新思路第三册读写译unit7&8

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1、DepartmentofCollegeEnglishNewVisionCollegeEnglishBookThreeUnit7DepartmentofCollegeEnglishProceduresPassageA:TsunamiDepartmentofCollegeEnglishUnit7NatureandDisasterPassageATsunamiDepartmentofCollegeEnglishProceduresofPassageA1.BackgroundInformation2.NewWords,PhrasesandExpressions3.Warmupa

2、ctivities4.DetailedStudyoftheText5.ExercisesDepartmentofCollegeEnglishBackgroundInformation1.TsunamiWarningSystem（太平洋海啸预警系统）(TWS)isasystemtodetecttsunamisandissuewarningstopreventlossoflifeandproperty.Itconsistsoftwoequallyimportantcomponents:anetworkofsensorstodetecttsunamisandacommunic

3、ationsinfrastructuretoissuetimelyalarmstopermitevacuationofcoastalareas.DepartmentofCollegeEnglishTheTsunamiWarningSystem(TWS)inthePacific,comprisedof26participatinginternationalMemberStates,hasthefunctionsofmonitoringseismologicalandtidalstationsthroughoutthePacificBasintoevaluatepotent

4、iallytsunamigenicearthquakesanddisseminatingtsunamiwarninginformation.ThePacificTsunamiWarningCenter(PTWC)（太平洋海啸预警中心）istheoperationalcenterofthePacificTWS.LocatednearHonolulu（檀香山）,Hawaii,PTWCprovidestsunamiwarninginformationtonationalauthoritiesinthePacificBasin.BackgroundInformationDepa

5、rtmentofCollegeEnglishBackgroundInformation2.TheAtomicBombingofHiroshima（广岛原子弹爆炸）IntheearlymorninghoursofAugust6,1945,aB-29bombernamedEnolaGaytookofffromtheislandofTinian（提尼安岛）andheadednorthbynorthwesttowardJapan.DepartmentofCollegeEnglishBackgroundInformationThebomber’sprimarytargetwast

6、hecityofHiroshima,locatedonthedeltasofsouthwesternHonshuIsland（本州岛）facingtheInlandSea.Hiroshimahadacivilianpopulationofalmost300,000andwasanimportantmilitarycenter,containingabout43,000soldiers.Theyieldoftheexplosionwaslaterestimatedat15kilotons(theequivalentof15,000tonsofTNT[一种烈性炸药]).De

7、partmentofCollegeEnglishBackgroundInformation3.ThePacificRingofFire（环太平洋火山带）ThePacificRingofFire(orsometimesjusttheRingofFire)isanareawherelargenumbersofearthquakesandvolcaniceruptionsoccurinthebasinofthePacificOcean.DepartmentofCollegeEnglishBackgroundInformationIna40,00