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 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,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 Royce, 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 often 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.,laptop/notebook,Who Am I,drives,monitor,keyboard,Main unit,mouse,speakers,Do you know them?,CD-ROMs,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, 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 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,What do you use computers for?,search for ,see movies,listen to music,read books and magazines,send emails to friends,download music and films,buy things on line,play games on the computer,draw pictures,look at photographs on the computer,use a computer for school work,take part in chat groups,operate railways (like the underground),“electronic brains”,fly planes and spaceships,PDA,abacus,calculator,huge computer,PC,laptop,Whats next?,Can you tell the development of computers?,robot,Pre-reading,Who am I,Reading,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.,1.In the passage, “I” refers to _. 2.the topic sentence of each paragraph. Paragraph I: paragraphII: paragraphIII: So the whole passage is 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.,A PC,( ) analytical machine,( ) calculating machine,( ) laptop,( ) universal machine,( ) robot,1,2,3,4,5,6,Q2:the history of the computer, put in order,1. Who was the first person to make the earliest computer? A. Alan Turing. B. Charles Babbage. C. Charles Turing. D. Alan Babbage. 2. When was the “universal machine” built? A. In 1822. B. In 1642. C. In 1936. D. In 1970.,Reading Comprehension,3. When was the computer the biggest? A. In 1642. B. In 1936. C. In the 1940s. D. In the 1970s. 4. How old is the computer? A. About 170 years old. B. About 270 years old. C. About 370 years old D. About 470 years old.,5. Which of the following is in the right order of time? The computer was connected with other computers. b. Alan Turing wrote a book about the computer. c. The computer has been sent to explore the Moon and Mars. d. The computer began to simplify difficult sums. A. a. b. c. d. B. b. c. a. d. C. d. a. c. b. D. d. b. a. c.,1. My real father was Charles Babbage, who wrote a book and built me in 1936. 2. After I got my new transistors in the 1960s, I became smaller but cleverer and quicker. 3. I was brought into peoples homes in the 1970s. 4. Since my birth I have been built to take the place of the human race.,True or False,Scanning,Reading Comprehension,5. I began as a calculating machine in Japan in 1642. 6. In 1936, I grew rapidly both in size and in brainpower. 7. As time went by, I was made bigger. 8. Since the 1970s many new applications have been found for me.,Scanning,2 Detailed reading( 细读),Read the passage more carefully 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 people all over the world together.,A family of computers was connected by a_.,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,network,Find a