人教版教材英语必修二unit3-computers-课件

I.Warmingup&pre-reading(1)Howmuchdoyouknowaboutcomputers?(2)Whatisit?II.Reading(Task–basedlearning)III.PostreadingWhatareadvantagesanddisadvantagesofcomputers?Howcanwemakeuseofit?learningaimsDoyouknowthem?keyboardmouseUSBflashdiscPClaptopWhatdoyouusecomputersfor?ComputerandInternettypeyourletterPlaycomputergamescommunicatewithmyfriends.searchusefulinformationlistentomusicwatchmovies……laptopReading1.Inthepassage,“I”refersto_________.2.thetopicsentenceofeachparagraph.ParagraphI:paragraphII:paragraphIII:Sothewholepassageismainlyabout:_________________________________.I.Scanning(略读)acomputerOvertimeIhavebeenchangedquitealot.Thesechangesonlybecamepossibleasmymemoryimproved.Sincethe1970smanynewapplicationshavebeenfoundforme.Fast-readingthedevelopmentofcomputers.3Detailedreading(细读)Readthepassagemorecarefullyandfindmoreinformationaboutcomputers.Thenfillinthetwoformsbelow.164219361940s1970snowThecomputer__________________machine．1822AlanTuring_____________________howcomputerscouldbemadetowork．Computershad________________aroom.1960sFirstas_____andthen________computerswereusedinofficesandhomes.Computersconnectpeopleallovertheworldtogether.Afamilyofcomputerswasconnectedbyanetwork.The_________machinewasmadebyCharlesBabbage.beganasacalculatinganalyticalwroteabooktodescribegrownaslargeasaPCasalaptopFromtheaboveform,wecanknowthatthetextiswritteninanorderof___________timeearlydays(thefirstparagraph)poor_____NameFunction(功能)acaculatingmachinesimplifydifficultsumsa___1____machinethinklogicallya2.______machinesolvedifficult3._________networktimes(the2ndand3rdpara)largemymemorytubes_____4._________Smallchipssincethe1970s5___________havebeenfoundinmanyfields(领域).6.___________;finance;7.____;robots;mobilephones;8.______________;spacerocketsnarrow_____analyticaluniversalmathematicalproblemstransistorscommunicationtradeapplicationsmedicaloperationsstrongsmallwideFindasentencetoreplacethefollowingone(inthe1stparagraph)•PeoplethoughtitwasarevolutionintechnologyandafterthatIhadtheintelligencethatpeoplegavemeatthattime.•_________________________________________________________________________________________________________________________Atthattimeitwasconsideredatechnologicalrevolutionandthestartofmy“artificialintelligence”.2.MyrealfatherwasAlanTuring,whoin1936wroteabooktodescribehowcomputerscouldbemadeofwork,andbuiltauniversalmachine”tosolveanymathematicalproblem.AttributiveClause(定语从句)“And”连接built和?在1936年我真正的父亲艾伦。图灵写了一本书，讲述了怎样使我成为一台“通用机器”来解决任何数学难题。Whatareadvantagesanddisadvantagesofcomputers?Howcanwemakeuseofit?Shouldhighschoolstudentssurftheinternet(上网)?ComputerandInternettypeyourletterPlaycomputergamescommunicatewithmyfriends.searchusefulinformationlistentomusicwatchmovies……advantageswecancommunicatewithfriendslistentothemusicseefilms&watchnewsplaygamesdoshoppingsavealotoftimedoalotofusefulthingsDisadvantagesSomepeopleespeciallytheteenagersabandon(沉迷于)themselvestothecomputergamesandchattingontheInternet.Asaresult,theyhavelittletimetostudy.Thereisunhealthyinformaiononthenet.Youmayloseyourprivateinformation.Somepeopleusethecomputerwrongly.Ibeganasa_______machinein1642inFrance.In1822Iwasbuiltasan_______machine.Thenin1936AlanTuringwroteabookandbuilta_______machine.Astime______,Iwasmadesmallerbutmymemorygot______and_____.Inthe1960stheygavemeafamilyconnectedbya______.NowpeoplecallittheInternet.Iwasusedin______and______sincethe1970s.SincemybirthIhavetrulybeenbuilttoservethehumanrace.calculatingAnalyticaluniversalwentbylargerlargernetworkofficeshomesTestinclassSummaryThankyou!