地震前的迹象PPT演讲

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1、Earthquakewhatdoesitmeans1ThesignsbeforeanearthquakeThereismanyanimalscanforecasttheearthquakeclearlythanpeople,sohowwilltheydobeforetheearthquake?DiscussingWhatwillyoudoifyoumeettheearthquake?Howdoyouthinkoftheearthquake?Whatelsedoyouknowaboutearthquake?Whatdoyouthinkwi

2、llhappenbeforeanearthquake?Doyouknow?震前动物有预兆，群测群防很重要。牛羊骡马不进厩，猪不吃食狗乱咬。鸭不下水岸上闹，鸡飞上树高声叫。冰天雪地蛇出洞，大鼠叼着小鼠跑。兔子竖耳蹦又撞，鱼跃水面惶惶跳。蜜蜂群迁闹轰轰，鸽子惊飞不回巢。家家户户都观察，发现异常快报告。Doyouknowthis?地震仪是汉代科学家张衡的又一传世杰作，当某个地方发生地震时，樽体随之运动，触动机关，使发生地震方向的龙头张开嘴，吐出铜球，落到铜蟾蜍嘴里，发出很大的声响，所以人们就知道是哪里发生地震了。Whatcanwel

3、earnfromtheearthquake?Wedon’tlikeearthquake,becauseitcausetoomuchtragic(悲剧)andtears.Ifwedon’twantearthquake,weshouldprotectourearth,plantmoretreesanddon’tover-exploitation(过度开采)oil.wejusthaveoneworld