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
2014-01-13
53
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 uses 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.
The author says that in some hot and dry areas it is advisable to______.
选项
A、build big lakes to store water
B、construct big pumping stations
C、build small and cheap irrigation systems
D、channel water from nearby rivers to cropland
答案
D
解析
细节推断题。根据题干关键词hot and dry areas与原文第四段尾句中的dry tropics对应,据此定位。原文第四段尾句中的gathering rainfall in depressions and pumping it to nearby cropland与选项D对应。故答案为D。
转载请注明原文地址:https://kaotiyun.com/show/mphO777K
0
考博英语
相关试题推荐
Gorillasandchimpanzeespossessarudimentaryspeechcenterwithintheirbrainsthatuntilnowwasthoughttobeuniquetohuma
ItisagreedthatallnationsshouldtakemeasuresagainstterrorismonthebasisoftheUN______andotherinternationallaws.
ForthepeoplewhohavenevertraveledacrosstheAtlanticthevoyageisafantasy.Butforthepeoplewhocrossitfrequentlyo
Watchababybetweensixandninemonthsold,andyouwillobservethebasicconceptofgeometrybeinglearned.Oncethebabyha
Ascientificlawisliableatanytimetoneedmodifying.Thishappenswhenfactisdiscoveredwhichseemsto______whatthela
ToliveintheUnitedStatestodayistogainanappreciationforDahrendorf’sassertionthatsocialchangeexistseverywhere.
Canyouimagine!Heofferedme$5000tobreakmycontractThat’s________.OfcourseIdidn’tagree.Iwouldtakelegalaction.
Believeitornot,opticalillusion(错觉)cancuthighwaycrashes.Japanisacaseinpoint.Ithasreducedautomobilecrashes
A、becauseofB、sinceC、becauseD、thankstoA本题考核的知识点是连词。分析上下句逻辑关系,逻辑是一致的。四个选项都有“因为”的意思,但侧重点不同。A侧重表直接原因;B侧重表“作为……的结果”,后面接句子;C必须加o
AbudgetapprovedbytheEuropeanParliamentfortheEuropeanEconomicCommunitywasdeclaredadoptedTuesdaydespiteopposition
随机试题
我国安全生产方针是:"安全第一、预防为主"。 ()
CT扫描中使用平滑(或软组织)算法,结果是
小蓟饮子的功用是五苓散的功用是
胎盘早剥的病因,以下哪项不多见
关于土方填筑与压实的说法,正确的有()。
只有列入“种类表”的进出口商品,才属于法定检验的商品。()
按月还息、到期一次性还本还款法适用于期限在3年以内(不含3年)的贷款。()
1、4、8、14、24、42、()
对于满足0≤p≤4的一切实数,不等式x2+px>4x+p-3恒成立。(1)x∈(-∞,-1);(2)x∈(3,+∞)。
在“文件包含”预处理语句的使用形式中,当#include后面的文件名用(双引号)括起时,寻找被包含文件的方式是()。
最新回复
(
0
)