英语状语从句的问题

状语从句可分为：

时间状语从句、 地点状语从句、

原因状语从句、 目的状语从句、

结果状语从句、 条件状语从句、

让步状语从句

状语从句有其相对独立的一套连词，连词本身带有自己的意思。

一. 时间状语从句

引导时间状语从句的从属连词很多，如较基本的有before, after, when, while, as, since, till, until, as soon as
此外还有有一些（杂牌）连词，也能起连接句子的作用，如：the moment, the minute, the second, immediately, directly, instantly, once，no sooner…than, hardly…when[一……就]; every time(每次)，each time(每次), the first time(第一次)

eg: Immediately he came I told him the news. 他一来我就把消息告诉了The moment I saw him I knew there was no hope. 我一看到他就知道没希望了。

He felt nervous each time she spoke to him. 每次她和他讲话，他都感到紧张。

※ 时间状语的一些常见结构

1. … was/were doing … when …

…was/ were about to do … when…

was/were on the point of doing…when

2. It was/will be +段时间+before

①(肯定句) 过多久… 就/才

②(否定句) 不久…就/才

eg: It will be one year before we graduate from middle school.