高中英语 Unit3 Warming up课件 新人教版必修2 课件VIP免费

Unit3ComputersPeriod1WarmingupUnit3ComputersPeriod1WarmingupHeavy!Difficult!Hard!Tired!1.Easy!2.Fast!3.Free!keyboardmousemonitorscreenspeakerhostcomputercameraWhatdotheyhaveincommon?anabacusacalculatoradesktopanotebookcomputeralaptopdigitalcameraarobot(Whatdotheyhaveincommon?)Ithinkthat…Inmyopinion…Ibelievethat…What’syourreason?Whydoyouthinkso?1.Theycanbeusedforcalculating.2.Theycandealwithmathsproblems.3.Theyareourfriends.4.Theyareusefulandhelpful.DiscussionworkforusinMars(火星)What’snext?carrythingsworkinwars(战斗)仿真机器人entertainment娱乐Whatdoyouthinkwillbethenextdevelopment?CD--DVD-ROM---DVDRWCRTmonitorLCDmonitorLCDmonitorCPUharddiscchips/motherboardsomehardware:使用阴极射线管(CathodeRayTube)的显示器LiquidCrystalDisplaykeyboardmousemodemscannerprinterspeakerfloppydisc/diskUSBflashdiscCD/VCD/DVDMP3playerMP4playerMemory:(存储器)移动硬盘USBFlashdisc1TB固态硬盘1T硬盘Harddisc:Core2Duo酷睿2:4核龙芯8核cpu:otherusefulwordsandexpressionsaboutcomputer:Network网络Virus病毒Download下载Upload上传Program程序Website站点Hacker黑客Homepage主页Password密码Desktop桌面Username用户名Click点击Software软件Hardware硬件Homepage主页Reading:WhoamI?Skimming:Readandanswerthesequestions:2.Whowasthefirstpersontoinventtheearliestcomputer?3.Whowasthenextimportantpersontodesigncomputers?CharlesBabbageAlanTuring1.WhoamI?Acomputer.timelinetimeline1642:1822:1936:1940s:1960s:1970s:Now:Scanning:Thecomputerbeganasacalculatingmachine.theAnalyticalMachinewasbuiltbyCharlesBabbage.Thecomputergrewrapidlybothinsizeandinbrainpower.Computerhadgrownaslargeasaroom.Computerswereusedinofficersandhomes.Computersconnectpeopleallovertheworldtogether.thefirstfamilyofcomputerswasconnectedtoeachotherThehistoryofcomputersthesecondgeneration(1956-1963)thesecondgeneration(1956-1963)thethirdgeneration(1964-1971)thefourthgeneration(1971-)Thefirstgeneration(1945-1956)Thefirstgeneration(1945-1956)Thedevelopmentofcomputers:CalculatingmachineAnalyticalmachineUniversalmachineArtificialintelligenceComputerInternet计算器分析机万能机,通用机器人工智能Develop-mentEarlydaysNameFunctionPoorStrongA_________machineSimplifydifficultsumsAn________machineThinklogicallyandproduceananswerquicklyA_________machineSolvedifficult______________________calculatinganalyticaluniversalmathematicalproblemsDevelop-mentNetworktimes_________storedinTubesLargeSmall____________Smallchips________________NarrowWideFinance________RobotsMobilephones___________SpacerocketsMedicaloperationsMemoryTransistorsApplicationsCommunicationTradeIntensivereading:Underlinethephrases&sentencesthatyouthinkareimportantStarsentences:P1L2I_______instructionsfromcardswithholes.P15EarlierIwasnotverybig,butthenIbecame______.P1L6However,peoplethoughtIwas___________untilthey_________Ihad“artificialintelligence.”我执行穿孔卡的指令早些时候我并不是很大，但是后来我变得非常大可是，人们认为我头脑简单，直到发现我有人工智能时，他们才不那么想了。followedhugesimple-mindeddiscoveredP1L8Astheyearshave________,Ihavebeenmadesmallerandsmaller.P2L1Therewere______whenmysizewas________changed.P2L3ButIwasalwayssolonely_______therebymyself,untilintheearly1960s,theygavemeafamily________byanetwork.随着岁月的流逝，我被做得越来越小了.有段时期我的体积完全变了但是我总是孤孤单单地站在那里，直到60年代初，人们才给了我一个用网络连接的家庭。gonebytimestotallystandingconnectedAdvantagesanddisadvantagesofthecomputers.Discussionadvantageswecancommunicatewithfriendslistentothemusicseefilms&watchnewsplaygamesdoshoppingsavealotoftimedoalotofusefulthingsDisadvantagesSomepeopleespeciallytheteenagersabandon(沉迷于)themselvestothecomputergamesandchattingontheInternet.Asaresult,theyhavelittletimetostudy.Somepeopleusethecomputerwrongly.Homework1.Reviewthetext2.ReciteParaone3.FinishEx.1/2onPage20.