Question

as soon as when，while 什么区别

Answer 1

as soon as，when，while三者区别如下：
1. as soon as 引导的从句表示从句动作一发生，主句动作随即发生。通常译为“一…就…”
例如：
Come here as soon as you finish the work.
工作一结束你就到这里来.
2. when 表示某个具体的时间，所引导从句的动作是与主句的动作同时发生，或是先于主句动作。可指一段时间，也可指一点时间,既可表示一时性的动作，又可表示持续性的动作。
例如：
When he returned from work,his wife was cooking.
他下班回家时,他的妻子正在做饭.
3. while只能表示持续性的动作或状态，不能表示一时性或短暂性的动作。
例如：
One day while he was shopping in the supermarket,he saw his ex-wife with a
man.
一天，他在超市购物时,他看到了他的前妻和一个男子在一起。

Answer 2

1.as soon as一经...;立即...;一...就...
Come here as soon as you finish the work.
工作一结束你就到这里来.
2.while 意为 during the time that“在……期间”,表达一个“时间段”,不能表达“时间点”,从句的动词只限于持续性动词.例如：
One day while he was shopping in the supermarket,he saw his ex-wife with a man.
一天,他在超市购物时,他看到了他的前妻和一个男子在一起.
Strike while the iron is hot.
趁热打铁.
3、when 意为 at the time that“在…时”,多指“时间点”,例如：
When he returned from work,his wife was cooking.
他下班回家时,他的妻子正在做饭.