首页
登录
职称英语
In 1798 the political economist Malthus predicted that in time mankind would
In 1798 the political economist Malthus predicted that in time mankind would
游客
2025-04-20
26
管理
问题
In 1798 the political economist Malthus predicted that in time mankind would face starvation, having outgrown the available food supplies. Today, a century and a half later, there are still experts who forecast the same global disaster unless urgent measures are taken to prevent it.
By the end of the present century there may well be over five thousand million people living on this globe, ail increase of over fifty per cent of today’s figure. In order to keep pace with this increase in mankind the farmers of the world would have to step up their production of food by at least two per cent every year. Such a rate of increase has never been maintained in any country by conventional methods of agriculture, despite modern mechanization and the widespread use of fertilizers. There are no large worthwhile reserves of potential farmland, remaining, and good fertile land is continually being diverted to industrial use. Moreover, erosion of the soil takes a constant toll.
Intensive research, carried out over many years in all manner of climatic conditions, has produced a revolutionary method of growing crops without using any soil at all. Hydroponics, as this technique is called, may well be the answer to all our food worries. Already it has accomplished wonders in producing huge crops. Hydroponics was once a complicated and expensive business; now it is well out of the experimental stage. Labor costs are far lower than when normal methods of agriculture are employed. In fact, it is a completely automatic system. There is no hard manual work, no digging or plowing, and no weeding to speak of. Yields can be far higher than they are in soil. [br] Which of the following best sums up the whole passage?
选项
A、Hydroponics is a new development in agriculture.
B、Malthus’ prediction has been proved to be correct by modern experts.
C、Hydroponics may be the answer to the world food shortage in the future.
D、Conventional methods of agriculture should be improved to step up food production by two per cent every year.
答案
C
解析
文章第一段第一句“In 1798 the political economist Malthus predicted that in time mankind wouldface starvation,having outgrown the available food supplies.”暗含的意思是:人类将面临饥饿危机,所以答案为C。
转载请注明原文地址:https://tihaiku.com/zcyy/4045891.html
相关试题推荐
In1798thepoliticaleconomistMalthuspredictedthatintimemankindwould
In2005,PresidentBushputhispoliticalcapitalwherehismouthwas,andlost.
TheEnglishmanhasbeencalledapoliticalanimal,andhevalueswhatispol
TheEnglishmanhasbeencalledapoliticalanimal,andhevalueswhatispol
Hershrewdcampaignmanagerswereresponsibleforthefactthatherpoliticalsl
Toavoidthevariousfoolishopinionstowhichmankindisprone,nosuperhum
Toavoidthevariousfoolishopinionstowhichmankindisprone,nosuperhum
Toavoidthevariousfoolishopinionstowhichmankindisprone,nosuperhum
Waristhesocialcancerofmankind.Itisaperniciousformofignorance,fori
In2005,PresidentBushputhispoliticalcapitalwherehismouthwas,andlost.
随机试题
Formostofus,thepurposeoftheholidaysistobringpeace,love,andgoo
PASSAGEFOUR[br]AccordingtothePara.2,whatkindsofpeopledoes"expats"r
数学命题教学的意义
洋地黄类药物中毒最重要的临床表现是()。A.室早二联律 B.出现奔马律 C
科学管理学派的核心思想是指导人们用科学理性的思维来进行管理,它的奠基人“科学管理
下列作品中,不属于茅盾创作的是( )。A.《沉沦》 B.《子夜》 C.《白
2007年10月2日,邵某与丁某约定:邵某将100平方米的门面房卖给丁某,房价1
一住店客人未付房钱即想离开旅馆去车站。旅馆服务员揪住他不让走,并打报警电话。客人
适宜的求助者应具备的条件包括()。 A.智力正常 B.人格正常 C.年龄适
关于肠扭转的病因哪项是错误的A、肠系膜过长 B、肠系膜根部附着过窄 C、肠段
最新回复
(
0
)