高中英语 Unit3 Task课件 新人教必修2.ppt

2021/8/11 星期三1Guess!A toy?A handbag?Computers2021/8/11 星期三2 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?Do you know who I am?abacusGuess more:2021/8/11 星期三3 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?Do you know who I am?calculator2021/8/11 星期三4 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 computerDo you know who I am?Do you know who I am?2021/8/11 星期三5A huge computerA PCthe history of the computerPalmtop 2021/8/11 星期三6Who am I?2021/8/11 星期三7Skimming: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.”2021/8/11 星期三8 1642 The Analytical Machine was made by Charles Babbage.19361940s The first family of computers was connected to each other.1970s nowTimelineThe computer began as a calculating machine1822Alan Turing wrote a book to describe how computers could be made to workComputers had grown as large as a room.1960sComputers were used in offices and homes Computers connect people all over the world together.Scanning:In which order is the text organized?2021/8/11 星期三9True or False1.Alan Turing built an Analytical 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 1970s,the computer was used by people around the world through the Internet.5.5.The larger the computer is,the more memory 6.it has.FTFTF2021/8/11 星期三101.Choose the best answers1)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:2021/8/11 星期三112)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.2021/8/11 星期三12Q1:How did the computer work as an Analytical Machine?The computer followed instructions from cards with holes.2.Questions2021/8/11 星期三13Q2:In how many ways do we say the computer changed?What are they?Size:Intelligence:Speed:Function:People opinion:smallerquickercleverercalculating-dealing with,communicating withclever&useful2021/8/11 星期三14 1642began calculating France1822The Analytical Machine Charles Babbage 1936Alan Turing wrote built 1940sAs large asconnected share talk 1970sBecome very important in nowdeal with communicate 1960sConsolidation:Retelling2021/8/11 星期三151 A monitor is2 The screen is3 A keyboard is4 A mouse is5 A CD-ROM is6 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.Match the words with their meanings.2021/8/11 星期三16Internet1.What can the computer be used for?Task 2.Discussion2021/8/11 星期三17school workgamesemailsmusic and filmschatinformationphotosshoppingOur life has changed!Our life has changed!2021/8/11 星期三18palmtop smaller desktop convenient laptop What are todays smaller computers like?2021/8/11 星期三192.What about in the future?virtual keyboards 虚拟键盘虚拟键盘Nose-topkeyboard-vest2021/8/11 星期三20robotWhat about in the future?2021/8/11 星期三212021/8/11 星期三22Suppose 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(功能功能)?Can you say something about your future plan?etc.Task 3.Role-play2021/8/11 星期三23Homework:1.Review the passage 2.Do Ex.1-3 on P19-20.3.Read the story about Bill Gates.2021/8/11 星期三242021/8/11 星期三25