before和until的用法及區(qū)別-資料下載頁
2025-07-25 17:24本頁面
【正文】 obably not be long before they understand each other. 三、下列情況一般區(qū)別用 until。 ，肯定、否定都可以，但意義完全不同?？隙ū韯幼鹘K止，而否定表動作開始。例如： (1)We discussed the problem until/before he came 他回來。 (2)We didn39。t discuss the problem until he came 問題。 …until 句型盡管在某些情況下可與before互換用，但在強調(diào)句中一般仍用 until。 例如： (1)It was not until he told me that I knew it. (2)It was not until he finished his homework that he went home. They were taking a peaceful walk in the woods_______ three men sprang out from behind a bush and attacked them. A. until B. when C. before D. after B
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