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人教版高一英语必修二unit3 computers (reading)精品课件

1960s:The first family of computers was connected by a network. 1970s: Computers were used in offices and homes.
Many new applications have been found for computers.
Who am I?
computer
Reading
WHO AM I?
While-reading(1):
1. Who is the speaker in this story? A computer.
2. What’s the main idea of this passage? A. The development of computers. B. The development and use of computers. C. A machine which is simple-minded. D. Computers may replace human beings.
While-reading(3):
4. (translation) Over time my memory has developed so much that, like an elephant, I never forget anything I have been told. 随着时间的推移,我的记忆力发展的如此之 快,就像一头大象,我从来不会忘记告诉我 的任何事情。
1822: The Analytical Machine was built by Charles Babbage. 1936: The computer grew rapidly both in size and
in brainpower. (Universal machine)
1940s: Computer had grown as large as a room.
3. The text is written in the order of . A. time B. space C. logic D. all the a): timeline
1642: The computer began as a calculating machine.
While-reading(3):
2.I totally changed my shape, because my memory was first stored in tubes, then on transistors and later on very small chips.
I totally changed my shape!
never forget anything I have been told.
While-reading(3): 1. Why could you “think” logically and produce an answer quicker than any person?
Because I was programmed by an operator who used cards with holes.
1.I’m also a machine. But I’m small, so you can put me in your pocket.
2.There are ten numbers on me. 3.And you can use me to talk to
others even in a far-away place.
Unit 3
reading
Teaching aims
1. Enable students to understand the whole passage.
2. Improve students’ ability of gathering information.
3. let students know some basic information about computers
2. I totally changed my shape, because
.
3. Many new applications have been found for
me, such as
.
4. (translation) Over time my memory has
developed so much that, like an elephant, I
Now: Computers connect people all over the world
together.
While-reading(3):
1. Why could you “think” logically and produce an answer quicker than any person?
Pre-reading:
1.I’m a machine that has a screen with moving pictures and sounds.
2.With me you can watch different program just at home.
Who am I?
TV set
Who am I?
Mobile phone
1.There is no doubt that I’m also a machine.
2.There are some numbers and letters on me.
3.People often use me to play games, and teachers often use me to give lessons.
Careful-reading:
3. Many new applications have been found for me, such as communication/ finance/ trade/ robots/ mobile phones/ medical operations/ space rockets
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