Unit 3 Computers(广东省广州市)

课件27张PPT。Unit 3 ComputersGuessing GameI’m round, just like a full moon.
Who am I ?
People cut me into pieces and eat me.
Who am I ?
I’m used at the Mid- Autumn Festival.
Who am I ?
…
I’m a mooncake.the group mates who guess the object must use the following expressions:I think that……
I believe that……
In my opinion……
You must(肯定) be …The technology develops so quick that many new things appear in human being’s life.warming upLet’s guess what they are:notebook computer InternetHI-TECHhi fimp3 playerHI-TECHcell phonesatelliteaircraft carrierTVairlinerautomobiledigital camerarobotInterviewInterview 3 Ss and reportThe development of the calculating machine:An abacus is an ancient tool used for counting,
The abacus has been in existence in China
since the second century BC until now,
although the oldest counting boards
have been found in fourth century BC Rome. The first electronic counting machine
in continental Europe. Designed under
the leadership of Academician S.A. Lebedev
(Kyiv, Ukrainian National Academy of
Sciences, 1948-1951).It was built to solve some mathematical
Problems.
The first tasks were solved on January, 4, 1951.But it is too big.A calculator is a new calculating machine which can solve a large number of mathematical problems.A PC is a personal computer which can solve all kinds of problems and is used widely now.A notebook computer is a kind of useful computer which can be taken conveniently like a notebook.Reading1.Who is the speaker?
2.What is the text about?1.Who is the speaker ? How do you know? It is a computer.2.What is the text about?The history / development/
applications of computers.Evidence 1.Then in 1822 I was built ….
(itself was the first design of a computer)2.My real father was Alan Turing.
(He designed the first real computer.)3.However, people thought I was simple-minded until….,
(It has artificial intelligence.)Fill in the blanks with information from the reading :According to the timeTimeline1642:_____________________________________
_____:The Analytical Machine was made by Charles Babbage.
1936:_______________________________
___________________________
1960s:_________________________________
_____: The first family of computers was connected to each other.
1970s:_________________________________
Now:_____________________________________The computer began as a calculating machine1822Alan Turing wrote a book to describe how
computers could be made.Computers had new transistors and became smaller.1960sComputers were brought into people’s homeComputers connect people all over the world together.Explain how the computer technology has been developing and complete the following chart. Then give a brief oral presentation on the development of computer technology with the help of the chart.calculating machineanalytical machineuniversal machineartificial intelligencePC (desktop/ notebook)Internet?How have computers and Internet changed our lives?Computer and Internet type my homeworkdraw picturesplay gamescommunicate with my friends.gather information for my lessonslisten to musicwatch movies……Something to think about:Topic
The Internet
Advantages:
Disadvantages:debateDiscussionWhat do you think is
the tone of the writing?It is written in the first person.characteristicsVivid/naturalIt doesn’t waste
words.It just gives us facts.It is written as if the writer himself
was a computer with no feelings.…….