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
The thousands of people forced to abandon their homes in recent weeks to floodwaters are victims not just of nature but of human
The thousands of people forced to abandon their homes in recent weeks to floodwaters are victims not just of nature but of human
admin
2015-05-28
125
问题
The thousands of people forced to abandon their homes in recent weeks to floodwaters are victims not just of nature but of human error as well. Years of mismanagement of the vast Mississippi River ecosystem—the continuous and often inadvisable construction of levees (堤坝) and navigation (导航)channels, the paving over of wetlands, the commercial development of flood plains—have made the damage worse than it might otherwise have been.
The Obama administration is now completing an inspection of the guidelines governing dams, levees and other water-related projects built with federal money.
Historically, projects had been shaped by two main factors: the Army Corps of Engineers’ conviction that nature can be subdued by levees and dams, and its reflexive green-lighting of any flood control project that encouraged commercial or agricultural development. The new rules, Congress said, should require the Corps and other federal agencies to give equal weight to less easily measurable benefits like wildlife habitat and to "nonstructural" solutions to flood control like preserving wetlands, flood plains and other " natural systems. "
To give the Corps its due, it has performed nobly in the present emergency. Its main-stem levees have held. Its decision to blow holes in levees guarding the New Madrid floodway in Missouri clearly saved Cairo, Illinois, and other places downstream. These methods had long been part of Corps emergency plans, and they worked.
The question the environmental community and many in Congress are asking is whether this would have been necessary if the river had been better managed. In populated areas, some levees were built solely to attract more development, while others closed off flood plains that could have acted as a natural safety valve.
Meanwhile, over the years, the upper Mississippi watershed has lost millions of acres of wetlands that could have served as a natural sponge for floodwaters.
So-called 100-year floods seemed to be hitting the Mississippi with scary regularity—a $ 16 billion flood in 1993, a bad one in 2001, another in 2008, and now this one. Climate change, which some suspect of causing violent downpours, may be part of the problem, though the connection is unclear. What is clear is that we should learn from our mistakes, let nature help out where it can, and not build or farm in places where it makes no sense to do so. As the saying goes, nobody ever beats the river.
What function are flood plains supposed to fulfill?
选项
A、Expanding populated areas.
B、Acting as a natural safety valve.
C、Attracting more development.
D、Closing off some levees.
答案
B
解析
本题考查冲积平原本身具有的功能。定位句后半句的定语从句修饰前面的flood plains,由定语从句可知,这些冲积平原原本可以充当一道自然屏障,保护人们不受洪水侵袭,故B“充当自然安全阀门”为答案。A“扩大人口密集地区”和原文意思不符,故排除;C“吸引更多开发”是人们建造堤坝的部分原因,文中已进行了批驳,故排除;D“阻塞一些堤坝”与原文不符,故排除。
转载请注明原文地址:https://kaotiyun.com/show/HUl7777K
0
大学英语四级
相关试题推荐
A、Itcouldhelppeopleofallagestoavoidcancer.B、Itwasmainlymeantforcancerpatients.C、Itmightappealmoretoviewers
A、Tryanotherhotel.B、Stayatthehotel.C、Talktothemanager.D、Paythecancellationfee.B推理判断题。对话结尾处男士表示他受够了,要到对面那家旅馆住,而女士说
A、Themandrinkstoomuch.B、Themanlosthisjob.C、Thewoman’sfatheraskedhertodoso.D、Themanbrokeupwithhisgirlfrie
Volumeshavebeenwrittenabouttechnology’sabilitytoconnectpeople.Butburyingone’snoseinabookhasalwaysbeensomewha
Volumeshavebeenwrittenabouttechnology’sabilitytoconnectpeople.Butburyingone’snoseinabookhasalwaysbeensomewha
HowStressedParentsAffectTheirKidsA)Whenitcomestofindingculpritsforeverythingthat’swrongwithusaschildrenande
Ifyou’vebeenfollowingthestatusofArcticseaiceforthepastfewyears,hearingscientists【C1】______thepotentialcomingo
最近二十年来.旅游业在世界各地迅速发展,现在正受到中国公众越来越多的关注。许多人给报纸写信,就促进中国旅游业的发展提出了各种建议。人们认为,发展旅游业有助于促进中国与世界其他国家间的相互了解,增进彼此间的友谊,并将有利于文化和科技交流。此外,发展旅游业还能
A、Becausetheyarekeptawayfromdangersthathappenedbefore.B、Becausetheyhavelearnedhowtoovercometheparticulardange
Moreandmoreforeignstudentsexperiencetheirindependentlifeinthequesttogainawesterneducation.They【B1】______anunfa
随机试题
电动机从电源吸收无功功率,产生的是()。
可见于躁狂发作的是()
简述质量改进的工作流程。
一旅游公司经理在总体市场不景气的情况下,以独特的眼光发现了一惊险性旅游项目并设计了具有针对性的旅游线路且进行了前期宣传。因涉及与相关部门的协调,新项目得到正式批准的时间比预期整整晚了一年,由此丧失了大量的市场机会。你认为下列哪种说法最能概括该经理的管理技能
A、桃仁、酸枣仁B、熟地黄、黄精C、冰片、马钱子、蟾酥D、朱砂、珍珠E、乳香、没药采用“水飞法”粉碎
A.15日前B.30日前C.3个月D.6个月《药品经营许可证》的许可事项发生变更的,提出变更登记申请期限为许可事项发生变更
假设圆管流动的临界雷诺数Rek=2300,今有15℃的水在内径d=20mm的圆管中以流速v=0.8m/s在管中流动,则管中水流的流动是什么流态,如管内保持层流状态,其最大的流速是多少,正确的答案是()。
下列各项预算中,通常可以直接参加现金预算的汇总,而不需要另外预计现金支出的是()。
提高自主创新能力,建立技术创新体系,其基本体制架构是( )。
请使用VC6或使用【答题】菜单打开考生文件夹proj1下的工程proj1,该工程中包含程序文件main.cpp,其中有类Door(“门”)和主函数main的定义。程序中位于每个“//ERROR****found****”之后的一行语句有错误,请加以改正。改
最新回复
(
0
)