文档介绍：
rbial clause of comparison)
方式状语从句(adverbial clause of manner)
结果状语从句(adverbial clause of result)
2英语八类状语从句的用法归纳
一、概说
状语从句即指在主从复合句用作状语的从句。根据其意义，状语从句可分为时间状语从句、地点状语从句、缘由状语从句、目的状语从句、结果状语从句、条件状语从句、让步状语从句等。状语从句是中学英语学习中的一个语法重点，也是历年高考重点考查的内容之一。学习状语从句主要应留意引导状语从句的从属连词的用法与区分，以及从属连词在肯定的语言环境中的意义与用法。
二、时间状语从句
1. 引导时间状语从句的从属连词许多，常见的有before, after, when, while, as, since, till, until, as soon as 等。
2. 表示“当…时候”的 while, when, as 的用法区分是：while从句中的谓语动词必需是持续性动词;表示带有规律性的“每当”或当主、从句谓语动词的动作发生有先后时，只能用 when;当表示“一边…一边…”或“随着”时，只能用 as。另外，用于此义的 as 所引导的时间状语从句谓语只能是动作动词，不能是状态动词。如下面一道高考题的答案是 B 而不能是A：
“I’m going to the post office.” “_____ you’re there, can you get me some stamps?”
A. As B. While C. Because D. If
3. until 在确定句中通常只连用持续性动词，表示相应动作结束的时间;在否定句中通常连用非持续性动词，表示相应动作起先的时间，意为“直到…才”。如：
He waited until she was about to leave. 他等着始终到她打算离开。
I did not begin to work till he had gone. 他走了后我才起先工作。
4. 表示“一…就”除用 as soon as 外，还可用 the minute, the second, the instant, immediately, directly, instantly, no sooner…than, hardly…when 等。如：
I came immediately you called. 你一来电话我就来了。
Hardly had she arrived when it began to snow. 她刚到就下起雪来了。
The moment I have finished I'll give you a call. 我一干完就给你打电话。
5. every time, each time, (the) next time, (the) last time, by the time, the first time, any time 等以 time 结尾的词语也可用作连词，引导时间状语从句。如：
Next time you come in, please close the door. 下次你进来，请关门。
He didn’t tell me anything the last time I saw him. 上次我见到他时他什么也没告知我。
By the time I got home,