新人教必修二_Unit3_Computers-Warming_up_and_Pre-reading.ppt

Unit3ComputersPeriod1Warmingup guessinggame Thewholeclasswillbedividedintofourgroups andeachgroupsendastudenttostandbeforetheplatform whoguesswhattheobjectisandtherestofthegroupmatescanonlydosomemovementstolethisorhergrouprepresentativeguesswhattheobjectisandthegroupmateswhoguesstheobjectmustusethefollowingexpressions Iamamachinewhichisagoodhelperindoinghousework Iwashclothesforpeople WhoamI Riddles 谜语 washingmachine Amachinethatyouusetotalktootherpeopleeveninafar awayplace Weareconnectedbywireorradio Noweachofusoftenhasanumber WhoamI Riddles 谜语 telephone Withthisyoucanwatchdifferentprogrammersjustathome I mamachinethathasascreenwithmovingpicturesandsounds Butwatchingmetoomuchisbadforyoureyes WhoamI Riddles 谜语 TVset Iamveryoldnow IwasborninChina Manypeopleusedmeforcalculatinginthepast butnowIamabitlonelybecausetheydon tlikemenow WhoamI abacus Riddles 谜语 Iamverysmall Icanbeusedforcalculating InChina alotofstudentsusemewhensolvingmathematicalproblems WhoamI calculator Riddles 谜语 Icanbeusedforcalculating Besides IcanalsobeusedforwatchingDVD sendinge mailandcommunicatingthroughtheInternet However IamnotaPC becauseI msmallenoughforyoutotakemewithyou notebookcomputer WhoamI Riddles 谜语 Discussion Isitveryimportanttolearncomputerskillsforus Whyorwhynot Usethefollowingexpressioninyourdiscussion Ithinkthat Inmyopinion Ibelievethat What syourreason Whydoyouthinkso Componentsofacomputer Scanner Printer Monitor FloppyDisk Mouse Speaker Howmuchdoyouknowaboutacomputer GivetheEnglishnameofthefollowingpicturesofthecomputercomponents 组件 WhatisitinEnglish Mainboard 主板 WhatisitinEnglish CPU centralprocessingUnit 中央处理器 WhatisitinEnglish RAM 随机存储器 RandomAccessMemory WhatisitinEnglish harddisc硬盘 WhatisitinEnglish Keyboard 键盘 WhatisitinEnglish Powersupply 电源 WhatisitinEnglish CRTdisplay CathodeRayTube阴极射线管 纯平显示器 WhatisitinEnglish mouse鼠标 WhatisitinEnglish displaycard显卡 DVDROMDigitalVersatileDiscReadOnlyMemory数字通用光盘 WhatcanwedoonacomputerandthroughtheInternet ComputerandInternet typemyhomework drawpictures playgames communicatewithmyfriends gatherinformationformylessons listentomusic watchmovies Use TypingShoppingCalculatingTranslatingPlayinggamesCommunicatingSearchinginformationEditingmultimediadocuments Nowadays whatdoesacomputermeantoyou Ausefulmachine Awiseexpert Aclosefriend Youcanusetheseexpressionsinyourpresentation Ithinkthat Inmyopinion Ibelievethat Iagree disagreebecause Computershavegreatpower Theymakeourlivesmorecolorfulandmoreconvenient BUTDon tforgetthatcomputersaremoderntoolswhichcan ttaketheplaceofrealpeople Neverignorethepeoplebesideyouorevenfaraway commonadj 普通的 共同的 常见的 incommon共同的 共有的 共用的 havenothingincommonhavelittleincommonhavesomethingincommonhavealotincommon Youkno