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1、经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用0 1 5 4 3 2Welcome to our class!Welcome to our class!经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用Welcome to our class!Welcome to our class!First,lets play a First,lets play a game!game!经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增
2、加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用 With the development of science and technology,many new things appear in human beings life.经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用 I am very old now.I was born in China.Man
3、y people used me for calculating in the past,but now I am a bit lonely because they dont like me now.Do you know who I am?abacus经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用 I am very small.I can be used for calculating.In China,a lot of students use me when solving mathematical
4、problems.Do you know who I am?calculator经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用I am very big.Scientists use me to solve some mathematical problems.Do you know who I am?huge computer经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用PC Personal ComputerIm a sma
5、ll,relatively inexpensive computer designed for an individual user.Im based on the microprocessor technology.At home,people use me to surf the Internet and play games.Do you know who I am?经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用 I can be used for calculating.Besides,I can al
6、so be used for watching DVD,sending e-mail and communicating through the Internet.However,I am not a PC,because Im small enough for you to take me with you.Do you know who I am?notebook computer/laptop经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用PDA Personal Digital AssistantI am
7、 so small in size that I can fit in your hand.I usually have a small screen usually bigger than a digital phone,however smaller than the smallest laptop,Im a great way to store telephone numbers,access the internet,make calculations,and so on.Do you know who I am?经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的
8、损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用robotIm a machine that works automatically.I can do a wide variety of tasks,especially suitable for doing jobs too boring,difficult,or dangerous for human beings.Do you know who I am?经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用PDAabacuscalculatorhuge
9、 computerPClaptopWhats next?Can you tell the order of these inventions?robot经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用robotWhat about in the future?经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费
10、用Unit 3 Computers经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用We can use the computer to listen to musicwatch moviessearch for communicate withdo shopping经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用 Reading经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商
11、品的价款或接受服务的费用 person real happy technology simple technological simplify personal reality happiness词根词根经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用start1.Who is the speaker?It is a computer.2.In which order is the text written?According to the time经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿
12、其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用 Choose the best answer Whats the main idea of the text?A.The computer wants to find“who he is”.B.The functional change of the computer.C.The computer becomes popular around the world.D.The history of the computer.经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商
13、品的价款或接受服务的费用startReading to get detailed informationP19经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用 Timeline1642:_1822:The Analytical Machine was made by Charles Babbage.1936:_ _1940s:_the first family of computers connected to each other.1970s:_Now:_The computer began as a calc
14、ulating machine.The computer grew rapidly both in size and in brainpower.Computers serve humans as a devoted friend and helper.1960s:Computers were used in offices and homes.The computer had grown as large as a prehending 经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用More detailed
15、 information about each paragraphReading经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用Paragraph1Paragraph2 Paragraph3Topic sentenceSupport-ing detailsOver time I have been changed a lot.These changes only became possible as my memory improved.Since the 1970s many new applications
16、have been found for me.calculating machineanalytical machineuniversal machinePClaptoptubestransistorschipsnetworkWorld Wide Webcommunicationsfinancetraderobotsmobile phonesoperationsspace rockets 经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用True or False1.Alan Turing built an Ana
17、lytical Machine to solve any mathematical problems.2.People began to realize that the computer got cleverer and quicker with time passing.3.The computer began to serve the human race since it was brought into peoples homes.4.Since the 1960s,the computer was used by people around the world through th
18、e Internet.5.5.The larger the computer is,the more memory 6.it has.FTFTFa universal machineits birthI became smaller,but I got cleverer and quicker.And my memory became so large that even I couldnt believe it!经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用 1.How old is the computer
19、?A.75 B.370 C.112 D.234 2.When did“I”not feel lonely?A.1940s B.1970s C.1980s D.1960s 3.What function is not mentioned in the text?A.space research B.medical operation C.militarily D.communication 经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用 4.What can you infer from the text?A.T
20、he computer has artificial intelligence.B.The computer changes a lot over the years.C.The computer was not connected by a network until in the early 1960s.D.Now the computer can only be used to deal with information.经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用ReadingSummary of t
21、he text经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用 I was born as a _ machine in 1642.When I was young,I was good at _ difficult sums.About 200 years had passed before I could think _ and produce _ answers.At that time,I was called an _ machine.In 1936,I was built as a _ machine
22、.I had the ability calculatingsimplifyinglogicallyquickeranalyticaluniversal经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用to _ any mathematical problem.From then on,I grew rapidly both in _ and memory.After I stored my memory on _ instead of in _I became _ in size but _in intellig
23、ence.As time went by,I became even smaller,for I put my memory on a very small _,which made me become PC and laptop.solvesizetubessmallercleverer chiptransistors经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用 I the 1960s,I could be connected with other computers by a _.From then on
24、,I was able to share my knowledge with others through the _ _ _.After that,I had many new_.Now,I am glad to serve human beings as a _ _ and a pleasant _.networkapplications devoted helperWorld Wide Webfriend经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用Homework:1.Find out the sent
25、ences that you dont know in the text.2.Find out more words which have the same roots in the unit.经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用Well-done!经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用What are the advantages and disadvantages of the computers?In m
26、y opinion,I can use the computerto.Discussion经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用 AdvantagesWe can use the computers to1.use a computer for school work2.play games on the computer3.send emails to friends4.see films and listen to the music 5.go shopping on municate with o
27、thers 经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用 Disadvantages1.Some students may get too addicted 2.(沉溺于沉溺于)to it.3.Some students waste too much time in playing computer games.4.Some students spend too much time in chatting with others and may be cheated by someone on line.5.
28、As a result,they have little time to study.6.It is bad for our eyes and health to spend long time in front of computers.经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用Conclusion There is no doubt that computer has two sides,too.If we make good use of it,it will make our lives more
29、colorful and convenient.But dont lose yourself in playing computers.Just remember:Keep fit,study well and work hard.经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用l()analytical machinel()laptop12345l()calculating machine()PCl()universal machine经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用tubetransistorchipnetworkThe World Wide Web