关于英语中出现频率最高的as作为连词，介词，副词详细用法探究如下： 作连词的用法 【1】 as...as 的用法 as...as 意为"和……一样"，表示同级的比较。使用时要注意第一个 as为副词，第二个 as 为连词。其基本结构为：as+ adj./ adv . +as。 This film is as interesting as that one. 这部电影和那部电影一样有趣。 Your pen writes as smoothly as mine. 你的钢笔书写起来和我的一样流畅。 Run as fast as you can. 你能跑多快就跑多快。 Poets are not so scrupulous as you are. 诗人并不像你那样顾虑多。 I'm as happy as happy can be. 我快乐极了。 其否定式为not as/so +adj./ adv . +as。 This dictionary is not as/so useful as you think. 这本字典不如你想象的那样有用。 I never went through a final exam that was as difficult as that one. 我从来没有碰到过像那次那么难的期末考试。 There was no obvious reason why this could not be as good a film as the original. 找不出明显的理由来解释为什么这部片子拍得不如原先的好。 若有修饰成分，如twice, three times, half, a quarter 等，则须置于第一个as 之前。 Your bag is twice as expensive as mine. 你的袋子比我的贵一倍。 几个关于as...as 的常见句型： (1)as...as possible Please answer my question as soon as possible. 请尽快回答我的问题。 You ought to rest as much as possible. 你应该尽可能多地休息 (2)as...as usual/before She looks as pretty as before. 她看起来和以前一样漂亮。 (3)as long as... (引导条件状语从句) It took us as long as three years to carry out the plan. 我们花了长达三年的时间才完成这项计划。 (4)as far as He walked as far as the railway station yesterday evening. 昨天傍晚，他一直散步到火车站。 (5)as well as She cooks as well as her mother does. 她烧菜烧得跟她母亲一样好。 (6)as little as You can look forward to a significant cash return by saving from as little as £10 a month. 只要每个月存下区区 10 英镑，你就有希望得到相当可观的现金收益。 (7)as m...
