单词 | if(when) |
释义 | if : when — 449 1a. 这两个连词有时可以通用,有时又不可以通用,这主要取决于:在不甚肯定的场合,要用前者(参见词目 446 、 447 、 448 和 450 );肯定的场合,要用后者。 例如: We'll have the party outside if it doesn't rain this evening. 要是今晚不下雨的话,我们就在户外举行晚会。 When you wake up tomorrow I'll be in Rome. 当你明早一觉醒来,我就将到罗马了。 比较: Perhaps I'll see you in August if I have time. 我要是有工夫,也许八月份来看你。(不一定有把握) I'll see you in August, when I come back. 我八月份回来的时候,一定来看你。(肯定会回来) If they return home, please tell them that I'll be back soon. 要是他们回来,请告诉他们说,我很快就会打转的。(回不回来,还说不定。) When they return home, please tell them that I'll be back soon 他们回来的时候,请告诉他们说,我很快就会打转的。(估计他们准会回来。) 1b. 只有在理所当然的场合,两者才能通用。 例如: If/When you heat metal it expands. 金属一加热就会膨胀。 If/When one is in difficulties, all render help. 一人有难,众人帮。 比较: If the escaped prisoner was captured, he was immediately shot. 要是逃犯被捕获,立即把他枪毙。(必然如此下场,所以改用 when 也可以。) When the escaped prisoner was captured, he was immedately shot. 当逃犯被捕获了,立即把他枪毙。(同样,改用 if 也可以。) |
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