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1、The technology develops so quickly that many new things appear in human beings life.Lets guess what they are: I am very old now. I was born in China. Many people used me for calculating(计算计算) in the past, but now I am a bit lonely because they dont like me now. Do you know who I am?abacusGuess : I a
2、m very small. I can be used for calculating. In China, a lot of students use me when solving mathematical(数学的) problems. Do you know who I am?calculatorSolve a riddle : one thingIt has a big face with many keysIt has two big ears which can play musicYou can watch TV or see a movie using itIt can be
3、seen in the office, classroom and at home.It can download informationguessDo you know who I am ? A huge computer A huge computer “银河”巨型计算机A PC= personal computer A PC= personal computer A notebook computer A notebook computer We can see many brands of computersLenovo 联想联想Haier 海尔海尔神州神州Tinghuatongfan
4、g清华同方清华同方惠普惠普DellTCLAcer宏基宏基thinking1. What do they have in common? （Using some of the following expressions in your discussion.） I think that In my opinionI believe that What s your reason?Why do you think so? 1.They can be used for calculating. 2.They can deal with maths problems.3.They are our fr
5、iends.4.They are useful and helpful. Reading Unit 3 Computer Scan the text and then answer the following questions: 1.Who is the speaker? 2.What the text might be about?Scanning 1.Who is the speaker ?It is a computer.It is a computer.This reading passage is mainly about the and the of the computer.h
6、istorydevelopment 1.Where were you in 1642?3 What were you called in 1936?4 What did you get in the 1960s?What happened to you in the 1970s? 2 What happened to you in 1822?Timeline 1642: _: The Analytical Machine was Made by Charles Babbage.1936:_1960s:_ The computer began as a calculating machine i
7、n France.1822Alan Turing wrote a book to describe how computers could be made to work.Computers have new transistors and became smaller._: The first family of computerswas connected to each other.1970s: _Now:_1960sComputers were brought into peoples homes.Computers connect people all over the world
8、together. True or false 1. Charles Babbage was the computers real father. 2. The speaker was built as an Analytical Machine in 1822. 3. The speaker was called a calculating machine in 1936. 4. The speaker was given a family connected by a network in the late 1960s. F Alan Turing. T a universal machi
9、ne in the early 1960s F F Q1: How did the computer work as an Analytical Machine? The computer followed instructions from cards with holes.Q2: In which way did computers talk to humans? Using BASIC.Q3: What does “others” (2.6) refer to? Other computers.3. Questions Q4: Why did people think the compu
10、ter was simple-minded? Because the computer was made as a calculating machine and was used to solve mathematical problems.Q5: In how many ways do we say the computer changed? What are they? Size: Intelligence: Speed: Function: People opinion:smallerquickercleverercalculating-dealing with , communica
11、ting withsimple-minded-clever & usefula personal computera calculating machinean analytical machinea notebook computera huge computer12345Changes in size 1._ (earlier) 2._ ( in the past) 3._ (modern)not very bighugesmaller and thinnerChanges of the machineCalculating machineAnalytical machineUnivers
12、al machineartificial intelligencePC (desktop/ notebook)Internet ?TimeDevelopment in functionscalculatecalculating machine -Analytical Machine -follow instructionsuniversal machine- solve mathematical problems; artificial intelligenceComputer connected by a networkshare information with others; talk
13、to each other; deal with information; communicate with each otherDiscussion: what other functions will computers have in the future? Or what will computers be like?Use the following expressions:I think that In my opinion I believe thatIt would be nice ifricher and richer; stronger and stronger; easi
14、er and easierThen what should we do if we want to develop more functions of the computer?Study hard. Learn as much knowledge as we can.Prepare to become great scientists! Summary The history of computersName : computer Born : (time)_ (place)_ My father: _My size: 1._(earlier) 2._( in the past) 3._(m
15、odern)My history: 1. 1642 _machine 2. 1822_machine 3. 1936 _machine 4. 1960s computers with _ 5. 1970s _ and _ computers.My usage: 1. _ 2._ 3._ 1642France Alan Turingnot very bighugesmaller and thinnerAnalytical calculatinguniversaltransistorsPCnotebookshare municate with others.serve the human race
16、. Now people can use computers to deal with information and communicate with each other around the world by _ . But the development of computers has a long history. In 1642, the first computer only worked as a _ . In 1822, an Analytical Machine was invented. In 1936 ,a machine was built. In _ ,after
17、 getting new computers became _ in size, got cleverer and cleverer in intelligence, and became_ in speed. Then they could be connected with other computers by a network, and _ could talk to them using BASIC. In the 1970s ,people began to bring them into their homes. Summary the Internetthe Internetc
18、alculating machinecalculating machinethe 1960sthe 1960ssmaller and smallersmaller and smallerquicker and quickerquicker and quickerhumanshumansuniversaltransistors,People say computers have more advantages than disadvantages. Do you think so?advantagesdisadvantagesABSuch as :Send an e-mailIt is bad
19、for your eyesDownload(下载下载) informationSee a movie or watch TVPlay computer gamesBuy goods you want Do some chattingadvantages- - - - - - - improve peoples ability of thinking Too expensiveAddicted to playing computer games - - - - - - - disadvantagesPeople can not write right Chinese lettersVirtual things (虚拟的虚拟的) 1.Should students surf the Internet?2.Should students go to the net bar? net barat homeHomework同学们来学校和回家的路上要注意安全同学们来学校和回家的路上要注意安全
