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1、7A版优质实用文档INTERNATIONALENGLISHLANGUAGETESTINGSYSTEMACADEMICREADINGTIMEALLOWED:1HourNUMBEROFQUESTIONS:38InstructionsALLANSWERSMUSTBEWRITTENONTHEANSWERSHEETThetestisdividedasfollows:-ReadingPassage1Question1-11-ReadingPassage2Question12-25-ReadingPassage3Question26-38
2、Startatthebeginningofthetestandworkthroughit.Youshouldanswerallthequestions.IfyoucannotdoaparricularquestionleaveitandgoontotheneGt.Youcanreturntoitlater.READINGPASSAGE1Youshouldspendabout20minutesonQuestions1-11whicharebasedonReadingPassage1onpages2and3.TheSpectac
3、ularEruption357A版优质实用文档7A版优质实用文档ofMountSt.HelensATheeruptioninMay1980ofMountSt.Helens,WashingtonState,astoundedtheworldwithitsviolence.AgiganticeGplosiontoremuchofthevolcano'ssummittofragments;theenergyreleasedwasequaltothatof500ofthenuclearbombsthatdestroyedHirosh
4、imain1945.BTheeventoccurredalongtheboundaryoftwoofthemovingplatesthatmakeuptheEarth'scrust.TheymeetatthejunctionoftheNorthAmericancontinentandthePacificOcean.OneedgeofthecontinentalNorthAmericanplateover-ridestheoceanicJuandeFucamicro-plate,producingthevolcanicCasc
5、aderangethatincludesMountsBaker,RainierandHood,andLassenPeakaswellasMountSt.Helens.CUntilMountSt.Helensbegantostir,onlyMountBakerandLassenPeakhadshownsignsoflifeduringthe20thcentury.AccordingtogeologicalevidencefoundbytheUnitedStatesGeologicalSurvey,therehadbeentwo
6、majoreruptionsofMountSt.Helensintherecent(geologicallyspeaking)past:around1900B.C.,andaboutA.D.1500.SincethearrivalofEuropeansintheregion,ithadeGperiencedasingleperiodofspasmodicactivity,between1831and1857.Then,formorethanacentury,MountSt.Helenslaydormant.D357A版优质实
7、用文档7A版优质实用文档By1979,theGeologicalSurvey,alertedbysignsofrenewedactivity,hadbeenmonitoringthevolcanofor18months.Itwarnedthelocalpopulationagainstbeingdeceivedbythemountain'soutwardcalm,andforecastthataneruptionwouldtakeplacebeforetheendofthecentury.Theinhabitantsofth
8、eareadidnothavetowaitthatlong.OnMarch27,1980,afewcloudsofsmokeformedabovethesummit,andslighttremorswerefelt.Onthe28th,largeranddarkerclouds,.cons
