What are they? They are four inventions of China gun powder paper making printing compass.
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Transcript of What are they? They are four inventions of China gun powder paper making printing compass.
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What are they? They are four inventions of China
gun powder
paper making printing
compass
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When was the light bulbs invented?
Who was the telephone invented by ?
light bulbs
It was invented in 1880.
It was invented by Edison.
1880 Edison
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When was the TV invented?
Who was the alarm clock invented by ?
It was invented in 1788.
It was invented by Eric-Sha Shu Wa
alarm clock
Eric-Sha Shu Wa (埃里克 · 沙舒瓦) 1788
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Bill Hewlett 1971
calculator calculator calculator calculator
calculator
When was the TV invented?
Who was the calculator invented by ?
It was invented in 1971.
It was invented by Bill Hewlett
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When was the computer invented?
Who was the computer invented by ?
1976 Cray
It was invented in 1976.
It was invented by Cray
computer
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When was the car invented?
Who was the car invented by ?
1885 Henry Ford
It was invented in 1885.
It was invented by Henry Ford
car
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When was the airplane invented?
Who was the airplane invented by ?
1907 Wright
It was invented in 1907.
It was invented by Wright
airplane
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When was the TV invented?
Who was the TV invented by ?
It was invented in 1927.
It was invented by Baird.
Baird 1927
television
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When was the TV invented?
Who was the telephone invented by ?
It was invented in 1876.
It was invented by Bell.
Bell 1876
telephone
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When was the TV invented?
It was invented in 1876.
Who was the telephone invented by ?
It was invented by Bell.
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结构 : be + V-p.p.
am / are / is + 动词的过去分词
was / were + 动词的过去分词
一般现在时的被动语态 :
一般过去时的被动语态 :
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一、英语的谓语动词有两种语态 :
We speak English.
主语 谓语 宾语
English is spoken by us.
主语 谓语 宾语
宾变主 , 主变宾 , 前加 by;
动变被 , 看清 be, 结构分别 be+ pp
主动语态
被动语态
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主变被解题步骤 :
1. 找宾语——即动作的承受者。
They make shoes in that factory.
Shoes
2. 判断宾语的单复数 ——即 be 动词的单复数。
are
were
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。
made
5. 修改原句的主语——即 by+ 主语 / 宾语。
by them.
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Tom broke the window. The window was broken by Tom.
Tom broke the windows. The windows were broken by Tom.
He broke the windows. The windows were broken by him.
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Many people speak English. ( 主动语态 )
English is spoken by many people
The naughty boy broke the window yesterday.
( 主动语态 )
The window was broken ( by the naughty boy)
yesterday.
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We bought some books.
主动句与被动句之间的转换
Some books were bought ( by us )
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
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被动语态的几种句型
肯定句 主语 + be + 过去分词 + (by…)
A sweet song was sung by her on the stage.
2 否定句 主语 + be + not + 过去分词 + (by…)
3 一般疑问句 Be + 主语 + 过去分词 + (by…)?
A sweet song wasn’t sung by her on the stage.
Was a sweet song sung by her on the stage?
4 特殊疑问句 疑问词 + be + 主语 + 过去分词 + (by…)?Where was a sweet song sung by her?
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We usuallyWe usually hear hear himhim play play in the next roomin the next room..
HeHe isis usually usually heardheard to to playplay in the next room. in the next room.
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HeHe rides rides the motorbike to his factory every day.the motorbike to his factory every day.
The motorbike The motorbike is riddenis ridden to his factory every day. to his factory every day.
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HeHe bought bought his friend some fruits yesterday. his friend some fruits yesterday.
His friend His friend was boughtwas bought some fruits yesterday. some fruits yesterday.
Some fruits Some fruits were boughtwere bought for his friend yesterday. for his friend yesterday.
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1.People use knives for cutting things.
Knives ______ ______ for cutting things.
2.The students clean the windows of their
classroom twice a month.
The windows of their classroom______
_______ twice a month.
are used
are
cleaned
句型转换
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3.I found the ticket on the floor.
______ ______ ______ ______ on the
floor.
4.I told her to return the book in time.
She ______ _______ to return the book
in time.
The ticket was found
was told
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5. His doctor made him have only two
meals a day.
He ______ _______ _______ _______
only two meals a day.
6.Now people can use computers to help
them.
Now computers _______ ______ ______
to help them.
was made to have
can be used
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1. He wrote an article last week.
An article was written by him last week.
2. The people make history.
History is made by the people.
把下列的主动句变为被动句。
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3. Do people use Chinese only in China?
Is Chinese used by people only in China?
4. They didn’t visit the city two years ago.
The city wasn’t visited by them two years ago.5. Where did you make them?
Where were they made by you?
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