精选优质文档-倾情为你奉上While的用法大全详解高考完形高频核心词全方位解析while 一段时间；当时（和同时）；却 （1）I”ll be back for a while （2）He fell asleep while doing homework. （3）John was dressed in brown while Mary was dressed in blue 连词while大致有以下四种用法: 1.引导时间状语从句,意为当的时候;和同时,此时的主从句谓语动作同时发生,从句谓语通常是延续性动词。如: Mary watched TV while she ate her supper.玛丽边吃饭边看电视。 While she was listening to the radio, she fell asleep.她听着收音机睡着了。 while引导从句时,如主从句的主语一致,且从句谓语又含有be,则从句主语和be可省略。while后可直接跟现在分词、名词、形容词或介词短语。如: We are teac
