首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
One basic weakness in a conservation system based wholly on economic motives is that most members of the land community have no
One basic weakness in a conservation system based wholly on economic motives is that most members of the land community have no
admin
2014-09-17
39
问题
One basic weakness in a conservation system based wholly on economic motives is that most members of the land community have no economic value. Yet these creatures are members of the biotic community. If its stability depends on its integrity, they are entitled to continuance.
When one of these non-economic categories is threatened, and, if we happen to love it, we invent excuses to give it economic importance. At the beginning of century, songbirds were supposed to be disappearing. Scientists jumped to the rescue with some distinctly shaky evidence to the effect that insects would eat us up if birds failed to control them. The evidence had to be economic in order to be valid.
It is painful to read these roundabout accounts today. We have no land ethic yet, but we have at least drawn nearer the point of admitting that birds should continue as a matter of intrinsic right, regardless of the presence or absence of economic advantage to us.
选项
答案
完全基于经济目的的生态资源保护系统有一个基本的缺点:陆地生物群落的大部分物种没有经济价值。但是,这些物种是生物群落的组成部分。如果生态系统的稳定性依赖于其完整性的话,那么那些物种就有权力继续存在下去。 当这些无经济价值的物种中的某一种受到威胁,且我们碰巧又喜欢它,我们就会想办法来经济上赋予其重要性。在本世纪之初,人们认为鸣禽即将灭绝。科学家们立即拿出某些明显站不住脚的证据前来救驾,大致是说:如果鸟儿不能控制害虫的话,害虫就会把我们(的一切)吃掉。若证据想要有效,就必须具有经济性。 现在来看这些拐弯抹角的理由是让人心痛的。我们没有土地伦理,但是我们至少几乎已经承认了这样一种观点:不管鸟类对我们是否有经济利益,生存都是它们的固有权利。就食肉动物和捕鱼鸟类而言,也存在这种情况。
解析
转载请注明原文地址:https://kaotiyun.com/show/Y2dO777K
0
专业英语八级
相关试题推荐
TheindigenousinhabitantsofNewZealandareknownas______.
Somepeoplesimplyseeeducationasgoingtoschoolsorcolleges,orasameanstosecuregoodjobs;mostpeoplevieweducation
Becausehumananatomydoesnotchange(exceptoverlongperiodsoftime),knowledgeacquiredacenturyagowasstillaccurateto
WhichofthefollowingisNOTanapproachforEnglishlanguagetoenrichitsvocabularyinthepastseveralcenturies?
ThegrammaticalwordswhichplaysolargeapartinEnglishgrammarareforthemostpartsharplyandobviouslydifferentfromt
PeoplearenowbuyingeverythingovertheWeb--notjustbooksandCDs.Onlineconsumersareforkingovercashtobuyfood,zoomi
WashingtonD.C.,capitaloftheUnitedStates,isnamedafter
_____isthestudyoftheinternalstructureofwords,andtherulesbywhichwordsareformed.
Therelianceoncreditreportsinhiringisbecomingwidespread.AsurveybytheSocietyforHumanResourceManagementfoundt
随机试题
下列哪项是三级预防的措施
临床上应用局麻时在麻药中加入肾上腺素的作用如下,其中哪项可以除外
易炭化物检查法是检查溶液颜色检查法是检查
甲将潜艇的部署情况非法提供给一外国著名军事杂志。在审判过程中,法院决定对其取保候审。关于对甲取保候审的执行机关,下列哪一选项是正确的?(2008—卷二—33,单)
《会计法》规定,业务收支以人民币以外的货币为主的单位,可以选定美元作为记账本位币()
上海市某房地产开发公司委托某税务师事务所对企业所得税和土地增值税的情况进行鉴证。企业经营资料如下:(1)2013年开发新楼盘,目前公司在开发项目为幸福小区,幸福小区相关资料如下:2013年以出让方式取得市区某块土地用于开发,占地面积为4万平方米,地价款
甲公司以人民币为记账本位币,国内货物运输采用人民币结算,国际货物运输采用美元结算。甲公司将货轮专门用于国际货物运输,在计算货轮未来现金流量现值时,下列说法中正确的有()。
学生的个别差异包括()。
《恋人絮语》
FiveTipsforStudyingAmericanRevolutionAmericanRevolution—ARI.AvoidthedreadedAR(1)______bubble.(1)______A.notjustk
最新回复
(
0
)