C
Elephantsarethelargestlandanimalsandtheyneedplentyoflivingspan.Theyhaveseasonalmigration(迁徙)routes.Ashumanpopulationsriseelephantlandisbeingclearedforagricultureandotherkindsofdevelopment.
Whenanimalsareeffectivelytrappedonsmallareasoflanditrestrictsthegenepoolandalsoresultsinashortageoffood.Whereelephantreserves(保护区)borderagriculturalareaselephantsareoftenattractedtoleaveparkstoattackcropsandbarns.Onlythestrongestwallswillstopanadultelephantsofarmershavegreatdifficultyprotectingtheirfields.
InIndiaelephantsdon’tonlyattackforfood.Someevenhavedevelopedatasteforricebeer.InAssamelephant-humanconflicthasresultedinthedeathofmorethan150peopleand200elephantsintwoyears.
Povertyleadstothekillingofelephantsformeat.Ifpeopledon’thaveenoughfoodandtheirgovernmentscannotaffordtoenforcepoaching(偷猎)bansit’snotdifficulttopredicttheoutcome.
Ivorycomesfromelephanttuskswhichcangrowtobe3metreslong.BothmaleandfemaleAfricanelephantshavelargetusks.
MostnewivorycomesfromAfricaandissoldasahighstatusmaterialinAsiancountriessuchasThailandmainlandChinaandJapan.Itcanfetch$150apoundandiscarvedtomakedecorationschopsticksandinkstamps(印章).Theconservationpriority(重点)hereistochangepublicattitudes.
InsomecountriesinsouthernAfricawhereconservationeffortshavebeensuccessfulthereisnotenoughroomforagrowingelephantpopulationandanimalshavetobekilled.ACITESmeetinginNovember2002ruledthatBotswanaNamibiaandSouthAfricamaysellstock-piled(库存的)ivorystartingin2004.
Manyconservationistsareconvincedthatthiswillfuelthedemandforivoryandleadtomoreillegalpoachingtheysayitisalmostimpossibletotelllegalfrompoachedivory.Thegovernmentsarguethatthesaleswillbeusedtofundconservationwork.
64.Whichofthefollowingisn’ttheresultofsmallerelephantland?
A.Seasonalmigration. B.Elephant-humanconflict.
C.Restrictingthegenepool. D.Shortageoffood.
65.Themostimportantthingtoprotectelephan