(共21张PPT)
Unit 6 When was it invented.
Section A grammar focus-4c
语法课
Tea ___________ (invent) by a Chinese ruler Shen Nong by accident about 5000 years ago.
Lu Yu_________(call) the saint of tea. His book Cha Jing describes how tea plants ___________(grow) and used to make tea. It also discusses where the finest tea leaves _____________ (produce) and what kinds of water _________ (use).
Tea ___________ (bring) to other countries by tea trade .The Chinese understand tea best.
were used
was brought
was invented
was called
were grown
were produced
Fill in the blanks
请说出它们所表达的意思。
它们与一般现在时的被动语态有什么区别？
这些谓语动词在结构上有什么特点？
were used
was brought
was invented
was called
were grown
were produced
Think
2
3
1
被动语态
be动词+过去分词
一般现在时被动语态
一般过去时被动语态
am/is/are+过去分词
was/were+过去分词
I __________ (ask) to clean my bedroom every day by my mother.
The window ________________ (clean) just now. It looks quite bright now.
am asked
was cleaned
小试牛刀：完成下面句子
Now English _____________ (speak) by more and more people all over the world.
The lost by ____________(find) at the street corner last night.
Rice _________ (grow) in the south of the country.
The bridge ____________ (build) by local villagers two years ago.
Usually computers ___________(use) to get information on the Internet
My advice on how to save water ______________(accept) by my class last Monday.
is spoken
was found
is grown
was build
is used
was accepted
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: Alexandar Graham Bell invented the telephone in 1876. Passive Voice: The telephone was invented (by Alexander Graham Bell) in 1876. Read Grammar Focus and find out the common features.
1.肯定句: 主语 + was/were + V-ed + (by…)
The news was published by the government.
2.否定句: 主语 + was/were + not + V-ed + (by…)
3.一般疑问句: Was/Were + 主语 + V-ed + (by…)
The news wasn’t published by the government.
Was the news published by the government
特殊疑问句: 疑问词 + was/were + 主语 + V-ed + (by…)
When was the news published by the government
一般过去时被动语态结构:“主语+ was /were +及物动词的过去分词(+by+动作的执行者).”常见几种句型结构：
一、一般过去时被动语态句子结构
用法 例句
不知道或没必要指出
动作的执行者
These books were written for children.
这些书是为儿童写的。
强调或突出动作的
承受者
The book was written by Mo Yan.
这本书是由莫言写的。
动作的执行者不是人
而是无生命的事物
Many traffic accidents were caused by
careless driving.
很多交通事故是由粗心驾驶造成的。
二、被动语态的用法：
Ne Zha is enjoyed by lots of people. We are all moved by him. At first, he was not allowed to go out. He also had no friends.
He was cheated by Shen Gongbao to harm his parents. But in the end, he saved the people in Chentang but lost his life. I am sure he'll be saved in Ne Zha II. We are looking forward to seeing it.
找出含被动语态的句子
一般现在时被动语态
一般过去时被动语态
一般将来时被动语态
在被动语态中，主语是动作的承受者，
结构是_______________
动作的发出者用___________，可省略。
is enjoyed （_______）by lots of people.
was sent to (_______) run for the Oscars last year.
will be saved(_______) in the second version.
by sb.
被喜爱
被送去
被救
be +done
He was not allowed to go out.
He was cheated by Shen Gongbao.
He is enjoyed by lots of people.
We are all moved by him.
He'll be saved in Ne Zha II.
一般过去时：
____________________
强调过去某事被做
was/were +done+ by sb.
一般现在时:
____________________
强调现在某事被做
am/is /are + done + by sb.
一般将来时：
___________________
强调将来某事被做
will+ be done
be going to +be done
三种时态的被动语态
by之后加人称代词宾格
+ by sb.
Grammar Focus
主动变被动
Cai Xukun plays basketball.
主动语态
The basketball is played by Cai Xukun.
被动语态
口诀：
1. 宾语提前
2. 原主变宾(前加by)
3. 动词变“be done”
1. They visit our school every year. (变被动语态)
——————————————————
2. They cover the desk with newspapers.(变被动语态)
——————————————————
Our school is visited by them every year.
The desk is covered with newspapers by them.
Rewrite the sentences using the passive voice.
1. 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 (by them) at a low price .
My camera was stolen (by somebody)from my hotel room .
Where were these photos taken (by you)
We were advised by our parents not to go out alone.
The book was translated into different languages by different writers.
4a
eat, like, invite, tell, lock, ring, break, bring
Complete the sentences with correct forms of the verbs in the box.
1. 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
broke
were told
were eaten
liked
v. 锁上 n. 锁
v. (使)发出钟声或铃声；打电话
4b
Decide whether active or passive forms should be used in these sentence. 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
4c
Report: My favorite invention is ____I think it is______It was invented in________by______It’s used for _____
I would like to invent ______ It is/They are used for_______because____________
What When Who Be used for
1903
The Wright brothers
Traveling
The plane
To be a young inventor!
成为小小发明家！
Talk about these questions in groups.
1. What’s your favorite invention
2. What would you like to invent most
3. Why would you like to invent it/them
提示词： machine 机器
“Four New Chinese inventions” selected by foreigners.
high-speed railway
Alipay
shared-bikes
shop online
They make our life so convenient!
These days students in some schools ______ not to use mobile phones.
A. ask B. asked C. are asked D. were asked
A lot of trees ______ on the hill yesterday.
A. are planted B. will be planted
C. have been planted D. were planted
When Tim _______ why he was late for school, he just kept silent.
A. was asked B. asked C. was asking D. is asking
Every day, too much water _______ in our school. We should save it.
A. is wasted B. wastes C. was wasted D. wasted
Exercise
C
D
A
A
被动语态
肯定句
否定句
一般疑问句
特殊疑问句
主语 + be + done + 其他内容
主语 + be + not + done + 其他内容
Be + 主语 + done + 其他内容
特殊疑问词+ be + 主语 +done+其他
易错点一：
易错点二：
Thank you for listening
