Unit 3 Computers warming up and reading

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名称 Unit 3 Computers warming up and reading
格式 rar
文件大小 2.2MB
资源类型 教案
版本资源 人教版(新课程标准)
科目 英语
更新时间 2010-12-09 15:44:00

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课件22张PPT。keyboardmousemonitorscreenspeaker host computerGive you some riddles and try to guess what they are . Step1 Lead in 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 don’t like me now.
Do you know who I am?abacusRiddles(谜语): 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?calculatorRiddles(谜语):It is built to solve some mathematical problems. But it is too big. a huge computerRiddles(谜语):Do you know who I am?It is a personal computer which can solve all kinds of problems and is used widely now. a PC (desktop) /
(personal computer)Riddles(谜语):Do you know who I am? 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 I’m small enough for you to take me with you.
notebook computer(laptop)Do you know who I am?Riddles(谜语):Period 2Reading Skimming1. Who am I?
A computer.
2. What's the general idea of this passage?
The history and development of computers as well as their applications.
3. How is the passage organized?
Chronological order.
4. Which kind of figure of speech is chiefly used in this passage?
Personification
( ) ①I began as a calculating machine
in Japan in 1642.
( ) ②In 1936, I grew rapidly both in size
and in brainpower.
( ) ③As time went by, I was made bigger.
( ) ④Since the 1970s many new
applications have been found for me.True or FalseFTFTScanningThe computer began as a____________________The computer grew rapidly both in ___and in__________.Careful readingcalculating machine.Charles Babbagesizebrainpower1960soffices and homes.Computers connect people all over the world together.had grown as large as a room.a networkWhen did the computer begin ?A.1640 B. 1642 C. 1822 D. 19362. Who really invented the computer ? A. Charles Babbage B. Bill Gates
C. Alan Turing D. Thomas Edison3. When did computer come into the common family ?A. In the 1950s B. In the 1960s
C. In the 1970s D. In the 1980sDetailed readingA. Charles Babbage built an Analytical Machine in
1642
B. A “ universal machine “ was built to solve any mathematical problems in 1936
C. The computers were connected by a network in the late 1960s.
D. In the 1960s people couldn’t talk to computers using BASIC.4. Which of the following statements is TRUE?5. What can we infer from the text ?A. A computer can take the place of the human race to do any work in the future
B. The smaller a computer is, the faster it calculates.
C. Computers can solve all the problems of the human race
D. People can benefit more from computers in the future.Fill in the blanks I, the _________, was a calculating machine
in 1642 in _______.In 1936, I became a “_________
machine” to _____any mathematical problem.
Since the 1970s I have been used first as a ___
and then as a _______in office and ______.
Many changed have happened to my ____,
so my _______totally changed.
I have been widely used in many fields, I have
also been put into robots to _______the Moon and
Mars.computerFranceuniversalsolvePClaptophomessizeshapeexploreChanges of the machineCalculating machineAnalytical machineUniversal machineMachine with artificial intelligenceMachine with new transistorA family connected by a networkA family used by the InternetretellIn 1642In 1822In 1936In the 1960sNowadayssummaryToday we have learnt the history and development of computers.
2. Meanwhile you also know how widely computers are used in our lives.HomeworkTick out sentences in the text that you think are difficult for you ,and remember the new words and expressions in Unit 3.Thanks for your cooperation!The endWish You All The Best!