初中英语语法系列-被动语态ppt课件

This room was used for resting by them.
11
3.现在进行时的被动语态的结构
is / am / are + being ＋过去分词
1.Some workers are painting the rooms now．
The rooms are being painted by some workers now.
• They often use computers in class.
Computers are often used by them in class.
• We make these machines in Beijing.
These machines are made in Beijing.
8
Many trees were planted last year.
10
• They built the tall building last year.
The tall building was built by them last year.
• He took good care of his little brother yesterday.
His little brother was taken good care of by him yesterday.
• We cleaned our classroom just now.
Our classroom was cleaned by us just now.
• They used this room for resting.
His new pen is being looked for by him.
• We are cleaning our classroom windows now.
Our classroom windows are being cleaned by us.
1
1.Teenagers should be allowed to choose their own clothes.
2.English is spoken by many people .
3.The tickets about heroes are sold out .
4.Lucky 52 is watched on TV by many people .
2.He is washing his jacket.
His jacket is being washed by him. 12
• They are building a new house.
A new house is being built by them .
• He is looking for his new pen.
7
• They play football on Sunday.
Football is played by them on Sunday.
• Lucy does the homework in the evening.
The homework is done by Lucy in the evening.
5.Rice is planted in South China. 6.He is said a good boy .
2
语态
语态：表示主语和谓语动词之间的关系。 英语有两种语态，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。 如： Many students study English.(主动语态) English is studied by many students.
3. 判断动词的时态 ----即be动词的时态. 4. 修改谓语的时态 ----即原句动词改为过去分词 5. 修改原句的主语 ----即by+ 主语/ 宾语.
They make shoes in that factory.
Shoes are made by them.
宾变主,主放后,前加by
动变被,看清be, 结构分别be+ pp
(被动语态)
3
被动语态的结构
不同的时态有不同的被动语态结构 1.一般现在时的被动语态结构：
助动词be+及物动词的过去分词
助动词be有人称、数的变化,其变化规则与 be作为连系动词时一样。 如：The desk is made of woodood.
4
He is asked questions by the teacher.
1.把主动语态的宾语变为被动语态的主语。
2.把主动语态的谓语变为被动语态的谓语。
3.把主动语态的主语变为被动语态的by
短语。（① by短语可以省。② by短语
后跟代词的宾格。）
6
主变被解题步骤
1. 找宾语 ----即动作的承受者 2. 判断宾语的单复数 ----即be动词的单复数.
被动语态的时态是由be的时态决定的，be是 什么时态，全句就是什么时态，be动词后面的 过去分词不变。
肯定句：主语＋be + 过去分词＋(by ~) 否定句：主语＋be not ＋过去分词＋(by ~) 一般疑问句：Be ＋主语＋过去分词＋(by ~)? 特殊疑问句：
疑问词＋be＋主语+过去分词＋ (by ~)
English is studied by many students.
9
2.一般过去时的被动语态结构：
was/were +过去分词
1. They bought ten computers last term．
Ten computers were bought by them last term. 2.We planted many trees last year.
1.Many students study English.
English is studied by many students. 2.They make shoes in that factory.
Shoes are made by themin that factory.
5
3.The teacher often asks him questions.