被动语态课件

课件16张PPT。陈德丽英语研究课陈德丽英语研究课.主动语态与被动语态：
英语动词有两种语态，即主动语态(The Active Voice)与被动语态（The Passive Voice)。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。


主动语态被动语态主动语态被动语态 一般现在时被动语态的构成：
am/is/are+及物动词的过去分词 动词过去分词的构成规则（与动词过去式构成规则一样）：1、一般在动词原形末尾加-ed，looked played2、结尾是e的动词加-d ， lived used3、末尾只有一个辅音字母的重读闭音节词，先双写
这个辅音字母，再加-ed， planned tripped4、结尾是“辅音字母+y”的动词，先变“y”为“i” ， 再
加-ed ， study---studied， carry---carried写出下列动词的过去式，过去分词：sing----sang----sungbuild----built----built1、speak （答案） 2、use （答案）
3、make （答案） 4、write （答案）
5、grow (答案) 6、plant （答案）
7、produce （答案） 8、ask （答案）
9、plan （答案） 10、send （答案）
11 、 build （答案） 12、invite （答案） 1、speak （spoke spoken） 2、use used used
3、make made made 4、write wrote written
5、grow grew grown 6、plant planted planted
7、produce produced produced 8、ask asked asked
9、plan planned planned 10、send sent sent
11 、 build built built 12、invite invited invited写出下列动词的过去式，过去分词：sing----sang----sungbuild----built----builte.g many people speak English.
主动语态变被动语态的步骤：
1、主动语态的宾语变为被动语态的主语；
2、主动句的谓语动词变为被动结构；
3、主动句的主语变为被动句的宾语，由by 引出，当不强调动
作的执行者时，常省略。把下列的句子变为被动语态的句子：
1、They speak English in Canada .(English….)
2、People use wood for making tables. （wood….）
3、The make computers in the USA.（Computers…）
4、They grow rice in South China.（Rice…）English is spoken in Canada.Wood is used for making tables.Computer are made in the USA.Rice is grown in South China.were planted The bridge waswas producedThe trees should be planted around the lake .The computer must be repaired now .Their mistakes should be corrected .The trees must be watered well.Homework
课后自觉复习Unit9-11，做完相应练习。
1、一般现在时被动语态（Unit9 Book3）
2、一般过去时被动语态（Unit10 Book3）
3、含情态动词的被动语态（Unit11 Book3）三、单项选择题：
( )1.Woolen clothes are used _______keeping us warm.
A.of B.by C.for D.in
( )2.Are these fridges made______?
A.in China B. in Chinese C.of China D.from Chinese
( )3.---Where are bananas _______?
---- _____ grown in South China.
A. grow, It's B.grown, It's C.grown, They're D.grew, They're
( )4.The League _____ in May , 1922.
A. is founded B.was founded C. is built D. was built
( )5.The strange thing with three legs_____.
A.used to drink B. are used for drinking C. is used
for drinking D. used for drinkingCACBC( )6.TV programmes can______ to the other side of the world.
A.send B. be sent C.make D.be made
( )7.Older people must_____ politely.
A. speak to B. be spoken C.be spoken to D. say to
( )8.The moon always _____ around the earth.
A. goes B. travels C. turns D. A,B and C.
( )9.Many people _____English in the world.
A.speak B. speaks C. spoke D. are spoken.
( )10.We must ____ our homework every day.
A. be finished B. finish C. are finished D. finishedBCDAB四、把下列句子变成被动句：
1.Chinese people built the Great Wall 2,000 years ago.

2. We must plant more trees next year.

3.Dalian produces big ships.

4.Farmers harvest rice in autumn .

5.We should clean our classroom every day.The Great Wall was built by Chinese people 2000 years ago.More trees must be planted next year.Big ships are produced in Dalian.Rice is harvested in autumn.Our classroom should be cleaned every day.