高考英语知识点总结 as用法大全(2)

高考英语知识点总结 as用法大全(2) 　　She cooks as well as her mother does.她烧菜烧得跟她母亲一样好。 　　一些带有as...as结构的常见短语归纳： 　　a

高考英语知识点总结 as用法大全(2) She cooks as well as her mother does.她烧菜烧得跟她母亲一 样好。 一些带有as...as结构的常见短语归纳： as busy as abee像蜜蜂一样忙碌 as easy as ABC像ABC一样容易 as deep as awell像井一样深 as light as afeather像羽毛一样轻 as soft as butter像黄油一样软 as rich as aJew像犹太人一样富裕 as与when，while都是引导时间状语从句的从属连词，含义都是" 当……的时候"。但它们有区别：用when时，从句的动作可以与主句 的动作同时发生，也可以先于主句的动作发生;用while时，从句的动 作为一过程，主句动作与从句动作同时进行或在从句动作过程中发生; 用as时，主句和从句的动作同时发生，具有延续的含义。例如： (1)It was snowing when he arrived at the construction site.他到达工地时，天正在下雪。 (2)He was watching TV while his mother was cooking.他母亲 做饭时他在看电视。 (3) You will grow wiser as you grow older.你会随着年龄的 增长而越来越聪明。 as，because，since都可以表示因果关系，连接原因状语从句， 含义是"因为，由于"，但它们有区别：because表示的语气最强;as一