BOOK1unit4warmingup,speakingandlistening课件
日期：2010-02-05 02:07
Whatisthebiggestsoundyouhaveheardinyoulife?BEFORETHEEARTHQUAKTANGSHANSANFRANCISCOAFTERTHEEARTHQUAKETANGSHANSANFRANCISCOWhatdoescausetheearthquake?Howearthquakeshappen:?Anearthquakehappenswhentwoplatesrubtogether?TheplatestravelindifferentdirectionsandatdifferentspeedsIfoneplateisslowlyforcedunderneaththeother，?pressurebuildsupuntiltheplatesripapart?ThisprocesscausesthegroundtomoveItisanearthquakePredictionsofearthquakesListentothetapeandanswerthequestionsWhatnaturalsignsofacomingdisasterwerethere?Canyouthinkofsomereasonswhythesesignsweren’tnotice?Howmanypeoplewerekilledorinjuredinthisdisaster?Whateventsprobablymadethedisasterworse?Howwerethesurvivorshelped?JointhecorrectpartsofthesentencesThechickensdidn’teatbecauseBeforetheearthquakethepeopledidn’tworrybecauseSuchagreatnumberofpeoplediedbecauseWaterwasneededbecauseThepeopledidn’tlosehopebecausethearmycametohelpthemthequakehappenedwhiletheyweresleepingtheywerenervousdamsandwallswereuselesstheydid，
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