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4第1页/共36页3第2页/共36页2第3页/共36页1第4页/共36页第5页/共36页第6页/共36页第7页/共36页第8页/共36页第9页/共36页第10页/共36页Unit 3 Computers reading第11页/共36页2022-5-22Who am I? Frank Li12Skimming: Read and answer these questions:2. Who was the first person to invent the earliest computer? 3. Who was the next important person to design computers? Charles BabbageAlan Turing1. Who am I?A computer.第12页/共36页Lets have a more detailed reading!第13页/共36页1936(1822)LatterAnd lattera calculating machine, in 1642an analytical machine, (in 1822), Charles Babbagea universal machine, in 1936, Alan Turinga huge computer, as large as a room, in 1940sa personal computer and a laptop, and used in offices and homes since the 1970s第14页/共36页a calculating machine, in 1642帕斯卡计算器是由布莱斯帕斯卡(Blaise Pascal)发明的，帕斯卡计算器可以把一长串数字相加，在他的计算器中有一些互相联锁的齿轮，一个转过十位的齿轮会使另一个齿轮转过一位，人们可以像拨电话号码盘那样，把数字拨进去，计算结果就会出现在另一个窗口中。第15页/共36页an analytical machine, (in 1822)分析机是由英国数学家查尔斯巴贝奇设计的一种机械式通用计算机。它的设计逻辑却非常的先进，是大约100年后电子通用计算机的先驱。第16页/共36页a “universal machine”, in 1936(not a real machine, but just a mathematical model)第17页/共36页 a huge computer, as large as a room, in the 1940s尺寸（英尺） 3050电容(个)10000重量（吨）30开关(个)6000真空管(个)18800耗电（W）150000电阻(个)70000成本（1940年） $40万ENIAC第18页/共36页第19页/共36页technical words Memory: storage or storage capacity as of a computer, disk, etc. 第20页/共36页The World Wide Web第21页/共36页第22页/共36页Para.3 Find some supporting details for the topic sentence.(1 minute.) Since the 1970s many new applications have been found for me.第23页/共36页 Since the 1970s many new applications have been found for me. communications finance trade robots mobile phones medical operations space rockets exploring the Moon and Mars第24页/共36页Name : computer Born : (time)_ (place) _My real father: _My size: 1._( in the past) 2._(modern)My history: 1. 1642 _machine 2. 1822_machine 3. 1936 _machine 4. 1940s _ 5. 1970s _ and _My memory: _ _ _ My applications: _; _; _; _; _; _; _. 1642France Alan Turinghugesmaller and smalleranalytical calculatinguniversallaptopPCtubestransistorschipscommunicationfinancerobotmobile phonespace rocketmedical operationtradehuge computer第25页/共36页1.personification（拟人） 2.narrative perspective: first-person narrative（叙述角度：第一人称角度）3.chronological order(时间顺序)4.main ideas and supporting details （主旨+支撑细节）第26页/共36页How do we use computers in daily life?communicationentertainmentinformationwork and jobcommerce/finance online第27页/共36页communicationchattingsending E-mailsexpressing ideas onlinemaking new friends第28页/共36页entertainmentplaying gameswatching movieslistening to music第29页/共36页informationreading newssearching for useful information, such as price information, job information and so onasking questions and seeking for help第30页/共36页commerce/finance onlineshopping onlinetransferring accountspaying all kinds of bills, such as water & electricity fees, cell phone fees and so onspeculating in stocks online第31页/共36页work and jobusing computers to do jobsapplying for jobs onlinedoing research第32页/共36页2022-5-22Who am I? Frank Li33 advantages we cancommunicate with friends listen to the music see films & watch news play games do shopping save a lot of time do a lot of useful things DisadvantagesSome people especially the teenagers abandon (沉迷于沉迷于) themselves to the computer games and chatting on the Internet. As a result, they have little time to study .Some people use the computer wrongly. 第33页/共36页2022-5-22Who am I? Frank Li34Homework1. Review the text2. Period 1 EX33. Copy and remember the new words第34页/共36页第35页/共36页2022-5-22Who am I? Frank Li36感谢您的观看！第36页/共36页
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