Waterisveryimportanttous.Ifyoudon’thavewaterforthreedays,youwilldie.Wecanusewaterforflowers,swimming,washingandmanydifferentthings.Weuseittocook,makeelectricity,putoutfiresandsoon.Weusemillionsoflitersofwatereveryday. 　　Doyouknowhowdoesthewatercometoyourhome?Ittravelsthroughwaterpipes.Somearelongandwidebutsomeareshortandnarrow.Thenthewatertravelsthroughthewaterpipestothereservoirs.Thenittravelsthroughthewaterpipestotheriverandtothespecialfactories(wecallwaterplants)thatpurifythewater.Whenthewaterispurified,wecandrinkit.Pleasedon’tleavegarbageinthewateronwhichweline,andkeepthewaterclean. 　　Waterisessentialtolivingthings.Forinstance,ifthereisnoenoughwaterinahumanbody,apersonmayfeeluncomfortableorgetsickeasily.Tomakemattersworse,onemaydieofthirst.Similarly,plantsmaywitherordieforlackofwater.Itisapparentthatalllivingthingsneedwatertokeepalive. 　　Judgingfromtheimportanceofwater,weshouldknowhowtoconservewater.Thefirstthingistostoppollutingwaterbecausewhatwereallyneediscleanwater.Atthesametime,besuretoturnoffthefaucetimmediatelyafterusingwater.Andweshouldmakeefficientuseofwatertoavoidwastingit.Onewayistorecycleasmuchwateraspossible.Tosumup,weshouldeconomizeonwatersoastomaintaintheabundanceofwater,whichisanindispensableelementoflife. 　　可能对初一的有些难,改改吧