Question

as soon as when，while 什么区别

Answer 1

　　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。