Unit 3 Computers

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Unit 3 Computers
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Guess!
Computers
A handbag?
A toy?
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Guess more

• I am very old now. I was born in China. Many
  people used me for calculating in the past, but
  now I am a bit lonely because they dont like me
  now.
• Do you know who I am?

abacus
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• I am very small. I can be used for
  calculating. In China, a lot of students use me
  when solving mathematical problems.
• Do you know who I am?

calculator
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I can be used for calculating. Besides, I can
also be used for watching DVD, sending e-mail and
communicating through the Internet. However, I am
not a PC, because Im small enough for you to
take me with you.
Do you know who I am?
notebook computer
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the history of the computer
Palmtop
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Who am I ?
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Skimming Go over the story to find out who the
speaker is. Write down 3 sentences to support
your idea.
? I was built as an Analytical Machine by
Charles Babbage.
?My real father was Alan Turing ....
? I was able to share my knowledge with others
through the World Wide Web.
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Scanning
Timeline
The computer began as a calculating machine.
1822
In which order is the text organized?
Alan Turing wrote a book to describe how
computers could be made to work.
Computers had grown as large as a room.
1960s
Computers were used in offices and homes.
Computers connect people all over the world
together.
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True or False

• Alan Turing built an Analytical Machine to solve
  any mathematical problems.
• People began to realize that the computer got
  cleverer and quicker with time passing.
• The computer began to serve the human race since
  it was brought into peoples homes.
• Since the 1970s, the computer was used by people
  around the world through the Internet.
• 5. The larger the computer is, the more memory
  
• it has.

F
T
F
T
F
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Comprehending
1. Choose the best answers 1) Whats the main
idea of the text? A. The computer wants to
find who he is. B. The functional change of
the computer. C. The computer becomes popular
around the world. D. The history of
the computer.
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2) What can you infer from the text? A. The
computer has artificial intelligence. B. The
computer changes a lot over the
years. C. The computer was not connected by a
network until in the early 1960s.
D. Now the computer can only be used to
deal with information.
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2. Questions
Q1 How did the computer work as an
Analytical Machine? The computer followed
instructions from cards with holes.
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• Q2 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
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Consolidation Retelling
1960s
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Match the words with their meanings.
(a) the part of a computer that stores
information. (b) the part of the computer that
you type on. (c) the part of the computer that
looks like a television (d) something you use to
click on things (files, etc.). (e) the part of
the monitor that you look at. (f) a separate disk
that contains lots of information.
1 A monitor is 2 The screen is 3 A keyboard
is 4 A mouse is 5 A CD-ROM is 6 A hard disk is

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Task 2. Discussion
1.What can the computer be used for?
Internet
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school work games emails music and
films chat information photos shopping
Our life has changed!
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convenient laptop
smaller desktop
What are today's smaller computers like?
palmtop
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2.What about in the future?
Nose-top keyboard-vest
virtual keyboards ????
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What about in the future?
robot
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Task 3. Role-play

• Suppose you are a reporter. Now you are
  interviewing Mr. / Miss Computer.
• Sample questions

• What do you like to eat?
• What are your hobbies?
• What is your newest
• function(??)?
• Can you say something
• about your future plan? etc.

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Homework

• Review the passage
• 2. Do Ex. 1-3 on P19-20.
• 3. Read the story about Bill Gates.

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