人教版高中英语 必修二 Unit3 《Computers---Reading》 课件(共25张PPT).ppt

1、Unit 3 ComputersThese amazing inventions we saw in the video come from the following common things: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 dont like me now.Do you know who I am?abacusHave a guessI am very small.I ca

2、n be used for calculating.A lot of students use me when solving mathematical problems.Do you know who I am?calculatorI am a machine that you can use to talk to other people even in a far away place.You can carry me around you.Now each of us often has a number.Do you know who I am?Mobile/cell phone I

3、 am an electronic machine that can store,organize and find information,do calculations and control other machines.My nickname is“PC”.Do you know who I am?computerUnit 3 ComputersREADINGStudy the title:“Who am I?”A computer.Whats the figure of speech(修辞)of this passage?Personification（拟人）The sun kiss

4、es your skin with glowing warmth,and the soft sea breeze plays with your hair.I was very happy and could hear the birds singing in the woods.Personification（拟人）More active and interestingEasier to understandSkimmingto get general ideasReadingWhats the main idea of the passage?Its a short history of

5、the _ of computers.developmentIn what order is this passage arranged(安排）?Time.Topic sentenceParagraph 1Paragraph 2Paragraph 3Over time I have been changed quite a lot.These changes only became possible as my memory improved.Since the 1970s many new applications have been found for me.Scanning to get

6、 specific informationReading 1642The computer began as_ 182219361940sComputers had grown_1960s 1970snowAlan Turing wrote a book about how computers could be made to work as_Computers have become very important in _Computers are devoted friends and helpers of the_The Analytical Machine was made by Ch

7、arles Babbage.The first family of computers was connected by_a calculating machine.a universal machine.as large as a room.a munication,finance and tradehuman race.calculating machineanalytical machineuniversal machinePC(desktop)laptopPara 1:Over time I have been changed quite a lot.Careful ReadingPa

8、ra 2:These changes only became possible as my memory improved.tubestransistors chipsnetworkWorld Wide WebPara 3:Since the 1970s many new applications have been found for municationfinancetraderobotsmobile phonesmedical operationsspace rocketsSummary of the textAfter Reading Its known to us all that

9、the computers is one of the most important inventions in the 20th century.Though its widely used in our daily life,it began only as a _ machine in 1642.In 1822,the _machine was made by Charles Babbage.At that time,after the computer was _ by an operator who used cards with holes,it could“think”logic

10、ally and produce an answer _ than any person.With the time going by,the computer has been made_.Later,computers were _ with each other.The information could be _.Since the 1970s many new _have been found for the computer.It has become very important in _,finance and trade.The computer is a devoted f

11、riend and helper of the_ race.calculatinganalyticalprogrammedquickersmallerconnectedsharedapplicationscommunicationhumanList the advantages and disadvantages of the mobile phoneDiscussion Amunicate with friends2.listen to the music3.see films&watch news4.play games5.do shopping6.save a lot of time D

12、isadvantages1.get too addicted(沉溺于)to it.2.waste too much time in playing games.3.may be cheated(欺骗)by someone on line.4.have little time to study 5.bad for our eyes and health6.have trouble in communicating with othersParents view on mobile phoneSmart phonesShould we use smart phones in school?Debate show Rules:One student one point Stand up to express your idea Loudly ClearlyHomework1.Read the passage fluently after class;2.Finish reading.