北师大版（2019）必修第二册Unit4Information technology 词汇课件

Unit4Step1AskandanswerStep2LearnnewwordsLesson1&2likelyconceptchartfocusskipfistwaistnailgallerycyberspacecometrueartificialclimateglobalfloodvirtualrealityvirusaffectrapidlygrowthpessimiticoptimisticcrimehackerterroristattackchaoscrashentertainmentdisappearharmobviousdestructionscientificnetworkhangonbeuptofashionfancysuggestionrejectarrangementprojectgetintouchlikelyfocusonfocus......onfix...onpayattentionto

Step3Analyselikely、probable、posiblevirusaffectaffectioneffectinfectStep3AnalysenovelcoronaviruspneumoniaacomputervirusafluviruscrimecriminalterroristterrorterrifyterrorismStep3AnalyseoptimisticoptimisticallypessimisticStep3AnalysescientificfashionfashionableoutoffashioninfashionStep3AnalysescientificallysciencescientistfancydestructionconstructiondestroyconstructStep3Analyse+{n.v-ingarrangementarrangeStep3AnalyseStep4Findoutarightwordtomatchthefollowingdefinitions.

1.apersonwhoentersotherpeople'scomputerprogrammesinsecret________2.theuseofcomputerstomakesituationsfeelandlookreal________3.someonewhodoesterriblethingstoharmcountries,govermentsandpeople__________4.computersystemthatallowsmillionsofpeoplearoundtheworldtoshareinformation________5.aterriblesituationinwhicheverythinggoeswrong________hackervirtualrealityterroristtheInternetchaosStep5Fillintheblankswithproperwords.

1.________(obvious),wedon'twanttospendtoomuchmoneyontheproject.2.Thecompanypaidoutover$10millioninanout-of-court___________(settle).3.Thechiefengineertogetherwithhiscolleagueshasbeenlookingfornew__________(science)methodsoffarmingsincefiveyearsago.4.Theseplayswereapopularformof____________(entertain)inthe1920sand1930s.5.Theyprovideanenvironmentwhereyoucanpracticeunderthe________(guide)ofsomeonewho'sgoodatthelanguage.Obviouslysettlementscientificentertainmentguidance6.Blackpoolisthetoptourist_________inEngland.Anumberofvisitorsfromallovertheworldare________bythe_________scenerythere.(attract)7.The________materialsbecame__________totheenviromentafterbeingdealtwith.(harm)8.The________issaidtohavecommittedmany______beforebeingarrested.(crime)9.In_______,Ihave__________thatImuststopdaydreamingandbe________.（realise）10.Theman_________thatthemanagershouldaccepthis___________whichhethoughtwereofgreatvalue.(suggest)attractionattractedattractiveharmfulharmlesscriminalrealizedcrimesrealityrealisticsuggestedsuggestionsStep6Fillintheblankswithwhatwehavejustlearned.Theinternethasgreatly_________ourlives.Itislikelytobeoneofthemostusefulinventionsinhumanhistory.Whatcanwedoonthe__________?Wecanbooktickets,findoutholidayoffersandgetallsortsofinformationfromit.Wecangetin________withfriends,goshoppingaswellasworkathomeonit.It's___________thattheInternetplaysanimportantpartinourlifeandwork.Ifwe________travelinginaforeigncountry,wecanalsoturntoit.Virtualrealitycanmakeusfeelasifwewerereallyintheplacewewanttovisit.Ithinknoonecan_______itstemptation.Perhapsthetraditionalwaysofpostinglettersandshoppingwilldisappear.Step6Fillintheblankswithproperwords.Someare______________abouttheInternet'sfuture.Theyfearhackerscanattackthebanksandgovernmentswithcomputer__________andstealmoneyornationalsecrets.Theyevenfeartheonlineviolencewillharmteenagers.Theyonlyfocustheirattentiononitsnegativeaspects.Expertssuggestthatweshould_______measurestoprotectthenetwork.Others,however,areoptimisticabouttheInternet’sfuture.Nowadays,almosteveryaveragefamilyownsacomputer.Inaddition,theNetwillbecomepartofmodernlifeasitsavesustime,moneyandenergy.DavidBrown,knownasafamous________incomputer,says,“TheInternethastwosides.Thepointiswhatweuseitfor.”Step6Fillintheblankswithwhatwehavejustlearned.Theinternethasgreatly_________ourlives.Itislikelytobeoneofthemostusefulinventionsinhumanhistory.Whatcanwedoonthe__________?Wecanbooktickets,findoutholidayoffersandgetallsortsofinformationfromit.Wecangetin________withfriends,goshoppingaswellasworkathomeonit.It's___________thattheInternetplaysanimportantpartinourlifeandwork.Ifwe________travelinginaforeigncountry,wecanalsoturntoit.Virtualrealitycanmakeusfeelasifwewerereallyintheplacewewanttovisit.Ithinknoonecan_______itstemptation.Perhapsthetraditionalwaysofpostinglettersandshoppingwilldisappear.affectedInternettouchobviousfancyrejectStep6Fillintheblankswithproperwords.Someare______________abouttheInternet'sfuture.Theyfearhackerscanattackthebanksandgovernmentswithcomputer__________andstealmoneyornationalsecrets.Theyevenfeartheonlineviolencewillharmteenagers.Theyonlyfocustheirattentiononitsnegativeaspects.Expertssuggestthatweshould_______measurestoprotectthenetwork.Others,however,areoptimisticabouttheInternet’sfuture.Nowadays,almosteveryaverage