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
A、The improvement of agricultural infrastructure. B、The expansion of farmland in developing countries. C、The cooperation of the
A、The improvement of agricultural infrastructure. B、The expansion of farmland in developing countries. C、The cooperation of the
admin
2022-03-24
24
问题
Good morning, class. My topic today is how to feed a hungry world.
The world’s population is expected to grow from 6.8 billion today to 9.1 billion by 2050. Meanwhile, the world’s population more than doubled from 3 billion between 1961 and 2007. Simultaneously, food production has been constrained by a lack of scientific research. Still, the task of feeding the world’s population in 2050 seems "easily possible".
What is needed is a second green revolution. This is an approach that is described as the sustainable growth of global agriculture. Such a revolution will require a wholesale shift of priorities in agricultural research. There is an urgent need for new crop varieties. They must offer higher yields, but use less water, nitrogen-rich fertilizers or other inputs. These new crops must also be more resistant to drought, heat and pests. Equally crucial is lower-tech research into basics such as crop rotation and mixed farming of animals and plants on small farms.
Developing nations could score substantial gains in productivity by making better use of modern technologies and practices. But that requires money. It is estimated that to meet the 2050 challenge, investment must double to $83 billion US dollars a year. Most of that money needs to go towards improving agricultural infrastructure. Everything from production to storage and processing must improve.
However, research agendas need to be focused on the needs of the poorest and most resource-limited countries. It is there that most of the world’s population lives, and it is there that population growth over the next decades will be the greatest. To their credit, the world’s agricultural scientists are embracing such a broad view. In March, for example, they came together at the first Global Conference on Agricultural Research to begin working out how to change research agendas to help meet the needs of farmers in poorer nations. But these plans will not bear fruit unless they get considerably more support from policy-makers.
The growth in public agricultural-research spending peaked in the 1970s and has been shrinking ever since. The big exception is China, where spending has far surpassed other countries over the past decade. China seems set to transition to become the key supplier of relevant science and technology to poorer countries. But developed countries have a humanitarian responsibility, too. Calls by scientists for large increases in the appropriation of funds for public spending on agricultural research are more than justified.
22.What is an urgent need for feeding the world’s population in 2050, according to the speaker?
23.Where should most of the money be invested to feed the ever-growing population?
24.Why does the speaker give credit to the world’s agricultural scientists?
25. What makes China exceptional in comparison with the rest of the world?
选项
A、The improvement of agricultural infrastructure.
B、The expansion of farmland in developing countries.
C、The cooperation of the world’s agricultural scientists.
D、The research on crop rotation in developing countries.
答案
A
解析
讲话中提到,为了迎接2050年的挑战,投资金额必须翻一番,即每年需投入830亿美元。其中的大部分资金需要用于改善农业基础设施。因此,选项A的说法与讲话内容一致,故为正确答案。讲话者在提到“作物轮作”时说,同样重要的是对诸如作物轮作和小型农场动植物混养等基础知识的低端技术研究,但并未点明是哪一类国家才需要,选项D错误。其余两个选项讲话均未体现,可排除。
转载请注明原文地址:https://kaotiyun.com/show/GAx7777K
0
大学英语六级
相关试题推荐
A、Practicinginafriendlyenvironment.B、Writingarticlesonrelevantsubjects.C、Givingmembersthechancetopractice.D、Goin
A、Learninghowtochangemajors.B、Decidingwhichprofessortofollow.C、Learninghowtomanagetime.D、Makingsurehowtolearn
A、Thefactorsthataffectourdecision-making.B、Somewaystodevelopourskillsandtalents.C、Someguidelinesonhuntingpart-
ItstartedwithanitchafterastrollonaCaribbeanbeach,butinjustafewdaysithaddevelopedintoacompletetravel【C1】_
Yourweightaffectshowlongyoulive—butit’sextremelycomplicatedA)Weoftenthinkaboutweightlossintheshortte
Forthispart,youareallowed30minutestowriteanessaybasedonthepicturebelow.Youshouldstartyouressaywithabri
重庆位于中国西南部,长江上游。它是一座举世闻名的山城,最突出的特点是地形起伏有致,立体感强。重庆凭借长江“黄金水道”之便,依托丰富的资源和广阔的市场,从汉代起就是长江上游的工商业重镇,如今更发展成为集重工业、轻工业、贸易等为一体的经济、政治和文化中心。
A、Delegationisatickettoforeigntrade.B、Managersshouldn’tmerelybea"doer".C、Leadershipisabornability.D、Delegation
A、Introducethewomantohisfriends.B、Getfamiliarwiththeuniversitycampus.C、Gotothetenniscourtsforanappointment.D
A、Writinghelpsrelievestress.B、Cancercanbecured.C、Writingimprovestreatment.D、Writershardlyhavecancer.A
随机试题
用白酒浸提药材而得的澄明液体制剂称为
患者,男,28岁,一天前出现疲乏不适,感觉上唇近口角区有痒痛不适,局部烧灼感,不久在这一区域出现成簇的数个小水疱,周围皮肤发红。今晨疱破后糜烂结浅黄色痂,口腔内未见病损。本病的组织病理特点是()
根据《处方药与非处方药分类管理办法(试行)》,关于药品按处方药与非处方药分类管理的说法,正确的是()。
分包人应在工程变更确定后()天内向承包人提出变更分包工程价款的报告,经承包人确认后调整合同价款。
设计概算的()是作为考核工程设计和施工图预算的依据。
防排烟系统中,防火阀、排烟防火阀安装的方向、位置应正确,阀门顺气流方向关闭,防火分区隔墙两侧的防火阀,距墙端面不应大于()。
琅嫒福地记张岱晋太康中,张茂先①为建安从事,游于洞山。缘溪深入,有老人枕书石上卧,茂先坐与论说。视其所枕书,皆蝌蚪文,莫能辨,茂先异之。老人问茂先曰:“君
下列款项中,应在“应收账款”账户进行核算的有()。
公安机关在立案后的侦查过程中,发现犯罪嫌疑人死亡,应作出()决定。
GesturesIntroduction.definition—motionsofthe【T1】________.function—toexpressorhelpexpressthoughtso
最新回复
(
0
)