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
Complete the notes below. Write NO MORE THAN TWO WORDS for each answer. Agriculture and Environment (31) productio
Complete the notes below. Write NO MORE THAN TWO WORDS for each answer. Agriculture and Environment (31) productio
admin
2012-01-16
55
问题
Complete the notes below.
Write NO MORE THAN TWO WORDS for each answer.
Agriculture and Environment
(31) production = biggest problem in today’s world
Agriculture is important for jobs, exports and foreign exchange
’Agriculture’ means:
growing crops
raising animals
(32)
(33)
Agriculture must be sustainable: old methods, & new, chemical methods are all unsustainable→ (34) of biodiversity
Biotechnology→GM or GE→ bio-prospecting (bio-piracy) i.e. large companies steal samples of native plants to use the (35) for their own crop improvement
(36) is responsible for less food and higher prices
Farmers need to be educated but governments also need to pay attention to (37) in order to protect the environment and re-nourish the soil
Experts from around the world could come together to form a (38) to observe farm systems aiming to prevent pollution and erosion and encourage safe procedures that are also (39)
Creating the project’s (40) would be very expensive and more money would be needed for the monitoring system but it could solve the problem of food shortages
Welcome to this lecture on Agriculture and the Environment. I hope it is enough to make some of you decide on a career in the field of agricultural science. As you all know, food is a basic human need and producing enough of it is the single greatest challenge facing the modern world.
Developing nations have rapidly expanding populations so agriculture should be central to any development agenda for those countries. What’s more, 75% of people in the developing world are dependant, directly or indirectly, on agriculture for their livelihood. And, for many low-income countries, it’s the most important sector of the economy accounting for 50% of GDP and sometimes it’s the primary, if not only, source of foreign currency. Now, of course, when I talk about ’ agriculture’, I am using the term to encompass more than just growing food crops. Of course livestock farming, fishing and forestry are included. In order to combat wide-scale food shortages agricultural research programmers are underway in many areas. Using science is one way to increase productivity; but, a word of warning: agriculture must also be sustainable. Let’s look at approaches that are not sustainable. Firstly, overgrazing and intensive cropping are two ancient but destructive practices that lead to loss of soil fertility. Secondly, the modem idea of liberal application of chemical pesticides and herbicides has had disastrous consequences for the health of the land, ranging from the pollution of water sources to the destruction of wildlife. These practices have ignored the mechanisms that sustain ecological communities. Ignorance has led to the destruction of the very biodiversity that is essential for sustainable food production. However, introducing new agricultural techniques, especially things like genetic engineering, can be difficult because many people remain suspicious of the fact that plants have had their genetic material modified by scientists.
Biotechnology has also led to the dubious practice of bio-prospecting, or as some prefer to call it, bio-piracy. Foreign multinational companies have been accused of illegally obtaining samples of indigenous plants of other countries in order to get their hands on genetic material to improve the quality or yield of their own crops.
We must put aside the controversy surrounding the field of agricultural biotechnology in order to concentrate on the biggest threat to food production on this planet...which is...? Yes, climate change. The effects of global warming so far have been to shrink the food supply thereby pushing up prices and making, even the most basic necessities, unaffordable.
As I see it, the international community must address this, and other challenges to agricultural production, with urgency. Concrete scientific and technological achievements need to be presented for farmers to evaluate and learn to use but, apart from that, governments need to address the complex issues of policy development if the world’s hungry are to be fed.
Environmental policies need to be put in place to protect ecosystems and correct soil degradation where possible. Countries cannot continue to exploit na~Lral resources whilst ignoring the consequences. In fact, I’d like to see teams of agriculture and environment experts making up a global network which would monitor the world’s farming systems. Different farming systems should be studied not only with a view to analyzing the environmental effects, but the social and economic effects as well. The studies would be carried out with a view to stemming pollution and erosion and promoting safe, cost-effective practices that will guarantee a secure food supply in the future.
Monitoring sites would need to be set up all across the world and data collected in a systematic way. Of course, building the online infrastructure for such a project would cost millions of dollars and there would be ongoing costs involved with the monitoring system but the information gathered would go a long way towards solving the problem of feeding the masses and ensuring millions of people don’t face a hungry future.
选项
答案
fishing
解析
转载请注明原文地址:https://kaotiyun.com/show/stAO777K
本试题收录于:
雅思听力题库雅思(IELTS)分类
0
雅思听力
雅思(IELTS)
相关试题推荐
DisplaysintheAustralianMuseum’sexhibitionondinosaursaredesignedtobetouched,offeringvisitors______experience.
Becausepostmodernistcriticsoftenrelyon(i)______language,theirprosefrequentlyseems(ii)______tononspecialistswhofail
Inaproductionprocessthatiscomplexandoftenunpredictable,rolesthatstartoutdiscretelydefinedmaybecomequite______
Anumberofwriterswhooncegreatly(i)______theliterarycritichaverecentlyrecanted,substituting(ii)______fortheirfor
AdamSmith’sWealthofNations(1776)isstillworthreading,moretoappreciatethecurrent(i)____ofSmith’svalidcontributi
LinguistshavenowconfirmedwhatexperiencedusersofASL-AmericanSignLanguage-havealwaysimplicitlyknown:ASLisagrammat
Discussiontopic:CitiesandCountrysideExamplequestions:•Compareandcontrastlifeincitiesandthecountrysideinyourco
Describeafamilymemberwhoyouadmire.Youshouldsay:whothispersoniswhatthispersonlookslikewhatkindofpersonhe/s
GadgetswithaSportingChanceConsumerelectronics:Newsportsequipment,fromtennisracketstorunningshoes,usesproces
GadgetswithaSportingChanceConsumerelectronics:Newsportsequipment,fromtennisracketstorunningshoes,usesproces
随机试题
一名5岁(CA)儿童,在智力测验中,测得的智龄(MA)是6岁,他的智商应该是()。
治疗脱疽寒湿证,应首选治疗脱疽热毒证,应首选
瑞典学者哈格斯特朗于1953年在其论文《作为空间过程的创新扩散》中首次提出()的问题。
监理人对施工专业分包工程的管理职责有()。
( )不得要求或者标明特定的生产供应者以及含有倾向或者排斥潜在投标人的其他内容。
银行在分析借款企业因固定资产扩张导致借款需求时,可将公司流动资产比上净固定资产所得的比率与同行业相关数据进行比较,能获得很多有价值的信息。()
伤心对于()相当于需求对于()
1999年2月,刘某在香港以84万港币购买了12千克金条。次日上午,刘某携带经过伪装的金条从某海关入境,入境时未向海关申报,企图将黄金偷运往内地销售。经鉴定,该批黄金价值人民币100万元,应缴纳关锐8万元。下列对刘某行为的说法,正确的是()。
设向量组(Ⅰ):b1,…,br能由向量组(Ⅱ):α1,…,αs线性表示为(b1,…,br)=(a1,…,as)K,其中K为s×r矩阵,且向量组(Ⅱ)线性无关。证明向量组(Ⅰ)线性无关的充分必要条件是矩阵K的秩r(K)=r。
WhichofthefollowingdetailsaboutthebillisINCORRECT?
最新回复
(
0
)