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1、Unit4Earthquake悦读教材试题<-)惨痛的记忆:中国历史上的大地震1556:Shaanxi,China明代陕西大地震Thedeadliestquakeofal1timemightbeoneoftheleasttalkedabout,consideringitoccurrednearly450yearsago.The1556quakeclaimedthelivesofsome830,000people.Whythemassivedeathtoll?Blamethequake"sstrength(8.0ontheRichterscale,ormorethM30timesm
2、orepowerfulthantherecentquakeinHaiti)aswellastimingandlocation.Thepre-modernstructureswereutterlyunabletowithstandaquakeofsuchforce,andmassivelandslidescontributedtothecasualties.历史上最可怕的地震也许是最少被谈及的一场地震,因为它发生在450年之前。这场地震导致83万人死亡。为何死亡人数如此巨大?原因在于震级(里氏&0级,比刚发生的海地地震强30倍),还有时间和地点。古代的房屋建筑完全不能抵挡这样的大地
3、震,大面积的山体滑坡也导致不少人遇难。1976:Tangshan,China唐山大地震Chinahasthemisfortunetohavehadtheseconddeadliestearthquakeonrecord,the1976GreatTangshanEarthquake,whichstruckinthecountry'snortheast・ltdbemoreaccuratetocallthisabinaryquake:anaftershockthatstruck16hoursaftertheinitialtemblormeasuredanidentical7.8onth
4、eRichterscaleandwasequallydestructive.继陕西地震之后,中国又发生了第二大强度的地震,1976年唐山大地震,确切来说是两次大地震:地震后16小时,里氏7.8级的余震又造成了巨大损失。1920:Haiyuan,China宁夏海原地震TheDec・16,1920Haiyuanearthquake—whichregistereda.7・8magnitudeontheRichterscale一causedriverstochangccourseandsentlandslidespouringdownmountains.Destructionstretc
5、hedacrosssevenChineseprovinces.Sujiahe,atownininXijiCounty,wascompletelyburiedunderalandslide.Anestimated200,000peoplediedinthedisaster,whichwasfeltasfarawayasNorway.1920年十月十六日宇夏海原发生的里氏7.8级大地震使得河流改道,并导致山体滑坡。七省同时受灾。西吉县苏家河镇在一次滑坡屮整体被埋。二十万人死于此次地震,并且震感远至挪威。2008:SichuanProvince,China四川省5.12大地震The7.
6、9-magnitudedisasterstruckthemountainousSichuanProvinceinwesternChina,destroyingmi11ionsofbuildingsandcausinganestimated$86billionworthofdamage.Nearly10,000childrendiedinschools—trappedunderrubblewhenthebuildingscollapsed・四川发生的这场7.9级大地震中有上百万房屋倒塌,造成约860亿美元的损失。儿乎有一万个孩子死在倒塌的教学楼屮。(二)当地震发生时的你该如何应对?
7、•Whenwalkingoutside行走在户外时Takecautionagainstfallingobjects,suchassignsandbrokenwindows.Toolsandconstructionmaterialscanfalldownataconstructionsite.ProtectyourheadwithyourbagorcoatandkeepataSlonewalIsanddistaneefromtai1bui1dings.pillarscanalsof