ARTICLE · 1126726
初中英语语法:被动语态 导学案
【学习目标】
1.掌握主动语态与被动语态的区别,理解被动语态含义:主语被……
2.熟记被动语态核心结构:be + 过去分词
3.掌握初中四大必考被动时态 + 情态动词被动结构
4.掌握中考三大易错点:无被动动词、make 还原to、短语动词不拆分
5.能熟练完成:单选、句型转换、翻译、改错题型
【课前预习·基础知识】
1. 语态概念
主动语态:主语发出动作(人做某事)
例:I clean the room. 我打扫房间。
被动语态:主语承受动作(被……)
例:The room is cleaned. 房间被打扫。
2. 被动语态万能公式
be + 过去分词(done)
关键点:be 随时态、人称、单复数变化;过去分词永远不变
【课堂精讲·核心考点】
一、初中5大必考被动结构
时态 | 被动结构 | 例句 |
一般现在时 | am/is/are + done | Trees are plantedevery year. |
一般过去时 | was/were + done | The work was finishedyesterday. |
一般将来时 | will be + done | The meeting will be heldtomorrow. |
现在完成时 | have/has been + done | My homework has been done. |
情态动词 | must/can/should + be + done | Rules must be obeyed. |
二、主动变被动三步法(必考句型转换)
第一步:主动句宾语→ 改为被动句主语
第二步:谓语动词改为be + 过去分词(时态不变)
第三步:主动主语放 by 后,可省略
例句:People speak English. → Englishis spoken (by people).
三、中考超级易错重难点
易错点1:这些动词无被动语态
happen(发生)、take place(发生)、appear(出现)、rise(上升)
错:The accident was happened.
对:The accident happened.
易错点2:make/see/hear 被动还原to
主动:make sb do sth(不带to)
被动:sb be made to do sth(必须加to)
例:He was made to finish the work.
易错点3:短语动词被动不能拆分
look after、take care of、look at、listen to
例:The old woman is looked after well.
【课堂笔记·背诵口诀】
被动语态be字变,过去分词跟后面;
现在am/is/are,过去was/were换;
将来will be,情态后面be现;
make主动省to,被动一定要出现;
发生无被动,切记不要乱改变!
【课堂当堂练习】
一、用动词适当形式填空
1. Many flowers ________ (plant) in spring every year.
2. The letter ________ (write) by Tom yesterday.
3. Homework ________ (must finish) on time.
4. Great changes ________ (take place) in our city.
二、单项选择
1. The window ______ yesterday afternoon.
A. broke B. was broken C. is broken
2. Kids ______ to swim alone. It’s dangerous.
A. mustn’t allow B. mustn’t be allowed C. aren’t allow
3. He was made ______ up early every day.
A. get B. to get C. getting
三、句型转换(主动改被动)
1. We clean our classroom every day.
________________________________________
2. They will build a new park here.
________________________________________
【当堂检测·参考答案】
一、适当形式填空
1. are planted 2. was written 3. must be finished 4. have taken place
二、单项选择
1.B 2.B 3.B
三、句型转换
1. Our classroom is cleaned every day.
2. A new park will be built here.