1. Unit 4 Amazing Science Topic 1 When was it invented ?
Section C

2. Review Invention Inventor Year car Karl Benz 1885 telephone
Alexander Graham Bell
1876 TV
John Baird
1926
Make dialogs like this:
A: When was the car invented?
B: It was invented in 1885.
A: Who was the car invented by?
B: It was invented by Karl Benz.

3. Pair work Make up dialogs
Pirates of the Caribbean
direct/by Gore Verbinski/in 2006
ShenzhouⅦ
launch /in China/in 2008
laptop
invent/in Japan/
in 1985

4. Work in groups and discuss the questions before reading.
What is an invention?
invention n.发明，创造
invent v. 发明，创造
inventor n. 发明者，发明家
An invention may be a new product or a new way of doing things.

5. Work in groups and discuss the questions before reading.
2.List some inventions that you know and their inventors.
computer lock television light bulb chopsticks crayon …
3.Do you think you can be an inventor? Why?
Yes, inventing is interesting and exciting and everyone can be an inventor.
v.列清单，把…列表
n.彩色铅笔（粉笔，蜡笔）等

6. Match the words with their meanings.
invention
crayon
thought
silly
brainstorm
evaluate
redesign
detailed
愚蠢的，傻的
发明，创造
彩色铅笔
想法，看法，主意
集思广益，动脑筋
重新设计
估值，评价，评估
详细的

7. 1b Read 1a and put the sentences in the correct places .
A. Draw your invention. B. Name your invention.
C. Test your invention. D. Use your imagination.
E. Plan and design your invention.
想像力 D
___ You can have wild and crazy thoughts. Remember that no idea is too silly. Many people laughed at the Wright brothers and said they would never fly. But they weren’t discouraged by what people said. That’s why now we have planes.

8. 1b Read 1a and put the sentences in the correct places .
_______ Careful planning is important in the invention process. This is the time to brainstorm for ideas and to evaluate them.
_______ Make a detailed drawing of your invention so others will understand how your invention works.
Make a model of your invention.
_______ See if your invention works as it is planned . If not, do more research, redesign it, and test it again.
_______ Every invention needs a name.
Share your inventions with others. A C B

9. 1c Read 1a again and fill in the blanks.
When you want to have an invention , first you must use your ________. Then you should plan and design it. Careful planning is very _________ in the invention. Third, you should make a _______ drawing of your invention and make a model of it. If you want to make your invention more successful, you must ______ it again and again. After that, you _______ your invention. Last, remember that you should _______ your invention with others.
imagination
important
detailed
test
name
share

10. 1a Read and understand.

11. Can you list it?
1. An invention – come about –solve a problem– the result of –crayons—none of –be made in –interesting, exciting – inventor –a few simple steps
2.Use your imagination– thought– silly – laugh at –be discouraged
3.Plan and design your invention– be important to –brainstorm– evaluate
4.Draw your invention—make a detailed drawing
5. Make a model
6.Test your invention --do more research
7. Name your invention
8. Share…with
Retell it

12. Discuss 2.Which is the least important invention ?Why?
gun
balloon
robot
2.Which is the least important invention ?Why?
1.What are the top 3 most important inventions? Why ?
keyboard

13. 2 Discuss with your partner which of the followings are the top 3 most important inventions and which is the least important invention. Then explain your choice to the class.
Example:
I think zero is the most important invention. It is said that it was invented by an Indian. It is a very interesting number. For example, I have only ten yuan. If you add five zeros after it for me, haha, I will be a rich man.

14. 1. How do you come to the idea of your invention?
3 Do you know how to be an inventor? Do you want to invent something? Write a passage about your invention. The following questions may help you .
1. How do you come to the idea of your invention?
2. What does it look like?
3. What is it made of/from?
4. What’s it used for?
5. What are you going to name it?
Before writing, think more clearly and tell about the looks, uses, advantages and disadvantages of an object.

15. You can write it like this:
My invention is a robot. It is called “Superman”. There is a computer inside its body. It looks like a tiger. When you see it for the first time, you may be frightened. In fact, it is gentle and polite. It can help us do housework, such as cleaning a room, washing dishes, and making the bed. When the room is dirty, it will begin to work at once. It can also watch over a house instead of humans. It is careful, clever and hard-working. In short, this robot is very useful to us, though it can’t run or speak.

16. Complete the following words according to their first letters and meanings.
i________ n. the creation of something in the mind; the act of inventing
c________ n. a rod(棒） of colored wax（蜡） used for drawing
t________ n. an idea that you have in your mind
s________ adj.foolish
b________n. small thin inflatable(可充气的） rubber bag with narrow neck
g________ n. a weapon（武器） from which bullets（子弹） or other things are fired
r________ n. a machine that can move automatically（自动地）
k________ n. the set of keys that you press in order to operate it
nvention
rayon
hought
illy
alloon un
obot
eyboard

17. Exercises 1.People used the light bulbs widely in the past. (改为被动语态）
The light bulbs ______ ______ _______ by people in the
past.
2. We can launch spaceships to explore other planets. (改为被动语态）
Spaceships ______ ____ _________to explore other planets.
3. Gore Verbiniski directed the movie Pirates of the Caribean in America . (对划线部分提问）
_______ ______ Gore Verbiniski ________ the movie Pirates of the Caribbean?
4. The MP3 player was developed around (对划线部分提问)
________ ________ the MP3 player _______________?
were widely used
can be launched
direct
Where did
When was
developed

18. Summary We learn : 1.Some words: invention, crayon, thought,
silly, balloon, gun, robot, keyboard
2.Some phrases: laugh at，come come out，
the result of …， none of …
3. Some sentences:
Inventing is interesting and exciting and everyone
can be an inventor .
We can : Talk about the process of an invention.
2. Write a passage about an invention.

19. Assignment
Read 1a.
Memorize the useful expressions and key sentences that we learn today.
Finish Section C in your workbook.
Preview Section D.

20. Thank you !