【强调句句型】在英语语法中，强调句句型是一种用来突出句子中某一特定部分的表达方式。它可以帮助说话者或写作者更清晰地传达信息的重点，尤其是在需要强调某个成分（如时间、地点、人物、原因等）时。常见的强调句结构为：“It is/was + 被强调部分 + that/who + 其他成分”。
一、强调句的基本结构
| 结构 | 说明 |
| It is/was + 被强调部分 + that/who + 其他成分 | 强调句的核心结构，适用于人和物 |
- it is/was：形式主语，表示“是……”
- that/who：引导词，根据被强调部分是否为人而选择
- 其他成分：指句子中的其余部分，如谓语、宾语等
二、强调句的使用场景
| 场景 | 举例 |
| 强调时间 | It was in 2020 that he moved to Beijing. |
| 强调地点 | It was in the library that I met her. |
| 强调人物 | It was John who called me yesterday. |
| 强调原因 | It is because of the rain that the match was canceled. |
| 强调方式 | It is by bus that we usually go to school. |
三、强调句与普通句的对比
| 普通句 | 强调句 | 说明 |
| He went to the park. | It was to the park that he went. | 强调地点 |
| She wrote a letter. | It was a letter that she wrote. | 强调内容 |
| They left early. | It was early that they left. | 强调时间 |
四、注意事项
1. 强调人时用 "who"，强调物时用 "that"
- 正确：It was John who won the prize.
- 错误：It was John that won the prize.
2. 不能强调动词原形
- 错误：It was go that he did.
- 正确：It was going that he did.
3. 强调句不能用于现在进行时或将来时
- 错误：It is now that he is leaving.
- 正确：It is now that he leaves.（一般现在时）
五、总结
强调句句型是英语中一种非常实用的语法结构，能够帮助学习者更准确地表达重点内容。通过掌握其基本结构和使用规则，可以有效提升语言表达的清晰度和逻辑性。在实际写作或口语中，合理运用强调句，能够让信息传递更加明确、有力。
| 关键点 | 内容 |
| 定义 | 强调句是用来突出句子中某一部分的句型 |
| 结构 | It is/was + 被强调部分 + that/who + 其他成分 |
| 使用场景 | 时间、地点、人物、原因、方式等 |
| 注意事项 | 强调人用 who，强调物用 that；不能强调动词原形；不用于进行时或将来时 |
