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模块四 Module IV Modern life《Grammar and usage(2)： Modal verbs： comparisons》最新PPT课件优质课下载
Teaching aims
1.Students can learn that modal verbs.
2.Master the usage of the modal verbs:
1.)talking about ability, obligation, certainty or Permission
2.)making requests ,suggestions, offers and giving advice.
shall/should/ought to
1.shall :表示许诺，表示命令
My father has made a promise that I shall receive a gift at my birthday.
All the students shall be seated before the papers are handed in .
表示征求对方意见，希望得到对方肯定的回答
Shall the driver pick you up after the conference?
2.should :竟然
Though they are poor, they should bring me some food.
Should have done 应该做还没有做
竟然已经做了某事
3.ought to / ought not to （不应该）
will /would/used to
1. will 个人意愿
If you will go to the cinema with me, please call me up .
(否定句）门窗的打不开，机器运转不开
The door won’t open .
The machine won’t operate.
2.would 过去常常做某事
He would walk after supper on the campus
个人意愿