人教高一英语必修二unitcomputersreadingPPT课件

1、 1.Look at these pictures. Discuss what they have in common. Predict what it is going to be about.第1页/共24页Whats next?第2页/共24页What do they have in common?1.They can be used for calculating. 2.They can deal with maths problems.3.They are our friends.4.They are useful and helpful.Discussion第3页/共24页robo

2、tartificial intelligence第4页/共24页 robot第5页/共24页 第6页/共24页第7页/共24页 2.Look at these pictures and guess what they are.a calculating machine第8页/共24页analytical machineuniversal machinesolve difficult mathematical problems第9页/共24页computer as large as a room第10页/共24页3.Look at these inventions. Can you put th

3、em in an order according to the time when they appeared? After reading the passage, check to see if you are right.( )analytical machine ( ) laptop( ) calculating machine ( ) robot( ) PC ( ) universal machine123456第11页/共24页ReadingWHO AM I?第12页/共24页1. Who is the speaker in this story? 2. Whats the mai

4、n 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 replace 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):第13页/共24页1642: 1

5、822: 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 and in brainpower. Computer had grown as large as a room.Computers were used in offices and homes.The first family of computers was c

6、onnected by a network. Many new applications have been found for computers.Now:Computers connect people all over the world together.While -reading(2):(Universal machine)第14页/共24页While-reading(3):careful readingRead the passage again carefully and finish Ex. 2 on P19 in the student book.Para.1Topicse

7、ntenceSupporting details Over time I have been changed quite a lot.calculating machineanalytical machineuniversal machinePClaptop第15页/共24页1. 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(

8、3):第16页/共24页Para.2TopicsentenceSupporting details Those changes only became possible as my memory improvedtubestransistorschipsnetworkWorld Wide Web第17页/共24页 2.I totally changed my shape, because my memory was first stored intubes, then on transistors andlater on verysmall chips.I totally changed my

9、 shape！While-reading(3):第18页/共24页Para.3TopicsentenceSupporting details Since the 1970s many new applications have been found for municationsfinancetraderobotsmobile phonesmedical operationsspace rocketsprovide a life of high quality第19页/共24页3. Many new applications have been found for me, such asin

10、communi-cation/ finance/ trade/ robots/ mobileRockets.Careful-reading:phones/ medical operations/ space 第20页/共24页4. (translation) Over time my memory has developed so much that, like an elephant, I never forget anything I have been told. 随着时间的推移，我的记忆力发随着时间的推移，我的记忆力发展的如此之快，就像一头展的如此之快，就像一头 大象，我从来不会忘记大象，我从来不会忘记 告诉我的任何事情。告诉我的任何事情。While-reading(3):第21页/共24页How computers have changed our lives?Brainstorm a list of things that you,your school and your family usecomputer for.Discussion: Post-reading: pair-work第22页/共24页Advantages listen to the music see films wa