【bothof的用法归纳】在英语学习中，“both of”是一个常见的搭配，常用于强调两个事物或人。虽然它看似简单，但在实际使用中需要注意语法结构、语境以及与不同词类的搭配方式。以下是对“both of”的用法进行系统归纳和总结。
一、基本用法说明
“both of”通常用于指代两个特定的人或事物，后面接名词或代词，表示两者都具有某种特征或行为。常见结构为：
- both of + 名词/代词（复数）
- both of + 定冠词 the + 名词（复数）
例如：
- Both of my parents are doctors.（我的父母都是医生。）
- Both of them are tired.（他们俩都很累。）
二、常见用法分类
| 类型 | 结构 | 例子 | 说明 |
| 1. 指代两个人 | both of + 代词（复数） | Both of them like music. | 强调“他们两人” |
| 2. 指代两个事物 | both of + 名词（复数） | Both of the books are interesting. | 强调“这两本书” |
| 3. 带定冠词的复数名词 | both of the + 名词（复数） | Both of the students passed the exam. | 强调“这两个学生” |
| 4. 与指示代词连用 | both of these/those | Both of these options are good. | 强调“这两个选项” |
| 5. 与疑问词连用 | both of whom | Both of whom are from China. | 在从句中作宾语 |
| 6. 与介词连用 | both of + 介词短语 | Both of in the meeting were present. | 表示“在会议中的两人” |
三、注意事项
1. 主谓一致：当“both of”后接复数名词或代词时，动词要使用复数形式。
- 正确：Both of the teachers are here.
- 错误：Both of the teachers is here.
2. 不能单独使用“both”：必须与“of”搭配使用，否则不符合语法规则。
- 正确：Both of us went to the party.
- 错误：Both us went to the party.
3. 避免重复使用“both”：如“both of both”是不正确的表达。
- 正确：Both of the students are good.
- 错误：Both of both students are good.
4. 在从句中使用：当“both of”出现在从句中时，通常需要加上“whom”或“which”来引导。
- 正确：I know both of the people who came yesterday.
- 错误：I know both of the people came yesterday.
四、常见错误对比
| 正确句子 | 错误句子 | 错误原因 |
| Both of them are coming. | Both them are coming. | 缺少“of” |
| Both of the cars are new. | Both the cars are new. | 缺少“of” |
| Both of us like pizza. | Both us like pizza. | 缺少“of” |
| Both of the boys were late. | Both the boys were late. | 缺少“of” |
五、总结
“both of”是一个非常实用的表达，用于强调两个对象。正确使用时需注意：
- 必须与复数名词或代词搭配；
- 动词要与复数保持一致；
- 在从句中需结合“whom”或“which”；
- 避免与“both”单独使用。
掌握这些规则可以帮助你更准确地使用“both of”，提升英语表达的自然度和准确性。
希望这篇内容对你的英语学习有所帮助！
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