Onthewaytoschool,alittleboyfoundacocoon(茧)ofabutterflyandwatchediteveryday.Oneday,itstartedtobreakthroughasmallholeinthecocoon,butit 26greatly.Finally,itseemeditcouldn’tsucceed.Theboyfelt 27 forthebutterflybecauseheknewitwasgoingtodieifitdidn’tgetout.Soheranintothehouseandgotapairof 28 andcutthecocoonalittle.Thebutterflycameoutandwasfree.Theonlystrangethingwasthatthebutterflyhasaswollen(肿胀的)bodyanddry 29 .Theboykeptwaitingfortheswellingtogodownandforthewingstogrow,but 30 didn’t.Thebutterflycrawled(爬)aroundandunableto 31 andthenitdiedanearlydeath.Therefore,helearntthatthebutterflywassupposedtostruggletogetoutofthecocoon.Infact,thestruggletogetoutofthecocoon 32thefluid(液)outofthebodyandititswings. 33thestruggle,thebutterflycouldn’tgrow,andwould 34 fly.Bytryingtohelpthebutterfly,theboy 35 hurtit.