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
Humanity uses a little less than half the water available worldwide. Yet occurrences of shortages and droughts are causing famin
Humanity uses a little less than half the water available worldwide. Yet occurrences of shortages and droughts are causing famin
admin
2020-03-30
41
问题
Humanity uses a little less than half the water available worldwide. Yet occurrences of shortages and droughts are causing famine and distress in some areas, and industrial and agricultural by-products are polluting water supplies. Since the world’s population is expected to double in the next 50 years, many experts think we are on the edge of a widespread water crisis.
But that doesn’t have to be the outcome. Water shortages do not have to trouble the world—if we start valuing water more than we have in the past. Just as we began to appreciate petroleum more after the 1970s oil crises, today we must start looking at water from a fresh economic perspective. We can no longer afford to consider water a virtually free resource of which we can use as much as we like in any way we want.
Instead, for all used except the domestic demand of the poor, governments should price water to reflect its actual value. This means charging a fee for the water itself as well as for the supply costs.
Governments should also protect this resource by providing water in more economically and environmentally sound ways. For example, often the cheapest way to provide irrigation water in the dry tropics is through small-scale projects, such as gathering rainfall in depressions and pumping it to nearby cropland.
No matter what steps governments take to provide water more efficiently, they must change their institutional and legal approaches to water use. Rather than spread control among hundreds or even thousands of local, regional, and national agencies that watch various aspects of water use, countries should set up central authorities to coordinate water policy.
What is the real cause of the potential water crisis?
选项
A、Only half of the world’s water can be used.
B、The world population is increasing faster and faster.
C、Half of the world’s water resources have been seriously polluted.
D、Humanity has not placed sufficient value on water resources.
答案
D
解析
推理题。解题点在第二段。文章提到“Water shortages do not have to trouble the world if we start valuing water more than we have in the past”,由此可以推出,如果人类重视水资源,就不会出现水资源缺乏的危机。所以正确答案是D选项。
转载请注明原文地址:https://kaotiyun.com/show/GTTO777K
0
考博英语
相关试题推荐
Between1833and1837,thepublishersofa"pennypress"provedthatalow-pricedpaper,editedtointerestordinarypeople,cou
Althoughofcoursethereareexceptions,itseemsreasonablyclearthatincertaincountries—Rwanda,Somaliaandpartsofthefo
Manywell-educatedpeopledon’tbelievethat______willendangerfreedomofspeech.
Anenlargedprostatemay______thebladderandpinchofftheurethra,causingpainanddifficultywithurination.
Freemedicalserviceis______tonearlyallthecollegestudentsinChina.(2011年南京师范大学考博试题)
Twotruckswerereportedtohave______head-onyesterday.(2002年武汉大学考博试题)
She______somesaltonherfoodtomakeittastebetter.(2004年上海理工大学考博试题)
Theinvestigationintothefoodsafetyincidentoverdairyproductstaintedwithmelamineis______.
Bythemid-nineteenthcentury,theterm"ice-box"hadenteredtheAmericanlanguage,buticewasstillonlybeginningtoaffect
Thestoredisplayeditsmost______productsinthefrontwindow.(厦门大学2014年试题)
随机试题
作为国家信用的工具是()。
2019年1月1日零时正式退出联合国教科文组织的国家是()
妇科检查室常备药品中,一般不包括的是()
A.眼球内斜B.睁眼困难C.闭眼困难D.伸舌歪斜E.下颌歪斜面神经损害可有()
患者,男性,80岁。因左股骨颈骨折入院10天后出现发热,咳嗽、咳痰、气促。查体:T38℃,呼吸30次/分,R110次/分,神志清,双肺呼吸音粗,双下肺可闻及中等量细湿性啰音,血常规:WBC16×109/L,N89%,L11%。如患者经治疗后病情继续恶化
A.抑制细菌细胞壁合成B.抑制细菌蛋白质合成C.抑制细菌DNA依赖的RNA多聚酶D.抑制细菌二氢叶酸还原酶E.抑制细菌DNA合成β-内酰胺类()
旅行社招徕旅游者组团旅游,因未达到约定人数不能出团的,组团社可以解除合同。但是,境内旅游应当至少提前七日通知旅游者,出境旅游应当至少提前三十日通知旅游者。
Trivialbreachesofregulationswecanpassover,butmoreseriousoneswillhavetobeinvestigated.
ThespeakercomparestheInternetto
AcontroversialnewamendmentbytheAcademyofMotionPictureArtsandSciencesisraisingsomeredflagswithdocumentaryfilm
最新回复
(
0
)