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1、Unit 3 Computers Warming up and reading,高一人教新课标版必修二,words and expression,数学的 计算器 信息技术 个人电脑 依.看,据.认为 优点 缺点 算盘 掌上电脑,Vt.,Calculate,Information Technology,Personal Computer,advantage disadvantage abacus palmtop,In ones opinion,Mathematical,Calculator (n.),IT,PC,How much do you know about a computer?,Giv
2、e the English name for the computer components (组件),keyboard,mouse,monitor,screen,speaker,host computer,1,2,3,4,5,6,monitor screen mouse keyboard hard disk DVD-ROM,(1) the part of the computer that looks like a television. (2) the part of the monitor that you look at. (3) something you use to click
3、on things (files, etc.) (4) the part of the computer that you type on. (5) the part of a computer that stores information. (6) The part of computer that we can put a CD in.,Work out the names,How much do you know about computers?,information technology,science and technology,artificial intelligence,
4、Personal Computer,personal digital assistant,World wide web,notebook computer /laptop,Do you think the computer really helps to your study? Why?,I think that In my opinion I believe that I agree because I disagree because,Giving an opinion:,Make good use of it but never get trapped by it.,Conclusion
5、 There is no doubt that computer has two sides, too. If we make good use of it, it will make our lives more colorful and convenient. But dont lose yourself in playing computers. Just remember: Keep fit, study well and work hard.,Who Am I ?,Guessing game,With the development of science and technology
6、, many new things appear in human beings life.,Lets guess what they are:,1. 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,2. I am very small. I can be used for calculating
7、. In China, a lot of students use me when solving mathematical problems. Do you know who I am?,calculator,3. With me you can watch different programmes just at home. Im a machine that has a screen with moving pictures and sounds. But watching me too much is bad for your eyes.,TV set,Who Am I,4. I am
8、 a machine which moves very fast on four wheels. You need a license(执照) and must be very careful when you drive me. Rolls Royce, Benz and BMW are some famous kinds of me.,car,5. I am a machine which is a good helper in doing house work. I wash clothes for people. Who am I?,washing machine,6. A machi
9、ne that you use to talk to other people even in a far-away place. We are connected by wire or radio. Now each of us often has a number. Who am I?,telephone,7. It is a machine, which you can use to type your homework, draw pictures, play games, watch movies, listen to music, communicate with your fri
10、ends, gather information,A PC/desktop,8. It is a kind of computer which can be taken conveniently like a notebook.,A laptop/ A notebook computer,Who am I?,Reading,1.In the passage, “I” refers to _. 2.the topic sentence of each paragraph. Paragraph I: paragraphII: paragraphIII: So the whole passage i
11、s mainly about: _.,I.Scanning(略读),a computer,Over time I have been changed quite a lot.,These changes only became possible as my memory improved.,Since the 1970s many new applications have been found for me.,Fast-reading,the development of computers.,3 Detailed reading( 细读),Read the passage more car
12、efully and find more information about computers. Then fill in the two forms below.,The computer _ _ _ _ machine,1822,Alan Turing _ _ _ _ _ how computers could be made to work,Computers had _ _ _ _ a room.,1960s,First as _ _and then _ _ _ computers were used in offices and homes.,Computers connect p
13、eople all over the world together.,A family of computers was connected by a network.,The _ machine was made by Charles Babbage.,began as a calculating,analytical,wrote a book to describe,grown as large as,a PC as a laptop,From the above form, we can know that the text is written in an order of _,tim
14、e,analytical,universal,mathematical problems,transistors,communication,trade,applications,medical operations,strong,small,wide,Some difficult sentences,Find a sentence to replace the following one (in the 1st paragraph),People thought it was a revolution in technology and after that I had the intell
15、igence that people gave me at that time. _ _ _,At that time it was considered a technological revolution and the start of my “artificial intelligence”.,2. My real father was Alan Turing, who in 1936 wrote a book to describe how computers could be made of work, and built a universal machine” to solve
16、 any mathematical problem.,Attributive Clause (定语从句),“And” 连接built和?,在1936年我真正的父亲艾伦。图灵写了一本书，讲述了怎样使我成为一台“通用机器”来解决任何数学难题。,What are advantages and disadvantages of computers? How can we make use of it?,Should high school students surf the internet(上网)?,Discussion,Computer and Internet,type your letter,
17、Play computer games,communicate with my friends.,search useful information,listen to music,watch movies,advantages we can communicate 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,Disadvantages Some people especially the t
18、eenagers abandon (沉迷于) themselves to the computer games and chatting on the Internet. As a result, they have little time to study . There is unhealthy informaion on the net. You may lose your private information. Some people use the computer wrongly.,I began as a _ machine in 1642 in France. In 1822
19、 I was built as an _ machine. Then in 1936 Alan Turing wrote a book and built a _ machine. As time_ _, I was made smaller but my memory got _ and _. In the 1960s they gave me a family connected by a _. Now people call it the Internet. I was used in _ and _ since the 1970s. Since my birth I have truly been built to serve the human race.,calculating,Analytical,universal,went by,larger,larger,network,offices,homes,Test in class,Summary,Thank,you!,