able to和can的区别!
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e able to 与can用法与区别

(1) be able to 强调努力而的能力,而can则强调自身已的能力.如：

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) be able to 强调结果,而can只强调.如：

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) be able to 可以有时态；而can现在和两种时态.如：

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(from www.***.com).

(4) can可用于表示性,推测,允许等情况,而be able to通常不

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