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UnitFour:EarthquakeWhatnaturaldisastersdoyouthinkmaycausepeoplegreatdamage?Imaginetherehasbeenabigearthquake,whatwillhappentothethingsaroundus?Sooneshouldnottrustsituationsthatseempeacefulsincebadthingsmayhappen.2.Whatdoyouthinkmayhappenbeforeanearthquake?----Thereisoftenagreatsound.----Animalstoonervoustoeat----Therearebrightlightsinthesky.----Asmellygasmaycomeoutofthewell.----Waterpipesmaycrackorburst.Whatcanwedotokeepourselvessafefromanearthquake?Naturaldisastersoccurthroughouttheworld,andChinahasaparticularproblemwithearthquakes.Tangshanearthquakein1976isacaseinpoint.Soitisespeciallyimportanttotakestepstoreducethedamagecausedbyquakes.Homework:Talkaboutabigearthquakethathappenedintheworldwithyourpartner.Listoutthemeasuresthatpeoplecantakewhenanearthquakehappens.1.movequicklyfromsidetosideorupanddown2.adeepplacetostorewatertodrink3.structurebuilttogiveprotectionfromrainwindorattack4.saveorbringawayfromdanger5.causetobreakviolentlyopenorapart6.thepartofabuildingleftaftertheresthasbeendamaged7.damagesobadlythatitnolongerexitsorworks8.eventthatcausesgreatharmordamage9.channelcutthroughlandorboatsorshipstotravelalong,orcarrywaterforirrigation10.suddenviolentmovementoftheearth’ssurface11.gasthathotwatergivesout12.violentbloworshake;worriedorfrightened13.newordifferent;newlymade,produced14.sourceofprideandpleasure15.aspecialwallthatkeepswaterbehindit16.blackmaterialfoundundergroundusedforburningtosupplyheat17.bakedordriedclayusedforbuilding18.havingabadsmell