【时间状语从句例句有哪些】在英语学习中，时间状语从句是一个非常重要的语法点，它用来表示主句动作发生的时间背景。掌握时间状语从句的用法，有助于提高句子的表达能力和语言的准确性。
以下是常见的几种时间状语从句类型及其对应的引导词，并附上例句供参考：
一、常见时间状语从句类型及引导词
| 引导词 | 用法说明 | 例句 |
| when | 表示“当……的时候”，可指具体时间点或时间段 | When I arrived home, it was already midnight. |
| while | 表示“当……的时候”，强调两个动作同时发生 | While she was cooking, the phone rang. |
| as | 表示“当……的时候”，强调动作同时发生 | As I was walking in the park, I met an old friend. |
| before | 表示“在……之前” | Before he left, he said goodbye to his mother. |
| after | 表示“在……之后” | After the meeting ended, we went for lunch. |
| since | 表示“自从……以来”，常用于现在完成时 | Since I moved to Beijing, I have made many new friends. |
| until | 表示“直到……为止” | I waited until the bus came. |
| as soon as | 表示“一……就……” | As soon as I saw her, I knew something was wrong. |
| by the time | 表示“到……时候为止” | By the time we got there, the movie had already started. |
二、总结
时间状语从句是英语中用来描述主句动作发生时间的从句，常见的引导词包括 when, while, as, before, after, since, until, as soon as, by the time 等。每种引导词都有其特定的使用场景和语义特点。
通过掌握这些引导词以及它们的搭配方式，可以更准确地表达时间关系，使语言更加自然、地道。
在实际应用中，建议多读多练，结合具体的语境来理解每个从句的含义和用法。这样才能真正掌握时间状语从句的运用技巧。