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
2023-07-11
53
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] 【S1】
选项
答案
F
解析
空前的指示代词this 是指一句的“提高粮食产量最简单的方法为扩大耕地”就可断定,这是“简单的,易做的”。
转载请注明原文地址:https://tihaiku.com/zcyy/2826848.html
相关试题推荐
【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
Themen’sWorldCupisconsideredthemostpopularsportingeventinthewor
Themen’sWorldCupisconsideredthemostpopularsportingeventinthewor
Themen’sWorldCupisconsideredthemostpopularsportingeventinthewor
Generouspublicfundingofbasicsciencewould______considerablebenefitsfor
Oceanographyhasbeendefinedas"Theapplicationofallsciencestothestu
Oceanographyhasbeendefinedas"Theapplicationofallsciencestothestu
随机试题
Beingbothspoiledandlazy,he______everyoneelseforhislackofsuccess.A、acc
Thedoctorsaidthatmotherwas(comfort)______afterheroperation.comfortable医
Lookingtoimproveyourlanguageskills,butyoudon’thavethetimetogoo
[originaltext]W:Whatarethemajorchallengesthatyouhavefacedinyourcare
《旧唐书·王起传》说:“贡举猥滥,势门子弟,交相酬酢;寒门俊造,十弃六七。及元稹
题目:《花儿朵朵》 2.内容: (1)自然界中最为争奇斗艳的莫过于鲜花,形
共用题干 患者,女性,45岁。正在单位开会时突感上腹部疼痛、大汗淋漓,120送
下列说法中符合巴甫洛夫关于神经症和精神病的原因的描述的是()。 (A)是大脑
外部环境分析主要包括()。A.宏观环境分析、微观环境分析 B.宏观环境分析、
2014-139.根据《基本农田保护条例》,禁止任何单位和个人在基本农田保护区进
最新回复
(
0
)