1公开课-unit-3-Computers-Who-Am-I

Iamveryoldnow.IwasborninChina.Manypeopleusedmeforcalculatinginthepast,butnowIamabitlonelybecausetheydon’tlikemenow.DoyouknowwhoIam?abacusHaveaguessIamverysmall.Icanbeusedforcalculating.Alotofstudentsusemewhensolvingmathematicalproblems.DoyouknowwhoIam?calculatorIamamachinethatyoucanusetotalktootherpeopleeveninafarawayplace.Youcancarrymearoundyou.Noweachofusoftenhasanumber.DoyouknowwhoIam?cellphoneIamanelectronicmachinethatcanstore,organizeandfindinformation,docalculationsandcontrolothermachines.Mynicknameis“PC”.DoyouknowwhoIam?computerREADINGFastingreadingtogetgeneralideasReadingSkimming1.WhoamI?2.WherewasIborn?InFrance.3.Whoismyrealfather?AlanTuringAcomputer.Readthepassagequicklyandthenanswerthesequestions.TopicsentenceParagraph1Paragraph2Paragraph3OvertimeIhavebeenchangedquitealot.Thesechangesonlybecamepossibleasmymemoryimproved.Sincethe1970smanynewapplicationshavebeenfoundforme.CarefulreadingtogetdetailedinformationReading1642Thecomputerbeganas____________________182219361940sComputershadgrown________________________1960s1970snowAlanTuringwroteabookabouthowcomputerscouldbemadetoworkas__________________Computerswereusedin___________________Computersaredevotedfriendsandhelpersofthe________________________________________wasmadebyCharlesBabbage.Thefirstfamilyofcomputerswasconnectedby___________________acalculatingmachine.TheAnalyticalMachineauniversalmachine.aslargeasaroom.anetwork.officesandhomes．humanrace.SummaryofthetextReadingIt’sknowntousallthatthecomputerisoneofthemostimportantinventionsinthe20thcentury.Thoughit’swidelyusedinourdailylife,itbeganonlyasa1.__________machinein1642.In1822the2._______machinewasmadebyCharlesBabbage.Atthattime,afterthecomputerwas3.____________byanoperatorwhousedcardswithholes,itcould“think”logicallyandproduceananswer4.______thananyperson.Withthetime5.____bythecomputerhasbeenmadesmallerandsmaller,quickerandquicker.Later,thesinglecomputerwas6.________witheachother.Theinformationcouldbe7.________.Sincethe1970smanynew8.____________havebeenfoundforthecomputer.Ithasbecomeveryimportantin9._______________,financeandtrade.Thecomputerisadevotedfriendandhelperofthe10.________race!calculatinganalyticalprogrammedquickergoingconnectedsharedapplicationscommunicationhumanWhatcanweusecomputersfor?Discussion(1)chatonline(2)listentothemusic(3)watchmoviesandnews(4)playgamesonline(5)doshoppingonline(6)searchforinformation(7)lookatphotographsConclusionHowever,computershavetwosides.Ifwemakegooduseofit,itwillmakeourlivesmorecolorfulandconvenient.Butdon’tloseyourselfinplayingcomputers.Justremember:Keepfitandstudyhard.Homework:Previewthelanguagepointsinthepassage.