Thewasawonderfuloldmanwholovedalmosteverything，animals，spiders，insects…Oneday，whilewalkingthroughthewoods，thenicemanfoundacocoon（茧）ofabutterfly．Hedecidedtotakethecocoonhometowatchitsmagicprocess

　　Thewasawonderfuloldmanwholovedalmosteverything，animals，spiders，insects …Oneday，whilewalkingthroughthewoods，thenicemanfoundacocoon （茧） ofabutterfly．Hedecidedtotakethecocoonhometowatchitsmagicprocessof （21）___fromalittlecocoonintoabutterfly．He （22）___placedthecocoononhiskitchentableand （23）___itfordays．Onedaythecocoonstartedtomove，asmall （24）___appeared．Theoldmansatbesideitandwatchedasthebutterflyinsidestruggledforseveralhoursto （25）___itsbodythroughthelittlehole．

　　（26）___，thebutterflyseemedtostopmakinganyprogress．Itappearedasifithadgotten （27）___itcouldanditcouldgonofarther．Theoldmanfelt （28）___forthelittlebutterflyinsidesohedecidedtohelpthelittle （29）___．Hetookapairofscissorsandcuttheremainingbitofcocoonopen．Thebutterflythencameouteasily，butithada （30）___bodyandsmall，shriveled （枯萎的） wings．

　　Themancontinuedtowatchthebutterflybecauseheexpectedthat，（31）___，thewingswouldexpandandbeableto （32）___thebody，whichwouldslimdownintime．Neitherhappened!（33）___，thebutterflyspenttherestofitslifecrawlingaroundwithanunusuallyfatbodyandshriveledwings．Itneverwasabletofly．

　　Whattheman，inhis （34）___andeagerness，didnotunderstandwasthattherestrictingcocoonandthestruggle （35）___togetthroughthetinyopeningwerenature'swayofforcingfluid （液体） fromthebodyofthebutterflyintoitswings（36）___itwouldbereadyforflightonceitachievedfreedom．

　　Sometimes （37）___areexactlywhatweneedinourlife．Ifnatureallowedusto（38）___lifewithouthardshipsorobstacles，itwouldweakenorevendamageusovertimebothphysicallyandmentally．Wewouldnotbeas （39）___aswecouldhavebeen．Giveeveryopportunityachance，leavenoroomfor （40）___．haveagreatday，greatlife，andstrugglealittle．Thenfly!

　　21．A．advancingB．transformingC．growingD．developing22．A．gentlyB．randomlyC．cheerfullyD．casually23．A．tookoverB．watchedoverC．checkedoverD．turnedover24．A．spot