C

    NorthAmericanblackbearsareshyanimals.Theyarefearfulbynatureandwillusuallyrunawayiftheyseeorhearpeople.Becauseofthisitcanbedifficultforscientiststolearnabouttheseanimals.

    InordertostudyblackbearsresearchersfromNewJerseyUSAcatchbearsandusedrugstohelpthemgotosleep.Researchersthenwork

outthesizeandtheweightofthebeartakebloodtotestfordiseasesremoveatoothandtakeittothelabtofindoutitsage.FromthesestudiesresearcherswanttofindouthowmanybearsliveinNewJerseyhowlongtheyliveandhowmanybabiestheyproduce.

    ButinMinnesotaUSA.researchersstudybearsthatarecompletelyawake.Thebearsknowtheresearchers，voicesandtheyarenotafraidoftheresearchteam.Withthehelpofafewgrapestokeepthebearsbusyresearcherscantouchthemtochecktheirheartslookattheirteethanddootherjobs.Researcherscanalsowalkorsitwithbearsforhoursandmakevideostolearnabouttheireverydaylives.

    Inbothplacesthemainpurposeisthesame—tomakesurethereisahealthypopulationofblackbears.Buttheresearchmethodsandthekindsofinformationthatresearchersareabletocollectarequitedifferent.

()41.InthefirstparagraphwecanlearnthatNorthAmericanblackbearsare .

   A.shyandfearfulanimals   B.notfoundtoday

   C.wellknowntoscientists   D.notafraidofpeople

()42.Theunderlinedword“remove”inthesecondparagraphprobablymeans inChinese.

   A.拔下   B.移植   C.清洗   D.修补

()43.WhichofthefollowingmayNOTbeincludedintheNewJerseystudiesonbears?

   A.Theage.B.Thewayoftheircommunication.

   C.Theweight.D.Thenumberofbabiestheyproduce.

()44.IntheMinnesotastudiesresearchers .

   A.cannevergetclosetothebears

   B.studythebearswhiletheyareasleep

   C.usegrapestomakethebearsfull

   D.learnalotaboutthebears5everydaylives

()45.Whatdothetwostudieshaveincommon?

   A.Researchplaces. B.Themainpurpose.

   C.Researchmethods.D.Collectedinformation.