首页
登录
职称英语
The thousands of people forced to abandon their homes in recent weeks to flo
The thousands of people forced to abandon their homes in recent weeks to flo
游客
2023-07-04
26
管理
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. [br] What can we learn from the last paragraph about climate change?
选项
A、It has nothing to do with the violent downpours and floods.
B、It is the main cause of the violent downpours and floods.
C、It has been proved to be related to violent downpours and floods.
D、It may be part of the reason causing violent downpours and floods.
答案
D
解析
定位句指出,一些人怀疑气候变化是造成暴雨的原因,当然,尽管二者之间的联系并不那么清楚,它也确实可能是造成洪水的部分原因。由此推断D“它可能是造成暴雨和洪水的部分原因”为答案。A“它和暴雨及洪水没有关系”、B“它是造成暴雨及洪水的主要原因”和C“它已被证明和暴雨及洪水有关”均不符合原文意思,故排除。
转载请注明原文地址:https://tihaiku.com/zcyy/2807379.html
相关试题推荐
Volumeshavebeenwrittenabouttechnology’sabilitytoconnectpeople.But
Volumeshavebeenwrittenabouttechnology’sabilitytoconnectpeople.But
Volumeshavebeenwrittenabouttechnology’sabilitytoconnectpeople.But
Volumeshavebeenwrittenabouttechnology’sabilitytoconnectpeople.But
[originaltext]Mostpeoplefeellonelysometimes,butitusuallyonlylasts
Youprobablyhavenoticedthatpeopleexpresssimilarideasindifferentway
Youprobablyhavenoticedthatpeopleexpresssimilarideasindifferentway
Youprobablyhavenoticedthatpeopleexpresssimilarideasindifferentway
Youprobablyhavenoticedthatpeopleexpresssimilarideasindifferentway
Youprobablyhavenoticedthatpeopleexpresssimilarideasindifferentway
随机试题
Welookforwardtothedaywhenthecarwillbereplacedbysomelessdangerous_
[originaltext]Asresearcherslearnmoreabouthowchildren’sintelligenced
舞龙(thedragondance)广受全国各民族人民的喜爱。早在商代(theShangDynasty),就已经出现了人们聚在一起祭龙求雨的记载
Dg'(x)计算。
网络配置如图所示,其中使用了一台路由器、一台交换机和一台集线器,对于这种配置,下
寒邪致病,症见肢体屈伸不利,是由于()A.寒性凝滞,痹阻经脉 B.寒客肌
血气分析仪直接测定的三项指标是A.pH、PCO、TCOB.pH、PO、SaOC.
下列关于工程造价控制主要方法的表述中,不正确的是( )。A.限额设计并不是一味考
每当事故灾难事件应急处置工作结束后,当地政府都应当及时组织和协调有关部门,理顺工
开盘价是当日某一期货合约的交易开始前10分钟经集合竞价产生的成交价格。()
最新回复
(
0
)