can和may的用法区别Can 的用法：（1）“can”表达能力句型 can + V （=be able to + V）例：I can do it in another way.（=I am able to do it in another way.）（我能以别的方法来做这件事。）例：He said he couldnt walk any step farther.（=He said he was unable to walk any step farther.）（他说他再一步也走不动了。）解说 如例所示“can”在表达能力时可以和“be able to”通用，如果要以完成时表达能力，通常只能使用“be able to”。例：Since that accident, he has been unable to leave the house.（自从那次意外事件，他就一直无法离开家。）（2）“can”表达许可例：Can I use your telephone?（我可以借用你的电话吗？）Yes, of co
