水資源的英語作文

水資源的英語作文導(dǎo)語：水資源是開展國(guó)民經(jīng)濟(jì)不可缺少的重要自然資源。在世界許多地方，對(duì)水的需求已經(jīng)超過水資源所能負(fù)荷的程度，同時(shí)有許多地區(qū)也瀕臨水資源利用之不平衡。下面是為你帶來的水資源的作文，歡送閱讀。WaterShortage提綱1.水的重要性。2.造成水資源短缺的原因。3.緩解缺水問題及保護(hù)水資源。Peoplecan'timaginelifewithoutwater.Withoutit,theearthweliveonwouldbeadeadone.Therewouldbenotrees,nocrops,noanimalsandnopeople.Sowaterisconsideredtobenexttooxygeninimportance.Althoughnearlythreequartersoftheearth'ssurfaceiscoveredwithwater,itisseawaterandundrinkable.Thedemandforwaterisincreasing,whilewaterresourcesarescarce.Agriculturalproductionneedsenormousamountsofwater,sodoesindustry.Besides,therapidgrowthofpopulationmakesitmoreandmoredifficultforpeopletosurvivebecauseofthewatershortage.Sowatershortagehasbeeoneofthemostseriousproblems.Fortunately,peoplehaverealizedthispressingproblemandaretryingtofindwaystosalveit.First,peopleareurgedtoeconomizeonwater.Second,measuresaretakentoprotectwaterresources.Third,circulatingwaterisusedforindustrialpurposesoverandoverinfactoviesandtreatedsewagewaterisusedforirrigationinfarmingland.WaterProblemsintheFuture(未來的水資源問題)1.水資源問題將來會(huì)更嚴(yán)峻;2.解決水資源問題的方法。[寫作導(dǎo)航)第一段圍繞提綱，舉例說明為水資源問題會(huì)變得更加嚴(yán)重，如人口增加帶來的水污染、工農(nóng)業(yè)生產(chǎn)帶來的水污染等，段末呼吁應(yīng)采取果斷措施，為第二段伏筆;第二段給出解決方法，一是垃圾、廢水等廢棄物的處理，二是局部或全部回收利用廢棄物。[]Presently,theworldisfacedwithseriouswaterproblems.Buttheseproblemswittbeemoreintenseandmoreplexinthefuture.Ourincreasingpopulationwitttremendouslyincreaseurbanwaters,primarilysewage.Ontheotherhand,increasingdemandsforwaterwittdecreasesubstantiallytheamountofwateravailablefordilutingwastes.Rapidlyexpandingindustrieswhichinvolvemoreandmoreplexchemicalprocesseswillproducelargevolumesofliquidwastes.Manyofthesewittcontainchemicalsthatarepoisonous.Tofeedourrapidlyexpandingpopulation,agriculturewillhavetobeintensified.Thiswillinvolveeverincreasingquantitiesofagriculturechemicals.Fromthis,itisapparentthatdrasticstepsmustbetakenimmediatelytodevelopcorrectivemeasuresforthepollutionproblems.Therearetwowaysbywhichthesepollutionproblemscanbelessened.Thefirstrelatestothetreatmentofwastestodecreasetheirpollutionhazard.Thisinvolvestheprocessingofsolidwastes"priorto"disposalandthetreatmentofliquidwastestopermitthereusetothewaterorbestreducepollutionuponfinaldisposal.Thesecondapproachistodevelopaneconomicuseforallorpartofthewastes.Farmmanureisspreadinfieldsasanutrient.Wastesfromsewagedisposalplantsareusedinsomeareasbothforirrigationandforthenutrientscontained.Liquidwastesfromotherprocessingplantsmayalsobeusedasasupplementalsourceofwater.Onlybydoingthesepromptlynowcanweexpecttosolvetheseriouswaterproblemsinthefuture.人們總以為淡水是取之不盡的，實(shí)際上淡水資源是很有限的。請(qǐng)談?wù)勀愕目捶?。Itisgenerallybelievedthatthereisagoodsupplyoffreshwater.Buttoourdisappointment,thefactisjusttheopposite.Aswecansee，theworldpopulationisgrowingrapidlydaybyday.Soenoughfreshwaterisneededtofeedsuchabigpopulation.What'smore,withthedevelopmentofindustry,factoriesandvehiclesproducepoisonousgasesorwastes,whichconsequentlyresultsinthepollutionofwater.Thoughfresh,agoodamountofitcannolongerbeused.Onlyquitelimitedfreshwaterresourceisavailabletohumanbeings.Soit'shightimefo