高一英语《Unit3 Computers》课件

(共22张PPT)
Warming up &Reading
Let’s play a guessing game!
Remember:
They are all things that are used in our daily life.
Choose a number
Good luck!
I was born in China. 60
●
I am made of wood or plastics. 30
●
Many people used me for calculating(计算) in the past. 50
●
But now I am a bit lonely because they don’t like me any more. 20
●
abacus
●
I am very small and clever. 60
●
At school, a lot of students use me when solving mathematical(数学的) problems. 30
I can work out difficult sums(总数) quickly. 50
●
calculator
●
I have a screen with pictures and sounds. 80
●
I’m made to work with my “artificial intelligence(人工智能)”. 30
●
You can also get information all over the world from me. 70
●
I was born as a result of the technological revolution(技术革命). 60
computer (laptop)
●
I’m a machine that you use to talk to other people even in a far-away place. 80
●
You can take me anywhere with you in your pocket. 70
●
I’m most liked by businessmen and officials. 30
●
I can also work as a PC. 50
●
New applications(用途) are being added to me every year. 40
PDA
●
I’m a machine. 80
●
I can do many things for people and even finish jobs that people are not able to. 70
●
I was once sent to explore the moon and Mars. 40
●
I look like a human. 50
robot
Pre-reading
Who am I
What will the speaker tell us about
Predict:
Skimming
Who is the speaker
Scanning
Years Changes
1642
1822 The Analytical Machine was made by Charles Babbage.
1940s
The first family of computers was connected to each other.
1970s
Now
1936
1960s
Comprehending
Para 1:
Topic sentences:
Para 2:
Para 3:
changes over time
memory improved
new applications
Language
1. Although I was young I could simplify difficult sums.
Make the right choices:
A. Although I was young I could work out simple problems.
B. Although I was young I could work out large numbers easily.
2. Since the 1970s many new applications have been found for me.
A. Since the 1970s people have discovered new use for me.
B. Since the 1970s people have found me many new rules.
Passive voice(现在完成时的被动)
I have been changed quite a lot over time. 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 went by, I was made smaller. Since the 1970s, I have been used in offices and homes, first as a ___ and then as a _______.
Listening
calculating machine
analytical machine
universal machine
PC
laptop
tubes
transistors
chips
network
World Wide Web
communication
trade
mobile phones
operations
space
happiness
These changes only became possible as my memory improved. First it was stored in ____, then on _______ and later on very small ____. In the 1960s they gave me a family connected by a _______. Now people call it the _____ _____ ____ or the Internet.
Many new applications have also been found for me. I have been widely applied in ___________, finance, ____, robots, _____ _____, medical ________ and _____ ______. I am now filled with ________ that I am a friend and helper of humans.
rockets
Post-task
Brainstorming
What do we, our school or our family use computers for
Things we do by using computers
1.
2.
3.
….
Post-task
Comparing
How did we do the same things before we had computers
Things we do by using computers now We used to…
1.
2.
3.
….
We used to … but now we … by computer.
Post-task
Review and prediction
Future computers
robot
What about next
a sports star
a maid robot
Future
robots？
Homework
Read the text aloud and try to retell it in order of time.
2.Search the Internet for more computer knowledge.