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Unit4EarthquakeWarming-up&Pre-readingDoyouknowanynaturaldisasters(自然灾害)?Canyounamesomeofthem?Leadinfloodtyphoon/hurricanedroughtfirevolcaniceruptionsnowdisasterearthquakeEarthquakeinWenchuanonMay12th,2008.Thewholecitylayinruins,69,225peopledied,374,640wereinjuredand17939weremissing.Doyouknowotherseriousearthquakesthathappenedinrecentyears?InHaiti(海地),onJanuary12,2010InChile(智利),onFebruary27,2010InChina,onApril,14,2010Earthquakesshookthewholeworldin2010At7:49April14,2010,anearthquakehit(袭击)Yushucounty,Qinghaiprovince.2220peopleweredeadand70weremissing.AnearthquakehitJapanonMarch11,2011.AnearthquakehitYa’anonApril20,2013.Earthquakeisnotfarfromourlife.Italarms(警告)usitisthehightimetolearnsomeknowledgeaboutearthquake.Whydoearthquakeshappen?Earthquakeshappenwhentwomovingplatesjumpandpushagainsteachother.Asaresult：TheearthisEarthquakeshappenwhentwomovingplatesjumpandpushagainsteachother.AsaresultDiscussionWhatmighthappenwhentheearthisshaking?TangshanSanFranciscoLookatthephotosofTangshanandSanFranciscoandtrytodescribewhathappensinthe2citieswhenthereisanearthquake.Buildingsfalldown.Thecrackscutacross(横断、截断)theroads./Roadsgethugecracks.Bridgesarebroken.Thesupplyofelectricityandwateriscutoff.Therailwaytracksareuseless.Anumberofpeoplearehomeless.Thecityliesinruins.Tangshan,HebeiSanFrancisco,USAApril18th,1906July28th,1976Earthquakeisaverydestructive(破坏性的;毁灭性的;)andterribledisaster.So,it’sveryimportantforustolearnmoreaboutearthquakes!Whatstrangethingsdoyouthinkmayhappenbeforeanearthquake?wellmicefishchickenscowspigsdogsThereisbrightlightinthesky.Theanimalsweretoonervoustosleeporeat,suchasdogs,cows,pigs,horses,andchickens.Micerunoutofthefields.Fishjumpoutofbowlsandponds.ThesignsbeforeWenchuanEarthquake.Therearecracksinthewells.Thewaterinthewellrisesandfalls.Asmellygascomesoutofthecracks.Waterpipesmaycrackorburst.Discussion:Whatshallwedoifanearthquakehappens?IfinclassroomIfoutdoorsIfinclassroom:1.Don’tbenervousandkeepcalm.2.Whenatthebottomofthebuilding,youshouldleavetheclassroomingoodorder.Ifyouareatthetopofthebuilding,don’ttrytorunoutoftheclassroomorjumpoutofthewindow.3.Hideunderyourdeskandprotectyourheadbyputtingyourhandsonyourhead.4.Waitforagoodtimeandleavetheclassroomrightawayaftertheshakedecrease(减少，减小).Ifoutdoors:Stayawayfrombuildings,trees,signs,andpowerlines.Crouchdown(蹲下)andcoverthehead.Getaway!MyheartwillgoonDisasterswillgoon!Wecan’tavoidthem,however,wecanreducethem!Ifdisastersdohappen,keepcalmandfacethem.Getreadyforthemfromnowon!Imagineyourhomebeginstoshakeandyoumustleaveitrightaway.Youhavetimetotakeonlyonething.Whatwillyoutake?Why?Iwanttotake…money,books,food,water,clothes…because…watermoneyidentitycardfoodbooksclothescomputermappicturesoffamilymobilephoneWhatwillyoutake?Why?Thanksforyourlistening!