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《dear li jun，last night i saw a tv documentary about the 1976 tangshan阅读理解答案》由会员上传分享，免费在线阅读，更多相关内容在应用文档-天天文库。
1、DearLiJun，LastnightIsawaTVdocumentaryaboutthe1976Tangshan阅读理解答案 DearLiJun， LastnightIsawaTVdocumentaryaboutthe1976TangshanearthquakeinChina.Inoticedonethingthatiscommonwithmostnaturaldisasters.Thekillerdisasterscomeeitherearlyinthemorningorlateatnight,whenpeopleareei
2、therrestingorpreparingtorestand,unfortunately,whenpeopleareleastattentivetowarningsigns. TheTangshandisasterstruckearlyinthemorningwhenthepeoplewerestillsleeping. Manypeoplediedintheirsleep.Minersweretrappeddeepbelowtheearth.Somedied.Survivorswaitedinthedark.Theyhope
3、dthatrescuerswouldcomeandpullthemout.Itisahorriblethingtobeinasituationwhereyoucandonothingtosaveyourself. Itseemsthat,MatherNaturehasalwaysattackedusasifshewereafraidthatwewouldfightback.Otherwisewhywouldshecomeonlyasathief?Ihaveastorytotellyou,ThisonehappenedinAugus
4、t1986inthevillagesnearLakeNyosinCameroonsnorthwestprovince.Largeamountsofcarbondioxide(CO2)gashadbeencollectingatthebottomofthelake.Itwasclearthatnobodyknewaboutthegasorabouthowdangerousitwas.Suddenly,beforedawnonAugust26,1986,alargequantityofgaswasreleased(gaveoff)fro
5、mthelake.CO2isheavierthanair,soitspreadoutoverthenearbyvillages.TheblanketofCO2floatedfor25kilometres.Manypeoplediedintheirsleepfromlackofoxygen(O2).Beforesunrise,morethan1,700peoplehadlosttheirlives.Andthousandsofanimalswerealsokilledbythegas.Atfirstscientistsbelieved
6、thatthegaswascausedbyanearthquakeoravolcano.However,furtherstudiesprovedthattherehadbeennovolcanicactivity.Nobodyisverycertainhowsuchalargeamountofgaswasreleasedfromthelake.ScientistsfromtheUSA,theEU,JapanandCameroonhavebeenstudyingthelakeforthepasttwentyyears.Yettheys
7、tillhavenotfoundananswer. Well,Jun,letmeleaveMotherNatureandhertimid(胆小的)wayofattackingus.Ineedto runoutforsomenoodlesatanearbyChineserestaurant. Takegoodcareofyourself. Theresa 27.WhatweremostpeopledoingwhentheTangshanearthquakehappened? A.TheyweresleepingB.They
8、werewatchingTV. C.Theywerepreparingtorest.D.Theywereminingbelowtheearth 28.WhatcausedsomanypeopletodienearLakeNyos?
