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【3DcomeshomeHaveyouhadthisexperience?Youarewatchingamovie.Amanisshootingonthescreen.Thepictureissorealthatyouthinkheisshootingatyou.Oracarisspeedingonthescreenandatonepointyouareafraiditw】
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更新时间:2022-05-23
问题描述:

3Dcomeshome

Haveyouhadthisexperience?Youarewatchingamovie.Amanisshootingonthescreen.Thepictureissorealthatyouthinkheisshootingatyou.Oracarisspeedingonthescreenandatonepointyouareafraiditwillhityou.

Three-dimensional(3D)filmsusespecialtechnologytomakepicturesseemmorerealandexcitingthantwo-dimensionalones.TwopopularmoviesinthecinemathisyearUPandIceAge;DawnoftheDinosaursbothuse3Dtechnology.

Sofarwecanonlysee3Dfilmsinthecinemawithaspecialscreenandprojector.Butsoonwewillbeabletowatchtheminourlivingrooms.LastmonththeJapanesecompanySonytoldreportersthatitplanstobring3Dtelevisionstohomesin2010.Thecompanyisalsohopingtomakeotherproductswith3DlikelaptopsandPS3.

“ The3Dtrainisonthetrackandwearereadytodriveithome”saidSonyPresidentSirHowardStringer.

How3Dtechnologyworks

ThreedimensionalmoviesandTVprogramsarefuntowatchbutdoyouknowhowtheyaremade?Itismucheasiertounderstandifwedoanexperiment.

Holdoneofyourfingersupatarmslengthandcloseoneeye.Thentryclosingtheothereye.Asyouswitchbetweenopeneyesyoushouldseeyourfinger“jumping”leftandrightagainstthebackground.

Thishappensbecauseourtwoeyesareabout4cmawayfromeachother.Theseparationcauseseacheyetoseetheworldfromadifferentangle.Thebrainputsthesetwoviewstogether.Whatyouseebecomesthree-dimensional.

Threedimensionalmoviesaremadeusingtwovideocamerasatthesametimewhichcreatestwodifferentimages.Whenthemovieplaysinacinematwoprojectorsputthetwoimagesonthescreen.Withapairof3Dglassesthetwoimagesareseparatedandeachimageonlyentersoneeye.Yourbrainputsthetwopicturesbacktogetherandthepicturesonthescreenbecomethree-dimensional.

72.Whatdoesthesentence“The3Dtrainisonthetrackandwearereadytodriveithome”mean? .

A.They’vegotatraintotake3Dfilmsbackhome

B.Theyarereadytobring3Dtechnologytohomes

C.Theyhavenomoreworktodoon3Dtechnology

D.Theyarenotsureaboutthefutureof3Dfilms

73.Accordingtothetext3Dfilms .

汪文虎回答:
  【小题1】B   【小题2】C   【小题3】A   【小题4】C
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