高中英语必修·Unit·Computersppt课件.ppt

Guess Computers 1 Unit3Computers 2 Iamveryoldnow IwasborninChina Manypeopleusedmeforcalculatinginthepast butnowIamabitlonelybecausetheydon tlikemenow DoyouknowwhoIam abacus b k s 算盘 warming up 3 Iamverysmall Icanbeusedforcalculating InChina alotofstudentsusemewhensolvingmathematicalproblems DoyouknowwhoIam calculator k lkj le t 计算器 4 Icanbeusedforcalculating Besides IcanalsobeusedforwatchingDVD sendinge mailandcommunicatingthroughtheInternet However IamnotaPC becauseI msmallenoughforyoutotakemewithyou notebookcomputerlaptop l pt p 笔记本 DoyouknowwhoIam 5 whatdotheyhaveincommon calculating 6 pre reading theusageofcopmuters caculating playgames communicate watchvideos courseware 7 WhoamI lookatthistitleandthesetwopictureswhatisthispassagegoingtotalkabout 8 Skimming 4min Gooverthestorytofindoutwhothespeakeris Itisacomputer 9 Timeline Thecomputerbeganasacalculatingmachine 1842 AlanTuringwroteabooktodescribehowcomputerscouldbemadetowork Computershadgrownaslargeasaroom 1960s Computerswereusedinofficesandhomes Computersconnectpeopleallovertheworldtogether Scanning Inwhichorderisthetextorganized 10 TrueorFalseandyourreason AlanTuringbuiltanAnalyticalMachinetosolveanymathematicalproblems Peoplebegantorealizethatthecomputergotclevererandquickerwithtimepassing Thecomputerbegantoservethehumanracesinceitwasbroughtintopeople shomes 4 Thelargerthecomputeris themorememoryithas F T F F 11 Completethechartbelow Scanning ReadingComprehension 12 OvertimeIhavebeenchangedquitealot 1calculatingmachine2analyticalmachine3universalmachine4PC5laptop 13 Thesechangesonlybecamepossibleasmymemoryimproved 1tubes2transistors3chips4network5WorldWideWeb 14 Sincethe1970smanynewapplicationshavebeenfoundforme 1communications2finance3trade4robots5mobilephones6medicaloperations7spacerockets8providingalifeofhighquality 15 Thehistoryofcomputers 16 Thedevelopmentofcomputers Calculatingmachine Analyticalmachine Universalmachine Artificialintelligence Computer Internet 计算器 分析机 万能机 通用机器 人工智能 17 wesaythecomputerhaschangedinmanyways buthow Size Intelligence Speed Function memory smaller quicker cleverer more bigger 18 1 What sthemainideaofthetext A Thecomputerwantstofind whoheis B Thefunctionalchangeofthecomputer C Thecomputerbecomespopulararoundtheworld D Theroadtothemoderncomputer Comprehending 19 2 Whatcanyouinfer 推论 fromthetext A Thecomputerhasartificialintelligence B Thecomputerchangesalotovertheyears C Thecomputerwasnotconnectedbyanetworkuntilintheearly1960s D Nowthecomputercanonlybeusedtodealwithinformation 20 3 HowdidthecomputerworkasanAnalyticalMachine Thecomputerfollowedinstructionsfromcardswithholes 21 1960s Consolidation Retelling 22 1Amonitoris2Thescreenis3Akeyboardis4Amouseis5ACD ROMis6Aharddiskis a thepartofacomputerthatstoresinformation b thepartofthecomputerthatyoutypeon c thepartofthecomputerthatlookslikeatelevision d somethingyouusetoclickonthings files etc e thepartofthemonitorthatyoulookat f aseparatediskthatcontainslotsofinformation Matchthewordswiththeirmeanings 23 Advantagesanddisadvantagesofthecomputers Discussion 24 Advantageswecancommunicatewithfriendslistentothemusicseefilms watchnewsplaygamesdoshoppingsavealotoftimedoalotofusefulthings DisadvantagesSomepeopleespeciallytheteenagersabandon 沉迷于 themselvestothecomputergamesandchattingontheInternet Asaresult theyhavelittletimetostudy Somepeopleusethecomputerwrongly 25 Whataboutinthefuture 26 Supposeyouareareporter NowyouareinterviewingMr MissComputer Samplequestions Whatdoyouliketoeat Whatareyourhobbies Whatisyournewest