情态动词动词can的用法
（1）表示能力，意为“能，会”。
I can swim. 我会游泳。
（2）表示可能性，意为“可能”，常用于疑问句和否定句中。
He can't be in the classroom. 他不可能在教室里。
（3）表示请求或允许，意为“可以，能够”。
Can I use your pen? 我可以用你的钢笔吗？
forget（4）表示惊讶、不相信等（用于疑问句和否定句），意为“会，可能”。
This can't be true. 这不是真的。
练习题
一、选择题
1. I _____ follow you. Would you please repeat it?
A. can't
B. mustn't
C.needn't
D. shouldn't
2.－I forget to bring my dictionary. Could I use yours? －Yes, you _____.
A. can
B. must
C. could
D. should
3.－Can I have a look at your photos. please? －_____.
A. Sure, here you are.
B. Don't mention it.
C. I can't agree with you.
D. I'm sorry to hear that.
4.－Would you like to go for a bike on Sunday afternoon?
－_____. I haven't been outdoors these days. I can't wait.
A. Sorry, I can't.
B. Sure. I'd love to
C. Not at all
D. Forget it
5. I can't go to the movies this time._____ －All right.
A. Can you go?
B. How do you like it?
C. What are you going to do?
D. How about another time?
一、1-5 AAABD
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