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
A、People in high rainfall countries feel lucky. B、Much of the world’s water is available for use. C、The costs of water redistrib
A、People in high rainfall countries feel lucky. B、Much of the world’s water is available for use. C、The costs of water redistrib
admin
2013-06-03
24
问题
The need to feed a growing population is putting much pressure on the world’s supply of water. With 97% of the world’s water too salty to be drunk or used in agriculture, the worldwide supply of water needs careful management, especially in agriculture. Although the idea of a water shortage seems strange to someone fortunate enough to live in a high rainfall country, many of the world’s agricultural industries experience constant water shortages.
Although dams can be built to store water for agricultural use in dry areas and dry seasons, the costs of water redistribution are very high. Not only is there the cost of the engineering itself, but there is also an environmental cost to be considered. Where valleys are flooded to create dams, houses are lost and wildlife homes destroyed. Besides, water may flow easily through pipes to fields, but it cannot be transported from one side of the world to the other. Each country must therefore rely on the management of its own water to supply its farming requirements.
This is particularly troubling for countries with agricultural industries in areas dependent on irrigation. In Texas, farmers’ overuse of irrigation water resulted in a 25% reduction of the water stores. In the Central Valley area of southeastern USA, a huge water engineering project provided water for farming in dry valleys, but much of the water use has been poorly managed.
Saudi Arabia’s attempts to grow wheat in desert areas have been the pumping of huge quantities of irrigation water from underground reserves. Because there is no rainfall in these areas, such reserves can only decrease, and it is believed that fifty years of pumping will see them run dry.
Questions 32 to 35 are based on the passage you have just heard.
32. What is the passage mainly about?
33. What do we learn from the passage?
34. What can be learned from the passage?
35. What is most likely to be discussed next?
选项
A、People in high rainfall countries feel lucky.
B、Much of the world’s water is available for use.
C、The costs of water redistribution should be considered.
D、Water can be easily carried through pipes across the world.
答案
C
解析
选项中的high rainfall,water,available,costs,redistribution等表明,本题考查水的分布、调度等情况。短文中提到,the costs of water redistribution are very high.Not only is there the cost of the engineering itself,but there is also an environmentaI cost to be considered,即调度水资源的成本非常高,应该引起重视,故答案为[C]。
转载请注明原文地址:https://kaotiyun.com/show/FYg7777K
0
大学英语四级
相关试题推荐
Asunflowerisasunflower.Amobilephoneisamobilephone.Butcanyou【S1】thetwotodosomethingforyourlocal【S2】?Itmay
Privatedoesnotmean【B1】______.Butitdoesmean【B2】______.PublicschoolsintheUSarepaidforbymoneyfromeveryone;pri
A、Heisasafeguard.B、Heisapoliceman.C、Heisthewoman’shusband.D、Heisthemanagerofthesupermarket.BWhoistheman?
TherewasatimewhenredmeatwasaluxuryforordinaryAmericans,orwasatleastsomethingspecial:cookingaroastforSunda
TherewasatimewhenredmeatwasaluxuryforordinaryAmericans,orwasatleastsomethingspecial:cookingaroastforSunda
Fromchildhoodtooldage,wealluselanguageasameansofbroadeningourknowledgeofourselvesandtheworldaboutus.When
Itisimportantthattheteacher______(确保所有的学生都在试卷上签名).
【C1】______hundredsofyears,artistshavebeencraftingbeautifulteapotstobrewjusttheright【C2】______oftea.TheYixing
Bloodcarriesoxygenfromthelungstoalltheothertissuesinthebodyand,inturn,carrieswasteproducts,predominantlycar
YouthofToday--Nosavings,nopension,hugedebts--Leavingschooloruniversitymeansfinancialindependence--bu
随机试题
在Excel2003中,如果筛选条件涉及多个字段的“或”运算,那么通过自动筛选无法实现,只能使用高级筛选。()
阳和汤的药物组成中不包括
对于传入侧支性抑制的描述,恰当的是
小儿乳牙出齐的年龄为
十枣汤中大枣的配伍意义不包括
北京犬,8岁。10kg,不愿活动,呼吸困难,黏膜发绀。心电图Ⅱ导联显示:P波0.08秒,P波呈双峰或有切迹。心电图诊断提示()
企业制定薪酬管理制度时,要考虑的基本因素有()。
长期的不透明,耗损着慈善组织的信誉,更伤害了公众的公益热情。最近曝出的几个事件显示出公益与社会的“对立困局”:一边是公众权利意识的提升,另一边却是慈善组织公开透明的缺席;一边是社会慈善需求的扩大,另一边却是公众不信任感的增加。这段文字的中心议题是(
DEVELOPMENTSINTHECONSTRUCTIONOFTALLBUILDINGS1Untilthenineteenthcentury,mosttallbuildingswereconstructedofloa
A、Thewomanwilltakethetest.B、Thewomanwillnottakethetest.C、Thewomanwilltakeadelayedtest.D、Thetesthasbeenca
最新回复
(
0
)