高中英语知识点归纳被动语态的构成与用法

高中英语知识点归纳被动语态的构成与用法被动语态是英语句子中重要的语法结构之一，它的构成和用法对于高中英语学习者来说是必须要掌握的知识点。

本文将归纳总结被动语态的构成和用法，帮助读者更好地理解和运用。

一、被动语态的构成
被动语态是由be动词和过去分词构成的，be动词的形式根据句子的时态和语态而变化。

1. 一般现在时态的被动语态：
主语 + am/is/are + 过去分词
例如：
Active: They clean the classroom every day.
Passive: The classroom is cleaned every day (by them).
2. 一般过去时态的被动语态：
主语 + was/were + 过去分词
例如：
Active: He repaired the car yesterday.
Passive: The car was repaired yesterday (by him).
3. 现在进行时态的被动语态：
主语 + am/is/are + being + 过去分词
例如：
Active: They are building a new bridge. Passive: A new bridge is being built (by them).
4. 现在完成时态的被动语态：
主语 + have/has been + 过去分词
例如：
Active: They have finished the project. Passive: The project has been finished (by them).
5. 将来时态的被动语态：
主语 + will be + 过去分词
例如：
Active: He will clean the room later. Passive: The room will be cleaned later (by him).
二、被动语态的用法
被动语态常用于以下情况：
1. 强调动作的承受者而非执行者。

例如：
Active: They built this house.
Passive: This house was built (by them).
2. 省略执行者的情况。

例如：
Active: Someone stole my bike.
Passive: My bike was stolen (by someone).
3. 确定或不确定执行者的情况。

例如：
Active: They say that Tom won the writing competition.
Passive: It is said that the writing competition was won (by Tom).
4. 当执行者不重要或未知时。

例如：
Active: They found the missing keys.
Passive: The missing keys were found.
5. 对于某些固定的动词，如make, build, invent等，它们常用于被动语态表示制造或发明的动作。

例如：
Active: He built this bridge.
Passive: This bridge was built (by him).
总结起来，被动语态的构成和用法在高中英语学习中是必不可少的。

通过掌握被动语态的构成和运用，我们能够更灵活地使用英语，使句
子更加丰富多样。

希望本文的归纳总结对读者在高中英语学习中有所
帮助。