高中英语教学课件：b2u3reading who am I.ppt

Unit 3 who am I?reading We are able to share our feelings and thoughts through _____________What use can be made of computers?What are the applications of computers?We can apply computers to _______________World Wide Web Topic sentenceParagraph 1Paragraph 2Paragraph 3Over time I have been changed quite a lot.These changes only became possible as my memory improved.Since the 1790s many new applications have been found for me.Main idea: _____________________________the history/ development of computersFast readingWho am I Para.1 How did I change?Careful readingPut the following “changes” of I in right order with the help of the time.Calculating machineUniversal machineAnalytical machineCalculating machineAnalytical machineUniversal machineCalculate/ simplify---Analyze/ think logically--solve- ...and I wondered if I would grow any larger. However, this reality also worried my designers.What’s the problem with universal machine?What’s the feeling of I?Puzzled Para.2 What make the changes possible?firstthenlatertubestransistorschipsMy memory improved.I was connected by a network. Over time my memory has developed so much that, like an elephant, I never forget anything I have been told!A. The memory of an elephant is also stored on very small chips.B. I have grown as large as an elephant.C. I have as good a memory as an elephant.And my memory became so large that even I couldn’t believe it!What is the feeling of “I”?Amazed! Para.3 What are the new applications? have become important in --- have also been put into ---and used to--- have even been put into ---and sent to---What is the feeling of “I”?Happy!Amazed!PuzzledWhat’s the attitude of the writer towards the development of computers?Positive negative doubtfulPositive DiscussionDo you agree that computers can provide us with a life of high quality? Why?Useful expressions:hold the view thatsolve --problemsapplicationbecome very important in---as well asanyhow，so---thathold an opposi