【强调句的解释】在英语语法中，强调句是一种用来突出句子中某一特定成分的句型结构。它能够帮助说话者或写作者更清晰地表达自己的意思，尤其是在需要强调某个部分时非常有用。常见的强调句结构有“it is/was...that/who...”结构，适用于人或物。
一、强调句的基本结构
强调句的核心结构是：
> It is/was + 被强调部分 + that/who + 其余部分
- “it” 是形式主语，不表示实际意义。
- “is/was” 表示时态。
- “that/who” 引导被强调的部分。
- “被强调部分”可以是主语、宾语、状语等。
二、强调句的用法举例
| 句子 | 被强调部分 | 强调句形式 |
| I saw Tom in the park. | Tom | It was Tom that I saw in the park. |
| She gave me a gift. | a gift | It was a gift that she gave me. |
| They met at the station. | at the station | It was at the station that they met. |
| He wrote the letter. | he | It was he who wrote the letter. |
三、强调句的常见错误
1. 混淆“that”和“which”
- 错误：It is the book which I want.
- 正确：It is the book that I want.（强调句中不能用“which”）
2. 误用“who”和“whom”
- 错误：It was him that I met.
- 正确：It was he that I met.（强调句中使用主格“he”，而不是宾格“him”）
3. 遗漏“it”
- 错误：Was it you that did this?
- 正确：It was you that did this.（强调句必须以“it”开头）
四、强调句与普通句的区别
| 普通句 | 强调句 | 说明 |
| I called my mother yesterday. | It was my mother that I called yesterday. | 强调“my mother” |
| He went to school by bike. | It was by bike that he went to school. | 强调“by bike” |
| She likes coffee. | It is coffee that she likes. | 强调“coffee” |
五、总结
强调句是一种通过调整句子结构来突出某一部分的语法手段，常用于口语和书面语中。掌握其基本结构和使用规则，有助于提高语言表达的清晰度和准确性。同时，注意避免常见的语法错误，如误用“that”和“who”、忽略“it”等，才能更自然地运用强调句。
| 关键点 | 内容 |
| 结构 | It is/was + 被强调部分 + that/who + 剩余部分 |
| 用途 | 突出句子中的某一部分 |
| 注意事项 | 避免误用“that/who”；强调人用“who”，强调物用“that”；强调时间、地点、方式时用“that” |
| 常见错误 | 混淆“that”和“which”；误用“who”和“whom”；漏掉“it” |
通过以上内容的学习，可以更好地理解和运用强调句，使语言表达更加准确、生动。
