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
Sustainable development is applied to just about everything from energy to clean water and economic growth, and as a result it h
Sustainable development is applied to just about everything from energy to clean water and economic growth, and as a result it h
admin
2013-01-20
111
问题
Sustainable development is applied to just about everything from energy to clean water and economic growth, and as a result it has become difficult to question either the basic assumptions behind it or the way the concept is put to use. This is especially true in agriculture, where sustainable development is often taken as the sole measure of progress without a proper appreciation of historical and cultural perspectives.
To start with, it is important to remember that the nature of agriculture has changed markedly throughout history, and will continue to do so. Medieval agriculture in northern Europe fed, clothed and sheltered a predominantly rural society with a much lower population density than it is today. It had minimal effect on biodiversity, and any pollution it caused was typically localised. In terms of energy use and the nutrients(营养成分) captured in the product it was relatively inefficient.
Contrast this with farming since the start of the industrial revolution. Competition from overseas led farmers to specialise and increase yields. Throughout this period food became cheaper, safer and more reliable. However, these changes have also led to habitat(栖息地) loss and to diminishing biodiversity.
What’s more demand for animal products in developing countries is growing so fast that meeting it will require an extra 300 million tons of grain a year by 2050. Yet the growth of cities and industry is reducing the amount of water available for agriculture in many regions.
All this means that agriculture in the 21st century will have to be very different from how it was in the 20th. This will require radical thinking. For example, we need to move away from the idea that traditional practices are inevitably more sustainable than new ones. We also need to abandon the notion that agriculture can be "zero impact". The key will be to abandon the rather simple and static measures of sustainability, which centre on the need to maintain production without increasing damage.
Instead we need a more dynamic interpretation, one that looks at the pros and cons (正反两方面)of all the various ways land is used. There are many different ways to measure agricultural performance besides food yield: energy use, environmental (costs, water purity, carbon footprint and biodiversity. It is clear, for example, that the carbon cost of transposing tomatoes from Spain to the UK is less than that of producing them in the UK with additional heating and lighting. But we do not know whether lower carbon footprints will always be better for biodiversity.
What is crucial is recognising that sustainable agriculture is not just about sustainable food production.
What does the author think of traditional farming practices?
选项
A、They have remained the same over the centuries.
B、They have not kept pace with population growth.
C、They are not necessarily sustainable.
D、They are environmentally friendly.
答案
C
解析
本题问“作者如何看待传统的农业方法”。第五段第三句提到“For example,we need to move away from the idea that traditional practices ate inevitably more sustainable than new ones.”即作者认为要摒弃认为传统农业方法要比新方式更具持续性的观念,故C“它们不一定是可持续性的”正确。
转载请注明原文地址:https://kaotiyun.com/show/902O777K
0
考博英语
相关试题推荐
TestshaveconfirmedthatfourpeopleinWisconsincontractedthemonkeypoxvirusaftercomingintoclosecontactwithpetprair
TestshaveconfirmedthatfourpeopleinWisconsincontractedthemonkeypoxvirusaftercomingintoclosecontactwithpetprair
Everychemicalchangeeitherresultsfromenergybeingusedtoproducethechange,orcausesenergytobe______insomeform.
Thereareseveralpossibleexplanationsforthegreaterjob______inJapanincontrasttothegreatjobmobilityintheUnited
Therearethreeseparatesourcesofhazard【1】totheuseofnuclearreactiontosupplyuswithenergy.Firstly,theradioactivem
TheEskimoisperhapsoneofthemosttrustingandconsiderateofallIndiansbutseemstobe______thewelfareofhisanimals.
Threeweeksalterthesuicidebombing,thepolicewerestillhuntingforbombersfortheybelievemorewere______.
AnIndiananthropologist.ChandraThapar,madeastudyofforeigncultures,whichhadcustomssimilarto【1】ofhisnativeland.O
Hydrogeologyisthestudyofwateranditsproperties,includingits____andmovementinandthroughlandareas.
The______inoursoapsshouldcomeonlyfromessentialoils,whicharesteamedorpressedfromplants.
随机试题
牙病防治所张老师带助理执业医师实习组到某小学开展窝沟封闭防龋措施。在临床操作过程中,对于每个操作环节中出现容易出现的问题时,张老师都予以分析和纠正。窝沟封闭的效果评价设计最好用
A.经前诊刮为增生期子宫内膜B.经前诊刮为正常分泌期子宫内膜C.月经第5天诊刮为增生与分泌期子宫内膜D.经前诊刮为分泌不良子宫内膜E.经前诊刮为不典型增生子宫内膜无排卵型功血患者子宫内膜为
下列产后病中,哪些与血瘀无关
某甲自有房屋1间,2000年5月1日与乙签订了一份为期3年的房屋租赁合同,由乙承租该房。同年8月6日丙向甲提出愿意购买该房屋,甲即将要出卖该房屋的情况告知了乙。到了11月7日乙没有任何答复,甲与丙协商以5万元的价格将该房卖给丙,双方签订了房屋买卖合同,丙支
开展项目工程总承包的依据可能包括()。
下列各项中,按现行资源税相关规定从价征收资源税的有()。
如图所示,一质量为m的物块以一定的初速度v0从斜面底端沿斜面向上运动,恰能滑行到斜面顶端。设物块和斜面的动摩擦因数一定,斜面的高度h和底边长度x可独立调节(斜边长随之改变),下列说法错误的是()。
请讨论数量型货币政策工具与价格型货币政策工具各自的特点,以及各自的局限性。目前我国货币政策操作中应该如何有效地使用这两类工具?(中央财经大学2012真题)
Lookatthefollowingnotes.Youwillhearonetelephoneconversation.Foreachquestion16-22,fillinthemissinginformation
Mostofushaveseenadogstaringat,sometimessnarlingat,andapproachingareflectionofitself.Formostanimals,seeingt
最新回复
(
0
)