may和can的区别,may和can在用法上有什么区别
can的用法may和can的区别:
①表示有能力做某事,意为“能、会”.如:
The girl can sing in English.
②表示许可,意为“可以”,如:
You can drive my car to the post office.
③表示推测,意为“也许,可能”.如:
He can’t be your brother, you don’t look the same.
may的用法:
①表示请求,语气比can弱.如:
–May I use your eraser?
– Certainly. But you must give it back to me soon.
②表示推测,意为“也许,可能”.如:
She may be at home. Let’s go to see him.
may 表示说话人的允许, can 表示客观情况的允许。
但在非正式的场合和日常口语中,can 和may互换也是常见的。
can的用法:
①表示有能力做某事,意为“能、会”。如:
the girl can sing in english.
②表示许可,意为“可以”,如:
you can drive my car to the post office.
③表示推测,意为“也许,可能”。如:
he can’t be your brother, you don’t look the same.
may的用法:
①表示请求,语气比can弱。如:
–may i use your eraser?
– certainly. but you must give it back to me soon.
②表示推测,意为“也许,可能”。如:
she may be at home. let’s go to see him.
情态动词的否定式和疑问式:
①否定式:一般在can, may后面加not。如:
you can’t use the bike.
he may not be right.
②疑问式:将can, may提前即可。如:
i’m very tired. may i have a rest?
can you help me (to) study maths?