1. Unit 6 When was it invented?
Section A

2. Lead in Talk about the inventions(发明).
Which one do you think is the most helpful in our daily life?

3. 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) 2 4 1 3

4. c b d a a c d b 1b Listen and match the inventions with the years.
1876
1885
1927
1971 a a
When was the
...invented? c d b

5. 1885 1876 1927 1971 1c PAIRWORK A: When was the telephone invented ?
B:I think it was invented in 1876.

6. 2a Listen and number the inventions[1-3] in the order you hear them.
___ shoes with
special heels
___ hot ice-cream scoop,
runs on electricity
___ shoes
with lights
通上电

7. What is it/are they used for?
2b Listen again and complete the chart below.
Invention
What is it/are they used for?
______ the style of the shoes
seeing _________
_______really cold ice-cream
shoes with special heels shoes with lights
hot ice-cream scoop
changing
in the dark
serving 2c
Make conversations using the information in 2b.
A: What are they used for?
B: They’re used for...

8. 2d Role-play the conversation.
Paul: Hey Roy, the subject for my school project is “Small inventions that changed the world.” Can you help me think of an invention?
Roy: My pleasure! Let me think ... hmm ... I know! The zipper!
Paul: The zipper? Is it really such a great invention?
Roy: Think about how often it’s used in our daily lives. You can see zippers on dresses, trousers, shoes, bags ... almost everywhere!
改变世界的
Paul: Well, you do seem to have a point ...
Roy: Of course! I thought about it because I saw a website last week. The pioneers of different inventions were listed there. For example, it mentioned that the zipper was invented by Whitcomb Judson in But at that time, it wasn’t used widely.
Paul: Really? So when did it become popular? Roy: Around 1917.

9. 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. 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.
In 1893.
Around 1917.

10. An Accidental Invention
（一个偶然的发明）
1.When was tea first drunk?
Did you know that tea, the most popular drink in the
world (after water), was invented by accident? Many
people believe that tea was first drunk about 5,000
years ago. It is said that a Chinese ruler called Shen
Nong was the first to discover tea as a drink. One day
Shen Nong was boiling drinking water over an open
fire. Some leaves from a tea plant fell into the water
and remained there for some time. It produced a nice
smell so he tasted the brown water. It was quite
delicious, and so, one of the world’s favorite drinks
was invented.
About 5,000 years ago.
2. How was tea invented?
It was invented by accident.
fall into 落入
behind 落后
down 摔倒
off 掉下
asleep 入睡
in love with 爱上
fall(fell-fallen)构成的短语：

11. A few thousand years later, Lu Yu, “the
4. What is Cha Jing about?
3. Who is called “the saint of tea”?
A few thousand years later, Lu Yu, “the
saint of tea”, mentioned Shen Nong in his
book Cha Jing. The book describes how
tea plants were grown and used to make
tea. It also discusses where the finest tea
leaves were produced and what kinds of
water were used.
Lu Yu.

12. It is believed that tea was brought to Korea
and Japan during the 6th and 7th centuries.
In England, tea didn’t appear until around
1660, but in less than 100 years, it had
become the national drink. The tea trade
from China to Western countries took place
in the 19th century. This helped to spread(传
播) the popularity of tea and the tea plant to
more places around the world. Even though
many people now know about tea culture,
the Chinese are without doubt the ones who
best understand the nature of tea.
5. When was tea brought to other countries?
Korea and Japan: 6th and 7th centuries England: 1660

13. 3a Reading Lu Yu and his book Cha Jing Paragraph 1
Read the passage quickly and match each paragraph with it’s main idea.
Lu Yu and his book Cha Jing
How tea spread to other countries
How tea was invented by accident
Paragraph 1
Paragraph 2
Paragraph 3

14. invent, drink, bring, produce, trade
3c Complete the sentences with the correct forms of the verbs in the box.
invent, drink, bring, produce, trade
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.
invented
drunk
produced
brought
traded

15. 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: Alexandar Graham Bell invented the telephone in 1876.
Passive Voice: The telephone was invented (by Alexander Graham Bell) in 1876.

16. Grammar The simple past passive voice 一般过去时被动语态 被动语态的构成:
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+ p.p.(及物动词的) 过去分词
Grammar

17. 主动语态变被动语态的结构图:
谓语动词
过去式
Bell invented the telephone in 1876.
The telephone was invented by Bell in 1876. 主语 宾语
时间状语 主语
谓语动词的
过去分词 宾语
时间状语

18. Practice 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 盾牌
were used
was put
was spoken
were allowed

19. 4a Rewrite the sentences using the passive vocie.
at a good price 以合理的价格
at a high price 以高的价格
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.
以低的价格
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.
translate…into把…译为…

20. eat, lock, like, ring, invite, break, tell, bring
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
rang
was locked
were told
broke
were eaten
liked

21. 4c Decide whether active or passive forms should be used
in these sentences. Write the correct forms in the blanks.
was invented
The telephone ______________(invent) by Alexander Graham Bell.
He____________(born) in 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 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 born
worked
learned
was invented
was said
is used