学必求其心得，业必贵于专精
学必求其心得，业必贵于专精
学必求其心得，业必贵于专精
兵团二中高二年级第二学期第四次月考英语试卷
I。阅读理解（共15小题,每小题2分,满分30分）
A
WinterbeginsinthenorthonDecember22nd.Peopleandanimalshavebeendoingwhattheyalwaysdotoprepareforthecoldermonths。Squirrels（松鼠）,forexample，havebeenbusygatheringnutsfromtrees。Well，scientistshavebeenbusygatheringinformationaboutwhatthesquirrelsdowiththefoodtheycollect。
TheyexamineddifferencesbetweenredsquirrelsandgraysquirrelsintheAmericanstateofIndiana.Thescientistswantedtoknowhowthesedifferencescouldaffectthegrowthofblackwalnut（黑胡桃)trees。Theblackwalnutisthenutofchoiceforbothkindsofsquirrels.Theblackwalnuttreeisalsoacentralpartofsomehardwoodforests。
RobSwihartofPurdueUniversitydidthestudywithJakeGoheen,aformerPurduestudentnowattheUniversityof
GraysquirrelsarenativetoIndiana。ButProfessorSwihartsaystheirnumbersbegantodecreaseasmoreforestswerecutforagriculture.Redsquirrelsbegantospreadthroughthestateduringthepastcentury.
Theresearcherssayredsquirrelsarenativetoforeststhatstaygreenallyear，unlikewalnuttrees.TheysaythecleaningofforestlandforagriculturehashelpedredsquirrelsinvadeIndiana.JakeGoheencallsthemasignofanenvironmentalproblemmorethanacause.
1。ThestudydonebyRobSwihartandJakeGoheenisto________.
A。findoutthelivingconditionsforsquirrels
B。learnsquirrels’influenceonblackwalnuttrees
C。dosomethingtogetridofsquirrels
D。savetheforestsintheAmericanstateofIndiana
2.Thedifferencebetweengraysquirrelsandredsquirrelsmainlyliesin________.
A。thewaytheygatherthewalnut B。thetimetheyhavewintersleep
C.theplacetheyhavewintersleep D。theplacetheystorethewalnuts
3。WhenProfessorSwihartsays“deathtrapsforseeds”，heactuallymeansthat________.
A.redsquirrelseatmorenutsthangraysquirr