首页
登录
职称英语
If you live in a city in North America or Europe, you have probably never t
If you live in a city in North America or Europe, you have probably never t
游客
2024-05-07
37
管理
问题
If you live in a city in North America or Europe, you have probably never thought much about water. Whenever you need some, you turn on the tap and there it is. Millions of people in other parts of the world are not so lucky. They have trouble getting enough clean water for their basic needs. This situation may soon become common all around the world, scientists believe. In fact, they say that the lack of clean water may be one of the biggest issues in the twenty-first century.
The reasons for this are clear. On the one hand. people are using more water than ever before. Over the last fifty years, the population of the world has more than doubled. On the other hand, many sources of surface water such as rivers, lakes, and streams are too polluted and unhealthy for use as drinking water.
This has forced more and more people to drill wells so they can get water form underground. There are enormous amounts of water deep underground in lakes called aquifers. Until recently, scientists believed this underground water was safe from pollution. Then, in the 1980s. people in the United States began to find chemicals in their well water, and scientists took a closer look at what was happening. Weldon Spring, Missouri, for example, was the site of a bomb factory during World War Ⅱ. The factory was destroyed after the war. but poisonous chemicals remained on the ground. Very slowly, these chemicals dripped down through the ground and into the aquifer. Once they did, however, the water form that aquifer was no longer drinkable.
It probably never will be drinkable again, Underground water is not renewed regularly by the rain, like lake or river water. Thus, if a harmful chemical gets into an aquifer, it will stay there for a very long time. Furthermore, it is nearly imp6ssible to remove all the water in an aquifer and clean out the pollutants.
Industrial sites like Weldon Spring are one cause of underground water pollution. There are thousands of such sites in the United States alone, and many others around the world. Underground water pollution is also caused by modern farming methods, which require the use of large amounts of chemicals in the fields. And finally, yet another important cause of underground water pollution is waste. That includes solid waste thrown away in dumps and landfills, and also untreated human and animal waste.
The situation is indeed very serious. Fortunately, there are many aquifers and they are very large. Only a small number have been seriously damaged so far. But if the world does not want to go thirsty in the near future, further pollution must be prevented. Around the world, governments must make real changes in industry, agriculture, and waste disposal. [br] In the first paragraph scientists express the idea that ______.
选项
A、clean water is no longer available for people in Europe
B、there will always be enough water for everyone
C、the water problem will soon be resolved in the twenty-first century
D、many more people may soon. be without clean water
答案
D
解析
细节推断题。请看上下文“They have trouble getting enough clean water for their basic needs.This situation may soon become common all around the world,...lack of clean water may be one of the biggest issues in the twenty-first century”,由此可推断将有越来越多的人喝不上、用不上干净的水,故正确答案D项。
转载请注明原文地址:http://tihaiku.com/zcyy/3587507.html
相关试题推荐
IfyouliveinacityinNorthAmericaorEurope,youhaveprobablynevert
IfyouliveinacityinNorthAmericaorEurope,youhaveprobablynevert
IfyouliveinacityinNorthAmericaorEurope,youhaveprobablynevert
Crowsareprobablythemostfrequentlymetandeasilyidentifiablememberso
OnDecember25,2000,manypeopleacrossNorthAmericareceivedarareChrist
AproposedRussianbanonEuropeanUnionmeatexportscouldjeopardizeRussi
AproposedRussianbanonEuropeanUnionmeatexportscouldjeopardizeRussi
AproposedRussianbanonEuropeanUnionmeatexportscouldjeopardizeRussi
AproposedRussianbanonEuropeanUnionmeatexportscouldjeopardizeRussi
[originaltext]PublictelevisioninAmericagrewoutofthemanylocalstat
随机试题
A.mentallyB.standC.assistD.complexE.shelterF
孔乙己是这样的使人快活,可是没有他,别人也便这么过。有一天,大约是中秋前的两三天,掌柜正在慢慢地结账,取下粉板,忽然说,“孔乙己长久没有来了。还欠十九个钱呢!
下列不属于对于消火栓打开时无水的维修方法的是()。A.检修井闸阀保持常开 B
公文处理工作主要由()环节组成。A.公文拟制 B.公文办理 C.公文管理
A.艾司洛尔 B.利多卡因 C.佩尔地平 D.氨茶碱 E.氢化可的松男,
小建中汤中饴糖的作用不包括A.健脾益气 B.补养脾阴 C.柔肝缓急 D.润
Thechangeinthatvillagewasmiraculou
各种运输方式内外部的各个方面的构成和联系,就是( )。 A.运输系统
一般资料:求助者,男性,17岁,高中三年级学生。 求助者自述:我考高中时按照父
某企业与其关联方企业未按照独立企业之间业务往来支付价款费用的,税务机关有权调整,
最新回复
(
0
)