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1、Unit6(N.H.C.E.3)IncludedinThisUnitAre:SectionAHowtoPrepareforEarthquakesSectionBChangesintheBalanceofNatureREADINGANDWRITINGIntroductorywordsThethreeselectionsinthisunitdealwiththewonderfulandmysteriousworldofnature.Thefirstarticleconsistsofthreeparts:thepreparationfor,thepropercon
2、structionofbuildingstowithstand,andhumanemergencyplanningforearthquakes.Thesecondarticletellsofthefragilebalanceofnatureandhowhumansneedtoprotectandsavetheresources.Inspiteoftheshorttimespantheyhaveoccupiedtheplanet,humansareusingupthenaturalresourcesanddisturbingthebalanceofnature
3、.Weneedsolutionstoalltheseproblems.I.Objectives1.Skills1)reading:skimming2)writing:ageneralviewpointthatissupportedbyspecificdetail3)translating:2.vocabularydevelopment---wordpower1)wordsandexpressionsdetect,wax,withstand,enclose,fasten,occurrence,attachsthtosth,putout,turnoff,chec
4、kin,makeadifference,etc.2)wordbuilding:a.compoundsb.en-+adj.3.Grammar1)“sothat”tointroduceaclauseofpurpose.2)“which”tobereferredtothepreviousmainclause.II．TeachingProceduresStep1:BackgroundInformationSomedisasterssuchasearthquakesandvolcaniceruptionsresultfromthemovementofplatesalo
5、ngtheweaknessesintheEarth’scrust.TheGreatHanshinEarthquakeDisasterAt5:46:51AM,onJanuary17,1995,amagnitude7.2earthquakeoccurredaroundKobe（神户）CityinJapan.About170,000housesweredestroyedorseverelydamagedinHyogoPrefectureandOsaka(大阪)Prefecture.OnFebruary7,1995,5,273personswerereportedt
6、ohavebeenkilledbytheearthquake.Mostvictimswerecrushedtodeathbythecollapseoftheirhouses,andburnedtodeathbythefiresthatfollowedtheearthquake.Thenumberofrefugees21isreportedtobeinexcessof300,000.EarthquakeOneofthemostfrighteninganddestructivephenomenaofnatureisasevereearthquakeanditst
7、erribleaftereffects.AnearthquakeisasuddenmovementoftheEarth,causedbytheabruptreleaseofstrainthathasaccumulatedoveralongtime.Forhundredsofmillionsofyears,theforcesofplatetectonics（板块运动动力）haveshapedtheEarthasthehugeplatesthatformtheEarth'ssurfaceslowlymoveover,under,andpasteachother.
8、Sometimesthemovementisgrad
