sth. when … ( 刚要……这时突然……) 1 ) Jack was on the point of playing games when the English teacher came. 3. 还可以表示原因“既然”,相当 since;considering that 。如: 1 ) It was foolish of you to take a taxi when you could easily walk there in five minutes . 问题 2: 6. (2011 天津) The cost of living in Glasgow is among the lowest in Britain, ______ the quality of life is probably one of the highest. A. since B. when C. as D. while 7. (2011 年江苏) ______ I accept that he is not perfect, I do actually like the person. A. While B. Since C. Before D. Unless 连接词 while 的用法小结 1. while 引导的动作必须是持续性的,侧重主句动作和从句动作相对比。如: Please don ’ t talk so loud while others are working. 2. while 作为并列连词,意为“而,却”,表示对比。 3. while 可表示尽管,相当于 although 。 DA
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