高中英语 Unit 3 Computers课件 新人教必修2.ppt

《高中英语 Unit 3 Computers课件 新人教必修2.ppt》由会员分享，可在线阅读，更多相关《高中英语 Unit 3 Computers课件 新人教必修2.ppt（23页珍藏版）》请在淘文阁 - 分享文档赚钱的网站上搜索。

1、Period 2 Reading 2021/8/11 星期三1robot1.rmvb2021/8/11 星期三2Earliest computerNowadays computerHow does it change?2021/8/11 星期三3Who am I?2021/8/11 星期三4Skimming:It is a computer.1.who is the speaker?2.Whats the passage about?Its about the history of computer.2021/8/11 星期三5 Read the passage again.Find the

2、topic sentence of each paragraph and the supporting details.Paragraph 1:Over time I have been changed quite a lot.1.calculating machine2.analytical machine3.universal machine4.laptopSkimming:2021/8/11 星期三6Q1:How did the computer work as an Analytical Machine?The computer followed instructions from c

3、ards with holes.2021/8/11 星期三7 Paragraph 2:These changes only became possible as my memory improved.1.tubes 2.transistors 3.chips work 5.World Wide Web2021/8/11 星期三8Paragraph 3:Since the 1970s many new applications have been found for munications 2.finance 3.trade 4.robots 5.mobile phones 6.medical

4、operations 7.space rockets 8.providing a life of high quality2021/8/11 星期三92.Which sentence can be replaced(代代替）替）in the passage by the following?Later,I become so clever that I can remember everything you told me.Over time my memory has developed so much that,like an elephant,I never forget anythin

5、g I have been told.2021/8/11 星期三10SummaryA topic sentence sets out the main idea of a paragraph.A topic sentence is usually the first or last sentence of a paragraph.2021/8/11 星期三11 1642 The Analytical Machine was made by Charles Babbage.19361940s The first family of computers was connected by a net

6、work.1970s nowTimeThe computer began as a calculating machine1822Alan Turing wrote a book to describe how computers could be made to work and built a“universal machine”Computers had new transistors and becameSmall and thin.1960sComputers were brought into peoples homes Computers connect people all o

7、ver the world together.What is the order of the text?2021/8/11 星期三12Q3:how 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-mi

8、nded2021/8/11 星期三13True 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,t

9、he computer was used by people around the world through the Internet.5.5.The larger the computer is,the more memory 6.it has.FTFTFa universal machineits birthI became small and thin but I got cleverer and cleverer,quicker and quicker.And my memory became so large that I couldnt believe it!correct th

10、e wrong sentences2021/8/11 星期三14Fill in the blanks:I began as a _ _ in 1642 in France.In 1822 I was built as an _ _.Then in 1936 Alan Turing wrote a book and built a _ _.As the years have_ _,I have been made _ _ _ but I got _ _ _,_ _ _.In the 1960s they gave me a family_ _ _ _.Now people call it the

11、 Internet.I was _ _ _ _ in the 1970s.So I became PC.Since my birth I have truly been built to serve the human race.calculating machineAnalytical Machineuniversal machinegone bysmaller and smallercleverer and clevererquicker and quickerconnected by a networkbrought into peoples homes2021/8/11 星期三15Fo

12、rSurfing online is harmful to the youngAgainst debate2021/8/11 星期三16ForSurfing online is harmful to the youngHave bad effect on studyA waste of moneyA waste of time2021/8/11 星期三17Against Surfing online is good to the youngLearnCommunicate Entertainment Improve 2021/8/11 星期三18 advantages we cancommun

13、icate with friends listen to the music see films&watch news play games do shopping save a lot of time do a lot of useful things DisadvantagesSome people especially the teenagers abandon(沉迷于沉迷于)themselves to the computer games and chatting on the Internet.As a result,they have little time to study.So

14、me people use the computer wrongly 2021/8/11 星期三19There is no doubt that computer has There is no doubt that computer has two sides,too.If we make good use two sides,too.If we make good use of it,it will make our lives more of it,it will make our lives more colorful and convenient.But dont colorful

15、and convenient.But dont lose yourself in playing computers.lose yourself in playing computers.Just remember:Keep fit,study well Just remember:Keep fit,study well and work hard.and work hard.2021/8/11 星期三20Alan Turingcalculating machinePC(desktop/notebook)analytical machineuniversal machineartificial

16、 intelligenceInternetcompleting the chart below.Charles BabbageThe“father”(inventor)The history of computer2021/8/11 星期三21Suppose 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.Role-play2021/8/11 星期三222021/8/11 星期三23