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《unit 1 festivals around the world（grammar and useful structures）》由会员上传分享，免费在线阅读，更多相关内容在应用文档-天天文库。
1、Unit1FestivalsaroundtheWorld（GrammarandUsefulStructures） Unit1FestivalsaroundtheWorld（GrammarandUsefulStructures） Teachingaims 1．Todiscoverandlearntousesomeusefulwordsandexpressions. 2．Getthestudentstostudytheuseofmodalverbs. Difficultpoints Howtousepropermodalverbsaccording
2、totheconcreteandauthenticsituations. Importantpoints Themeaningandcorrectuseofeachpairofmodalverbs:canandcould,mayandmight,willandwould,shallandshould,mustandcan’t Step1warmingup Asweknow,the2008Olympicsiscoming. Showtwopictures:LiuxiangandYaoming Saysomethingaboutthemusingm
3、odalverbs. ____________________________________________________________________ Step2Lead-in T:Lookatthepicture,themaniscarryingapileofbooks.Sohecancarryheavybooks.Hewantstoentertheroom,buthecouldn’topenthedoorbyhimself.Soheismakingarequesttoaskforhelpfromthewomanbysaying“Could
4、youopenthedoor,please?” (Theteacherwritesthethreesentencesontheblackboard.1.Sohecancarryheavybooks.2.Hecouldn’topenthedoorbyhimself.3.Couldyouopenthedoor,please?) T:Lookatthethreemodalverbsineachsentenceandtrytogettheirmeanings. _________________________________________________
5、___________________ Step3Explanation 1.canandcould 1)表示能力（ability），指有能力做某事，意为“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”并成功了只能用was/wereableto,不能用could。例如 Mygrandmaisovereighty,butshecan/isabletoreadwithoutglasses. Wecan/willbeabletotalkaboutthematterlater. Italkedwithherfo
6、ralongtime,andatlastIwasabletomakeherbelieveme.(不能用could) 2)表示请求（request）或允许（permission）。意为“可否”、“可以”。Could比can更有礼貌，在此不是can的过去式。 Canyouwaitamomentplease? Liz,canyoudomeafavor? Excuseme,couldyoutellmethewaytothestation? Iwonderifyoucouldhelpme.(request) ----CouldIuseyourphone?
7、 ----Yes,ofcourse.Youcan. DoyouthinkIcouldborrowyourbike.(permission) 3)表示可能性（possibility） 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。 Accidentcanhappentoanydrunkendriver b.表示说话者主观猜测，只能用与否定句或疑问句中。例如： Itcan’tbemyfather.HeisnowinEngland. ----Canitraintomorrow? ----No,itcan’t.
8、 2.mayandmight 1）表示可能性（possibil
