Alittleboyalmostconsideredhimselfasthemostunfortunatechildintheworldbecauseaterribleillnessmadehisleglame （瘸的）．He（26）___playedwithhisclassmatesandwhentheteacheraskedhimtoanswerquestions，healways（27）___hisheadwithoutaword．

Onespring，theboy'sfathergotsomesaplings （树苗）（28）___theneighborandtoldhis（29）___toplantoneeachperson．Thefatheralso（30）___tobuyafavoritegiftforwhoevergrewbest．Theboyalsowantedtogethisfather's（31）___．Butseeinghisbrothersandsisterscarrywateractively，helost（32）___．Soafterwateringitonceortwice，henever（33）___it．

Afewdayslater，whenthelittleboywenttoseehistreeagain，hewas（34）___tofindthatitappearedgreenerand（35）___thanhissisters'andbrothers'．Hisfather（36）___hispromise，andsaidthathewouldsurelybecomeanoutstandingbotanist （植物学家） whenhe（37）___up．

Fromthenon，thelittleboyslowlybecame（38）___．Onenight，lookingatthebrightmoonlightoutside，hesuddenlyrecalledwhatthe（39）___teacheroncesaid：plantsgenerallygrowatnight．Thenhecametothecourtyardandunexpectedlyfoundhisfather（40）___underhistreewithabigspoon．（41）___，heunderstood：hisfatherhadbeensecretlywateringhissmalltree!He（42）___tohisroom，tearsrunningdownoutofcontrol…

Yearspassed．Thelittleboydidn'tbecomeabotanist，（43）___ hewas elected President of the United States．HisnamewasFranklinRoosevelt．

（44）___isthebestnutrition （营养） oflife，evenifitisjustonespoonfulofclear（45）___，it can make the tree oflife lively．