精选优质文档-倾情为你奉上状语从句种 类从属连词例 句说 明时间状从whenWhen I came into the room, he was writing a letter.We shall go there whenever we are free.when指的是“某一具体的时间”whenever指的是“在任何时间”I was walking along the street when suddenly someone patted me on the shoulder from behind.I was about to go swimming when our guide stopped me. when意为“这时”或“在那个时候”,表示某件事正在发生或刚刚发生时，另一动作同时发生。这种用法的when分句一般位于句末。常用句型：be about to do when, be doing when, had done when, be on ones way when, be
