作业帮 > 英语 > 作业

can 与be able to

来源:学生作业帮 编辑:神马作文网作业帮 分类:英语作业 时间:2024/11/14 07:19:30
My father hopes you ( ) come to my home. A.will can B.are can C.can will D.will be able to
can 与be able to
解题思路: 掌握can与be able to的用法区别
解题过程:
My father hopes you ( ) come to my home.
A.will can B.are can
C.can will D.will be able to
同学您好,本题选D。本题考查的是can与be able to的用法区别。
句意:我爸爸希望你可以来我家。
be able to与 can意思接近,都可以表示“能”,其用法如下:
⑴两者既可表示泛指的能力,也可用来指具体的能力,有时可以互换。如:
Tom can / is able to swim. 汤姆会游泳。
⑵can没有人称和数的变化,后加动词原形。只有一般现在时can和一般过去时could。如:
I can swim.
She can swim.
I could swim when I was five years old.
She could swim when she was five years old
⑶can表示许可,意思是“可以”,口语中常代替may。例如:
Can / May I help you?
⑷could 较can 委婉客气的向对方提出要求、请求,这时不表示过去。
Could you please tell me how to use the computer? 请你告诉我怎样用电脑好吗?
⑸be able to do sth根据主语不同、时态不同有am, is, are, was, were, will be 等形式。例如:
Will you be able to come this evening?
No one was able to answer this question.
⑹be able to可与情态动词连用,而 can不能。
I shall be able to speak English well.
通过以上的讲解,首先排除A和C,can不可以用于将来时态中;选项B也不正确,can不可以喝be动词连用;根据知识讲解中的⑸可知,正确答案为D。
同学您好,关于这个知识点您明白了吗?如有问题请留言。
最终答案:略