M3U1情态动词基本用法

Modalverbs,IcanspeakEnglish.Youmaygonow.Theworkmustbefinishedassoonaspossible.Shallwestartthemeetingnow?Hewontgowithus.,IcanspeakEnglish.Youmaygonow.Theworkmustbefinishedassoonaspossible.Shallwestartthemeetingnow?Hewontgowithus.,1.Bookingsmustbemadeatleastsevendaysbeforetheyleave.2.Myeyesightisverypoor.Ihavetowearglassesforreading.3.Mustyouplaythepianoatmidnight?,强调主观看法,强调客观需要,偏要，非要,must/haveto,innerdesireoutsideconditionorimposingsomeonetodo,haveto,must,Imuststudyhard.Ihavetostudyhard.,may/might,Youmaytakethisseatifyoulike.2.-May/MightIcomeintotheroomtoseemymother?-Yes,please/Certainly.3.NBAison.hemightbewatchingTVnow.,givingpermission,askingpermission,possibility,can/could,Thecinemacanseat(容纳)1,000people.2.IcouldnotreadsuchaneasybookwhenIwas7yearsold.,ability,ability,-CouldIuseyourdictionary？-Yes,goahead.（或Yes,youcan.但不能说Yes,youcould.4.Could/Canyoutellmehowtogotothezoo?5.Thehuntershavebeenlostfordays.Theycouldstarve.,askingpermission,request,possibility,differencebetween“can”and“beableto”,can表示“能力”时，和beableto相当，许多场合可互换。但当具体到某一次能力如何只能用beableto。Canyouspeakanyforeignlanguages？Areyouabletoworkoutthisproblemwithin10minutes？,differencebetween“can”and“beableto”,大火迅速蔓延到整幢大楼，但大家都逃了出来。Thefirespreadthebuildingquicklybuteverybody_escape.=Thefirespreadthebuildingquicklybuteverybodymanagedtoescape.,wasableto,beableto强调克服困难经过努力实现的事情。,1)Noonecould/wasabletoanswerthequestion.2)Whenhegrowsup,hewillbeabletosupporthisfamily.3)Frankisill.Hehasntbeenabletogotoschoolforoneweek.4)Imsorryfornotbeingabletohelpyouintime.,beableto比can有更多形式。,Fillintheblankswithmust,haveto,may,might,can,could.,1.They_putoffthesportsmeetingbecauseofthebadweather.2.Accordingtothelandlord,I_haveacatinthisapartment.3.We_doeverythingstepbystep.4.Teachers_bepatientenoughwiththeirstudents.,haveto,can/may,must,must,(permission),5.How_youbesostupid?6.Whatawarddidyougetforthesportscompetition?_Ihavealook?7.Jimisntgoodatmathsorscience,buthe_speakEnglishverywell.8.-Whowasthemantalkingwithyourteacher?-Iamnotsure.It_beherbrother.,can,Could/May,can,might,shall,1.ShallIcarryitforyou?2.Shalltheywaitoutside?用于_人称疑问句,表示说话人征求对方的意见或向对方请示，_。,一，三,shall,3.YoushalldoasIsay.4.Youshallfallbehindinyourexamifyoukeepplaying.5.HeshallhavethebookwhenIfinishreading.,用于第_人称陈述句中,表示说话人给对方命令、警告、允诺、威胁或决心等意思。,二、三,should,1.Childrenshouldobeytheirparents.2.IdontknowwhyyoushouldthinkIdidit.3.10.Itsnearlysevenoclock.Jackshouldbehereatanymoment.,advice,prediction,常与what,how,why等词连用，表示意外、惊讶等情绪。这里表竟然,will/would,1.Willyouhavesometea?2.Wouldyouhavesometea?3.Iwilldoanythingforyou.4.HewillsurftheInterneteverynight.7.Hewouldgotothebarafterworkwhenheworkedinthatcity.,request,request,promise,intention,habit,pasthabit,will/would,1.Thewindowwontopen.2.Thisglasswillnotcrackunderheavypressure.3.Ifyouwillreadthebook,Illlendittoyou.4.IfIwereyou,Iwouldbeathiminthematch.,上面哪句话与fishwilldiewithoutwater一致。,Exercises:Choosefromshould,shall,will,wouldtocompletethesentences.,_wesithere?我们坐这儿好吗？_youstayforlunch?你留下来吃午饭，好吗？Oilandwater_notmix.油和水混不起来。_youdomeafavor?你能帮我个忙吗？,Shall,Would,will,Would,Exercises:Choosefromshould,shall,will,wouldtocompletethesentences.,They_beherebynow,Ithink.我想现在他们都到了。I_nevertellyouthesecret.我决不告诉你这个秘密。He_sitthereforhoursdoingnothingatallwhenhewasachild.当他是个小孩的时候他经常坐在那什么也不做。Why_youtalktoherlikethat?你为什么（竟然）这样和她说话？,should,will,would,should,Exercises:Choosefromshould,shall,will,wouldtocompletethesentences.,Thewound_notheal.伤口老不愈合。He_bepunishedifhedoesitagian.。,will,shall,Exercises:,1.-WheresSally?Shemustbe/shouldbeherebynow.-Idontknowwhatshappenedtoher.Maybeshemissedthebus.2.A:Canyouhelpmewiththeseletters?B:Mustwedo/Shouldwedothemnow?Canttheywaituntilthemorning?A:No.Itsalreadytoolate.3.Wewereverysurprised.Tombehavedinsucharudemanner.=WeweresurprisedthatTomshouldbehaveinsucharudemanner.,竟然,4.IfIcantleavemybagshere,whatdoyousuggestmetodowiththem?=WhatshouldIdowiththem?5.Itsadvisabletocheckthatallthewindowsareshutwheneveryougoout.=Youshouldcheckthatallthewindowsareshutwheneveryougoout.6.Regulartrainingisessentialifyouwanttosucceedinathletics.=Youhavetohaveregulartrainingifyouwanttosucceedinathletics.,Exercises:,7.Isuggestitsagoodideatocheckthetimetablebeforeweleave.=Weshouldcheckthetimetablebeforeweleave.8.Inmyopinionitwouldbewrongforthemtomovehousenow.=Idontthinktheyshouldmovehousenow.9.Itistheruletowearahelmetwhenyourideamotorbike.=Youmustwearahelmetwhenyourideamotorbike.,Exercises:,10.Iexpecthellbeherenowbecausehetoldmetoarriveatthistime.=Heshouldbeherenow.11.Weverunoutofmilk.Imustgetsomeinthesupermarket.12.Youdbetternotcarrythatheavysuitcase.Ifyoudo,youmightinjureyourback.,Exercises:,13.Thiscarpetwaspricedat$500,butIcould/wasabletogetadiscountbecauseofthislittlemarkinthecorner.14.Thedaystartedoffmisty,butbythetimewehadreachedthemountainthesunhadappearedandwecould/wereabletoclimbitquitequickly.1