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be able to 與can用法區別 |
作者:admin 文章來源:本站原創 點擊數 更新時間:2008-06-22 文章錄入:admin 責任編輯:admin |
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(1) be able to 強調通過努力而獲得的能力,而can則強調自身已具有的能力。如: She can sing the song in English. 她能用英語唱這首歌。 He will be able to sing this song in English in a few minutes, too. 幾小時之后,他也能用英語唱這首歌。 (2) be able to 強調一種結果,而can只強調一種可能。如: Luckily, he was able to escape from the big fire in the end. 幸運的是,他終于逃出了大火。 If he got here a few hours earlier, I could save him. 要是他早幾小時來,我還能救他。 (3) be able to 可以有各種時態;而can只有一般現在和一般過去兩種時態。如: I could help you last night, but you didn’t come. 昨天晚上我能幫你,而你又沒來。 Can you see it there? 你能看見它在那兒嗎? He is / was / will be able to help you. 他能幫你的忙(from www.hz123456.com)。 (4) can可用于表示可能性,推測,允許等情況,而be able to通常不這樣用。
■點擊→英語疑難問題·綜合解答■
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