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
"The world’s environment is surprisingly healthy. Discuss." If that were an examination topic, most students would tear it apart
"The world’s environment is surprisingly healthy. Discuss." If that were an examination topic, most students would tear it apart
admin
2018-05-11
83
问题
"The world’s environment is surprisingly healthy. Discuss." If that were an examination topic, most students would tear it apart, offering a long list of complaints: from local smog (烟雾) to global climate change, from the felling (砍伐) of forests to the extinction of species. The list would largely be accurate, the concern legitimate. Yet the students who should be given the highest marks would actually be those who agreed with the statement. The surprise is how good things are, not how bad.
After all, the world’s population has more than tripled during this century, and world output has risen hugely, so you would expect the earth itself to have been affected. Indeed, if people lived, consumed and produced things in the same way as they did in 1900 (or 1950, or indeed 1980), the world by now would be a pretty disgusting place: smelly, dirty, toxic and dangerous.
But they don’t. The reasons why they don’t, and why the environment has not been ruined, have to do with prices, technological innovation, social change and government regulation in response to popular pressure. That is why today’s environmental problems in the poor countries ought, in principle, to be solvable.
Raw materials have not run out, and show no sign of doing so. Logically, one day they must: the planet is a finite place. Yet it is also very big, and man is very ingenious. What has happened is that every time a material seems to be running short, the price has risen and, in response, people have looked for new sources of supply, tried to find ways to use less of the material, or looked for a new substitute. For this reason prices for energy and for minerals have fallen in real terms during the century. The same is true for food. Prices fluctuate, in response to harvests, natural disasters and political instability; and when they rise, it takes some time before new sources of supply become available. But they always do, assisted by new farming and crop technology. The long-term trend has been downwards.
It is where prices and markets do not operate properly that this benign (良性的) trend begins to stumble, and the genuine problems arise. Markets cannot always keep the environment healthy. If no one owns the resource concerned, no one has an interest in conserving it or fostering it: fish is the best example of this.
Fish resources are diminishing because ______.
选项
A、no new substitutes can be found in large quantities
B、they are not owned by any particular entity
C、improper methods of fishing have ruined the fishing grounds
D、water pollution is extremely serious
答案
B
解析
根据文章最后一段第2、3句“市场并不能总是保持环境的健康发展。如果相关的资源不属于任何人,人们就没有兴趣保护它、培养它。鱼类资源就是一个最好的例子”,因此,可推断B正是鱼类减少的原因。
转载请注明原文地址:https://kaotiyun.com/show/gZT7777K
0
大学英语六级
相关试题推荐
HowtoDuckCabinFeversandOtherAchesonaPlane?[A]Onthefirstlegofthisseason’sholidaytraveltour,Ihadthedelight
Fertilizerusehasexploded,overloadingplantsworldwide,likelyalteringecosystemsfordecadestocenturies,scientistsrepor
Fertilizerusehasexploded,overloadingplantsworldwide,likelyalteringecosystemsfordecadestocenturies,scientistsrepor
Itseemslogical:Collegegraduateshavelowerunemploymentandearnmorethanlesseducatedworkers,so,thethinkinggoes,the
Wikipedia’sTrembling[A]Wikipediaisdying!Wikipediaisdying!That’sthelinerepeatedbythemediaeverysixmonthsorsosi
Since2007,theAmericanPsychologicalAssociation(APA)hasconductedasurveyofdifferentaspectsofstressinAmerica,Thisye
EatingOurYoung[A]AtFeltonvilleSchoolofArtsandSciences,amiddleschoolinapoorneighborhoodofPhiladelphia,thescho
Inthepushtocuttheamountofcarbonwereleaseintotheatmosphere,solutionsusuallyfocusonhowtoreduceourpoweruseo
A、Ithelpschildrenresistthetemptations.B、Ithelpsstudentsdothingsaccordingtotherules.C、Ithelpschildrenexpressth
A、Automaticallydonebythecomputer.B、Correctlymatchedbytwocomputersystems.C、ManuallydonebyHMRCworkers.D、Legallyid
随机试题
下列选项关于我国地方戏的说法正确的是()。
工作质量取决于产品质量,工作质量是企业产品质量的综合反映,产品质量是保证工作质量的前提。()
A.软组织型颈椎病B.神经根型颈椎病C.脊髓型颈椎病D.椎动脉型颈椎病E.交感神经型颈椎病特点为颈肩臂痛并有神经根支配区感觉和运动障碍颈椎病分型为
为了使水泥混凝土路面层有较大的粗糙度,可采用()的方法。
设备基础浇筑时一般应分层浇筑,并保证上下层之间不留施工缝,每层混凝土的厚度为()mm。
某施工企业2月份钢筋原材料的实际费用为30万元,而计划值为25万元,由于钢筋原材料费由工程数量、单位工程量钢筋耗用量和钢筋单价三个因素乘积构成,若要分别分析这三个因素对钢筋原材料费的影响方向及程度,适宜采用的财务分析方法是()。
下列关于刑法的主刑和附加刑说法错误的一项是:
下列不属于我国地方国家机关的是:
根据下面材料回答16-20题:2012年我国全年完成邮电业务总量15022亿元.比上年增长13.0%,其中,邮政业务总量2037亿元,增长26.7%:电信业务总量12985亿元,增长11.1%。年末固定电话用户27815万户,其中,城市电话用户18893
中国人民银行2021年7月16日发布《中国数字人民币的研发进展》白皮书。白皮书显示,数字人民币是央行发行的(),主要定位于(),将与实物人民币长期并存,主要用于满足公众对数字形态现金的需求,助力普惠金融。
最新回复
(
0
)