高一英语Unit3Celebration导学案

详细内容

e this afternoon.
2)表示请求或允许，多用在口语中，意为“__________”等。
―Can/Could I go now?
―Yes, you can.（回答语中不能用could）
3) 表示惊异、怀疑、不相信的态度。（主要用在否定句、疑问句或惊叹句中）
　　Can this be true? ______________________
　　How can you be so careless! ___________________
　　This cannot be done by him. __________________
4)在变否定句时，直接在后加上“not”,可缩写成_________或___________, 但不能写成cann’t。例如：
(变成否定句) He can swim. → _______________________
3 ought意思是______________后面跟带有 to 的动词不定式否定式为_________________。(C级)
You ought to read these books if you want to know how to repair the motorcar.
____________________________________________
You ought to bring the child here.
_____________________________________________
You ought not to walk alone at night. _____________________________________________
注意： ought to和should的区别：
　　1.ought to语气略强。 2.should较常用。
　　3.ought to在美国英语中用的很少，而should却相当常用。
4.ought to属正式用语。
练一练：(C级)
1The man in the office____________be Mr. Black because he went home
just now.
A. mustn’t B. may not C. can’t D. needn’t
2---Can you go surfing with us this afternoon?
----I’d like to , but I ________ look after my sister at home , because my mother is ill.
A. need B. must C. have to D. should
3----Can I take this book out of the reading room?
------______. Please read it here.
A. CertainlyB.No, you needn’t
C.No, you mustn’t D.No, you may not
4　----_____ you help me answer the telephone
----OK.
A. Can B. Should C. Need D. Must
5 Tom is young but he ____ fly a kite by himself.
A. can B. may C. Need D. must
6 -----Could I cross the street here?
　-----Of course you _____.
　A.could B.can C.are able to D.will
7-----_______ we attend the party?
-----No, you needn’t. You are free.
A.Must B. Can C.May D. Shall
StepIII Do the exercises on page 82----1.2.
the lowest grade
"Professor, I did the best I could on this test. I really don't think I deserve a zero.""Neither do I. But that's the lowest grade I'm allowed to give."
学生：“教授先生,我这次考试已经竭尽全力了.我真的觉得我不应该得零蛋.”老师：“我也是.但是这已经是我能给的最低分了！”
小结反思：这几个情态动词的用法你掌握了吗？
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