情态动词1九年级英语课件
日期:2010-12-19 12:36
would,youmay/canNo,youcanNo,ought等.1.表示能力can/could(现在时/过去时)IcansingEnglishsongsCanyousingEnglishsongs?IcouldsingEnglishsongsattheageoffive注意:can和beableto的区别1.Beableto可用于各种时态WehavebeenabletotalkinEnglishTheywillsoonbeabletotalkinEnglish2was/wereableto表示过去一次性设法作成某事.Themanwasabletorunaway=Theman_______________runaway=Theman______________runningawymanagedto反意词:failtodosucceededin2表示许可CanItakeaseathere?MayItakeaseathere?CouldIborrowyourbicycle?自强而弱Can?May?Could?肯定回答 否定回答Yes,youmustn’t/can’t/maynotSure/OK/…I’mafraidyoucouldn’tBecause…3表示猜测Maybe(可能是) mustbe(一定是)Mustn’tbe(不一定是) can’tbe(一定不是)表示对过去的推测Look,情态动词情态动词:情态动词本身有一定的含义,必须后面紧跟动词原形(除ought)情态动词没有人称和数的变化.初中阶段我们主要掌握:can(could),should,must,但不能单独作为句子的谓语,may(might),youcan’tYes,need,thelightisoffintheroomDannymusthavegottobed(mustbeinbed)情态动词+现在完成时Could和might的用法(1).是can和may的过去时(2)特殊性Couldyoutellmewhethertheywillcomeheretomorrow?HemayarrivesoonLet’ssetthetable,
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