时间状语从句是用来表示主句动作发生时间的从句,常由特定的连词引导。掌握这类从句有助于更准确地表达事件发生的先后顺序和时间关系。
| 引导词 | 用法说明 | 例句 |
| when | 表示“当……时”,可指具体时间或一般时间 | When I arrived, the meeting had started. |
| while | 表示“当……时”,强调动作同时发生 | While she was cooking, the phone rang. |
| as | 表示“当……时”,强调动作同时进行 | As he spoke, everyone listened. |
| before | 表示“在……之前” | I left before it rained. |
| after | 表示“在……之后” | We went home after the party. |
| since | 表示“自从……以来” | I have lived here since 2010. |
| until | 表示“直到……为止” | She waited until the bus came. |
正确使用时间状语从句,能增强语言的逻辑性和准确性。