高中英语必修2·Uint3·Computers--reading.ppt

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,*,Welcome,Who am I?,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.,abacus,Can you guess who am I?,I am,a new calculating machine,which can solve a large number of,mathematical problems,.,A calculator,I am built to solve,some mathematical,problems,.But it is,too big,.,A huge computer,I am a,computer,which can solve all kinds of problems and is used widely now.,A PC/desktop,I am a kind of,computer,which can,be taken conveniently(方便).,A laptop/notebook computer,I am a,handheld device,that combines computing,telephone/fax,and networking features.,Who am I?,Reading,1 Who built the first analytical machine?,2 Who was the next important person to design computers?,Charles Babbage built the first analytical machine.,Alan Turing,was,the next important person to design computers,.,Task1,Reading I Fast reading,Task2:True or False?,1.,I began as a calculating machine in Japan in 1642.,2.My real father was Charles Babbage,who wrote a book and build me in 1936.,3.After I got my new transistors in the 1960s,I became bigger but cleverer and quicker.,4.I was brought into peoples homes in the 1970s.,5.Since my birth I have been built to,take the place of human race.,Alan Turing,serve/help,smaller,France,How did the writer organize the text?,According to the time,Timeline,1642:_,1822:_,1936:_,_,1940s:_,_:,1970s:_,Now:,Computers connect people all over the world together.,The computer began as a calculating machine,Alan Turing wrote a book about how computers could be made to work as a universal machine.,The computer had grown as large as a room.,1960s,_ _,Computers were used in offices and homes.,The first family of computers was connected to each other.,The analytical machine was made by Charles Babbage.,Reading II Careful reading,Detailed reading(P19),Paragraph1,Paragraph2,Paragraph3,Topic sentenc-e,Support-,ing details,calculating machine,tubes,communications,finance,analytical machine,universal machine,PC,laptop,transistors,chips,network,World Wide Web,trade,robots,mobile phones,medical operations,space robots,Over time I have been changed quite a lot.,These changes only as my memory improved.,Since the 1970s many new applications,for me.,Reading III,1.,Choose the best answers,1)Whats the,main idea,of the text?,A.The computer wants to find“who he is”.,B.The functional change of the computer.,C.The computer becomes popular around,the world.,D.The history of the computer.,Comprehending:,2)What can you,infer from,the text?,A.The computer has artificial intelligence.,B.The computer changes a lot over the,years.,C.The computer was not connected by a,network until in the early 1960s.,D.Now the computer can only be used to,deal with information.,I began as a _ _ in 1642,in France.In 1822 I was built as an,_ _.Then in 1936 Alan Turing,wrote a book and built a _ _.,As time_ _,I was made _ but my memory got _ and _.In the 1960s they gave me a family connected by_ _.Now people call it the Internet.I was used in _ and _ in the 1970s.Since my birth I have truly been built to serve the human race.,calculating machine,Analytical Machine,universal machine,went by,smaller,larger,larger,a network,offices,homes,Fill in the blanks,What can computers be used to do in our daily life?,In how many ways do we say the computer changed?What are they?,Size:,Intelligence:,Speed:,Function:,People opinion:,smaller,quicker,cleverer,calculating-dealing with,communicating with,clever&useful,Discussion,Should high school students surf the internet(上网)?,I think high school students should,surf the internet because(first,secondly,thirdly),I think high school students should not,surf the internet because(first,secondly,thirdly),1642,began calculating France,1822,The Analytical Machine Charles Babbage,1936,Alan Turing wrote built,1940s,As large as,connected share talk,1970s,Become very important in,now,deal with communicate,1960s,Consolidation:,Retelling,Writing:Should high school,students surf the internet?,Homework:,Good Bye,Thank you!,