2017年12月英语六级阅读练习：仔细阅读（六）思维导图
2017年12月英语六级阅读练习：仔细阅读（六）
树图思维导图提供 2017年12月英语六级阅读练习：仔细阅读（六） 在线思维导图免费制作，点击“编辑”按钮，可对 2017年12月英语六级阅读练习：仔细阅读（六） 进行在线思维导图编辑，本思维导图属于思维导图模板主题，文件编号是：5d7eb39e07dcb80404a4556638e11fd2
思维导图大纲
2017年12月英语六级阅读练习：仔细阅读（六）思维导图模板大纲
Waterproblemsinthefuturewillbecomenoreintenseandmorecomplex.Ourincreasingpopulationwilltremendouslyincreaseurbanwastes,primarilysewage.Ontheotherhand,increasingdemandsforwaterwilldeceasesubstantialytheamountofwateravailablefordilutingwastes.Rapidlyexpandingindustrieswhichinvolvemoreandmorecomplexchemicalprocesseswillproducelargevolumesofliquidwastes,andmanyofthesewillcontainchemicalswhicharenoxious.Tofeedourrapidlyexpandingpopulation,agriculturewillhavetobeintensified.Thiswillinvolveever-increasingquantitiesofagriculturalchemicals,Fromthis,itisapparentthatdrasticstepsmustbetakenimmediatelytodevelopcorrectivemeasuresforthepollutionproblem.
Therearetwowaysbywhichthispollutionproblemcanbedwindled.Thefirstrelatestothetreatmentofwastestodecreasetheirpollutionhazard.Thisinvolvestheprocessingofsolidwastes"priorto"disposalandthetreatmentofliquidwastes,orefflunets,topermitthereuseofthewaterorminimizepollutionuponfinaldisposal.
Asecondapproachistodevelopaneconomicuseforallorapartofthewastes.Farmmanureisspreadinfieldsasanutrientororganicsupplement.Effluentsfromsewagedisposalplantsareusedinsomeareasbothforirrigationandforthenutrientscontained.Efflunetsfromotherprocessingplantsmayalsobeusedasasupplementalsourceofwater.Manyindustries,suchasmeatandpoultryprocessingplants,arecurrentlyconvertingformerwasteproductsintomarketablebyproducts.Otherindustriesarepotentialeonomicusesforwasteproducts.
1.Thepurposeofthispassageis______.
a.toalertthereadertothedwindlingwatersupply
b.toexplainindustrialusesofwater
c.toacquaintthereaderwithwaterpollutionproblems
d.todemostratevariousmeasurestosolvethepollutionproblem
2.WhichofthefollowingpointsisNOTINCLUDEDinthepassage?
a.Industrialdevelopmentincudesthesimplificationofcomplexchemicalprocesses.
b.Dilutingwastesneedscertainamountofwater
c.Demandsforwaterwillgoupalongwiththeexpandingpopulation
d.Intensivecultivationoflandrequiresmoreandmorechemicals
3.Thereadercanconcluedthat________.
a.countriesoftheworldwillworktogetheronpolutionproblems
b.byproductsfromwastesleadtoamoreprosperousmarketplace
c.scienceismakinggreatprogressonincreasingwatersupplies
d.someindustriesarenow,akingeconomicuseofwastes
4.Theauthorgivessubstancetothepassagethroughtheuseof_______.
a.interviewswithauthoritiesinthefieldofwatercontrols
b.opinionsandpersonalobservations
c.definitionswhichclarifyimportantterms
d.strongargumentsandpersuasions
5.Thewords"priorto"(para.2)probablymean______.
a.after
b.during
c.before
d.beyond
cadbc
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