英语六级阅读模拟试题讲解英语六级阅读模拟试题讲解2017Afoxmaygrowgrey,butnevergood.以下是小编为大家搜索整理的英语六级阅读模拟试题讲解2017，希望能给大家带来帮助!更多精彩内容请及时关注我们应届毕业生考试网!Waterproblemsinthefuturewillbecomemoreintenseandmorecomplex.Ourincreasingpopulationwilltremendouslyincreaseurbanwastes,primarilysewage.Ontheotherhand,increasingdemandsforwaterwilldecreasesubstantiallytheamountofwateravailablefordilutingwastes.Rapidlyexpandingindustrieswhichinvolvemoreandmorecomplexchemicalprocesseswillproducelargevolumesofliquidwastes,andmanyofthesewillcontainchemicalswhicharepoisonous.Tofeedourrapidlyexpandingpopulation,agriculturewillhavetobeintensified.Thiswillinvolveever-increasingquantitiesofagriculturechemicals.Fromthis,itisapparentthatdrasticstepsmustbetakenimmediatelytodevelopcorrectivemeasuresforthepollutionproblem.Therearetwowaysbywhichthispollutionproblemcanbelessened.Thefirstrelatestothetreatmentofwastestodecreasetheirpollutionhazard.Thisinvolvestheprocessingofsolidwastes"priorto"disposalandthetreatmentofliquidwastes,oreffluents(废料),topermitthereuseofthewaterorbestreducepollutionuponfinaldisposal.Asecondapproachistodevelopaneconomicuseforallorapartofthewastes.Farmmanureisspreadinfieldsasanutrient(养料)ororganicsupplement.Effluentsfromsewagedisposalplantsareusedinsomeareasbothforirrigationandforthenutrientscontained.Effluentsfromotherprocessingplantsmayalsobeusedasasupplementalsourceofwater.Manyindustries,suchasmeatandpoultryprocessingplants,arecurrentlyconvertingformerwasteproductionintomarketablebyproducts.Otherindustrieshavepotentialeconomicusesfortheirwasteproducts.26.Thepurposeofthispassageis_______.A.towarnthereaderofthedwindlingwatersupplyB.toexplainindustrialusesofwaterC.toacquaintthereaderwithwaterpollutionproblemsD.todemonstratevariousmeasurestosolvethepollutionproblem27.whichofthefollowingpointsisnotincludedinthepassage?A.Industrialdevelopmentincludesthesimplificationofcomplexchemicalprocesses.B.Dilutingwastesneedscertainamountofwater.C.Demandsforwaterwillgoupalongwiththeexpandingpopulation.D.Intensi