人教版高一英語必修二unit3-computers-(reading)精品課件完整版

1、Enable students to understand the whole passage.Improve students ability of gathering information.let students know some basic information about computers Teaching aimsPre-reading: Im a machine that has a screen with moving pictures and sounds. With me you can watch different program just at home. W

2、ho am I?TV set Im also a machine. But Im small, so you can put me in your pocket. There are ten numbers on me. And you can use me to talk to others even in a far-away place.Who am I?Mobile phone There is no doubt that Im also a machine. There are some numbers and letters on me. People often use me t

3、o play games, and teachers often use me to give lessons.Who am I?computerReadingWHO AM I?1. Who is the speaker in this story? 2. Whats the main idea of this passage? A. The development of computers. B. The development and use of computers. C. A machine which is simple-minded. D. Computers may replac

4、e human beings.3. The text is written in the order of . A. time B. space C. logic D. all the aboveA computer.While-reading(1):1642: 1822: 1936: 1940s:1960s: 1970s: The computer began as a calculating machine. The Analytical Machine was built by Charles Babbage.The computer grew rapidly both in size

5、and in brainpower. Computer had grown as large as a room.Computers were used in offices and homes.The first family of computers was connected by a network. Many new applications have been found for computers.Now:Computers connect people all over the world together.While -reading(2):(Universal machin

6、e)Why could you “think” logically and produce an answer quicker than any person?I totally changed my shape, because .Many new applications have been found for me, such as .(translation) Over time my memory has developed so much that, like an elephant, I never forget anything I have been told.While-r

7、eading(3):Why could you “think” logically and produce an answer quicker than any person? Because I was programmed by an operator who used cards with holes.While-reading(3): 2.I totally changed my shape, because my memory was first stored in tubes, then on transistors and later on verysmall chips.I t

8、otally changed my shape！While-reading(3):3. Many new applications have been found for me, such as communication/ finance/trade/ robots/ mobile phones/ medicaloperations/ space rocketsCareful-reading:4. (translation) Over time my memory has developed so much that, like an elephant, I never forget any

9、thing I have been told. 隨著時間的推移，我的記憶力發(fā)展的如此之快，就像一頭大象，我從來不會忘記告訴我的任何事情。While-reading(3): One of you bought a computer yesterday. Talk about the advantages and disadvantages about computers.Make a dialogue Post-reading: pair-workAdvantages listen to the music see films watch news communicate with friend

10、s buy things on lineDisadvantages play computer games too much chat（聊天）（聊天） on the Internet too much little time to study Homework 1. Writing (about 80-100 words) The Use of Computers in Our Daily Life2. Preview language points of this text and finish the exercises on P153-155（學(xué)案）http:/www.99dyw.co/ 九九電影網(wǎng)九九電影網(wǎng) http:/www.99dyw.tv/ 九九電影網(wǎng)九九電影網(wǎng) http:/http:/九九電影網(wǎng)九九電影網(wǎng) 天堂網(wǎng)天堂網(wǎng)2014 天堂網(wǎng)天堂網(wǎng) 天堂網(wǎng)天堂網(wǎng) 天堂網(wǎng)天堂網(wǎng) 天堂網(wǎng)天堂網(wǎng) 天堂網(wǎng)天堂網(wǎng) 天堂網(wǎng)天堂網(wǎng) 天堂網(wǎng)天堂網(wǎng) 天堂網(wǎng)天堂網(wǎng) 天堂網(wǎng)天堂網(wǎng) 天堂網(wǎng)天堂網(wǎng) 天堂網(wǎng)天堂網(wǎng)201