthestreetwhenthelightareredmustntmakeanynoiseinthelibrarymustntdr
2、iveafterdrinking总结：当表示规则；法律规定；涉及到生命安全；命令等情景时mustntplaywiththeknife.Youmayhurtyourself.must和haveto的区别 haveto：表示因为客观原因而不得不做的事情，翻译为“不得不”must：表示主观的责任和义务，翻译为：必须Studentsmustfinishtheirhomeworkontime.Itsrainingoutside,wehavetostayathome.1根据场景用haveto和must填空。1.Myeyesarenotverygood.I_wearglasses.2.Inmanycount
3、ries,men_domilitary(军事的)service.3.We_walkhomelastnight.Therewerenobuses.havetomusthadto单项选择1.-Mustwefinishgivingouttheposterstoday?-Yes,we_.Itcantbeputoffanylonger.A.canB.mayC.must.单项选择2.-Ididntpassthemathtest.IthinkIhavespenttoomuchtimeplayingcomputergamesrecently.-Iagree.You_playlikethatanymore.A.
4、needntB.mustntC.maynotD.wouldnt单项选择3.Whentrafficlightsarered,we_stopandwait.A.mayB.canC.mustD.mightYouneedcry,dear!有你的快递！need怎么安慰一个哭晕在厕所的女生？Youneedntgotoadoctor.Youdontneedtoloseweight.need：需要为什么会有不同？实义动词情态动词need to doneed do人称？时态？I need to study.He needs to study.need to doneeded to dowill need to
5、do否定：dont/doesnt/didnt need to do need do.否定：need not do sth人称？时态？need sth.Do/Does/Did sb.need to do sth.？need sb.do sth.?Yes,sb.must.No,sb.neednt./dont have to.Yes,sb.do/does/did.No,sb.dont/doesnt/didnt.Do the students need to stay up late?Need the students stay up late?Yes,they do.No,they dont.Yes
6、,they must.No,they neednt/dont have to.121.You_worryabouther.A.neednttoB.dontneedC.dontneedtoD.notneed2.Theresenoughtimeforyoutogototheairport.You_hurrynow.A.shouldB.needntC.mustD.cant3.Tom_somemoneytobuybooks.A.needtoborrowB.needstoborrowC.needsborrowD.needsborrowing4.-WhereisJason?Iwanttotellhimab
7、outtheresultofthesingingcompetition.-Oh,you_.Hehasknownitalready.5.Sheisatough（坚强的）girl.You_worryabouther.needntdont need to6.我需要帮助。_7.学生需要做作业吗？_8.你没有必要这么早来学校。_Ineedhelp.Dostudentsneedtodohomework?Youdontneedtogettoschoolsoearly./Youneedntgettoschoolsoearly.1.表推测，“可能”，“也许”，may的可能性比might大。may&mightSh
8、emaybeintheroom.Imnotsure.Youmightseehimifheisheretomorrow.may&might2.表示请求和允许“可不可以”，might比may语气更委婉.同时，might也是may的过去式。MayIhelpyou?IdliketouseyourrestroomifImay.MayIcomein?Theteachertoldherthatshemightreturnthebookinthreedays.may3.表祝愿。May+主语+动词原形Mayyouhaveagoodday.Mayyousucceedinwinningthefirstprizein
9、thegame.can&could1.表示具备某种能力，“能”，“会”。could是can的过去式。Icanplaytheguitar.IcouldswimwhenIwassevenyearsold.表“能力”时，be able to=can，意义差别不大。如：Ican/amabletogetgoodgrades.区别：1.在词义上，can除表“能”，“会”外，还可以表示“许可”而beableto则不能。如：Youcangonow.2.can只用于一般现在时和过去时；而beableto可用于任何时态例句3.beableto强调通过努力而获得的能力，而can则强调自身已具有的能力例：Thebir
10、dscanflyinthesky.HeisabletosingMy heart will go on afterpracticingitforseveralhours.选择题1.He_singthissonginEnglishafterlearningitforseveralhours.A.canB.isabletoC.willbeableto2.Mary_reachtheapples.A.canB.isabletoC.两者都可以BC2.表委婉请求和允许，could语气比can更委婉。can&couldCouldIuseyourbiketomorrowmorning?Sorry,youcant
11、.shouldhadbetter(not)do“应该”“最好（不）做”Ishouldgohomefirstafterschool.Youhadbetternotsmokehere.=Youdbetternotsmokehere.shall:多用于第一人称 ShallIgohomenow?Shallwegetthebagsdownbeforethetrainstop?wouldlike想要 Iwouldlikeacupoftea.=Idlikeacupoftea.1231.-Mum,_IvisittheMovieMuseumtomorrow?-Imafraidyoucant.Itisclosed
12、onMonday.A.mustB.mayC.shouldD.need2.-Whereareyougoingthismonth?-We_totoXiamen,butwerenotsure.A.needntB.mustC.mightD.mustntBC3.Yourshirtisratherdirty._Iwashitforyou?A.DoB.WillC.HaveD.Shall4.Youworktoomuch.Ithinkyou_takeiteasy.A.hadbetterB.havebetterC.havetoD.areabletoDA填空:5.A:Canyourideabike?B:No,I_.6._youliketohelpme?7._wecallthedoctornow,sheseemstohaveafever.cantWouldShall/Must句子翻译：8.ShallIopenthewindow?9.IcouldplaythepianowhenIwasinprimaryschool.要我打开窗户吗？我在小学的时候会弹钢琴。改错：10.Theweatherisnotgood.Wedbettertostayathome.11.Mymomtoldmethatshemaygobackhomeat9.might1234小测小测小测小测Are you ready?Go!