Unit 6 When was it invented? Section A
Talk about the inventions(发明).
Which one do you think is the most helpful in our daily life?
Lead in
computer
car
calculator
laptop
telephone
cell phone
radio
Presentation
1a
Look at the things below. In what order do you think they were invented? Discuss them with your group. Then number them [1-4](1=first,4=last)
1
2
3
4

1b Listen and match the inventions with the years.
a
b
c
d
When was the
...invented?
1876

1885

1927

1971
a
c
b
d
1c PAIRWORK
A: When was the telephone invented ?
B:I think it was invented in 1876.
2a Listen and number the inventions[1-3] in the order you hear them.
3
1
2
___ shoes with
special heels
___ shoes
with lights
___ hot ice-cream
scoop runs on
electricity
2b Listen again and complete the chart below.
shoes with special heels shoes with lights
hot ice-cream scoop
2c
Make conversations using the information in 2b.
A: What are they used for?
B: They’re used for...
2d Role-play the conversation.
Read the passage quickly and answer the questions.
What is the subject for their school project?

2. What kind of invention does Roy think of?

3. Why does Roy think it is a great invention?

4. Who and when was the zipper invented?

5. When did the zipper become popular?
Small inventions that changed the world.
The zipper.
Because it is often used in our daily lives.
Whitcomb Judson in 1893.
Around 1917.
What will you do if you are really thirsty?
You’d like to drink these drinks.
v. 喝；饮 n. 饮料
What’s the most traditional drink in China?
Tea has a long history.
Tea was first drunk nearly
5, 000 years ago.
boiling drinking water
leaves
It smells pleasant.
It tastes delicious and …
Who was tea invented by?
It was invented by the Chinese ruler called Shen Nong．
Shen Nong
How was it invented?
boiling water over an open fire
fell into …and remained…
produced a nice smell
tasted the brown water —tea
It was invented by accident.
have a point
by accident
it is said/believed that
be brought to sp.
take place
even though
without doubt
Language points
有道理
偶然；意外地
人们说/相信
被带到某地
发生；出现
即使
毫无疑问；的确
3a Reading
Read the passage quickly and match each paragraph with it’s main idea.
Paragraph 1

Paragraph 2

Paragraph 3
Lu Yu and his book Cha Jing

How tea spread to other countries

How tea was invented by accident

3b Read the passage again and answer the questions.
When was tea first drunk?

2. How was tea invented?

3. Who is called “the saint of tea”?

4. What is Cha Jing about?
5. When was tea brought to other countries?
Nearly 5,000 years ago.
It was invented by accident.
Shen Nong.
How tea plants were grown and used to make tea.
Korea and Japan: 6th and 7th centuries England: 1660
3c Complete the sentences with the correct forms of the verbs in the box.
1.One of the world’s favorite drinks was________
by accident.
2.Tea was first ________ by Shen Nong 5,000 years
ago.
3.A nice smell was _________ when the tea leaves
dropped into the hot water.
4. Tea was__________ to Korea and Japan during the
6th and 7th centuries.
5.Tea is now ________ between many different
countries.
invent, drink, bring, produce, trade
invented
drunk
produced
brought
traded
Grammar Focus
The simple past passive voice
一般过去时被动语态
一般过去时被动语态表示过去经常性、习惯性被动动作或过去某一时刻发生的被动性动作，与主动语态相比,被动语态中主语是谓语动作的执行者。
被动语态的构成:
助动词was/were+ (及物动词的) 过去分词
was (were) + done
Grammar
Bell invented the telephone in 1876.

The telephone was invented by Bell in 1876.
主动语态变被动语态的结构图:
主语
谓语动词
过去式
宾语
时间状语
主语
谓语动词的
过去分词
宾语
时间状语
用所给动词的正确形式填空：
1. The bike __________(fix) up by Xiaoming yesterday.
2. Shields ________ (use) for protecting people’s body in the past.
3.Last year, a picture _________(put) up on the blackboard.
4. She said French______________ (speak) in France.
5. Teenagers _______________(allow) to choose their own clothes two years ago.
was fixed
were used
was put
was spoken
were allowed
Practice
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 riters translated the book into different languages.
_____________________________________________
The fridge was sold at a low price.
My camera was stolen from my hotel room.
Where were these photos taken?
We were advised not to go out alone.
The book was translated into different languages.
4a Rewrite the sentences using the passive vocie.
4b Complete the sentences with the correct forms of the verbs in the box.
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.
eat, lock, like, ring, invite, break, tell, bring
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 said
is used
was invented
Suppose you are alone on a tiny island. What inventions would you like to have on the island with you? Write a short passage.
Homework