Whenitcomestoproblemsolvingmanyofushaveheardoftheskillsofthecrow(乌鸦)inAesop’sFables(《伊索寓言》).Inthestoryathirstycrowcomesacrossabottleofwaterbutthewaterlevel(水平面)isoutofitsr
Whenitcomestoproblemsolvingmanyofushaveheardoftheskillsofthecrow(乌鸦)inAesop’sFables(《伊索寓言》).
Inthestoryathirstycrowcomesacrossabottleofwaterbutthewaterlevel(水平面)isoutofitsreach.Thebirdthendropssmallstonesintoituntilthewaterlevelrisesenoughforthebirdtodrink.
“Ohit’sjustafable”youmaythink.Afterallit’shardtoimaginebirdsknowingabout“problemsolving”.
Butnewresearchhasfoundthatcrows’brainsmaysometimesbebetterthanthoseof6-year-oldchildren.
InarecentexperimentUSscientistCorinaLoganandherteamcaughtsixcrowstotestthem.Thereweretwotubes(试管)ofwateronewideandtheothernarrow(窄的).Eachcrowwasgivenfourstonesenoughtohelpthemgetthewaterinthenarrowtubebutnotthewideone.
Surprisinglythecrowsdroppedallormostofthestonesintothenarrowertubeandgotthefoodreward!Theyhadfoundoutthecause-and-effectrelationship.Usingsuchbrainscrowsaremakingtheirliveseasier.ForexamplesomecrowsincitieshavelearnedtouseroadtrafficforbreakingnutsNationalGeographicNewsreported.
Buthowaretheirwits(智力)comparedtohumans’?Logan’steamdidanotherexperimentthistimeonbothcrowsandchildren.
Herethecrowsandchildrenhadtochoosebetweentwosetsoftubes.
Withtheredsetwhentheydroppedastoneintoawidetubethewaterlevelraisedinaconnectednarrowtubethatcontainedfood.
Thebluesetoftubeshoweverhadnoconnectionbetweenthem.Sodroppingastoneinthewidetubedidnotcausethewaterleveltoriseinthenarrowtube.
Childrenaged7to10wereabletolearntherule.Childrenaged4to6howeverfailed.
Fiveofthesixcrowsfailedthetest.ButKittya6-month-oldcrowpassedit.Sheputallormostofthestonesintotheredtube.
Socouldabirdbemorecleverthanakindergartner?Don’tbetooquicktosayno.
1.WhyisAesop’sFablesmentionedinthebeginningofthearticle?
A.Tointroducetheideathatcrowsaresmart.
B.Toshowthatfablesaboutcrowsarewrong.
C.Toexplainwhycrowscansolveproblems.
D.Toprovethatcrowscanbebetterthanbabiesatproblemsolving.
2.WhathaveLogan’steamfoundoutfr