【but和though的用法区别】在英语学习中，"but" 和 "though" 都是表示转折关系的连词，但它们在使用方式、语气以及语境上存在明显差异。正确理解两者的区别，有助于提高语言表达的准确性和自然度。
一、基本定义与用法对比
| 项目 | but | though |
| 类型 | 并列连词 | 从属连词（引导让步状语从句） |
| 位置 | 可以放在句首或句中 | 通常放在句首或从句开头 |
| 语气 | 较为直接、口语化 | 较为正式、书面化 |
| 语法结构 | 连接两个独立分句 | 引导一个从句，后面常接主句 |
| 常见搭配 | but also, but yet | though...still, though...yet |
二、具体用法说明
1. but 的用法
- 连接两个并列的句子：表示“但是”，强调前后句之间的对比。
- 例句：I wanted to go, but I was too tired.
- 用于否定句中：加强语气。
- 例句：He is not lazy, but he doesn’t work hard.
- 可以与 other words 搭配使用：
- 例句：She is kind, but she can be stubborn.
2. though 的用法
- 引导让步状语从句：相当于“虽然”，后接主句，表示让步。
- 例句：Though it was raining, we went out.
- 可置于句首：语气更正式。
- 例句：Though he tried his best, he failed.
- 与 still/ yet 搭配使用：表示“尽管……仍然……”
- 例句：Though it was late, still she waited for him.
三、常见错误对比
| 错误用法 | 正确用法 | 说明 |
| I like coffee, though I don't drink it often. | I like coffee, but I don't drink it often. | “though”不能单独连接两个独立分句，需加主句 |
| Though he is rich, he is unhappy. | Though he is rich, he is unhappy. | 正确用法，但更自然的说法是“Although he is rich, he is unhappy.” |
| He didn't come, but he was sick. | He didn't come, though he was sick. | “though”用于让步，比“but”更正式 |
四、总结
| 对比点 | but | though |
| 是否并列 | 是 | 否 |
| 是否引导从句 | 否 | 是 |
| 语气风格 | 口语化 | 正式化 |
| 常见搭配 | but also, but yet | though...still, though...yet |
| 使用场景 | 日常交流、简单转折 | 正式写作、复杂语境 |
通过以上对比可以看出，“but” 更偏向于日常使用，而 “though” 更多用于书面语或较为正式的场合。掌握它们的区别，有助于我们在不同语境中更自然地表达自己的意思。