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1、第一单元一：In1980,TimSamaraswasworkingattheUniversityofDenverResearchInstitutewhenhefirstsawthecamera.Weighing1,600poundsandstandingsixfeethigh,theBeckman&Whitley192camerawashardtoMiss.Thecamerawasusedtotakepicturesofnucleartests,anditwaspartofSamaras’jobtolookafterit.Samara
2、slefttheresearchinstituteandhadotherjobs,butheneverforgotthatcamera.Twenty-fiveyearslater,hesawitwasforsale.Heboughtitforjust$600,thevalueofitsmetalparts.Now,heisusingthecameratostudylightning.WiththehelpofmoneyfromNationalGeographic,hechangedhowthecameraworks.Hereplace
3、dthefilmtechnologywithdigitalsensorsdesignedfordeepspaceexploration.Healsoaddednewsoftwarewrittenspeciallyforthecamera.Hehopesthecamerawillhelphimtakeaphotographofthemomentlightningstarts.Thisisverydifficultandhehasbeentryingtogetthatshotsince2006.Theburstoflightcomesfr
4、omclosetothegroundandmovesuptothesky.Itistravelingatathirdofthespeedoflightandthestartofthisflashtakesaslittleas200milliseconds.Thecameraisfastenoughtotakethepicture,buthemustalsoknowwheretopointitandalso“click”attherighttime.Somepeoplethinkhehasnochanceofgettingtheshot
5、hewants.ButSamarasisusedtopeopletellinghimthatwhathe’stryingcan’tbedone.Beforehestartedtostudylightning,hespentseveralyearschasingaftertornadoes.Peopledidn’tthinkitwaspossibletorecordwhatitlooksandfeelslikeinsideatornado,butSamarasmanaged.Hegotsomeofthemostaccuratereadi
6、ngseverofwindspeed,barometricpressure,temperature,andhumidity.Itispossiblethatheisrightabouthowtophotographthestartoflightning,too.“I’mstillinhotpursuitofthatimage,”hesaidin2012,adding,“AndIwon’tstopuntilthisisdone.”二1Whatkindofpeoplemakegoodnurses?A:Well,youhavetobeorg
7、anized.Forexample,I’minchargeofmypatients’medicine.Ihavetogivethemthecorrectmedicine,soIwriteeverythingdowninachart.Igetthemedicine.Then,Icheckonmychartthatit’sthecorrectone.Nobodygetsthewrongmedicinethatway.Q:Youarewellorganized!A:Thanks.Ithasabigeffectonmypatients’hea
8、lth,soit’simportanttome.Nursesalsohavetobefitbecausetheworkisveryphysical.Q:Whatkindofphysicalworkdoyoudo?A:Is
