【强调句型结构】在英语语法中，强调句型是一种用于突出某一特定成分的表达方式。它可以帮助说话者或写作者更清晰地传达重点信息，使句子更具表现力和逻辑性。常见的强调句型有“it is...that...”结构，适用于句子中的主语、宾语、状语等成分。
以下是对强调句型结构的总结与对比表格，帮助学习者更好地理解和掌握其用法。
一、强调句型结构总结
强调句型的核心结构是：“It is/was + 被强调部分 + that/who + 其他成分”。该结构可以用来强调句子中的主语、宾语、状语等，但不能用于强调谓语动词或形容词。
- 强调主语：It is the teacher who taught us English.
- 强调宾语：It is a book that he gave me.
- 强调时间状语：It was yesterday that I met her.
- 强调地点状语：It was in the library that I found the book.
强调句型在口语和书面语中都十分常见，尤其在正式写作或演讲中，使用强调句可以增强语言的表现力和逻辑性。
二、强调句型结构对比表
| 句子类型 | 原句 | 强调句型 | 说明 |
| 强调主语 | The teacher taught us English. | It is the teacher that taught us English. | 强调主语“the teacher” |
| 强调宾语 | He gave me a book. | It is a book that he gave me. | 强调宾语“a book” |
| 强调时间状语 | I met her yesterday. | It was yesterday that I met her. | 强调时间“yesterday” |
| 强调地点状语 | I found the book in the library. | It was in the library that I found the book. | 强调地点“in the library” |
| 强调原因状语 | She didn’t come because of the rain. | It was because of the rain that she didn’t come. | 强调原因“because of the rain” |
三、注意事项
1. 不能强调谓语动词：例如，“He runs fast.”不能说成“It is runs that he is fast.”
2. 人称代词用“who”，物用“that”：如“It is the man who helped me.”
3. 时态一致：强调句型中的“is/was”要与原句时态保持一致。
通过掌握强调句型的结构和用法，可以有效提升语言表达的准确性和表现力，使写作更加流畅自然。
