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be able to 和can的区别

时间:2023-06-16 10:17文/学帆高考

be able to 强调通过努力而获得的能力,而can则强调自身已具有的能力。be able to 强调一种结果,而can只强调一种可能。be able to 可以有各种时态;而can只有一般现在和一般过去两种时态。can可用于表示可能性,推测,允许等情况,而be able to通常不这样用。

be able to 和can的区别

be able to与can的对比例句

1、She can sing the song in English.她能用英语唱这首歌。

He will be able to sing this song in English in a few minutes, too.几小时之后,他也能用英语唱这首歌。

2、Luckily, he was able to escape from the big fire in the end.幸运的是,他终于逃出了大火。

If he got here a few hours earlier, I could save him.要是他早几小时来,我还能救他。

3、I could help you last night, but you didn’t come.昨天晚上我能帮你,而你又没来。

Can you see it there?你能看见它在那儿吗?

He is / was / will be able to help you.他能帮你的忙。

be able to和can含义的不同

这一点不同主要集中在过去时中,could 表示“能够”,was / were able to 表示“得以做成”,即后者的动作完成了,前者只是一种可能性。

He could leave Europe before the Second World War. 他在二战开始前能离开欧洲。(有没有离开,不知道)

He was able to leave Europe before the Second World War. 他在二战开始前得以离开欧洲。(成功离开)

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