初三英语复习课
被动语态（The passive voice） Teacher: Teaching aims：
Knowledge objects: The passive voice
Ability objects: According to designing some tasks to train students’ reading skill and train students’ speaking skill with target language.
Moral objects:
2、 通过小组学习、合作探究，这样使学生乐于学习，快乐成长。
3、 通过本节课的学习，尤其是通过对话交流让学生领悟并归纳出所学知识，增强了学生学习英语的信心。
英语中及物动词有两种语态，即主动语态和被动语态。主动语态表示主语是动作的执行者.被动语态表示主语是动作的承受者。被动语态由“be+及物动词的过去分词”构成。助动词be有人称、时态和数的变化。
一、被动语态的用法：
1.一般现在时的被动语态构成：is / am / are + p.p
Our classroom is cleaned everyday. Knives are used for cutting things.
2.一般过去时的被动语态构成：was / were + p.p
A new shop was built last year. Dinosaur eggs were laid long long ago.
3.现在完成时的被动语态构成：has / have + been + p.p
This book has been translated into many languages.
4.一般将来时的被动语态构成：will+ be + p.p
A new hospital will be built in our city. Many more trees will be planted next year.
5.含有情态动词的被动语态构成：情态动词+ be + p.p
Young trees must be watered often. Your mistakes should be corrected right now.
6.现在进行时的被动语态构成：am / is / are + being + p.p
Uncle Wang is mending my bike now.→My bike is being repaired by Tom now.
They are planting trees over there. →Trees are being planted over there by them.
二、怎样把主动语态改成被动语态?
1.先找出谓语动词； 2.再找出谓语动词后的宾语；
3.把宾语用作被动语态中的主语； 4.注意人称、时态和数的变化。
例：1. Bruce writes a letter every week. →A letter is written by Bruce every week.
2.He has written two novels so far.→Two novels have been written by him so far.
三、使用被动语态应注意的几个问题：
1.不及物动词无被动语态。
What will happen in 100 years. The dinosaurs disappeared about 65 million years ago.
2.有些动词用主动形式表示被动意义。
This pen writes well. This new book sells well.
3.感官动词或使役动词使用省略to的动词不定式，主动语态中不带to ，但变为被动语态时，须加上to 。
A girl saw my wallet drop when she passed by.→My wallet was seen to drop by a girl when she passed by.
The boss made the little boy do heavy work.→The little boy was made to do heavy work by the boss.
4.如果是接双宾语的动词改为被动语态时，直接宾语(物)作主语，那么动词后要用介词，这个介词是由与其搭配的动词决定。
He gave me a book.→A book was given to me by him.
He showed me a ticket.→A ticket was shown to me by him.
My father bought me a new bike. →A new bike was bought for me by my father.
四、Practice Do some exercises about The Passive Voice
五、Summary
六、Homework
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