高中英语 Unit4 Earthquakes课件 新人教版必修1.ppt

成才之路英语,路漫漫其修远兮吾将上下而求索,人教版必修1,Earthquakes,Unit4,Alotofearthquakeshappenintheworldeveryyear.Whydoearthquakeshappen?Scientiststellustheoutsideoftheearthismadeofanumberofdifferentplates(板块).Theplatesmoveveryslowly.Sometimestheystopanddontmoveforalongtime.Whensomeoftheearthsplatesmovesuddenly,anearthquakehappens.Manyearthquakeshappenunderthesea.Sometimestheyhappennearmountains.Infact,earthquakesmayhappenanywhereontheearth.Duringanearthquake,theshakingsmakerocksrisesuddenlyandevenbreakopen.Housesfall.Peoplearekilledorhurt.Sometimeswholevillagesorcitiesaredestroyed.,Canwedosomethingtokeepourselvessafefromearthquakes?Scientistshavestudiedearthquakesandmademapsthatshow“earthquakebelts”.Intheareasinthesebelts,itspossibleforearthquakestohappen.Intheseareaswecanmakehousesstrongenoughtostandagainstearthquakes.Inthefuture,scientistswillbeabletopredict(预言)exactlywhenandwhereanearthquakewillhappen.Theycantelluswhattodoandhowtodoitaswell.,判断正误(TrueorFalse)1Fewearthquakeshappenintheworldeveryyear.2Theoutsideoftheearthismadeofanumberofdifferentplates.3Wecandonothingtokeepourselvessafefromearthquakes.4Amapshowingtheearthquakebeltstellspeoplewhatkindofhousescanstandinanearthquake.5Inthefuture,scientistscanpredictexactlywhenandwhereanearthquakewillhappen.,文章大意：本文是一篇说明文，主要介绍地震形成的原因以及造成的危害，并且在将来科学家们能够精确地预言地震在何时何地发生，告诫人们做什么，如何做。1F细节理解题，该题的题干中有一关键词“few”意为“没有一些”，通过文章第一句话“Alotofearthquakeshappenintheworldeveryyear.”就可以看出本题是错误的。2T细节理解题。由文章的第一自然段“Scientiststellustheoutsideoftheearthismadeofanumberofdifferentplates(板块)”可以看出，这句话是正确的。,3F细节理解题。由文章第四自然段，最后一句Intheseareaswecanmakehousesstrongenoughtostandagainstearthquakes.可以看出，我们能够做一些事情降低地震的破坏程度。故此题错误。4F细节理解题。由文章第四自然段可知，科学家画出地震带的目的是将地震带上的房子建地足够牢固可以降低地震的破坏程度，而不是哪种房子可以在地震中不倒。所以这句话是错误的。5T细节理解题，由文章最后一段话“Inthefu