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(共13张PPT)
Grammar Focus-4c
Unit 6
When was it invented
Grammar Focus
When was the zipper invented It was invented in 1893.
Who was it invented by It was invented by Whitcomb Judson.
When was tea brought to Korea It was brought to Korea during the 6th and 7th centuries.
What is the hot ice-cream scoop used for It’s used for serving really cold ice-cream.
Active Voice : Alexander Graham Bell invented the telephone in 1876. Passive Voice: The telephone was invented (by Alexander Graham Bell) in 1876.
语法重点：被动语态 (Passive Voice)
be+动词过去分词
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:
肯定句
否定句
疑问句
结构:
主语+was/were+及物动词的过去分词（ + by…）
主语+was/were + not+及物动词的过去分词（+ by…)
Was/Were+主语+及物动词的过去分词（+by …)
特殊疑问词+was/were+主语+及物动词的过去分词（+by...)
例句翻译与句型转变：
①电脑是在1971年被John von Neumann发明出来的。
②电话是在1885年发明出来的。
③茶是被意外发明出来的。
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
Practice:
Many people speak English. (主动语态)
The boy broke the window yesterday. (主动语态)
I bought a book yesterday.(主动语态)
Bell invented the telephone.(主动语态)
The students clean the classroom every day.(主动语态)
主动句变为被动句4步骤：
1. 主句宾变被句主
2. 主句谓语变被动(be+过去分词)
【人称和数随主语的变化，动词的时态不变】
3. 主句主变by加宾
4. 其它成分都不变（定语、状语）
动词原形 过去分词
bring
build
buy
catch
choose
cost
cut
动词原形 过去分词
do
draw
dream
drink
drive
eat
fall
Fill in the chart
brought
built
bought
caught
chosen
cost
cut
done
drawn
dreamt/dreamed
drunk
driven
eaten
fallen
动词原形 过去分词
find
forget
give
go
grow
have
hear
动词原形 过去分词
hide
hurt
keep
know
leave
light
make
found
forgotten
given
gone
grown
had
heard
hidden
hurt
kept
known
left
lit/lighted
made
动词原形 过去分词
pay
put
read
say
see
send
set
动词原形 过去分词
show
take
teach
tell
think
wear
write
paid
put
read
said
seen
sent
set
shown
taken
taught
told
thought
worn
written
4a Rewrite the sentences using the passive voice.
They sold the fridge at a low price.
____________________________________________________
2. Somebody stole my camera from my hotel room.
____________________________________________________
3. Where did you take these photos
____________________________________________________
4. Our parents advised us not to go out alone.
_____________________________________________________
5. Different writers translated the book into different languages.
_______________________________________________________________
The fridge was sold at a low price.
My camera was stolen from my hotel room (by somebody).
Where were these photos taken
We were advised not to go out alone by our parents.
The book was translated into different languages by different writers.
4b Complete the sentences with the correct forms of
the verbs in the box.
eat lock like ring invite break tell bring
You _____________ to the party last night, weren’t you Why didn’t you go
2. The earthquake happened all of a sudden, but luckily the villagers _____________ to a safe place.
3. The door ___________ when we arrived, so we ______ the bell.
4. The students ________ not to eat or drink in class. But Ruby _______ the rule when she started eating a biscuit in science class.
5. The cookies _________ by the hungry kids in less than 20 minutes, and they really _____ them.
were invited
were brought
was locked
rang
were told
broke
were eaten
liked
4c Decide whether active or passive forms should be used in these sentences. Write the correct forms in the blanks.
The telephone _____________(invent) by Alexander Graham Bell. He __________ (born) in 1847. Mr. Bell ________ (work) on the invention of the telephone with Thomas Watson. In 1875, Mr. Bell _______ (learn) how to send musical notes through an instrument similar to a telephone. Finally, the telephone ____________ (invent) in 1876. The first sentence that ________ (say) on the telephone by Mr. Bell was “Mr. Watson, come here; I want to see you.” Today the telephone ________ (use) around the world.
was invented
was born
worked
learned
was invented
was said
is used
Ⅰ. 单项选择。
1. — Today Chinese is becoming more and more popular.
— It _______ in many schools around the world.
A. teaches B. is teaching C. has taught D. is taught
2. We _______ to close the windows before we left the lab.
A. tell B. told C. are told D. were told
3. — Did you hear that water in Tai Lake smelt terrible
— Yes. In fact, it _______. That's all because of the
people and the factories around.
A. polluted B. was polluted C. has polluted D. will pollute
D
Exercises
D
B
Ⅱ. 用所给动词的适当形式填空。
1. The pizza was ______ (make) by me. Would you like to have some
2. The Great Wall is ________ (know) all over the world.
3. This story was ______ (tell) by my grandmother last night.
4. Was a new science museum ___(build) in your hometown last year
5. No student is _______(see) in the playground.
6. History is _________ by the people. (make)
7. He is often _________ to do the work by the teacher. (ask)
8. The book _________________ by him last year. (write)
9. The radio ______________ last week. (repair)
made
known
told
built
seen
made
asked
was written
was repaired
Ⅲ. 用所给动词的适当形式填空。
Roses have a long history. It 1. ______ ( say) that they have been on the earth for at least 35 million years.
Roses 2. _________ (use) to make perfumes (香水) because of their nice smell. And they 3. ___________ (regard) as a symbol of love in many countries. There are lots of stories of roses. Here’s the most famous one.
Roses 4. ___________ (create) by Aphrodite, Goddess of Love, according to the ancient Greek mythology (神话). There 5. ____ (be) only white roses in the world. But did you know how red roses came into being Let me tell you. One day, Aphrodite’s lover Adonis 6. ________ (hurt) by a wild pig. Hearing the bad news,Aphrodite 7. ________ (hurry) to save him. On the way, her feet 8. _________ (hurt) by the thorns (刺) of a rose bush. Her blood 9. ______ (start) to flow (流) and then the white flowers on the bush 10. ___________ (turn) into red ones.
is said
are used
are regarded
were created
were
was hurt
hurried
were hurt
started
were turned

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