Unit4Unforgettableexperiences课件
日期：2010-06-17 06:32
apowerfulearthquakeregisteringM82occurredinnortheasternChinaabout95mileseastofBeijingnearTangShan，at3:42amlocaltime，Unit4 UnforgettableexperiencesWarmingupLookatthefollowingpicturesDoyouknowwhotheyare?Whatmadethemunforgettable?Video---SeismographDoyouknowthem?…isthemanwho……istheparkwhich/thatVideo--EarthquakeBackgroundEarthquakesareconstantlyreshapingthesurfaceoftheearthWhethergoodorbad，andtheywillcontinuetofascinateusformanymoreyearstocomeButslowlywearelearningmoreVideo—EarthquakeinJapanVideo---SanFranciscoEarthquakeVideo---KodeEarthquakeHaveyouevenheardTangShanearthquake?LetmelearnmoreaboutTangShanearthquake:OnJuly28，earthquakesareanaturalconsequenceoflivingonthisplanetTheyhavebeenamysteryforpeopleforthousandsofyears，1976，anindustrialcityofabout1millionpeopleManyeyewitnessessaidtheysawabrightflashedacrosstheskywhichwasfollowedbyadeafeningroarjustbeforetheshakingbeganVigorousshakinglastedforseveral10sofsecondsArobustaftershocksequencefollowedandculminatedabout18hourslate，
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