人教版高中英语必修二Unit3-computers-reading课件-(共26张).ppt--(课件中不含音视频)

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1、By JenUnit 3 ComputersLook at the following pictures and tell their English names.abacuscalculatorhuge computer PCpersonal computerlaptopPDA Personal Digital AssistantrobotCan you tell the development of computers?abacuscalculatorhuge computerPClaptopPDArobotDo you know in what ways computers are us

2、ed today?Discuss it with your deskmate.(2 min)search for informationwatch movieslisten to musicread books and magazinesbuy things onlineplay games on the computerReading Who am I?Can you find out the topic sentence of each paragraph?Para I:Para II:Para III:Who am I?Over time I have been changed quit

3、e a lot.These changes only became possible as my memory improved.Since the 1970s many new applications have been found out for me.Skim the passage and find out the topic sentence in each paragraph.(2 min)Can you find out the main idea of this passage?A.The development of computers.B.A machine which

4、is simple-minded.C.The development and the applications of computers.D.Computers may replace human beings.Read para 1 and fill in the chart.(2 mins)Time Machine ApplicationsIn 1642A _machine_difficult sumsAbout in _ An analytical machineThink_In 1936A _machineSolve any difficult problemBy the 1940sA

5、 larger machine_worried the designers_Personal computer/Laptop _calculatingSimplify1822logicallyuniversalRealitySince the 1970sUsed in offices and homes1.My shape didnt change even though my memory improved.2.The older I am,the larger I have become.3.Over time I have large memory so that I will not

6、forget anything I have been told.4.I was able to share my knowledge with others through the World Wide Web in the early 1960s.FFTTThe information was stored in tubes,then on transistors and later on the chips.As I have grown older I have also grown smaller.Read para 2 and then tell the statement tru

7、e or false.(1 min)12What roles do computers play in the life of human beings?What are the new applications of the computer?Read Para 3 and then answer the following questions.(1 min)What are the new applications of the computer?Communicationfinancemobile phonesTrademedical operation space rocketsrob

8、otsWhat roles do computers play in the life of human beings?They provide humans with a life of high quality.They are devoted friends and helpers of the human race.16421822The analytical machine was made by Charles Babbage.19361940s1960sThe first family of computers was connected to each other.1970sN

9、owTimeline:Find out the development of computers in the following years.(1 min)The computer began as a calculating machineThe computer grew rapidly both in size and in brainpower.The computer had grown as large as a room.Computers were used in offices and homes.Computer is a devoted friend and helpe

10、r of the human race.Discussion In what ways computers can be used to do for human race in the future?For example:A:What will computers be developed in the future?B:I think computers will be developed to help us /In my opinion,computers can be used to carry thingsdronework in warsdo space researchHomework1.Finish exercise 1 on page 202.Find out some sentences of the passage you dont understand.We will discuss it in next class.Thank you!Thank you!

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