1. Unit 3 Computers

2. Warming up
Guessing game

3. 《英语学习辅导报》出品
With the development of science and technology, many new things appear in human being’s life.
Let’s guess what they are:
《英语学习辅导报》出品

4. Who Am I
1. With me you can watch different programmes just at home. I’m a machine that has a screen with moving pictures and sounds. But watching me too much is bad for your eyes.
TV set

5. 2. I am a machine which moves very fast on four wheels
2. I am a machine which moves very fast on four wheels. You need a license(执照) and must be very careful when you drive me. Rolls Royce, Benz and BMW are some famous kinds of me.
car

6. 3. I am a machine which is a good helper in doing house work.
I wash clothes for people.
Who am I?
washing machine

7. 4. A machine that you use to talk to other people even in a far-away place. We are connected by wire or radio. Now each of us often has a number.
Who am I?
telephone

8. 5.It is a machine, which you can use to type your homework, draw pictures, play games, watch movies, listen to music, communicate with your friends, gather information…
Computer

9. Pre-reading
What do you know abour computers ?

10. 7 3 4 5 6 8 1 2 monitor screen host computer speaker keyboard mouse
camera 7
monitor
screen 3 4
host computer 5 6
speaker 8 1 2
Wireless
controller
keyboard
mouse

11. New words and expressions
计算机器
分析机
穿孔卡
技术革命
通用机器
数学问题
人工智能
晶体管
存储容量 网络
万维网
calculating machine
Analytical Machine
card with holes
technological revolution
universal machine
mathematical problems
artificial intelligence
transistor
memory
network
World Wide Web

12. Task 1 Skimming 1. Who is the speaker in this story? A computer.
2. What’s the general idea of the passage?
The passage is mainly about the history
And development of computers. It is also
about the relationship of computers and
humans.

13. According to the time How did the writer organize the text?
Third reading：
How did the writer organize the text?
According to the time

14. 2.Fill in the blanks Timeline
The computer began as a calculating machine
1642:_____________________________________
1822:The Analytical Machine was made by Charles Babbage.
_______:_______________________________
___________________________
1940s:_________________________________
_____: The first family of computers was connected to each other.
1970s:_________________________________
Now:_____________________________________
1936
The computer grew rapidly both in size and in brainpower.
The computer had grown as large as a room
1960s
Computers were used in offices and homes
Computers connect people all over the world together.

15. Charles Babbage invented an Analytical machine in 1822.
3. The passage mentiones two persons.Who are they ?Why are they mentioned?
Charles Babbage invented an Analytical machine in 1822.
Alan Turing, the computers’ real father,wrote a book about how the computer could be made to work as a “universal machine” to solve any difficult mathematical problem.

16. Charles Babbage
MATHEMATICIAN
（英国数学家）

17. Father of computer science
Alan Turing

18. Scanning: Complete the chart.
Paragraph1
Paragraph2
Paragraph3
Topic senten
-ce
Support-ing details
calculating
machine
tubes
communications
finance
Over time I have been changed quite a lot.
These changes only … as my memory improved.
Since the 1970s many new applications
…for me.
transistors
analytical machine
trade
chips
robots
universal machine
network
mobile phones PC
World Wide
Web
----www
medical
operations
laptop
space robots

19. Competitong(ASK and Answer)

20. Q1: How did the computer work as
an Analytical Machine?
The computer “think” logically and produce an answer quickly by using cards with holes.

21. Q2: What makes the computer totally change his size?
First tubes
Then transistors
At last chips.

22. Q3: In how many ways do we say the computer changed? What are they?
Size:
Intelligence:
Speed:
Function:
People’ opinion:
smaller
cleverer
quicker
calculating…dealing with …, communicating with…
clever & useful

23. Post-reading How did computers develop? Universal machine Calculating
Analytical
machine
Internet
Computer
Artificial intelligence

24. Retell the passage: I began as a _________ _______ in 1642
in France. In 1822 I was built as an
________ _______. Then in 1936 Alan Turing
wrote a book and built a _________ ______.
As time___ ___, I was made ______ but my memory got ______ and _____. In the 1960s they gave me a family connected by__ ______. Now people call it the Internet. I was used in ______ and ______ in the 1970s. Since my birth I have truly been built to serve the human race.
Retell the passage:
calculating machine
Analytical Machine
universal machine
went by
smaller
larger
larger
a network
offices
homes

25. Fill the blanks The text is about the history of _______
At first,the computer was used ______ a calculating machine And it was very ________. As the years have ____ ____ , computers have been made _____ ____ _______ (越来越小) and it has many new____________ .Now,people can use computers to ____ ________information and communicate ________(介词) each other around the world by the ________.
computers as
big
gone by
smaller and
smaller
applications
deal with
with
Internet

26. Discussing What are the uses of computers in our daily life?

27. Do shopping Communication Medical operations Do business
Control robots
DO office work
Education
Entertainment
Search information
Control space rockets

28. Discussion
Advantages and disadvantages of the computers.

29. Disadvantages Advantages we can communicate with friends
listen to music
see films & watch news
play games
do shopping
save a lot of time
do a lot of useful things
Disadvantages
Some people especially the teenagers abandon (沉迷于) themselves to the computer games and chatting on the Internet. As a result, they have little time to study .
Some people use the computer wrongly.

30. Conclusion
There is no doubt that the computer has two sides ,too. If we make good use of it, it will make our lives more colorful and convenient. But don’t lose yourself in playing computers. Just remember: Keep fit, study well and work hard.

31. What’s next?
work for us in Mars(火星)

32. work in wars (战斗)
carry things

33. 仿真机器人
entertainment 娱乐
What do you think will be the next development?

34. Homework:
Read & retell the text
Bye-bye