“OnethingIenjoyaboutmyjobisthatIcanworkonsomethingthatisactuallyactive”saysGameMcGimseyanAmericanvolcanologist(火山学家).PartofhisjobincludeskeepinganeyeonAlaska’smanyactivevolcanoesandgivingpeopleaheads-upwhenavolcanomighterupt(喷发).
Likemostjobsinthesciencevolcanologyrequiresalotofeducation.McGimseyreceivedanundergraduatedegreeingeologyattheUniversityofNorthCarolinathenlandedaninternship（实习期）withageologistattheUSGS(美国地质勘探局)whoseworkfieldwasaboutvolcanoes.AfterearningagraduatedegreeattheUniversityofColoradoMcGimseyacceptedajobwiththeUSGSandhasbeenwiththeAlaskaVolcanoObservatoryfor25years.
Volcanoescaninfluencetheworldinwayswemightnotthinkabout.ForexampleonDec.151989a747jetliner(alargeairplane)flewthroughathickashcloudproducedbyMountRedoubtanAlaskanvolcanothathadn’teruptedin25years.Theashcausedallfourenginestodieandtheplane’selectronicswentdead.
“TheplanewaswithinseveralthousandfeetofflyingintothemountainsbelowwhenthepilotsgotacoupleofenginesrestartedandlandedsafelyinAnchorage”McGimseysays.Itcostnearly$80milliontorepairthedamagetotheplane.
Suchsituationsshowjusthowdangerousvolcanoescanbe.Howevervolcanologistsknowtherisksandarepreparedtoprotectthemselves.
McGimseyadmits“Thereiscertainlyahigherdangerlevelinvolcanologythansomeotherjobs.Weunderstandhowseriousthedangerisandwedon’tliketakingunnecessarychances.Weavoidgettingtooclosetoaneruptingvolcanobecauseitisnotworthinjuryordeathsimplytogetarockoraphotograph.”
4.BeforeworkingfortheUSGSMcGimsey_________.
A.hadbeenapilotfor25years B.knewnothingabouttheorganization
C.hadtaughtattheUniversityofNorthColorado
D.hadstudiedattheUniversityofColorado
5.OnDec.151989a747jetliner__________.
A.hadallitsenginesrestarted B.flewintoavolcanoinEurope
C.survivedanairaccidentluckily D.disappearedinahugeashcloud
6.WhatMcGimseysaysinthelastparagraphshowshis____.
A.pride B.caref
