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1、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What are they?What are they?Welcome to my Welcome to my class!class!First,lets play a First,lets play a game!game!第5页/共36页Huge computerHuge computer第6页/共36页PC(personal computer)laptop(notebook computer)第7页/共36页PDA(personal digital assistant)robot第8页/共36页Are they s
2、ame?Theyre computers in different stages.Whats next?第9页/共36页i-robot(intelligent robot)第10页/共36页WHO AM I?Unit 3 ComputersReadingUnit 3 ComputersReadingUnit 3 Computers reading第11页/共36页2023/3/23Who am I?Frank Li12Skimming:Read and answer these questions:2.Who was the first person to invent the earlies
3、t 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!Read Para.1 in 2 mins and find out the development histoty of computers.Ill give you some clues.第13页/共36页1936(1822)164216421940s1940sLatterAnd
4、 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(Blai
5、se 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
6、/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Para.2Para.2第19页/共36页technical words Memory:storage or storage capacity as of a computer,disk,etc.chiptransistortube第20页/共36页networkThe World Wide Web第2
7、1页/共36页Para.2Para.2Read it by yourselves in 2 min and answer:Where is memory stored?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 municati
8、ons finance trade robots mobile phones medical operations space rockets exploring the Moon and MarsAnyhow,Anyhow,my goal is my goal is to to provideprovide humans humans with with a life a life of good of good quality.quality.第24页/共36页Name:computer Born:(time)_ (place)_My real father:_My size:1._(in
9、 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 ro
10、cketmedical operationtradehuge computer第25页/共36页Writing skillsWriting skills1.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?ComputersComputersBBE EC
11、CDDAAcommunicationentertainmentinformationwork 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
12、 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 t
13、o do jobsapplying for jobs onlinedoing research第32页/共36页2023/3/23Who 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
14、)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2023/3/23Who 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2023/3/23Who am I?Frank Li36感谢您的观看！第36页/共36页