computers.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,*,Unit 3 Computers,Reading,I am a machine,which you can use to type your homework,draw pictures,play games,watch movies,listen to music,communicate with your friends,gather information,Who am I?,A computer,Guessing game,Guess!,A toy?,A handbag?,Computers,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.,Do you know who I am?,abacus,Guess more:,I am very small.I can be used for,calculating.,In China,a lot of students use me when solving mathematical problems.,Do you know who I am?,calculator,I can be used for,calculating,.However,I am not a PC,because Im small enough for you to take me with you.,notebook computer,Do you know who I am?,III.Reading:,Who am I?,1.who am I?,2,In what order is this passage arranged(,安排）,?,Time.,Skimming:,Read the passage quickly and check your prediction.Was it correct?,Then,answer the following questions.,A computer.,Scanning:Para1,Fill in the chart with the information in para 1.,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,_,1842,calculating,Simplify,logically,universal,Used in offices,and homes,Since the 1970s,Reality,Scanning:Para2,My shape didnt change even though my memory improved.,The older I am,the larger I have become.,Over time I have been very easy to forget things because I dont develop enough memory.,I was able to share my knowledge with others through the World Wide,Web,in the early 1960s.,T,or,F,Questions,F,F,F,T,Read paragraph,two,and complete the chart,Paragraph two,Topic sentence,Supporting,details,These changes only become possible as my memory improved.,5.world Wide Web,tubes,2.transistors,3.small chips,work,Paragraph three,Topic sentence,Supporting,details,Since the 1970s many new,applications,have been found for me.,Read paragraph,three,and complete the chart,munications,2 finance,3.trade,4.robots,5.mobile phones,6.medical operations,7.space rockets,What role do computers play in the life of human being?,Scanning:Para3,They,provide,humans,with,a life of high quality.,They are devoted friends and helpers of the,human race,.,Questions,and,Answers,Scanning:Para3,What are the new,applications,of the computer?,Communication,Finance,mobile phones,Trade,medical operation,space rockets,robots,Choose the,main idea,of this passage.,The computer wants to find“who h,e,is”.,B.The function(,功能,)of the computer.,C.The computer becomes popular,around the world.,D.The history,and the,applications,of the computer.,A PC,(),analytical machine,(),calculating,machine,()laptop,()universal,machine,()robot,1,2,3,4,5,6,1642,The Analytical Machine was made by Charles Babbage.,1936,1940s,The first family of computers was connected to each other.,1970s,now,Timeline,The computer began as a calculating machine,1822,Alan Turing wrote a book to describe how computers could be made to work,Computers had grown as large as a room.,1960s,Computers were used in offices and homes,Computers connect people all over the world,together.,Detailed reading,Paragraph1,Paragraph2,Paragraph3,Topic sentence,Support-ing details,calculating machine,tubes,Communication,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.,Changes in size,1._ (earlier),2._ (in the past),3._ (modern),not very big,huge,smaller and thinner,True or False,Alan Turing built an Analytical Machine to solve any mathematical problems.,People began to realize that the computer got cleverer and quicker with time passing.,The computer began to serve the human race since it was brought into people,s homes.,Since the 1970s,the computer was used by people around the world through the Internet.,5.The larger the computer is,the more memory,it has.,F,T,F,T,F,.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,Question-Answer Competition,IV.Post-reading,What dose,PC,stand for,?Speak the full name.,It means:personal computer.,2.What is,IT,?,Information Technology.,3.What is,CD-ROM,?,Compact disc,激光唱片,read-only memory,只读存储器,.,4.What is,PDA,?,Personal digital assistant.,5.What is,W.W.W,?,World wide web.,6.,科学技术。,Science and technology.,7.,人工智能。,Artificial intelligence.,8,.,笔记本电脑。,Notebook computer.,Provide means,supply,.,Provide sb _ sth,Provide sth _ sb,1)This hotel provides a shoe-cleaning service _ guests.,2)A project designed to provide young people _ work,offer sb.sth.=offer sth.To sb.,with,for,for,with,provide,(vt),提供,compare with,把,与,相比较,I compared the copy with the original,but there wa not much difference.,做“与,比较”时，既可以用,with,也可以用,to,但做“把,比作”只能用,to,compare with/to,与,相比（在句中做状语）,compared with,other girls,she is tall.,comparedwithcars,bikesaremore,environmental.,与轿车相比，自行车更加环保。,Comparing,thetwonovels,youwillfindthe,formerclosertolife.,比较一下这两本小说，你会发现前一本更贴近生活,.,用,compare,的正确形式填空,1.with my sister,I lead a happy life.,2.myself with my sister,I lead a happy life.,3.,with the book and you will find that that book is better.,4.,the two books better,he brought them into the sun.,5.the two culture,you will find the differences between them.,Compared,Comparing,Compare,To compare,Comparing,随着岁月的流逝，我被做得越来越小了。,with,和,as,表示 “伴随”,as+clause(,句子,),；,With,的复合结构；表伴随条件原因方式,doing,主动 进行,done,被动 完成,to do,(,表示要干的事情,),adj/adv/,介词短语,As,time,went by,I was made smaller.,with+n./pron.,Exercise:,1.With the boy _the way,，,we found her house easily.,（小男孩已领过路）,2.With the boy _the way,，,we will find her house easily tomorrow.,（小男孩明天将领路）,3.He lay on the bed with the bedroom door_.(shut),leading,to lead,shut,(,lead),(,lead),4,.With nothing _ to burn,the fire became weak and finally died out.,(leave),left,5,.I live in the house with its door _ to the south.,(face),facing,1.,那个淘气的男孩低着头站在老师面前。,2.,她走出图书馆，手里夹着一本大书。,3.,她含着眼泪说了声再见。,4.,你看到一本蓝色封面的词典吗？,The naughty boy stood before the teacher with his head down,She came out of the library,with a large book under her arm,She said goodbye with tears in her eyes.,Have you seen a dictionary with a blue cover?,5.,中国是一个有悠久历史的古老的国家。,6.,学生们抬起头，眼里充满了好奇。,7.,他常常开窗睡觉。,China is an old country with a long history.,The students raised their heads with eyes full of curiosity,He often sleeps with the windows open.,Review the passage.,underline the sentences that you dont understand and try to solve the problems using context clues and the,dictionary.,HOMEWORK,See you,next time!,