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
2013-01-19
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 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 revolutioa 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 21 st 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 is the author’s purpose in writing this passage?
选项
A、To remind people of the need of sustainable development
B、To suggest ways of ensuring sustainable food production.
C、To advance new criteria for measuring farming progress.
D、To urge people to rethink what sustainable agriculture is.
答案
D
解析
本题问“作者的写作目的是什么”。文章最后一段提到“what is crucial is recognising that sustainable agriculture is not just about sustainable food production.”即可持续性农业并非是单纯的可持续性农作物生产,故D“敦促人们重新思考什么是可持续农业发展”正确。
转载请注明原文地址:https://kaotiyun.com/show/DP2O777K
0
考博英语
相关试题推荐
ThemostfamouspainterinVictoria’shistoryisEmilyCarr.Whenshewasachild,shediscoveredthatwalkinginthewoods【1】mo
TheUnitedNationsConferenceonDrugAbuse,whichtookplaceearlierthisyearinVienna,wasavery______meeting.
Youshould______thewheelsofyourbicycleonceamonth.
Inits16years,theLondonMarathonhasacquiredapedigreeofexcellence.Thatexcellenceisnotjusttheawesomeenergyofth
Achievingasustainablelifestyletodayisofparamountimportanceforthehealthoffuturegenerations.Thedevastationofour
MorechangesoccurredinAmericainthelate19thcenturythananyothertimeperiod.Thecountrywentthroughrapidexpansionf
Itisnoteasytowriteafamiliarstyle.Manypeoplemistakeafamiliarforavulgarstyle,andsupposethattowritewithouta
Withsomedifficulty,PalladisdetachedBalintorefromanapparentlyenthrallingdiscussionandguidedhimthroughaturbulentt
Theorganizationhassofarraised$5milliontofinancebone______trans-plantsforchildren.
InatotalofsixstatesinthemiddleofAmerica,15,000assembly-lineworkersare【1】Japanesecarstogether.Theseautoworkers
随机试题
刺激迷走神经时,错误的是
白喉、百口咳、破伤风混合疫苗初种时需
商业银行贷款,应当遵守法律有关资产负债比例管理的规定,其中商业银行的资本充足率不得低于下列哪个比率?
认证是第三方依据程序对()符合规定的要求给予书面保证(合格证书)。
背景资料:某施工单位承担了11层钢筋混凝土框剪结构住宅楼的施工任务。施工单位的资料资对施工资料进行了收集,并对收集的施工资料进行处理、存储、检索、传递、追溯和应用。资料员在对施工资料的管理中,遇到以下问题,试问应如何处理。某施工单位现场资料员在收集了下
《中小学教师职业道德规范》中“爱岗敬业”的内容包括()。
Itisessentialthatthemechanicortechnicianunderstandwellthecharacteristicsofbatterycircuitsandthepropermethodsf
计算机能直接执行的程序是()。
Usingtheinformationinthetext,completeeachsentence14-18withanexpressionfromthelistbelow.Foreachsentence(14
______capitalismhasbeenabolished______itbepossibletoabolishpoverty,unemploymentandwar.
最新回复
(
0
)