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1、Module6OldandNew课时作业（十八）建议时间/40分钟Ⅰ.阅读理解A词数:333 话题:VR(虚拟现实) 文体:议论文You‘llprobablynevergotoMarsorsingonthestagewithTheRollingStones.Butifvirtualreality(VR)everlivesuptoitspromise,youmightbeabletodoallthesethings—andmanymore—withoutevenleavingyourhome.Unlikerealreality,virtualrealitymean
2、ssimulating(模仿)bitsofourworld.Apartfromgamesandentertainment,it‘slongbeenusedfortrainingairlinepilotsandsurgeonsandforhelpingscientiststofigureoutcomplexproblemssuchasthestructureofproteinmolecules(分子).Thenhowdoesitwork?Closeyoureyesandthinkofvirtualrealityandyouprobablypicturesometh
3、inglikethis:amanwearingawrap-aroundheadsetanddatagloveswiredintoapowerfulworkstationorsupercomputer.WhatdistinguishesVRfromanordinarycomputerexperienceisthenatureoftheinputandoutput.Whereanordinarycomputerusesthingslikeakeyboard,mouse,orspeechrecognitionforinput,VRusessensorsthatdete
4、cthowyourbodyismoving.AndwhereaPCdisplaysoutputonascreen,VRusestwoscreens(oneforeacheye),surround-soundspeakers,andmaybesomeformsoftouchandbodyfeedbackaswell.VRhasbeenroutinelyusedbyscientists,doctors,dentists,engineers,architects,archaeologists,andthemilitaryforaboutthelast30years.D
5、ifficultanddangerousjobsarehardtotrainfor.Howcanyousafelypractisetakingatriptospace,makingaparachutejump,orcarryingoutbrainsurgery?Allthesethingsareobviouscandidatesforvirtualrealityapplications.Likeanytechnology,virtualrealityhasbothgoodandbadpoints.Criticsalwaysraisetheriskthatpeop
6、lemaybeaddictedtoalternativerealitiestothepointofignoringtheirreal-worldlives—butthatcriticismhasbeenleveledateverythingfromradioandTVtocomputergamesandtheInternet.Likemanytechnologies,VRtakeslittleornothingawayfromtherealworld:youdon‘thavetouseitifyoudon‘twantto.1.Whatequipmentdowep
7、robablyneedforvirtualreality?A.Akeyboard,aheadsetandasupercomputer.B.Aheadset,dataglovesandaspeechrecognition.C.Aheadset,dataglovesandasupercomputer.D.Akeyboard,amouseandaspeechrecognition.2.WhatisParagraph3mainlyabout?A.Theprinciplesofvirtualreality.B.Theapplicationsofvirtualreality
8、.C.Thehistor
