(共32张PPT)
When you guess the riddles(谜语), you can use following sentence structures.
I think that …
I believe that …
In my opinion …
.
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. Who am I
Riddles(谜语):
TV set
.
I am a machine which moves very fast on four wheels. You need a license and must be very careful when you drive me. Rolls Royce, Benz and BMW are some famous kinds of me. Who am I
Riddles(谜语):
Car
.
I am a machine, which you can use to type, play games, watch movies, listen to music, communicate with your friends, search information and so on. Who am I
Riddles(谜语):
Computer
How much do you know about a computer
Give the English name of the following pictures of the computer components (组件)。
keyboard
mouse
monitor
screen
speaker
host computer
camera
1.
2.
3.
4.
6.
5.
7.
In what ways computers are used today
Computers
1.type
7.go shopping
2.play games
5.communicate with friends
6.search information
4.listen to music
3.watch movies
……
Do you know how computers were born
Abacus
算盘
An abacus is an ancient tool used for calculating in China.
Calculator
计算器
A calculator is a new calculating machine which can solve a large number of mathematical problems.
huge computer
A huge computer is built to solve some mathematical problems. But it is too big.
PC personal computer
A PC is a personal computer which can solve all kinds of problems and is used widely now.
Laptop
A laptop is a kind of useful computer which can be taken conveniently like a notebook.
calculator
abacus
huge computer
PC
PDA
robot
laptop
The development of computer
Look at the title and the pictures in the passage. If you are the writer, what are you going to write about.
1. Who am I
3. Find out topic sentence of each paragraph.
Computer
2. What’s the main idea of the passage
It mainly talks about the development and history of computers, the relationship between computers and humans.
Find out topic sentence of each paragraph.
Paragraph 1
Paragraph 2
Paragraph 3
Over time I have been changed a lot.
These changes only became possible as my memory improved.
Since the 1970s, many new applications have been found for me.
Paragraph 1
Time Inventor/Place Invention
1642
1842
1936
1970s
The of computer
France
Calculating machine
Charles Babbage
Analytical machine
Alan Turing
Universal machine
Offices and homes
PC and laptop
history
The __________ of computer
1.First my memory was stored in_____,then on _____ and later on very small _____.
2. As a result, I totally changed my _____.
3.As I have grown _____ I have also grown _____
4.In the early 1960s, I was given a family
connected by a _____ .
Paragraph 2:
tubes
transistors
chips
shape
network
older
smaller
development
Paragraph 3:
1.become very important in communication, ______ and trade.
2.have been put into ______ and used to make ______ ______ as well as help with medical operations.
3.have been put into space ______ and sent to ______ the moon and Mars.
The __________ of computer
finance
robots
phone
rockets
explore
mobile
applications
para 1
para 2
para 3
history
development
applications
The structure of the passage
Nowadays, what does a computer mean to you
A useful machine
A wise expert
A close friend
You can use these expressions
in your presentation:
I think that …
In my opinion …
I believe that …
Computers have great power.
They make our lives more colorful and more convenient.
BUT
Don’t forget that computers are modern tools
which can’t take the place of real people.
Never ignore the people beside you or even far away.
I was born in_____in France. In 1822, I was built as an__________________,following instructions from cards with holes. In _____, my real father, Alan Turing, described how computers could be made to work in a book and solved any ___________ problems by buliding a ________machine. People were surprised at my artificial____________ . At first, I was the size of a large room. As times has gone by, I have been made smaller and smaller, but my memory became_______ and_______.In the______,I was given a family connected by a _______ .
1642
analytical machine
1936
universal
intelligence
1960s
larger
larger
mathematical
network
I could share information with others and talk to each other by a net. It was in the_________ that my family and I have become more and more important in many aspects(方面) of our life. I am happy that I have truly been built to serve _______ ________since my birth.
1970s
human
race
Read the text again and find out
In 1642
In 1822 The analytical machine was made by Charles Babbage.
1940s
The first family of computer was connected to each other.
In 1970s
Now
The computer began as a calculating machine.
In 1936
The computer grew rapidly both in size and in brainpower.
The computer had grown as large as a room.
In 1960s
Computers were used in offices and homes.
Computers connect people all over the world Together.
The summary about the text
The computer began only as a calculating machine in 1642, then in 1822, it was built as an Analytical Machine by Charles Babbage . At the year of 1936, Alan Turing wrote a book to describe how computers could be made to work, and build a “universal machine “ to solve mathematical problem. With the development of information technology, in the 1960s, computers had new transistors and became smaller and smaller, then were connected to each other by the internet. As the years had gone by, computers were brought into peoples’ homes. Now computers have become the most important tools to connect people all over the world together.