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
考研
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
2014-11-24
48
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 localized. 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 specialize 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 of transporting 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 recognizing that sustainable agriculture is not just about sustainable food production.
What will agriculture be like in the 21st century?
选项
A、It will go through radical changes.
B、It will supply more animal products.
C、It will abandon traditional farming practices.
D、It will cause zero damage to the environment.
答案
A
解析
推理题。根据题干关键词in the 21st century定位在第五段。该段前两句提到,21世纪的农业将与20世纪时截然不同,这就需要我们有激进变革的思维方式(radical thinking)。由此可推断出21世纪的农业将发生巨大的变化,故A项为正确答案。
转载请注明原文地址:https://kaotiyun.com/show/FrK4777K
0
考研英语一
相关试题推荐
Withthepossibleexceptionofequalrights,perhapsthemost【C1】______issueacrosstheUnitedStatestodayisthedeathpenalty
Withthepossibleexceptionofequalrights,perhapsthemost【C1】______issueacrosstheUnitedStatestodayisthedeathpenalty
Comparisonsweredrawnbetweenthedevelopmentoftelevisioninthe20thcenturyandthediffusionofprintinginthe15thand1
Comparisonsweredrawnbetweenthedevelopmentoftelevisioninthe20thcenturyandthediffusionofprintinginthe15thand1
______hegothome,hewrotealettertome.
Writeanannouncementtoyourschoolmates,informingthemanoff-campusactivityonSeptember18th.Youshouldwriteabout100
GoogleProfileTheactofGooglingoneselfhasbecomethedigitalage’sleadingguiltypleasure—anactivityenjoyedbyalla
Smoking,whichmaybeapleasureforsomepeople,isaserioussourceofdiscomforttotheirfellows.(1)_____,medicalauthorit
Smoking,whichmaybeapleasureforsomepeople,isaserioussourceofdiscomforttotheirfellows.(1)_____,medicalauthorit
随机试题
在劳动资料方面,最能标志生产力发展水平的因素是()
A.口腔B.胃C.空肠D.回肠胆盐的吸收部位
某锅炉操作工人,在一个通风不良条件下,连续工作3~4小时,突然感到头痛,头晕等症状。患者面色潮红,口唇呈樱桃红色。可疑毒物中毒是
某县计量局在对辖区内的加油站进行计量检查时,发现某加油站的加油机存在加油数量短缺现象,遂决定给予罚款2000元的行政处罚。本案可以适用的程序有:( )
不是工程间接费的构成费用是()。
将总体共120个单元随机分为10路纵队(共12排),然后任取其中一排,得到12个样本单元,此抽样方法属于()。
________班会的形式包括:主题报告会、主题汇报会、主题讨论会、科技小制作成果展评会、主题竞赛、主题晚会等。
更改当前数据透视表的数据源为“A8:E9”。
Besidesactiveforeignenterprisesanda【C1】______numberofprivateemployers,aconsequentialnewdevelopmentwasthedevelopme
Ifyoudidn’tknowanybetter,youmightthinkthatStar,Snuppy,CCandANDiwerejustabunchofinterestingnames.You’donly
最新回复
(
0
)