高中英语 Unit3 Task课件 新人教版必修2 课件.ppt

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,*,Unit 3 Computers,Guess!,A toy?,A handbag?,Computers,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 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 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?,A huge computer,A PC,the history of the computer,Palmtop,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.”,1642,The Analytical Machine was made by Charles Babbage.,1936,1940s,The first family of computers was connected to,each other.,1970s,now,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:,In which order,is the text organized?,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 peoples 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,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:,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.,Q1:How did the computer work as,an Analytical Machine?,The computer followed instructions,from cards with holes.,2.,Questions,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,1642,began calculating France,1822,The Analytical Machine Charles Babbage,1936,Alan Turing wrote built,1940s,As large as,connected share talk,1970s,Become very important in,now,deal with communicate,1960s,Consolidation:,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.,Internet,1.What can the computer be used for?,Task 2.Discussion,school work,games,emails,music and films,chat,information,photos,shopping,Our life has changed!,palmtop,smaller desktop,convenient laptop,What are todays smaller computers like?,2.What about in the future?,virtual keyboards,虚拟键盘,Nose-top,keyboard-vest,robot,What about in the future?,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,Homework:,Review the passage,2.Do Ex.1-3 on P19-20.,3.Read the story about Bill Gates.,