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1、★精品文档★Unit1FestivalsaroundtheWorld（GrammarandUsefulStructures）Unit1FestivalsaroundtheWorld（GraarandUsefulStructures）Teachingais1．Todiscoverandlearntousesoeusefulwordsandexpressions.2．Getthestudentstostudytheuseofodalverbs.DifficultpointsHowtouseproper
2、odalverbsaccordingtotheconcreteandauthenticsituations.IportantpointsTheeaningandcorrectuseofeachpairofodalverbs:canandcould,ayandight,willandwould,shallandshould,ustandcan’tStep1waringupAswenow,the2008olypicsiscoing.Showtwopictures:LiuxiangandyaoingSa
3、ysoethingabouttheusingodalverbs.2016全新精品资料-全新公文范文-全程指导写作–独家原创13/13★精品文档★____________________________________________________________________Step2Lead-inT:Looatthepicture,theaniscarryingapileofboos.Sohecancarryheavyboos.Hewantstoentertheroo,buthecouldn
4、’topenthedoorbyhiself.Soheisaingarequesttoasforhelpfrothewoanbysaying“couldyouopenthedoor,please?”(Theteacherwritesthethreesentencesontheblacboard.1.Sohecancarryheavyboos.2.Hecouldn’topenthedoorbyhiself.3.couldyouopenthedoor,please?)T:Looatthethreeoda
5、lverbsineachsentenceandtrytogettheireanings.____________________________________________________________________Step3Explanation1.canandcould1)表示能力（ability），指有能力做某事，意为“2016全新精品资料-全新公文范文-全程指导写作–独家原创13/13★精品文档★能够”。例如：注意：表示现在，将来“能够”可用beableto替换。表示过去“能够”并
6、成功了只能用was/wereableto,不能用could。例如ygrandaisovereighty,butshecan/isabletoreadwithoutglasses.Wecan/willbeabletotalabouttheatterlater.Italedwithherforalongtie,andatlastIwasabletoaeherbelievee.(不能用could)2)表示请求（request）或允许（perission）。意为“可否”、“可以”。could比can更有礼
7、貌，在此不是can的过去式。canyouwaitaoentplease?Liz,canyoudoeafavor?Excusee,couldyoutellethewaytothestation?Iwonderifyoucouldhelpe.(request)----couldIuseyourphone?----yes,ofcourse.youcan.DoyouthinIcouldborrowyourbie.(perission)3)表示可能性（possibility）2016全新精品资料-全新公文范
8、文-全程指导写作–独家原创13/13★精品文档★a.can表示泛指的“可能”，并非说话者主观认为的可能性，即并非说话者的主观猜测。Accidentcanhappentoanydrunendriverb.表示说话者主观猜测，只能用与否定句或疑问句中。例如：Itcan’tbeyfather.HeisnowinEngland.----canitraintoorrow?----No,itcan’t.2.ayandight1）表示可能性（possibility）,用于对现在，过去或将来的推测
