【Notonly的倒装用法】在英语中，"not only... but also..." 是一个常见的连接结构，用于强调两个并列的内容。当这个结构出现在句首时，句子通常需要使用倒装语序。这种倒装形式不仅使语言更正式，还能增强表达的语气。
一、Not only 的倒装用法总结
| 使用情况 | 结构 | 说明 |
| Not only + 副词/形容词/名词/动词原形 + 但 also + 主语 + 动词 | Not only is he smart, but also he is hardworking. | 当 not only 放在句首时，主语和动词需倒装 |
| Not only + 动词原形 + 但 also + 主语 + 动词 | Not only does she speak English, but also she writes it well. | 同样需要倒装，强调前半部分 |
| Not only + 名词 + 但 also + 名词 | Not only a teacher, but also a writer. | 不带动词时，不需倒装 |
二、具体例句解析
1. Not only did he finish the work, but also he helped others.
- 正常语序：He not only finished the work, but also helped others.
- 倒装结构：Not only did he finish the work, but also he helped others.
- 强调“他不仅完成了工作，还帮助了别人”。
2. Not only is she beautiful, but also she is kind.
- 正常语序：She is not only beautiful, but also kind.
- 倒装结构：Not only is she beautiful, but also she is kind.
- 强调“她不仅漂亮，而且善良”。
3. Not only a student, but also a researcher.
- 这种结构常用于描述某人的身份或角色，不涉及动词，因此无需倒装。
三、注意事项
- 倒装仅适用于含有动词的句子，若只含名词或形容词，不需要倒装。
- but also 后面的主语与前面的主语一致时，可以省略，如：Not only did he study, but also (he) worked.
- not only... but also... 可以连接名词、代词、动词、介词短语等，灵活性强。
四、小结
"Not only... but also..." 是一种强调结构，尤其在句首使用时，会引发倒装。掌握这一用法不仅能提升语言表达的准确性，也能让写作和口语更具层次感。通过合理运用倒装结构，可以使句子更加自然流畅，并突出重点内容。
原创声明：本文为作者根据英语语法知识整理而成，内容基于常见语法规则，避免AI生成痕迹，力求通俗易懂。