首页
登录
职称英语
Let us consider what science and technology have to contribute to the food p
Let us consider what science and technology have to contribute to the food p
游客
2024-02-12
52
管理
问题
Let us consider what science and technology have to contribute to the food problem.
The simplest way to increase food production, one might suppose, is to bring more land under cultivation and put more people to work on it. Some of the underdeveloped countries have resorted to this【S1】______approach, without notable success. It contains several fallacies. For one thing, it usually means moving into marginal lands where the soil and climatic conditions give a poor【S2】______. Cultivation may quickly deplete this soil, mining it for pasture or forest growth. It is often possible, of course, to turn such lands into useful farms by agricultural【S3】______; for instance, a sophisticated knowledge of how to use the available water through an irrigation system may reclaim semi-arid grasslands for crop-growing. But the cultivation of marginal lands is in any case unsuccessful unlers it is carried out by farmers Mill a centuries—old tradition of experience or by modern experts with a detailed knowledge of the local conditions and the varieties of crops that are suitable for those conditions. Such knowledge is conspicuously absent in the underdeveloped countries.
【S4】______, we know that highly developed countries have not increased the number of acres tinder cultivation, but on the contrary have【S5】______their marginal lands and steadily reduced the proportion of the population engaged in farming. Efficient farming【S6】______concentration on the most efficient lands, and it results in greater production with fewer people. The problem of the underdeveloped countries, then is to increase the【S7】______of their farms and farmers. This would allow them to industrialize and to feed their people more adequately. It is not easy to【S8】______, however. The peasant farmers are【S9】______and resistant to change in their methods of cultivation. The underdeveloped countries are greatly in need of studies and experiments to help them to【S10】______modern agricultural methods to their own conditions.
A)return I)Nevertheless
B)utilize J)mentions
C)Furthermore K)abandon
D)adapt L)accomplish
E)output M)focuses
F)staightforward N)responsible
G)know-how O)productivity
H)conservative [br] 【S7】
选项
答案
O
解析
此处表示增加农业和农夫的生产力。所以应填productivity。
转载请注明原文地址:https://tihaiku.com/zcyy/3443120.html
相关试题推荐
MessagetoyoungChineseinthe21stcenturyFundamentalScience
MessagetoyoungChineseinthe21stcenturyFundamentalScience
MessagetoyoungChineseinthe21stcenturyFundamentalScience
MessagetoyoungChineseinthe21stcenturyFundamentalScience
MessagetoyoungChineseinthe21stcenturyFundamentalScience
Everyoneofusconsidersthecombinationoftheorywithpracticeas______vita
【B1】[br]【B2】A、considersB、alternatesC、rangesD、ranksD词义辨析题。由空格后的leading可知,鼓膜
Themen’sWorldCupisconsideredthemostpopularsportingeventinthewor
Themen’sWorldCupisconsideredthemostpopularsportingeventinthewor
Themen’sWorldCupisconsideredthemostpopularsportingeventinthewor
随机试题
Whatistheman’soccupation?[br][originaltext](Woman)Hello,thisisAnnabell
Automationreferstotheintroductionofelectroniccontrolandautomaticop
WhyisthemanflyingtoBarcelona?[originaltext]W:Excuseme.I’mdoingasurv
Weakeyesightisatermthatisgenerallyusedtorefertonear-sightedeyes
商业银行的审计部门应当定期对市场风险管理体系各个组成部分和环节的准确性、可靠性、
患者女性,50岁,糖尿病病史12年,水肿、蛋白尿2年.血压175/mmHg,血糖
关于急性骨髓炎,以下描述不正确的是A.常见于12岁以下儿童 B.多发生于长骨干
商品是为交换而生产的劳动产品,具有二重性。商品的二重性是指商品具有()。 A
( )的目的是寻求新的和异想天开的解决所面临难题的途径与方法。A.关键事件法
商业银行在风险动态识别、评估的基础上,综合平衡成本与收益对每一个风险点有针对地制
最新回复
(
0
)