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高中英语:Unit3 《Computers》课件 新人教版必修2


New SEFC B2 Unit 3 Computers (Reading)
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What do you know about computers? monitor
CD-ROM / DVD-ROM

loudspeaker box
FDD(Floppy Disk Driver

mouse

keyboard

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CPU

hard disc

USB Flash Disk
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floppy disc

scanner

printer
modem
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Pre-reading questions 1.What have computers changed our life? 2.What changes will they bring to us in the future?
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Task 1: Go over the story and discuss with your partner who the speaker is in this story. Write down three sentences to It is a computer. support your idea.
1. Then in 1822 I was built as an Analytical machine by Charles Babbage.

Comprehending

2. My real father was Alan Turing, who in 1936 wrote…solve any mathematical problem. 3.However, people thought I was simple-minded until they discovered I had “artificial intelligence”. ks5u精品课件

Task 2: From the reading passage, find the words and expre with the following meanings. totally 1__________ completely revolution complete change 2._________ 3._________ to make something happen so…that birth 4._________ when a baby or animal is born 5._________ simple-minded unable to understand difficult things go by 6._________ pass deal with take correct action 7._________ 8. _________ broadcast on several different channels network 9 ._________ indeed truely 10.__________ used to show that something anyway happens in spite of a problem
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Task 3 Look at the timeline below. Fill in the blanks with Information form the reading above. The computer began as a calculating machine. 1642: _______________________________________

1822 The Analytical Machine was made by Charles Babbage. ____:
Alan Turing wrote a book to describe how 1936: _____________________________________________

computers could be made.
1960s: ______________________________________________ Computers had new transistors and became smaller.

1960s The first family of computers was connected to each _____:
other. Computers were brought into people’s homes. 1970s: ______________________________________________

Now:

Computers connect people all over the world _____________________________________________ ks5u精品课件 together.

The history of computers
the second generation (1956-1963)

The first generation (1945-1956)

the fourth generation (1971- )

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the third generation (1964-1971)

Homework
? 1. Read the text after class and look for more information about the development of computers and its applications. ? 2. Retell the story. ? 3. Write down the story.

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