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Unit 3
Unit 3 Computers
Heavy!Difficult! Hard!Tired!Warming up
Easy!Fast!Free!
monitorkeyboardmousespeaker
modemscannerprinterUSB flash dischard disc
Label each part.124356monitorscreenCD-ROMmousekeyboardhard disk
1. Look at these pictures. In pairs discuss what they have in common. 2. What do they tell you about the development of computers?3. What do you think will be the next development?
What’s next?
1. Look at the title of the reading passage. Predict what it is going to be about.2. Do you know in what ways computers are used today? Work out a list and compare it with your partner.Pre-reading
SkimmingRead the text quickly.1. Who am I? A. An operator. B. Alan Turing. C. A computer. D. Human race.C
2. What’s the passage about?The text mainly tells us a short history of the development of the __________ and its ____________ in different fields.? computerapplications
ScanningRead the passage and finish the timeline.he analytical machine was made by Charles Babbage.The computer began as a calculating machine.
1940sThe first family of computers was connected to each other.The computer grew rapidly both in size and in brainpower.Computers had grown as large as a room.1960s1936
1970s nowComputers were used in offices and homes.Computers connect people all over the world together.
Read the passage again and complete the chart below. Careful reading
DevelopmentEarly daysNameFunction PoorStrongA _________ machineSimplify difficult sumsAn ________ machineThink logically and produce an answer quicklyA _________ machineSolve difficult ______________________calculatinganalytical universal mathematical problems
DevelopmentNetwork times________ stored inTubesLargeSmall____________Small chips_______________________Narrow WideFinance________RobotsMobile phones_______________Space rocketsMedical operations MemoryTransistorsApplicationsCommunicationTrade
Topic sentenceSupporting detailsParagraph 1Over time I have been changed quite a lot.Cal
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