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
25
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] 【S9】
选项
答案
H
解析
根据并列关系 resistant to change in their methods of cultivation,可是他们很保守。
转载请注明原文地址:https://tihaiku.com/zcyy/3443122.html
相关试题推荐
____________(吃太多的脂肪)cancontributetoheartdisease.Eatingtoomuchfat
MessagetoyoungChineseinthe21stcenturyFundamentalScience
MessagetoyoungChineseinthe21stcenturyFundamentalScience
MessagetoyoungChineseinthe21stcenturyFundamentalScience
MessagetoyoungChineseinthe21stcenturyFundamentalScience
MessagetoyoungChineseinthe21stcenturyFundamentalScience
MessagetoyoungChineseinthe21stcenturyFundamentalScience
Everyoneofusconsidersthecombinationoftheorywithpracticeas______vita
Parents________________(倾其所有)tosendtheirsonstouniversity,butconsidered
Themen’sWorldCupisconsideredthemostpopularsportingeventinthewor
随机试题
HighinthemountainsofsouthernFrance,thesleepytownofAurillachasfe
Anincreasingproportionofourpopulation,unabletolivewithoutadvancedmedi
ASP中Session对象的Session_OnStart事件的处理过程必须放到
当煤矿井下发生水灾时,人员溺水导致呼吸困难而窒息死亡。在进行溺水人员的救治时,所
下列关于分级基金份额的上市交易、申购和赎回的表述,错误的是()。A.仅以子代码
微生物分类的基本单位是()A.属B.型C.种D.株E.群
2020年,全年货物进出口总额321557亿元,比上年增长1.9%。其中,出口1
2009年,某省全年粮食作物播种面积253.85万公顷,比上年增长1.5%
A.1 B.cp C.脉冲信号,频率为时钟脉冲频率的1/2 D.0
企业安全培训的组织实施要明确组织机构制度、人员的职责和要求,下列关于安全培训组织
最新回复
(
0
)