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
Let us consider what science and technology have to contribute to the food problem. The simplest way to increase food produc
Let us consider what science and technology have to contribute to the food problem. The simplest way to increase food produc
admin
2013-06-17
36
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
【S3】
选项
答案
G
解析
此处应选填一个名词。要使荒地变成有用的农场,只有通过农业技术。
转载请注明原文地址:https://kaotiyun.com/show/GQ07777K
0
大学英语四级
相关试题推荐
LearntoloveyourjobAreyoufamiliarwithkudzu—aprolificvinethatwrapsitselfaroundothervegetation,stranglingthe
Distancelearninghasmovedfarawayfromthetraditionalcorrespondencecourse,aimedattheindividualstudentworking【S1】____
Asksomeonewhattheyhavedonetohelptheenvironmentrecentlyandtheywillalmostcertainlymentionrecycling.Recyclingin
QuickChangeinStrategyforaBooksellerInthemovieYou’veGotMail,TomHanksplayedtheaggressivebig-boxretailerJo
Bysaying"royalweddingfever"(Para.1),theauthormeans"______".ThedifficultyforLetiziatofitintheroyallifemaylie
A、Theytriumphedultimatelyoverevilinthebattle.B、TheyplayedthesameroleinWaroftheWorlds.C、Theyarepopularfigure
claimedthathewasinnocent/claimedtobeinnocent
A、Heisusedtothecoldweather.B、Heexpectedtheweathertobewarmer.C、HehasneverlikedtheweatherinApril.D、Hedidn’t
A、Whenthewarmerairmeetswiththecoolerair.B、Whenthewindmovesfasterthan30metersasecond.C、Whentheseawaterevapo
随机试题
药物经济学的主要任务是
患者,男,45岁。低热,午后热甚,胸闷,周身困重,纳呆脘痞,口干不欲饮,呕恶,大便黏滞不爽,舌苔黄腻,脉濡数。其中医诊断为
其直者,从巅入络脑人脑,上巅,循额,至鼻柱
某患者,突然发生寒战、高热、咳嗽、咳痰,痰呈砖红色胶冻状,最可能感染的病原菌是()
甲、乙因合同纠纷申请仲裁,甲、乙各选定一名仲裁员,首席仲裁员由甲、乙共同选定。仲裁庭合议时产生了三种不同意见,仲裁庭应当()作出裁决。
下列各项中,契税的计税依据可由征收机关核定的是()。
从所给的四个选项中,选择最合适的一个填入问号处,使之呈现一定的规律性:
A、Itisansimpleexplosive.B、Itisamilitaryexplosive.C、ItismadeinU.S.factories.D、Itcanbeeasilymadeindoors.D
Undermorefavorableconditions,he______agreatgeneralbutheonlyendedupascaptain.
Expertsinthefoodindustryarethinkingalotabouttrashthesedays.Restaurants,colleges,hospitalsandotherinstitutions
最新回复
(
0
)