英语人教版高中一年级必修2 必修2 unit 3 compters Reading 课件（共40张p

1、Learning aims: 1.通过学习本单元，使学生了解计算机的发展历史及其在当今社会的广泛应用. 2.学习和掌握一些关于电脑的表达和词汇。 3.学生可以用英语表达自己的观点并进行简单的理由阐述.,Warming up,Heavy! Difficult! Hard! Tired!,Easy! Fast! Free!,With the development of science and technology, many new things appear in human beings life.,Lets guess what they are:,1. With me you can w

2、atch 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,2. I am 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 Roy

3、ce, Benz and BMW are some famous kinds of me.,car,Who Am I,3. I am a machine which is a good helper in doing house work. I wash clothes for people.,washing machine,Who Am I,4. A machine 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 o

4、ften has a number.,telephone,Who Am I,5.It is a machine, which you can use to type your homework, draw pictures, play games, watch movies, listen to music, communicate with your friends, gather information,Computer,Who Am I,6. it is a kind of computer which can be taken conveniently like a notebook.

5、,laptop/notebook,Who Am I,drives,monitor,keyboard,Main unit,mouse,speakers,CD-ROMs,Pre-Reading,equipment terms used on computers and the internet,hardware software host output programs memory drives desk-top computer business computer digital movie,硬件,软件,主机,输出,程序,内存储器,驱动器,台式计算机,商务计算机,数字影像,be online,

6、 on the internet download files send and receive e-mail web fans Internet sites e-mail box electronic mail (e-mail) Local Area Network log in log out netizen,网吧,网虫,上网，在线,下载文件,收发邮件,网迷,网址,电子邮件,电子邮件箱,局域网,登陆,注销,网民,I am a one hundred percent net worm,because I nearly stay in the net bar more than 8 hours

7、 everyday. 我平均每天都要在网吧里呆上8个小时以上，是个不折不扣的网虫。,net bar,net worm,Who am I,Reading,PDA,abacus,calculator,huge computer,PC,laptop,Whats next?,Can you tell the development of computers?,robot,1.In the passage, “I” refers to _. 2.the topic sentence of each paragraph. Paragraph I: paragraphII: paragraphIII: So

8、 the whole passage is mainly about: _.,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.,1. Fast-reading,the development of computers.,2 Detailed reading( 细读),Read the passage more carefully and find more information about computers. Then fill in the two forms below.Ex.1 make our lives more colorful and more convenie