1、ComputersUnit 3Period 1Warming up&readingI am a machine which is a good helper in doing house work.I wash clothes for people.Who am I?Riddles(谜语):washing machine 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 numbe
2、r.Who am I?Riddles(谜语):telephoneWith this you can watch different programmers 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.Who am I?Riddles(谜语):TV set I am very small.I can be used for calculating.In China,a lot of students
3、 use me when solving mathematical problems.Who am I?calculatorRiddles(谜语):I am very old now.I was born in China.Many people used me for calculating in the past,but now I am a bit lonely because they dont like me now.Who am I?abacusRiddles(谜语):I can be used for calculating.Besides,I can also be used
4、for watching DVD,sending e-mail and communicating through the Internet.However,I am not a PC,because Im small enough for you to take me with you.notebook computerWho am I?Riddles(谜语):Heavy!Difficult!Hard!Tired!1.Easy!2.Fast!3.Free!A huge computerA PCPalmtop(掌上电脑)calculatorabacuslaptopa robotDo you k
5、now in what ways computers are used today?Work out a list and compare it with your partner.search for see movieslisten to musicread books and magazinessend emails to friendsdownload music and filmsbuy things on lineplay games on the computerdraw picturesuse a computer for school worktake part in cha
6、t groupsWHO AM I?Reading1.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 replace human beings.A computer.SkimmingReading Comprehension I16421822The compute
7、r began as a calculating machine1936 The computer grew rapidly both in size and in brainpower.Finish the timeline below.ScanningReading Comprehension IIThe analytical machine was made by Charles Babbage.1940sThe first family of computers was connected to each other.1970sNow1960sComputers were used i
8、n offices and homes.Computers connect people all over the world together.The computer had grown as large as a room.These changes only became possible as my memory improved.Since the 1970s many new applications have been found for me.Over time I have been changed quite a lot.Para 1:Para 2:Para 3:Matc
9、h the main ideas and the paragraphs.Reading Comprehension IIIParagraph 1Topic sentenceOver time I have been changed quite a lot.Supporting details1 calculating machine2 analytical machine3 universal machine4 PC5 laptopParagraph 2Topic sentenceThese changes only became possible as my memory improved.
10、Supporting details1 tubes2 transistors3 chips4 network5 World Wide WebParagraph 3Topic sentenceSince the 1970s many new applications have been found for me.Supporting details1 communications 2 finance 3 trade4 robots 5 mobile phones6 medical operations7 space rockets8 providing a life of high qualityBrainstorm a list of things that you,your school and your familyuse computers for.Think about what you wouldhave to do if you could not usecomputers any more.Discussion
