人教版必修二Unit3-Computers-Reading公开课

Guess!Atoy?Ahandbag?Iamveryoldnow.IwasborninChina.Manypeopleusedmeforcalculatinginthepast,butnowIamabitlonelybecausetheydon’tlikemenow.DoyouknowwhoIam?abacusGuessmore:Iamverysmall.Icanbeusedforcalculating.InChina,alotofstudentsusemewhensolvingmathematicalproblems.DoyouknowwhoIam?calculatorIcanbeusedforcalculating.Besides,IcanalsobeusedforwatchingDVD,sendinge-mailandcommunicatingthroughtheInternet.However,IamnotaPC,becauseI’msmallenoughforyoutotakemewithyou.notebookcomputer/laptopDoyouknowwhoIam?AhugecomputerAPCPalmtop(掌上电脑)calculatorabacuslaptopworkforusinMars(火星)What’snext?carrythingsworkinwars(战斗)仿真机器人entertainment娱乐Whatdoyouthinkwillbethenextdevelopment?WhoamI?Skimming:Readthepassageandchoosethebestanswers.1.Whatcanwelearnfromthetext?AComputerhasashorthistory.BNooneknowscomputerwhenthefirstcomputerwasmade.CComputersarenotwidelyusedeventoday.DComputersarewidelyused.2.Whowasthecomputer’srealfather?AAlanTurningBNotmentionedinthetext.CBillGatesDCharlesBabbage3.Thecomputeralmostchangedcompletely_______.Ain1642Bin1882Cinthe1960sDinthe1970sDAC4.Whenwerethecomputersconnectedfirstly?AInthe1970sBIntheearly1960sCIn1936DIn18225.Whichofthefollowingstatementsisnotright?AComputerhasalonghistory.BComputerhaschangedgreatlysinceitwasfirstmade.CComputersarewidelyusednow.DComputerwasbroughtintopeople’shomeinthe1960s.ScanningReadthepassagequicklyanddecidewhetherthefollowingsentencesareTrueorFalseOvertimeI_______________(change).Ibeganasa____________machineinFrancein1642.AlthoughIwasyoungIcould______difficultsums.Ittooknearlytwohundredyears______Iwasbuiltasan__________machinebyCharlesBabbage.AfterIwasprogrammedbyan________,Icouldthink________andproduceananswerquickly.Atthattimeitwasconsidereda____________________andthestartofmy__________________.In1936,AlanTuringwroteabookabouthowIcouldbemadetoworkasa“_________machine”tosolvedifficult_________problem.___________,Igrewrapidlybothin____andin__________.Astimewentby,Iwasmade_______.____asaPCand_____asalaptop,Ihavebeenusedin______and_______sincethe1970s.havebeenchangedcaculatingsimplifybeforeanalyticaloperatorlogicallytechnologicalrevolutionuniversallogicallyartificialintelligenceFromthenonsizebrainpowersmallerFirstthenofficehome1.Ibecamesmallerasmymemorywasstoredfirstinchipsandthentubesandtransistors.2.OvertimemymemoryhasdevelopedsomuchthatIneverforgetanythinglikeanelephant.3.IwasgivenafamilyandwasabletosharemyknowledgewithothersthroughtheWorldWideWebsincetheearly1970s.1.Sincethe1970smanynew____________havebeenfoundforme.Ihavebecomeveryimportantin______________,__________andtrade.Ihavealsobeenputinto_______andusedtomake________phonesaswellashelpwithmedical__________.Ihavebeenputintospace________andsentto_______theMoonandMars.________,mygoalistoprovidehuman____alifeofhighquality.Iamnow______withhappinessthatIamadevotedfriendofthe__________.applicationscommunicationfinancerobotsmobilerocketsfilledoperationsoperationsAnyhowwithhumanraceThecomputer________acalculatingmachinein1642,thenin1822,itwasbuiltasan______________by________________.Attheyearof1936,AlanTuring_____________todescribehowcomputers______________towork,andbuilda“universalmachine”tosolve____________________.Withthedevelopmentof____________________beganasAnalyticalMachineCharlesBabbagewroteabookcouldbemadeprobleminformationtechnologymathematicalSummaryaboutthetext.inthe1960s,computershadnew__________andbecame_______________,thenwereconnectedtoeachotherby_________.Astheyearshad__________,computerswere___________people’shomes.Nowcomputershavebecomethemostimportant_________to_____________allovertheworldtogether.transistorssmallerandsmalleranetworkgonebybroughtintotoolsconnectpeopleWhataretheadvantagesanddisadvantagesofthecomputers?Inmyopinion,Icanusethecomputerto….DiscussionWecanusethecomputerto…….listentomusicWatchmoviessearchfor…communicatewith…doshoppingAdvantagesWecanusethecompuersto…1.usetheInternettosearchforinformation2.Entertainourselveswithnews,games,movies,andsongs3.goshoppingonline4.downloadusefulmaterial5.useQQ/WeChattomakefriends7.communicatewithothers1.Somestudentsmaygettooaddicted(沉溺于)toit.2.Somestudentswastetoomuchtimeinplayingcomputergames.3.Somestudentsspendtoomuchtimeinchattingwithothersandmaybecheated(欺骗)bysomeoneonline.4.Asaresult,theyhavelittletimetostudy5.Itisbadforoureyesandhealthtospendlongtimeinfrontofcomputers.DisadvantagesHomework:1.Readthepassagefluently.2.DoExonperiod2.3.Retellthepassage.