什么是 both…and？
both…and 是英语中一个常用的并列结构，用于连接两个相同类型的成分（如名词、形容词、动词、从句等），表示“两者都……”。
基本结构
both + 名词/代词/形容词/动词等 + and + 名词/代词/形容词/动词等
注意：both…and 连接的两个部分在语法上必须对称。
常见用法示例
- 连接名词：Both Tom and Jerry are coming to the party.
- 连接形容词：She is both intelligent and hardworking.
- 连接动词：He both sings and dances.
- 连接从句：Both what she said and what she did surprised me.
注意事项
both…and引导的主语视为复数，谓语动词用复数形式。
例如：Both my parents are teachers.（不是 is）- 不要与
either…or或neither…nor混淆。both…and表示“两者都”，语气肯定。 - 避免重复使用
both和and之外的其他并列词，如 “both A as well as B” 是错误的。
常见错误
❌ Both he as well as she likes music.
✅ Both he and she like music.
❌ Both of them is happy.
✅ Both of them are happy.