as...as sb could与 can有什么不同
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as...as sb could与 can有什么不同
as...as sb could 这个一般用在句尾,做动词的补语,表示尽可能adj./adv.的去做某事
例子 she is running as fast as he could.
而can是情态动词 经常放在谓语动词前面构成整体的谓语结构
参考:
can(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 couldn't 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 course you can.(可以呀,当然可以.)
No,I'm afraid you can't .I'm waiting for a long distance call from Shenzhen.(不好,我想不好,我正在等深圳要打进来的长途电话.)
再问: 对不起,我是说as as sb. could 和 as as sb. can是否有差别
再答: as as sb. could 和 as as sb. can非要说却别的话 前者用于过去时,后者用于现在时
例子 she is running as fast as he could.
而can是情态动词 经常放在谓语动词前面构成整体的谓语结构
参考:
can(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 couldn't 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 course you can.(可以呀,当然可以.)
No,I'm afraid you can't .I'm waiting for a long distance call from Shenzhen.(不好,我想不好,我正在等深圳要打进来的长途电话.)
再问: 对不起,我是说as as sb. could 和 as as sb. can是否有差别
再答: as as sb. could 和 as as sb. can非要说却别的话 前者用于过去时,后者用于现在时
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