浙江省金华市孝顺高级中学高一英语课件：UNIT3 COMPUTERS（新人教版必修2）.ppt

1、A PC(personal computer)A notebook computerI 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?abacusRiddles(谜语):I am very small.I can be used for calculating.In China,a lot of students use

2、me when solving mathematical problems.Do you know who I am?calculatorRiddles(谜语):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 Im small enough for you to take me with you.Notebook/laptopDo

3、 you know who I am?Riddles(谜语):A huge computerA PCPDA/PalmtopDiscussion what can we use computer to do?Work out a list and compare it with your partner.Internetsend emailsplay gamescommunicate with my friends.gather information for my lessonslisten to musicwatch moviesdo shopping onlineReadingWho am

4、 I?How much do you know about a computer?Pictures and words1243561.monitor 2.screen 3.CD-ROM4.mouse 5.keyboard 6.hard diskLabel each partthe main device that a computer uses to store information.the part of a computer that stores information1.modem2.scanner3.printer4.chips5.CPU53124device linking a

5、computer with a telephone line.1.Who is the teller of the story?2.What does the passage mainly talk about?Computer.It talks about the history and the applications(Use)of computers.Skimming:Listen to the tape and answer the following questions.3.In which order is the text organized?TimeTimeline1642:_

6、1822:The Analytical Machine was made by Charles Babbage._:_ _1940s:_:The first family of computers was connected to each other.1970s:_Now:_ _The computer began as a calculating machineThe computer grew rapidly both in size and in brainpower.Computers were used in offices and homesComputers connect p

7、eople all over the world together.1936The computer had grown as large as a room.1960sPara.1v Topic sentence:v Supporting details:vvvvvvOver time I have changed quite a lot.calculating machineanalytical machineuniversal machinePClaptopa huge computerPara.2v Topic sentence:v Supporting details:v tubes

8、vvvvThese changes only became possible as my memory improved.transistorschipsnetworkWorld Wide Webintelligent but lonelyPara.3v Topic sentence:v Supporting details:vcommunicationsv financevvvvvvSince the 1970s many new applications have been found for me.traderobotsmobile phonesmedical operationsspa

9、ce rockets providing a life of high qualityHow did computer change in its size,intelligence,speed,function?And how about peoples opinion?Size:Intelligence:Speed:Function:Peoples opinion:smallerquickerclevererdealing with,communicating withclever&usefulcalculatingsimple-mindedvirtual keyboards虚拟键盘Nose-topkeyboard-vest1.What can the future computer be like?2.What can we do by computer in the future?DiscussionYou are given a chance to design a computer for yourself.Draw a picture about it and describe(描述)what functions it has.You will be asked to introduce(介绍)your computer.(appearance&functions)