中考必考被动语态的知识

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中考必考被动语态的知识
被动语态是初中英语短文填空、完型填空,单选的必考点。很多同学学到这里容易和时态混淆,今天我们就用最清晰的方式,把被动语态彻底讲透。
一、什么是被动语态?
英语中有两种语态:主动语态和被动语态。
主动语态:主语是动作的执行者。
例:The worker builds the house.(工人盖房子。)
被动语态:主语是动作的承受者。
例:The house is built by the worker.(房子被工人盖。)
二、被动语态的构成
基本公式:be + 过去分词 (past participle)
be 动词随时态、人称、单复数变化。
过去分词:规则动词加 -ed,不规则动词需特殊记忆(如 write → written, break → broken)。
结构拆解:
肯定句:主语 + be + 过去分词 (+ by 执行者)
The bridge was built In 2001.(桥是2001年被建的)
否定句:主语 + be + not + 过去分词
The bridge wasn't built in 2001(桥不是2001年被建的)
一般疑问句:Be + 主语 + 过去分词?
Was the bridge built in 2001?(桥是2001年被建的吗)
特殊疑问句:特殊疑问词+一般疑问句?
When was the bridge built ?(桥是什么时候被建的?)
三、被动语态的时态(九年级中考要求)
被动语态的时态通过be动词的变化来体现。
九年级必须掌握以下四种:
时态
一般现在时​am/is/are + 过去分词
The classroom is cleaned​ every day.
一般过去时​was/were + 过去分词
The window was broken​ yesterday.
一般将来时​will be + 过去分词
The work will be finished in 3 days 。
含情态动词​
情态动词 + be + 过去分词
 Trees should be planted​ in spring  
易错提醒:
一般将来时被动是 will be done,不是 will done!
情态动词被动必须是 情态动词 + be done,be 不能丢。
四、主动变被动的"四步法"
把主动句改为被动句,按以下步骤操作,永远不会错:
第一步:找宾语​
在主动句中找出宾语(动作承受者),把它提到句首当主语。
主动:Tom broke the window. → 宾语:the window
第二步:写be动词​
根据新主语的人称、数以及原句的时态,写出对应的 be 动词形式。
原句是一般过去时,新主语 the window 是单数 → was
第三步:写过去分词​
把主动句的谓语动词改为过去分词。
break → broken
第四步:加by短语(可选)​
原句的主语变为 by 的宾语,放在句末。如果原主语是人称代词,需变宾格。
Tom → by Tom:Tom broke the window
✅ 完整转换:
主动.
被动:The window was broken by Tom.
五、实战练习(附答案)
1. 单项选择
(1) — How often ______ the room ______?
— Twice a day.
A. is; cleaned B. does; clean C. was; cleaned D. will; clean
(2) The book ______ by the writer last year.
A. writes B. wrote C. was written D. is written
(3) Many trees ______ around our school next spring.
A. plant B. planted C. will be planted D. are planting
2. 句型转换
(4) They make cars in this factory. (改为被动语态)
→ Cars ______ ______ in) We should allow children this factory.
(5 to play outside. (改为被动语态)
→ Children ______ ______ to play outside.
📝 参考答案
(1) A (2) C (3) C
(4) are made (5) should be allowed

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