设计说明计算机教程PPT课件

1、Unit 3ComputersPeriod 1Period 2教师: 许月浅许月浅学校: 福建省厦门市东山中学福建省厦门市东山中学第1页/共37页第一课时 教学目的与方法说明 教学目的：1、帮助学生粗略了解计算机发展史，激发学生探索科学的兴趣；2、学习并掌握与计算机相关的人物、重要时间及部分基础词汇；3、讨论几种计算工具的优缺点，让学生明白事物的发展是必然的，但道路有时是曲折而漫长的。 教学方法：1、丰富的图片与浅显的文字启发学生思考；2、具体的表格与内容，引导学生讨论并形成结果。第2页/共37页 For example he can play games,watch DVD, listen

2、to music, download information, etc.He has fallen in love with computer.Period 1:Warming up and speakingWhy is the man so crazy?Now lets come to know more about computer!Because he can enjoy himself on the computer. He can do many things through the internet.Whats happening?第3页/共37页Introduction: Cha

3、rles Babbage(1791-1871)Do you know him? English mathematician ,Charles Babbage is among the most celebrated icons in the prehistory of computing. . Babbage is sometimes referred to as father of computing. The Charles Babbage Foundation(基金会) took his name to honor his intellectual contributions and t

4、heir relation to modern computers. .第4页/共37页Introduction: Alan Turing (1912-1954)Alan Turing , who designed the first real computer, was very interested in mathematical logic and was elected as a lecturer at Kings College, Cambridge And designed the “universal” machine to solve any mathematical prob

5、lem. Do you know him?第5页/共37页A monitor.What is it?A keyboard.A printer.A scanner.A modem.A mouse.第6页/共37页UPS: Uninterruptible Power Supplymainboard;motherboard:CD-ROM：Compact Disc-Read Only MemoryHDD:harddiskfloppy drivefloppy discWhat is it?不间断电源软驱软盘压缩光盘-只读记忆(存储)，又叫“只读光盘”。硬盘主板第7页/共37页ChipsCPU:Centr

6、al Processing UnitRAM：Random Access MemoryU-disk USB flash diskUSB: Universal Serial Bus中央处理器被喻为电脑心脏随机存储器，即人们常说的“内存”芯片“闪存”或“优盘”“通用串行总线”，也称通用串联接口。What is it?第8页/共37页Introduction: They are called Artificial intelligence which means man-made intelligence. artificial intelligence:人工智能android:机器人第9页/共37页

7、Transistors:They are a way of sending and storing information that only take up a small space. Introduction: A network: It is a number of computers that are joined together so that they can share information 第10页/共37页The Internet: A world wide information resource where people can do many things. In

8、troduction: 第11页/共37页Computer now is playing an important role in our life.But is it built in one day? No , the development of computer is long. Look, here are some kinds of “computer” for you to have a look. Speaking activity:What are they?第12页/共37页 What do they have in common? ( have in common mea

9、ns share the same points) What are the differences between an abacus and a calculator? Think about these questions: They all can be used to calculate numbers. An abacus is not so convenient as a calculator for it is not easy to master.第13页/共37页We can see a DVD on computer but not on a calculator. We

10、 can carry a notebook computer easily but not a desk computer.Think about these questions: What about a calculator and a PC, a PC and a notebook computer? 第14页/共37页Fill the chart:itemadvantages disadvantages an abacus a calculator a PC a notebook computer need no electricity, easy to make, no electr

11、icityHard to master ,slowEasy to master, fastCant display VCD, etc Fast, can play VCD, get on net, etcDifficult to carry, need electricity, etcEasy to carry, Fast, can play VCD, get on net, etc. The battery cant last long, easy to get stolen, etc. 第15页/共37页A.When you do mathematical exercises, which

12、 one will you choose? Why ? Which one will you not choose? Why not ?B.When you want to get on net, which one will you choose? Why ? Which one will you not choose? Why not ? C.When there is no electricity and you have to do some calculating, which one will you choose? Why ? Which one will you not cho

