Unit 3. Computer

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Unit 3. Computer Period 1. Warming UP
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Unit 3 computers
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Discussion

• What do you usually use your computer for?

Discussion Is
it very important to learn computer skills for
us? Why or why not?
surf the Internet look for information chat
online listen to music watch movies play
computer games, etc.
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keyboard
scanner
floppy disc
CD-ROM
mouse
a notebook computer
chips
modem
CPU
printer
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Do you know the history of computer?
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An abacus is an old Chinese calculating
machine which can solve a large number of
mathematical problems.
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A calculator is a new calculating machine
which can used to solve a large number of
mathematical problems
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A huge computer
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A huge computer is built to solve some
mathematical problems.
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A PC
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A notebook computer
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I am connected.
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Who Am I?
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Fast reading

• Read the article and find out

What is the main idea of the text?
This text mainly talks about the history and
development of computers over in the past 100
years. It is also about the relationship of
computers and humans.
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Timeline Timeline
1642
The Analytical Machine was make by Charles Babbage.
1936
1960s
The first family of computers was connected to each other.
1970
Now
The computer became as an calculating machine.
1822
Alan Turing wrote a book to describe how computer
could be made to work, and built a universal
machine
Computers had new transistors and became smaller.
1960s
Computers were brought into peoples homes.
Computers connect people all over the world
together.
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Put them in the right order
First reading Task 3
1. Calculating machine
Machine with new transistor
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2
Analytical Machine
Universal machine
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A family used by the Internet
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Machine with artificial intelligence
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A family connected by a network
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Detailed reading
Read the article again and fill in the table.
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Changes Of Abilities







Only calculating
Following instructions from cards with holes
any mathematical problem
Solving
Having artificial intelligence
Clever and quicker
Talking to
humans
Connecting people

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Fill in the blanks 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 the
years have___ ___, I have been made ___ ___ ____
but I got ____ ____ ___, ____ __ ____. In the
1960s they gave me a family____ __ __ _____. Now
people call it the Internet. I was _____ ____
____ ___ in the 1970s.So I became PC. Since my
birth I have truly been built to serve the human
race.
calculating machine
Analytical Machine
universal machine
gone by
smaller and smaller
cleverer and cleverer
quicker and quicker
connected by a network
brought into peoples homes
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• Group discussion

• What is the advantages (??) and disadvantages
  (??) of computers.
• Make a list and then report to the class

• Please use the following expressions in your
  discussion

• I think that.
• In my opinion.
• I believe that.
• Whats your reason?
• Why do you think so?

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Big big talk
Disadvantages
Advantages

• There is a lot of junk(??) information on the
  Internet
• Virus(??) may destroy the computer system
• Some teenagers spend too much time playing
  computer games and chatting with friends, and
  ignore their work and study.

• Get lots of up-to-date information very quickly
• Download many things from the Internet
• Can chat with friends whenever you want
• Do a lot of things without even leaving our home.

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• Homework
• Find out the language points and the sentences
  that you dont know in the text.
• Do exercise 1 2 on page 19.

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See you
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In 1642, I was born. I began only a calculating
machine in France.
I was built as an Analytical Machine by Charles
Babbage.
1822
1936
Alan Turing, my real father, wrote to describe
how I could be made to work, and built me into a
universal machine to solve mathematical
problems.
I got my new transistor. I became small and
clever. I had a family. We were connected by a
network.
1960s
I was brought into peoples homes
1970s
I can deal with information for people around the
world and help them to communicate with each
other.
Now