高中英语人教版必修二uniReadingPPT课件.ppt

Unit3Computers 1 Guessinggame 2 Guess Atoy Ahandbag Computers 3 keyboard mouse monitor screen speaker hostcomputer WhatEnglishwordsdoyouknowaboutcomputers 4 Iamveryoldnow IwasborninChina Manypeopleusedmeforcalculatinginthepast butnowIamabitlonelybecausetheydon tlikemenow DoyouknowwhoIam abacus Guessmore 5 Iamverysmall Icanbeusedforcalculating InChina alotofstudentsusemewhensolvingmathematicalproblems DoyouknowwhoIam calculator 6 Icanbeusedforcalculating Besides IcanalsobeusedforwatchingDVD sendinge mailandcommunicatingthroughtheInternet However IamnotaPC becauseI msmallenoughforyoutotakemewithyou notebookcomputer laptop DoyouknowwhoIam 7 Ahugecomputer PC thehistoryofthecomputer PDA calculator abacus laptop 8 Writeoutallthewordsyouknowaboutcomputers computer monitor click software search update download Internet keyboard 9 WhoamI 10 Skimming Gooverthestorytofindoutwhothespeakeris Writedown3sentencestosupportyouridea IwasabletosharemyknowledgewithothersthroughtheWorldWideWeb MyrealfatherwasAlanTuring IwasbuiltasanAnalyticalMachinebyCharlesBabbage 11 12 Timeline Thecomputerbeganasacalculatingmachine Thecomputergrewrapidlybothinsizeandinbrainpower Thecomputerhadgrownaslargeasaroom 1960s Computerswereusedinofficesandhomes Computersconnectpeopleallovertheworldtogether 1642 1822 TheAnalyticalMachinewasmadebyCharlesBabbage 1936 1940s Thefirstfamilyofcomputerswasconnectedtoeachother 1970s Now Scanning 13 OvertimeIhavebeenchangedquitealot CalculatingmachineAnalyticalmachineUniversalmachinePClaptop Thesechangesonlybecamepossibleasmymemoryimproved TubesTransistorsChipsNetworkWorldwideweb Sincethe1970smanynewapplicationshavebeenfoundforme CommunicationsFinanceTradeRobotsMobilephonesMedicaloperationsSpacerocketsProvidingalifeofhighquality 14 calculating analytical cardswithholes universalmachine 15 memory laptop theearly1960s share network ways 16 2019 12 30 17 Task5QUESTION ANSWERCOMPETITION 18 WhatisPC Speakthenameonthewhole Itmeans personalcomputer 2 WhatisIT InformationTechnology 3 WhatisPDA Personaldigitalassistant 4 WhatisW W W Worldwideweb 19 5 科学技术 Scienceandtechnology 6 人工智能 Artificialintelligence 7 笔记本电脑 Notebookcomputer 8 Whowasthecomputers realfather AlanTuring 20 Whataretheadvantagesanddisadvantagesofthecomputers Inmyopinion Icanusethecomputerto Discussion 21 Wecanusethecomputerto listentomusic Watchmovies searchfor communicatewith doshopping 22 AdvantagesWecanusethecompuersto 1 useacomputerforschoolwork2 playgamesonthecomputer3 sendemailstofriends4 downloadmusicandfilms5 goshoppingonline6 useQQmunicatewithothers 23 8 usetheInternettosearchforinformation9 surfthewebforfun10 readnewsbothathomeandabroad readbooksandmagazines 24 DisadvantagesSomestudentsmaygettooaddicted 沉溺于 toit Somestudentswastetoomuchtimeinplayingcomputergames Somestudentsspendtoomuchtimeinchattingwithothersandmaybecheated 欺骗 bysomeoneonline Asaresult theyhavelittletimetostudyItisbadforoureyesandhealthtospendlongtimeinfrontofcomputers 25 Howusefulcomputersare Internet 26 Computershavegreatpower Theymakeourlivesmorecolorfulandmoreconvenient BUTDon tjustusecomputersforfun Don tspendtoomuchtimeinplayingcomputergamesorchatting 聊天 online Weshouldlearnmorecomputerskillswhichareveryusefulinourfuturework 27 Summaryaboutthetext Thecomputer acalculatingmachinein1642 thenin1822 itwasbuiltasan by Attheyearof1936 AlanTuring todescribehowcomputers towork andbuilda universalmachine tosolve Withthedevelopmentof beganas AnalyticalMachine CharlesBabbage wroteabook couldbemade mathematicalproblem informationtechnology 28 inthe1960s computershadnew andbecame thenwereconnectedtoeachotherby Astheyearshad computerswere people shomes Nowcomputershavebecomethemostimportant to allovertheworldtogether transistors s