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
2016-01-05
70
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 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, safe and more reliable. However, these changes have also led to habitat 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 of all the various way 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
细节题。原文第五段第一句All this means that agriculture in the 21st century will have tobe very different from how it was in the 20th中的different from与A项中changes的转化相对应。只要定位准确,不难选出正确答案。
转载请注明原文地址:https://kaotiyun.com/show/LVsZ777K
0
考研英语一
相关试题推荐
AsAmericamovesintothe21stcentury,thechangingcompositionoftheworkforcewillbecomemoreevidenttoboththegeneralp
GoingonlineisafavoritepastimeformillionsofAmericanchildren.Almost10million(14percent)ofAmerica’s69millionchild
TheInternetbeganinthe1960sasasmallnetworkofacademicandgovernmentcomputersprimarilyinvolvedinresearchfortheU
What’sthebestwaytomakesureakideatsanapple?Askhimifhewantsone.It’sreallythatsimple,accordingtoarecentYa
Inthecourseofalongweekendin1991,thePhilippines’MountPinatubovolcanoinjectedenoughsulfurdioxideintothestratos
Expertshavelongknownthatchildrenimitatemanyofthedeeds—goodandbad—thattheyseeontelevision.Butithasrarelybeen
Parenthoodisn’tacareer-killer.Infact,economistswithtwoormorekidstendtoproducemoreresearch,notless,thantheir
Oneofthebigger,nonpoliticalstoriesofthesummerhasbeenthedecisionbyLanceArmstrongtodrophisfighttoclearhisna
Hechangedthefuturewithouteverwinningavoteorcommandinganarmy.AllAlbertEinsteindidwashavinganidea.It’snota
Itseemstohappenwithdepressingfrequency—sunnyskiesturntorainjustastheweekendarrives.NowSpanishresearcherssayt
随机试题
关于去羟肌苷,下列哪点不正确:
常规心脏扫查过程中,使用率最高的是
患儿,5岁。尿频、尿痛、尿急3天,伴发热、烦躁、口渴。治疗首选
A.用麻黄、薄荷治疗表证B.用猪苓、茯苓治疗水肿、小便不利C.用山茱萸、五味子治疗虚汗、遗精D.用黄芩、板蓝根治疗发热口渴、咽痛E.用附子、干姜治疗腹中冷痛、脉沉无力属于“疗热以寒药”治疗原则的是
生宣渍水渗化,为书画最理想的用纸。()
下列属于纯公共产品的是()。
下列关于我国国情的表述,不正确的是()。
作为东方快讯的首席财务官,你面临两个互斥的项目。上一小题的选择中你忽视了什么?
基于以下描述:有关系模式P(C,S,T,R),根据语义有如下函数依赖集:F={C→T,ST→R,TR→C}。
在窗体上画一个驱动器列表框、一个目录列表框和一个文件列表框,其名称分别为Drive1、Dir1和File1。当改变目录列表框的内容时,要求文件列表框中显示当前选中的文件夹中的内容,则在Dir1_Change事件过程中应使用的语句是______。
最新回复
(
0
)