模块2 Unit 3 Computers reading

课件21张PPT。Unit 3 Computers
Who Am I?Guessing game With the development of science and technology, many new things appear in human being’s life.Let’s guess what they are: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 Who Am I 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. car3. I am a machine which is a good helper in doing house work.
I wash clothes for people.
Who am I?washing machine4. 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?telephone5.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… Computerit is a kind of computer which can be taken conveniently like a notebook.A notebook computerLaptopabacuscalculatorhuge computerPClaptopPDArobotDo you know the development of the computer?What English words do you
know about computers?keyboardmousemonitorscreenspeaker host computerWho Am I ?Computer What’s the main idea of this passage?
A. The development of computers
B. The development and use of computers
C. A machine which is simple-minded
D. Computers may replace human beingFast-readingB. The development and use of computersTimeline(the development of the computer)The computer began as a calculating machineThe computer grew rapidly both in size and in brainpower.The computer had grown as large as a room.1960sComputers were used in offices and homes.Computers connect people all over the world together.1642:_____________________________________
1822:The Analytical Machine was made by Charles Babbage.
1936:_______________________________
___________________________
1940s:_________________________________
_____: The first family of computers was connected to
each other.
1970s:_________________________________
Now:_____________________________________Over time I have been changed quite a lotThese changes only become possible as my memory improvedSince the 1970s many new applications have been found for mecalculating machine
analytical machine
universal machine
pc
laptoptubes
transistors
chips
network
world wide webcommunications
finance
trade
robots
mobile phones
medical operations
space rocketsTrue or False?
In 1642 I began as a calculating machine and could solve any mathematical problem.
My real father was Charles Babbage, who wrote a book and build me in 1936.
After I got my new transistors in the 1960s, I became smaller but cleverer and quicker.
I was brought into people’s homes in the 1970s.
Since my birth I have been built to
take the place of human race.FFTTFcalculatingAlan TuringserveRetell the text by filling in the blanks:
I began as a _______ machine in 1642 in France. In 1822 I was built as an _______ machine. Then in 1936 Alan Turing wrote a book and built a ______ machine. As the years have___ ___, I have been made ______ . There were times when my size ______ changed. And my memory became _____ large _____ I couldn’t believe it. In the 1960s they gave me a family_________ by a network. I was able to _________________with others through the World Wide Web. Since the 1970s many new applications ______________ for me.calculatingAnalyticaluniversalgone bysmaller totallythatconnectedhave been foundshare my knowledgeso What can computers
be used to do?Computers have great power. They make our lives more colorful and more convenient.
BUT
Don’t just use computers for fun.
Don’t spend too much time in playing computer games or chatting(聊天) online. We should learn more computer skills which are very useful in our future work.
Bye-bye !