as 用法归纳和练习题一、 as作副词，表示程度，意为“同样地”。在“asas”，“not as/soas结构中的第一个as是副词，作“和与(不)一样”解。 Jack is as tall as his father He doesnt speak English asso fluently as you 二、 as作介词。 1作“如，像”解。They got united as one man 2作“充当，作为”解。eg： As a writer，he was famous 三、 as作连词，常用来连接主句和状语从句。 1引导时间状语从句，作“当的时候”解，有“随着”之意，与while意义相近，强调两个动作同时发生；或某事一发生，另一事立即发生。eg： He shouted aloud as her ran along他一边往前跑，一边高声地呼喊。 I was startled as he opened the door他一开门，我吓了一跳。 as作连词，相当于when。e
