题目内容
17.It was several minutes ____we realized what was happening---our dog was trapped in a newly-dug tunnel.( )| A. | since | B. | before | C. | until | D. | while |
分析 过了几分钟我们才意识到发生了什么-我们的狗被新挖的隧道困住了.
解答 答案B.A项"自从…";C项"直到…";D项"虽然;然而;当…的时候";B项"在…以前;在…之前";分析句子结构和语境可知,这里使用了句型"it was+时间段+before …"表示"过了(多长时间)才…".其否定形式"it was not+时间段+before …"意为"不久就…","没过(多长时间)就…",因此B项符合语境,故选B.
点评 Before用作连词时,意思是"在…之前".在引导状语从句时,before在不同的句式中汉英表达习惯不同,before的含义和用法也有所不同.
1、表示"在…之后…才".副词"才"在汉语中强调某事发生得晚或慢.如果在含有before从句的复合句中,强调从句动作发生得晚或慢时,就可以应用这种译法.
2、表示"…还没来得及…就…".目的在于强调从句动作发生之前,主句动作已发生.
3.表示"在…之前就…".这时主句与before从句中的两个动作按时间先后依次发生.
4、表示"趁…","等到…",或"没等…就…"等.
5、用于句型"It+will/would be+时间段+before…"句型中,表示"要过多久才…",也可用于"It+may be+时间段+before…",表示"也许要过多久才…".其否定形式"It will/would not be+时间段+before…"表示"不久就…,过不了多久就…".
6、用于句型"it was+时间段+before …"表示"过了(多长时间)才…".其否定形式"it was not+时间段+before …"意为"不久就…","没过(多长时间)就…".
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