九年级英语Unit_3被动语态课件人教版新目标

• 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.
3.含有短语的主动语态变被动语态
不及物动词没有宾语，因此没有被动语态。 但有的不及物动词后面加上介词及其他一些 词类构成短语动词之后，其作用相当于及物 动词，可以接宾语，因而也可以变为被动语 态。在变成被动语态时，不能去掉构成短语 动词的介词或副词.
They take good care of my child. My child is taken good care of . I turned off the radio. The radio was turned off (by me)
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.
3.The teacher often asks him questions.
3.一般将来时的被动语态结构：
will be+过去分词
1.They will finish the work in ten days.
The work will be finished by them in ten days
2.Tom will clean the room tomorrow.
The room will be cleaned by Tom tomorrow.
2.We have finished our compositions.
Our compositions have been finished by us.
பைடு நூலகம் 时态
被动语态结构
am/is/are done 一般现在时 表格：被动态基本结构 was/were done 一般过去时 现在进行时 过去进行时 一般将来时 过去将来时 现在完成时 过去完成时 am/is/are being done
Gina can be taken good care of by Amy. 2.You should drink more water.
More water should be drunk by you.
1.He can take care of the baby.
The baby can be taken care of by him.
主变宾,宾变主, 谓动be done 时不变,人称、数、格随着变
• They play football on Sunday.
Practice
Football is played by them on Sunday.
• Lucy does the homework in the evening.
The homework is done by Lucy in the evening.
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.
Many trees were planted last year.
Is English studied by many students? Who is English studied by?
Practice
Football is played by them on Sunday.
The homework is done by Lucy in the evening. Computers are often used by them in class. These machines are made in Beijing.
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 wood. The desks are made of wood. He is asked a question by the teacher.
（2）强调动作的承受者，这时应用by短语。
The cup was broken by David.
（3）作客观说明时，常采用一种被动语态句型. It’s / was said / believed / reported / + that … It’s reported that about three hundred people were killed in this earthquake. 据报道，这次地震中大约有三百人死亡。
• We cleaned our classroom just now.
Our classroom was cleaned by us just now.
• They used this room for resting.
This room was used for resting by them.
• 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.
句式 肯定句：主语＋be + 过去分词＋(by ~)
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。）
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. 3. 判断动词的时态 ----即be动词的时态. 4. 修改谓语的形式 ----即原句动词改为过去分词 5. 修改原句的主语 ----即by+ 宾语（原主语）. They make shoes in that factory. Shoes are made by them.
2.含有宾语补足语的句子的被动语态 keep, make 三类的动词常常有宾语补足 语， 在被动语态中，宾语补足语位置不变。 We keep food fresh in the fridge. 主 谓 宾 宾补 －Food is kept fresh in the fridge. I saw him go into the office building. －He was seen to go into the office building.
English should be learned well by them.
5.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.
2.Lucy may draw the pictures.
The picture may be drawn by Lucy.
3.You must turn off the lights.
The lights must be turned off by you.
4.They should learn English well.
5.Rice is planted in South China. 6.He is said a good boy .
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. (被动语态)
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.
English is not studied by many students.
复习
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 .
被动语态的几种类型
1.带双宾语句子的被动语态.（指物的宾语叫直接宾语， 指人的宾语叫间接宾语） 常见的接双宾语的动词有: to: pass, give, teach, show, bring, hand for: make, buy, draw, sing, get, 以“人”当主语时，变法和一般的变法一样； 以“物”当主语时，在保留的间接宾语前必须加to或 for. 如：1.He gave me a book. －I was given a book by him. （以I做主语） －A book was given to me by Tom. （以物book作主语） 2.He teaches us English. －We are taught English by him. （以人当主语） －English is taught to us by him. （以物作主语）