资源描述：
《even before there were people, there were cases of air pollution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、Evenbeforetherewerepeople,therewerecasesofairpollution阅读理解答案 阅读理解Evenbeforetherewerepeople,therewerecasesofairpollution.Therewereduststorms.Volcanoeserupted,sendingashandpoisonousgasesintotheatmosphere.Whenpeopleappearedonthesceneandbegantheirconquestofnature,theyalsobegantopollutethea
2、ir.Theyclearedland,whichmadepossibleevenlargerduststorms.Theybuiltcities,andthesoot(煤烟)fromtheirhearthsfilledtheair.TheRomanauthorSenecawroteinAD61ofthe“stink,sootandheavyair”oftheimperialcity.In1257,theQueenofEnglandwasforcedtomoveawayfromthecityofNottinghambecausetheheavysmokewasunbea
3、rable.Theindustrialrevolutionbroughtevenworseairpollution.Coalwasburnedtopowerfactoriesandtoheathomes.Soot,smoke,andsulfurdioxide(二氧化硫)filltheair. ThegoodolddaysNotinthefactorytowns.Buttherewerelargeruralareasunaffectedbyairpollution. Withincreasingpopulation,theentireworldisbecomingm
4、oreurban.Itisthehugecitiesthataremostaffectedbyairpollution.Butruralareasarenotunaffected.Intheneighborhoodsaroundsmokyfactories,thereisevidenceofincreasedratesofspontaneousabortion(自然流产)andofpoorwoolqualityinsheep,decreasedeggproductionandahighdeathrateinchickens. TrafficpoliceinTokyo
5、havetoweargasmasksandtake“oxygenbreaks”—breathingoccasionallyfromtanksofoxygen.SmoginAthensattimeshasforcedfactoryclosingsandtrafficrestrictions.AcidraininCanadaiscausedbyairpollutionintheUnitedStates,contributingtostrainedrelationshipsbetweenthetwocountries.Sydney,Rome,Tehran,Ankara,Me
6、xicoCity,andmostothermajorcitiesintheworldhavehadfrighteningexperiencesofairpollution. Oneofthetwomajortypesofsmog—consistingofsmoke,fog,sulfurdioxide,sulfuringacid(H2SO4),ashandsoot—iscalledLondonsmog.Indeed,thewordsmogisthoughttohaveoriginatedinEnglandin1905asacontractionofthewords“s
7、moke”and“fog”. ProbablytheworstcaseofsmoginhistorystartedinLondononThursday,4December,1952.AlargecoldairmassmovedintothevalleyoftheThamesRiver.Atemperatureinversionplacedablanketofwarmairoverthecoldair.Withnightfall,adensefogandbelow-freezingtemperaturescausedthepeopleofLondon
