Unit-1-Animals-on-the-Farm-Lesson-4-Horses-and-Rabbits-情态动词-优质公开课-冀教三起3下课件

Unit1AnimalsontheFarmLesson4HorsesandRabbits情态动词can,may,must的用法Unit1AnimalsontheFarm1情态动词后接动词原形;没有人称和数的变化;不能单独作谓语,与后面的动词共同作谓语;其否定形式在后面直接加not。Modalverbs情态动词情态动词后接动词原形;Modalverbs2can/cannotmay/maynotmust/mustnotModalverbs情态动词can/cannotModalverbs3can/cannot1.表示能力(会)

MarycanspeakEnglish,butshecannotspeakFrench.2.表示允许(可以)

CanIuseyourdictionary?Ican’tfindmine.3.表示推测(可能)----通常用于否定形式

Hecan'tbeintheoffice.Isawhimgooutjustnow.can/cannot1.表示能力(会)4may/maynot1.表示允许(可以)MayIcomein?2.表示推测(可能)----通常用于肯定形式

Shemaybestillwaitingforus.3.表示祝愿

Mayyouhaveahappyweekend.may的用法:may/maynot1.表示允许(可以)may的用5may/maynot●以may开头的疑问句，其否定回答用can't或mustn't。--MayIgohomenow?--Yes,youmay.No,youcan’t.maynot的用法:may/maynot●以may开头的疑问句，其否定回答6must/mustnot1.must表示必须Youmustdoyourhomeworkfirst.2.must表示一定(肯定性推测)Hemustbeathome.must的用法:must/mustnot1.must表示必须mus7must/mustnot1.mustn't表示禁止(不准；不允许)

Youmustn'tsmokehere.2.以must开头的疑问句，其否定回答要用needn't.--MustIcleantheclassroomnow?--Yes,youmust.No,youneedn't.mustnot的用法:must/mustnot1.mustn't表示禁止(8Whatdothesignsmean?Doyouknow?Youmustnotcycle.Youmustbecareful.Youmustturnleft.Youmustnotenter.Whatdothesignsmean?Doyou9Canyou…?你会/能……吗？Yes,Ican./No,Ican't.是的，我会/能。/不，我不会/不能。Whatcanyoudo?你会/能干什么？Ican…我会/能……Canyou…?Yes,Ican./No,Ic10Canyouswim?No,Ican't.Yes,Ican.Canyouswim?No,Ican't.Yes,11Canyouplayfootball?Yes,Ican.It'seasy!Canyouplayfootball?Yes,Ic12Whatcanyoudo?Icanrunfast!Whatcanyoudo?Icanrunfas13Canyouplayping-pong?Yes,Ican.Canyouplayping-pong?Yes,Ic14Thankyou!Thankyou!15Unit1AnimalsontheFarmLesson4HorsesandRabbits情态动词can,may,must的用法Unit1AnimalsontheFarm16情态动词后接动词原形;没有人称和数的变化;不能单独作谓语,与后面的动词共同作谓语;其否定形式在后面直接加not。Modalverbs情态动词情态动词后接动词原形;Modalverbs17can/cannotmay/maynotmust/mustnotModalverbs情态动词can/cannotModalverbs18can/cannot1.表示能力(会)

MarycanspeakEnglish,butshecannotspeakFrench.2.表示允许(可以)

CanIuseyourdictionary?Ican’tfindmine.3.表示推测(可能)----通常用于否定形式

Hecan'tbeintheoffice.Isawhimgooutjustnow.can/cannot1.表示能力(会)19may/maynot1.表示允许(可以)MayIcomein?2.表示推测(可能)----通常用于肯定形式

Shemaybestillwaitingforus.3.表示祝愿

Mayyouhaveahappyweekend.may的用法:may/maynot1.表示允许(可以)may的用20may/maynot●以may开头的疑问句，其否定回答用can't或mustn't。--MayIgohomenow?--Yes,youmay.No,youcan’t.maynot的用法:may/maynot●以may开头的疑问句，其否定回答21must/mustnot1.must表示必须Youmustdoyourhomeworkfirst.2.must表示一定(肯定性推测)Hemustbeathome.must的用法:must/mustnot1.must表示必须mus22must/mustnot1.mustn't表示禁止(不准；不允许)

Youmustn'tsmokehere.2.以must开头的疑问句，其否定回答要用needn't.--MustIcleantheclassroomnow?--Yes,youmust.No,youneedn't.mustnot的用法:must/mustnot1.mustn't表示禁止(23Whatdothesignsmean?Doyouknow?Youmustnotcycle.Youmustbecareful.Youmustturnleft.Youmustnotenter.Whatdothesignsmean?Doyou24Canyou…?你会/能……吗？Yes,Ican./No,Ican't.是的，我会/能。/不，我不会/不能。Whatcanyoudo?你会/能干什么？Ican…我会/能……Canyou…?Yes,Ican./No,Ic25Canyouswim?No,Ican't.Yes,Ican.Canyouswim?No,Ican't.Yes,26Canyouplayfootball?Yes,Ican.It'seasy!Can