13、ose? Why not ? D.When you are on a long travel, which one will you take with you to kill time? Why ? Which one will you not choose? Why not?Choose a topic to discuss with your partner: 第16页/共37页Summary: Today we have learnt something about computer. If you want to know more information about it, you

14、 can surf the internet to get it. Think about how computer came into being. And what computer is applied to?第17页/共37页Write a short passage to tell people what are the advantages and disadvantages of computer.Homework:第18页/共37页第19页/共37页Period 2 :ReturnReading ：Who am I ？第20页/共37页第二课时 教学目的和方法说明 教学目的：1

15、、让学生了解计算机发展的几个重要阶段，进一步理解事物发展的规律与过程；2、培养和提高学生的阅读能力，帮助学生分析和归纳课文的主要信息；3、学习并掌握一些重要词汇与句型，并最终以写的形式巩固下来。 教学方法：1、以一道数学题启发学生积极思考；2、快速阅读与仔细阅读相结合；3、自主学习与合作学习相结合。第21页/共37页1642 + 1822 + 1936 + 1960 + 1970 = ？Can you work out the answer in one second? My answer is :The development of computer+ + + + = 19701960193

16、618221642第22页/共37页+ + + + = 197019601936182216421642 + 1822 + 1936 + 1960 + 1970 = ？Can you work out the answer in one second? My answer is :The development of computer Click the years for more information 第23页/共37页Return 500 b.c. 1642 1822 1936 1960 1970 Today1642:Pascal built a mechanical calculat

17、ing machinemechanical gears, hand-crank, dials and knobs other similar machines followed.第24页/共37页1822: The Analytical Machine was made by Charles Babbage. 500 b.c. 1642 1822 1936 1960 1970 TodayReturn第25页/共37页1936: Alan Turing wrote a book to describe how computers could be made to work. 500 b.c. 1

18、642 1822 1936 1960 1970 TodayReturn第26页/共37页1960: Computers had new transistors and became smaller. 500 b.c. 1642 1822 1936 1960 1970 TodayReturn第27页/共37页 500 b.c. 1642 1822 1936 1960 1970 Today1970s: Computers were brought into peoples homes.Now : Computers connect people all over the world togethe

19、r.Return第28页/共37页uAbacusu1642:The computer began as a calculating machine.u1822:The Analytical Machine was made by Charles Babbage.u1936:Alan Turing wrote a book to describe how computers could be made to work.u1960: Computers had new transistors and became smaller.u1970s: Computers were brought int

20、o peoples homes.500 b.c16421822193619601970Today The timeline第29页/共37页Fast reading:Scan the text on Page 18, and judge the following sentences whether they are True or False: 1. Computer was made as a calculating machine in 1642 in France. ( )2. In 1822 computer was built to follow instructions from

21、 cards with holes, which was a technological revolution. ( )3. Alan Turing wrote a book to describe how computers could be made to work in 1936. ( )4. In the 1960s after I got my new transistors my size was not changed. ( )5. In the 1970s I was brought into peoples homes. ( ) TTTFT第30页/共37页Careful r

22、eading : Read the text carefully and try to find out the answers to the questions: 1.What made people think I was not simple-minded?-2. Who built a “universal machine ” to solve any mathematical problem?-3. How people deal with information and communicate with each other around the world since 1970s

23、?-I had “artificial intelligence” which made people think I was not simple-minded.Alan Turing.By the Internet.第31页/共37页4. Who am I ? Find out the supporting sentences. Key: “I” am a computer because in the text :A. Then in 1822 I was built as an Analytical Machine by Charles Babbage.B. My real fathe

24、r was Alan Turing.C. However, people thought I was simple-minded until they discovered I had “artificial intelligence”.Careful reading : 第32页/共37页Useful words and expressions: begin as a calculating machinebe built asfollow instructions fromsound simplea technological revolutionmakeworksolve problemsarti