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单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,Click to edit Master title style,Click to edit Master text styles,Second level,Third level,Fourth level,Fifth level,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,By Jen,Unit 3,Computers,By JenUnit 3,Look at the following pictures and tell their English names.,abacus,calculator,Look at the following pictures,huge computer,PC,personal computer,huge computer PC,laptop,PDA,Personal Digital,Assistant,laptopPDA,robot,robot,Can you tell the development of computers?,abacus,calculator,huge computer,PC,laptop,PDA,robot,Can you tell the development o,Do you know in what ways computers are used today?Discuss it with your deskmate.(2 min),Do you know in what ways compu,search for information,watch movies,search for informationwatch mo,listen to music,read books and magazines,listen to musicread books and,buy things online,play games on the computer,buy things onlineplay games on,Reading,Who am I?,Reading Who am I?,Can you find out the,topic sentence,of each paragraph?,Can you find out the topic sen,Para I:,Para II:,Para III:,Who,am,I?,Over time I have been changed,quite 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),Para I:Para II:Para III:Who S,Can you find out the,main idea,of this passage?,A.The development of computers.,B.A machine which is simple-minded.,C.The development and the applications of computers.,D.Computers may replace human beings.,Can you find out the main ide,Read,para 1,and fill in the chart.(2 mins),Careful reading,Time,Machine,Applications,In 1642,A _,machine,_difficult sums,About in _,An,analytical,machine,Think_,In 1936,A _,machine,Solve any difficult problem,By the 1940s,A larger machine,_worried the designers,_,Personal,computer/,Laptop,_,calculating,Simplify,1822,logically,universal,Reality,Since the 1970s,Used in offices,and homes,Read para 1 and fill in the ch,My shape didnt change even though my memory improved.,The older I am,the larger I have become.,Over time I have large memory so that I will not forget anything I have been told.,I was able to share my knowledge with others through the World Wide Web in the early 1960s.,F,F,T,T,The 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 true or false.(1 min),My shape didnt change even th,1,2,What 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),12What roles do computers play,What are the new,applications,of the computer?,Communication,finance,mobile phones,Trade,medical operation,space rockets,robots,What are the new applications,What 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.,What roles do computers play i,1642,1822,The analytical machine was made by Charles Babbage.,1936,1940s,1960s,The first family of computers was connected to each other.,1970s,Now,Timeline:,Find out the development of computers in the following years.(1 min),The computer began as a calculating machine,The 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 helper of the,human race.,16421822The analytical machine,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,Discussion In what ways compu,carry things,carry things,drone,work in wars,dronework in wars,do space research,do space research,Homework,Finish exercise 1 on page 20,Find out some sentences of the passage you dont understand.We will discuss it in next class.,Homework,Thank you!,Thank you!,知识回顾,Knowledge Review,祝您成功！,知识回顾Knowledge Review祝您成功！,
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