As we were having breakfast, a postman called.
我们正在吃早饭时,邮递员叫门了。
表示一段时间内的同时性时,while 与 as 可以互换。此时主句和从句中动词必须是持续性动词,但有区别。用 while 强调的是主句动词贯穿于 while- 从句所表示时间的始终;用 as 则强调两个动作的同时进行。如:
She waited outside while I fetched her the coat.
我给她取衣服时她在外边等着。
(2) 从属连词词组有 as long as,as soon as,hardly/scarcely/barely when,no sooner than,every time when
Ill tell you as soon as I know.
我一知道就告诉你。
no sooner than 和 hardly/scarcely when;虽然译成汉语都是一就,但有区别。区别如下:
当表示两件事紧接着发生时用 no sooner than 如:
He had no sooner pulled down the huts than he found a snake.
他刚拆掉小屋就发现一条蛇。
当前一件事导致了后一件事的发生时用 no sooner than 如:
He had no sooner found the tomb than he asked men to guard it.
他一发现那座墓就让人看守着。
表示后一件事的发生往往是出乎意料时用 hardly when 如:
【高中英语语法:引导副词从句的从属连词】相关文章:
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