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while,as...,soon...as,when,until,after,berore的区别是什么?在什么时候用?
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推荐答案 2011-04-24
while当……的时候(引导时间状语从句,强调两个动作同时发生,后面接延续性动词);然而(引导转折分句)
as soon as 一……就(引导时间状语从句)
when 当……的时候(后面可以接延续性动词,也可以接短暂性动词)(引导时间状语从句)
until (与not连用,not...until 直到……才)(引导时间状语从句)
after在……之后(引导时间状语从句)
berore在……之前 (引导时间状语从句)
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第1个回答 2011-04-27
until一般与not连用,表示直到...才。例如,I didn‘t go to sleep until Ifinished my homework。
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