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1、2012年内蒙古大学研究生英语复试真题一阅读(1)Somedesertanimalscansurvivethesummerheatanddrynessbecausetheyareveryunusual.Thecamel,forexample,canexperienceandbearanincreaseinthetemperatureofitsbodyanditsbloodof9℃withoutanythingbadhappeningtoit.Inaddition,itcandrinkalotofwateratonetime;thenstoreeno
2、ughwaterinpartsofitsbodytosupplyitsneedsfortwoweeksormore.Thekangaroorat,ontheotherhand,getsallthewateritneedsfromwaterthatitproduceswhenitbreathes.However,mostanimalsneedtomaintainafairlyconstantbodytemperature,andwilldieifitrisesmorethan5℃.Therefore,theyneedtofindsomewaytost
3、ayawayfromtheheatofthesummersun.Norcanmanyanimalseitherstoreorproducewaterintheirbodies,asthecamelandkangarooratcan.Sotheymustfindwaystokeeptheirbodiesfromlosingwaterbecauseoftheheat.Becauseveryfewdesertanimalscansurvivethehightemperatureofatypicalsummer’sday,mostofthemareacti
4、veonlyinthenight.Onlyafterthesunhassetdoesthedesertcomefullytolife.Thenightisrelativelycool,andthedarknessprovidesprotection,notonlyfromthesun,butalsofromotheranimalsandfromthebirds.Sothecomingofdarknessisthesignalforthelargemajorityofanimalsandinsectstostartagaintheirsearchfo
5、rwaterandfood.Whenmorningcomes,mostofthemseekshelteragain:manygounderground;nearlyallfindsomedarkandcoolplacewheretheycankeepawayfromthesun’sheat.Formanyspeciesofinsects,livinginthedesertiseasierthanforanimals.Likemanydesertplants,theyhaveawaterproofskinwhichpreventswaterlossb
6、ecauseofthehightemperature.Inaddition,somespeciesspendallormostoftheirlifebelowground.Here,formostoftheyearatleast,thereissomemoisture,anditisgenerallycoolerthanonthesurface.Inthecaseofants,onlyadultsleavetheundergroundnests,andtheydosoonlytogatherfoodortodefendthenestagainsta
7、ttack.26.Comparedwithotherdesertanimals,thecamelcanbear.A.averylowbodytemperatureB.onlyalittlechangeinbodytemperatureC.abigincreaseinbodytemperatureD.aconstantchangeinbodytemperature27.Thekangarooratisdifferentfromotheranimalsinthat.A.itcanproducewaterthroughbreathingB.itcanst
8、orewaterinpartsofitsbodyC.itcanmaintaindifferentbodytemperatu
