【被动语态的九种结构】在英语语法中，被动语态是一种常见的句型结构，用于强调动作的承受者而非执行者。掌握被动语态的结构对于提高英语表达能力和理解力具有重要意义。以下是常见的九种被动语态结构，结合实例进行总结，并以表格形式清晰展示。
一、被动语态的基本结构
被动语态的基本结构为：
be + 过去分词（p.p.）
例如：
The book was written by him.
二、九种常见被动语态结构总结
| 序号 | 结构 | 例句 | 说明 |
| 1 | am/is/are + 过去分词 | The cake is eaten. | 一般现在时的被动语态 |
| 2 | was/were + 过去分词 | The car was repaired. | 一般过去时的被动语态 |
| 3 | am/is/are being + 过去分词 | The letter is being written. | 现在进行时的被动语态 |
| 4 | was/were being + 过去分词 | The house was being painted. | 过去进行时的被动语态 |
| 5 | have/has been + 过去分词 | The problem has been solved. | 现在完成时的被动语态 |
| 6 | had been + 过去分词 | The report had been sent. | 过去完成时的被动语态 |
| 7 | will be + 过去分词 | The meeting will be held. | 一般将来时的被动语态 |
| 8 | would be + 过去分词 | The plan would be accepted. | 一般将来时的被动语态（虚拟语气） |
| 9 | be going to be + 过去分词 | The job is going to be finished. | 将来进行时的被动语态 |
三、被动语态的使用场景
1. 强调动作的承受者：当动作的接受者比执行者更重要时。
- 例：The painting was created in the 19th century.
2. 不知道或不重要是谁执行了动作：
- 例：The door was broken open.
3. 正式或书面语中：
- 例：The results are expected to be announced tomorrow.
4. 科技、新闻等专业领域：
- 例：The experiment was conducted under controlled conditions.
四、注意事项
- 被动语态通常用于描述客观事实或正式场合。
- 在某些情况下，使用主动语态更简洁明了。
- 被动语态可以与情态动词连用，如：can, must, should 等。
- 例：The document should be signed before submission.
通过掌握这九种被动语态结构，可以更灵活地运用英语表达方式，提升语言的多样性和准确性。建议在实际写作和口语中多加练习，逐步形成自然的语言习惯。