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1、ReadthefollowingtextcarefullyandthentranslatetheunderlinedsegmentsintoChinese.YourtranslationshouldbewrittencarefullyonANSWERSHEET2.(10points)2010Onebasicweaknessinaconservationsystembasedwhollyoneconomicmotivesisthatmostmembersofthelandcommunityhavenoeconomicvalue.Yetthe
2、secreaturesaremembersofthebioticcommunityand,ifitsstabilitydependsonitsintegrity,theyareentitledtocontinuance.Whenoneofthesenoneconomiccategoriesisthreatenedand,ifwehappentoloveit.Weinvertexcusestogiveiteconomicimportance.Atthebeginningofcenturysongbirdsweresupposedtobedi
3、sappearing.(46)Scientistsjumpedtotherescuewithsomedistinctlyshakyevidencetotheeffectthatinsectswouldeatusupifbirdsfailedtocontrolthem.theevidencehadtobeeconomicinordertobevalid.Itispainfultoreadtheseroundaboutaccountstoday.Wehavenolandethicyet,(47)butwehaveatleastdrawnnea
4、rthepointofadmittingthatbirdsshouldcontinueasamatterofintrinsicright,regardlessofthepresenceorabsenceofeconomicadvantagetous.Aparallelsituationexistsinrespectofpredatorymammalsandfish-eatingbirds.(48)Timewaswhenbiologistssomewhatoverwordedtheevidencethatthesecreaturespres
5、ervethehealthofgamebykillingthephysicallyweak,orthattheypreyonlyon"worthless"species.Somespeciesoftreehavebeenreadoutofthepartybyeconomics-mindedforestersbecausetheygrowtooslowly,orhavetoolowasalevaletopayastimbercrops.(49)InEurope,whereforestryisecologicallymoreadvanced,
6、thenon-commercialtreespeciesarerecognizedasmembersofnativeforestcommunity,tobepreservedassuch,withinreason.Tosumup:asystemofconservationbasedsolelyoneconomicself-interestishopelesslylopsided.(50)Ittendstoignore,andthuseventuallytoeliminate,manyelementsinthelandcommunityth
7、atlackcommercialvalue,butthatareessentialtoitshealthyfunctioning.Itassumes,falsely,Ithink,thattheeconomicpartsofthebioticclockwillfunctionwithouttheuneconomicparts.2009Thereisamarkeddifferencebetweentheeducationwhicheveryonegetsfromlivingwithothers,andthedeliberateeducati
8、ngoftheyoung.Intheformercasetheeducationisincidental;itisnaturalandimportant,butitisnottheexpres
