人教版高中英语必修二课件：Unit3-Warming-up

ComputersWordsandexpressionswordsandexpression数学的计算器信息技术个人电脑依...看,据...认为优点缺点算盘掌上电脑Vt.CalculateInformationTechnologyPersonalComputeradvantagedisadvantageabacuspalmtopInone’sopinionMathematicalCalculator(n.)ITPCHowmuchdoyouknowaboutacomputer???GivetheEnglishnameforthecomputercomponents(组件)keyboardmousemonitorscreenspeakerhostcomputer123456WhatisitinEnglish??Mainboard(主板)WhatisitinEnglish??CPU(centralprocessingUnit)中央处理器RAM(随机存储器)(RandomAccessMemory)WhatisitinEnglish??Powersupply(电源)WhatisitinEnglish??displaycard显卡WhatisitinEnglish??WhatisitinEnglish??harddisc硬盘DVDROM数字通用光盘WhatisitinEnglish??floppydiscUSBFlashDiskmodemscannerprintermonitorscreenmousekeyboardharddiskDVD-ROM(1)thepartofthecomputerthatlookslikeatelevision.(2)thepartofthemonitorthatyoulookat.(3)somethingyouusetoclickonthings(files,etc.)(4)thepartofthecomputerthatyoutypeon.(5)thepartofacomputerthatstoresinformation.(6)ThepartofcomputerthatwecanputaCDin.WorkoutthenamesComputerandInternettypemyhomeworkdrawpicturesplaygamescommunicatewithmyfriends.gatherinformationformylessonslistentomusicwatchmovies……Besidescomputer,whatelsecanwegetinformationfrom?1.WhatdoesITmean?2.Howtospeak科学技术inEnglish?3.WhatdoesPCmean?4.Howtospeak人工智能inEnglish?5.WhatdoesPDAmean?6.Howtospeak笔记本电脑inEnglish?7.WhatdoesW.W.Wmean?8.Whatcancomputersbeusedtodoinourdailylife?Howmuchdoyouknowaboutcomputers?informationtechnologyscienceandtechnologyartificialintelligencePersonalComputerpersonaldigitalassistantWorldwidewebnotebookcomputer/laptop……Doyouthinkthecomputerreallyhelpstoyourstudy?Why?•Ithinkthat…•Inmyopinion…•Ibelievethat…•Iagreebecause…•Idisagreebecause…Givinganopinion:Makegooduseofitbutnevergettrappedbyit.ConclusionThereisnodoubtthatcomputerhastwosides,too.Ifwemakegooduseofit,itwillmakeourlivesmorecolorfulandconvenient.Butdon’tloseyourselfinplayingcomputers.Justremember:Keepfit,studywellandworkhard.Atoy?Ahandbag?Riddles(谜语):WarmingupPage17Iamveryoldnow.IwasborninChina.Manypeopleusedmeforcalculatinginthepast,butnowIamabitlonelybecausetheydon’tlikemenow.DoyouknowwhoIam?abacusRiddles(谜语):Iamverysmall.Icanbeusedforcalculating.InChina,alotofstudentsusemewhensolvingmathematicalproblems.DoyouknowwhoIam?calculatorRiddles(谜语):Icanbeusedforcalculating.Besides,IcanalsobeusedforwatchingDVD,sendinge-mailandcommunicatingthroughtheInternet.However,IamnotaPC,becauseI’msmallenoughforyoutotakemewithyou.Notebook/laptopDoyouknowwhoIam?Riddles(谜语):Inpairsdiscusswhattheyhaveincommon.AnabacusisanoldcalculatingmachineusedinChinauntilnow.Acalculatorisanewcalculatingmachinewhichcansolvealargenumberofmathematicalproblems.Ahugecomputerisbuilttosolvesomemathematicalproblems.Butitistoobig.APCisapersonalcomputerwhichcansolveallkindsofproblemsandiswidelyusednow.PDAAlaptopisakindofusefulcomputerwhichcanbetakenconvenientlylikeanotebook.仿真机器人robot(Whatdotheyhaveincommon?)•Ithinkthat…•Inmyopinion…•Ibelievethat…•What’syourreason?•Whydoyouthinkso?1.Theycanbeusedforcalculating.2.Theycandealwithmathsproblems.3.Theyareourfriends.4.Theyareusefulandhelpful.DiscussionabacushugecomputerPCcalculatorlaptopPDAWhat’snext?Whatdotheytellyouaboutthedevelopmentofcomputers?robotWhatdoyouthinkwillbethenextdevelopment?Discussion有人预测现行的计算机体系将在2010年遇到无法逾越的障碍。但从目前的技术发展趋势来看，新技术不断被应用到计算机行业，Moore定律至少到2010年仍会有效，届时计算机的基本构造应不会有大的改变。另一方面，在沿着传统框架发展高性能计算机的同时，一些新型的计算机体系也已被提出，有些已从根本上突破了冯.诺依曼计算机体系与电子技术的局限，这方面的工作得到了多方面的重视。未来高性能计算机目前可分为量子、超导、光子和DNA计算机四种类型。incommon:fororbyallofagroup共同的；共有的；共用的thelandownedincommonbytheresidents居民共有的土地incommon常常同have连用，如：havenothingincommon无共同之处havelittleincommon几乎无共同之处havesomethingincommon有一些共同havealotincommon有许多共同之处Whatdoyouthinkwillbethenextdevelopment?doyouthink为插入语，位于特殊疑问句中间，不必用逗号隔开。作插入语的其他的动词还有believe，imagine,suppose,consider,suggest等。注意：疑问词在句中作主语时，将插入语放在疑问词后、谓语动词之前，其他不变，如将插入语撤走原句式不变：Whatwillbethenextdevelopment?疑问词在句中不是作主语时，如作状语，将插入语放在疑问词后，其他成分要成为的宾语从句，即要用陈述语序。Whydoyouthinkshewaslateagain?Whendoyouconsidershewillarrive?