2021版高考英语一轮复习 Unit 3 Science and nature课后达标检测 牛津译林版必修5.doc

14Unit3Scienceandnature课时练12篇阅读＋1篇完形eq\a\vs4\al(Ⅰ)阅读理解A(2020·宣城诊断)InthestoryofTheCrowandthePitcherfromAesop’sFables,athirstycrow(乌鸦)dropsstonesintoanarrowjartoraisethelowlevelofwaterinsidesohecantakeadrink.Nowscientistshaveevidencetobackupthatstory.Crowsactuallydounderstandhowtomakewaterdisplacement(排水量)worktotheiradvantage,experimentsshow.Theresultssuggestthatthebirdsare,atleastinsomeaspects,assmartasfirst­graders.Researchers,ledbySarahJelbertattheUniversityofCambridge,presentedsixcrowswithtubescontainingwater.Insidethetubes,awormorapieceofmeatonapieceofwoodwasfloating,justoutofreachofthecrows.Infrontofthetubes,theresearchersarrangedseveralrubbererasersthatwouldsink,andsomeplasticobjectsthatwouldfloat.Thecrowsfoundoutthattheycoulddroptheerasersintothetubesinordertoraisethewaterlevelandgettheirsnack.However,the_birds_handled_awkwardlyinexperimentsinwhichtheycouldchoosetodropobjectsineitherawidetubeoranarrowonetogetasnack,theresearcherssaid.Droppingobjectsintoanarrowtubewouldliftthewaterlevelbyagreateramountandputthetreatwithinreachafterjusttwodrops;whileittookaroundsevendropstoraisethesnacktothesamelevelinthewidetube.Thecrowsobviouslydidn’trealizethis,andmostofthemwentforthewidetubefirst.Previousstudiesshowedthatchimpsandhumanchildrencansolvesimilartasks.Ina2011study,chimpsandkidsfoundoutthattheycouldputwaterintoatubetoreachapeanutthatwasfloatinginasmallamountofwateratthebottom.【解题导语】本文主要介绍了科学家通过实验对乌鸦智商进行的研究。1．HowdidthecrowsgetthesnackinSarah’sexperiment?A．Bybreakingthetube.B．Bydroppinginerasers.C．Bystandingonthewood.D．Byremovingthewood.B解析：细节理解题。根据第三段最后一句“Thecrowsfoundoutthattheycoulddroptheerasersintothetubesinordertoraisethewaterlevelandgettheirsnack.”可知，乌鸦能够把橡皮擦扔到管里，使水位升高，然后吃到零食。所以选B项。2．Whatdoestheauthormeanby“thebirdshandledawkwardly”inParagraph4?A．Theywereunabletotelldifferentshapes.B．Theydroppedobjectsonlyintonarrowtubes.C．Theywerenotawareofthesnackatfirstsight.D．Theymostlyavoidedtheeasierwaytogetthesnack.D解析：推理判断题。从第四段可知，实验中的乌鸦在面对粗细不同的管子时，虽然只需往细管里投两次物体就可以