【用not only but also 造句no only 要放句首】在英语语法中，“not only...but also...”是一个常见的结构，用来强调两个并列的成分。当“not only”位于句首时，句子需要进行倒装处理，这是英语中的一种特殊语法规则。掌握这一结构不仅有助于提升语言表达能力，还能让句子更加地道、自然。
一、语法要点总结
| 项目 | 内容 |
| 结构 | not only + 主语 + 动词 + ... but also + 主语 + 动词 |
| 倒装要求 | 当“not only”置于句首时，主语和动词需倒装 |
| 使用场景 | 强调两个并列的内容，常用于书面或正式场合 |
| 注意事项 | “but also”后仍需跟一个完整的句子 |
二、例句展示与分析
| 句子 | 是否倒装 | 分析 |
| Not only does he speak English, but he also speaks French. | 是 | “Not only”在句首，主语he和动词does倒装 |
| Not only she likes music, but also she plays the piano. | 是 | “Not only”在句首，主语she和动词likes倒装 |
| He not only studies hard, but also helps others. | 否 | “Not only”不在句首，无需倒装 |
| Not only did they win the game, but also they set a new record. | 是 | “Not only”在句首，主语they和动词did倒装 |
| She not only sings, but also dances. | 否 | “Not only”不在句首，无需倒装 |
三、使用技巧与注意事项
1. 倒装规则：如果“not only”放在句首，必须将助动词或情态动词提前，构成倒装句。
2. 避免重复：在“not only”和“but also”之间，尽量避免重复相同的词，使句子更简洁。
3. 逻辑清晰：确保“not only”和“but also”所连接的两个部分在逻辑上是并列且相关的。
4. 口语与书面语：该结构多用于书面语，口语中较少使用，但并非完全不用。
四、常见错误对比
| 正确句子 | 错误句子 | 错误原因 |
| Not only is he smart, but also he is kind. | Not only he is smart, but also he is kind. | “Not only”在句首，主语和动词未倒装 |
| Not only did she finish the work, but also she helped me. | Not only she did finish the work, but also she helped me. | “Not only”在句首，主语和动词未倒装 |
| He not only works hard, but also helps others. | Not only he works hard, but also helps others. | “Not only”在句首，主语和动词未倒装 |
通过以上总结和例句分析，可以更好地理解和运用“not only...but also...”结构，尤其是在“not only”置于句首的情况下。熟练掌握这一语法点，能够让你的英语表达更加准确和地道。
