人教版高中英语必修二Unit-3《Computers》课件

单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,人教版高中英语必修二Unit-3Computers课件,Guess!,A toy?,A handbag?,Computers,Guess!A toy?A handbag?Compute,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?,abacus,Guess more:,I am very old now.I was bo,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?,calculator,I am very small.I can,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 computer,Do you know who I am?,I can be used for calculat,A huge computer,A PC,the history of the computer,Palmtop,(,掌上型电脑,),A huge computerA PCthe history,Who am I?,Who am I?,Skimming:,Go over the story to find out who the speaker is.Write down 3 sentences to support your idea.,It is a computer.,I was able to share my knowledge with others through the World Wide Web.,”My real father was Alan Turing.”,I was built as an Analytical Machine by Charles Babbage.”,Skimming:Go over the story t,Timeline,The computer began as a calculating machine,1822,Alan Turing wrote a book to describe how computers could be made to work,Computers had grown as large as a room.,1960s,Computers were used in offices and homes,C,omputers connect people all over the world,together.,Scanning:,TimelineThe computer began as,True or False,Alan Turing built an Analytical Machine to solve any mathematical problems.,People began to realize that the computer got cleverer and quicker with time passing.,The computer began to serve the human race since it was brought into people,s homes.,Since the 1970s,the computer was used by people around the world through the Internet.,5.The larger the computer is,the more memory,it has.,F,T,F,T,F,a universal machine,its birth,I became small and thin but I got cleverer and cleverer,quicker and quicker.And my memory became so large that I couldn,t believe it!,correct the wrong sentences,True or FalseAlan Turing built,1.,Choose the best answers,1)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.,Comprehending:,1.Choose the best answersComp,2)What can you,infer from,the text?,A.The 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.,2)What can you infer from the,Q1:How did the computer work as,an Analytical Machine?,The computer followed instructions,from cards with holes.,2.,Questions,Q1:How did the computer work,Q2:In how many ways do we say the computer changed?What are they?,Size:,Intelligence:,Speed:,Function:,People opinion:,smaller,quicker,cleverer,calculating-dealing with,communicating with,clever&useful,Q2:In how many ways do we say,1960s,Consolidation:,Retelling,1960sConsolidation:Retelling,1 A monitor is,2 The screen is,3 A keyboard is,4 A mouse is,5 A CD-ROM is,6 A hard disk is,(a)the part of a computer that stores information.,(b)the part of the computer that you type on.,(c)the part of the computer that looks like a television,(d)something you use to click on things(files,etc.).,(e)the part of the monitor that you look at.,(f)a separate disk that contains lots of information,.,Match the words with their meanings.,1 A monitor is(a)the part of,Internet,1.What can the computer be used for?,Task 2.Discussion,InternetTask 2.Discussion,school work,games,emails,music and films,chat,information,photos,shopping,Our life has changed!,school workOur life has change,palmtop,smaller desktop,convenient laptop,What are todays smaller computers like?,palmtop smaller desktop conve,2.What about in the future?,virtual keyboards,虚拟键盘,Nose-top,keyboard-vest,2.What about in the future?vir,robot,What about in the future?,robotWhat about in the future?,人教版高中英语必修二Unit-3Computers课件,Suppose you are a reporter.Now you are interviewing Mr./Miss Computer.,Sample questions:,What do you like to eat?,What are your hobbies?,What is your newest,function(,功能,)?,Can you say something,about your future plan?etc.,Task 3.Role-play,Suppose you are a reporter.No,Homework:,Review the passage,2.Do Ex.1-3 on P19-20.,3.Read the story about Bill Gates.,Homework:Review the passage,