一般现在时被动语态讲解及练习.ppt

Unit 5
Section A
Grammar Focus
Is it made of silver?
It was made in Thailand.
What is the model plane made of?
Where is tea produced in China?
How is it grown?
It is planted on the side of mountains.
They are picked by hand and then are sent for processing.
Read the sentences below, paying attention to the underlined parts.
Passive Voice
被动语态(Passive Voice)
结构: be + V-.
am / are / is + 动词的过去分词
一般现在时的被动语态:
Many people speak English.
主动句与被动句之间的转换
English is spoken by many people.
主语谓语动词主动语态的过去式宾语
主语谓语动词被动语态的过去分词介词+ 宾语
主动句变为被动句所遵循的4个步骤:
1. 把原主动句中的宾语变为被动句的主语。
2. 把动词变为被动形式即be+过去分词,并注意其人称和数随主语的变化,而动词的时态则保持不变。
3. 原主动句的主语如需要则放在by后面以它的宾格形式出现(注代词的宾格),如不需要则可省略。
4. 其它的成分(定语、状语)不变。
People play football all over the world.
2. The old man on TV tells a story on Sunday.
3. Students listen to the kind teacher carefully.
Football is played all over the world by people.
A story is told by the old man on TV on Sunday.
The kind teacher is listened to by students carefully.
把下列的主动句变为被动句。
1) Sunglasses __________ (use) for protecting people’s eyes.
2) A picture _________ (put) up on the blackboard.
3) French ___________ (speak) in France.
are used
is put
is spoken
用所给动词的正确形式填空。
4) Which language _______ the most widely _______ (speak) in the world?
5) The students _____ often _____ (tell) to take care of their desks and chairs.
6) Vegetables, eggs and fruits _________ (sell) in this shop.
is
spoken
are
told
are sold
1. Tea is grown in South China.(改为主动语态)
People _______ _________ in South China.
2. People use metal for making machines. (改为被动语态)
Metal ________ _________ ______ making machines.
grow
tea
按要求改写下列句子,一空一词。
is
used
for
3. They produce silk in Suzhou. (改为被动句)
Silk _________ _________ in Suzhou.
4. We call maths the language of science. (改为被动句)
Maths _________ _________ the language of science.
is
produced
is
called