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《Grammar and usage(1)： Modal verbs： general introduction》优质课教案下载
Step 1: 读一读：（下划线句中情态动词）
Now, many of us can speak English quite well, but a few years ago, we couldn’t.
My brother is able to dive under water for 10 minutes.
You should respect your parents.
I have to finish the work before 7 o’clock.
You must work hard to achieve your life goal.
Shall we carry the books for you?
You needn’t do that if you don’t want to.
The little girl dare not go out alone at night.
Will he pay for me?
Step 2: 学一学： 体会下列各情态动词的用法
Can/ could/ be able to
He can play basketball very well.
Can I use your pen?
Could you give me a piece of paper?
4．Mary can't be in Paris，for I saw her in the town only a few minutes ago．
用法总结：can表示1. 能力2. 请求许可，could语气更加委婉 3. 推测/可能性(只用于否定句和疑问句)
比较下面两个句子，体会can与be able to用法的不同
My brother can play table tennis.
6． My brother is able to dive under water for 10 minutes.
表示“能够”之意时，
Can 强调 主语本身具有的一种能力;
be able to 强调 在特定情景中努力做成某事.
选择：＊He didn’t agree with me at first, but I ___was able to___ persuade him.
＊She __could___sing when she was young. (was able to; could)