首页
登录
职称英语
[originaltext] If you live in a city in North America or Europe, you have pr
[originaltext] If you live in a city in North America or Europe, you have pr
游客
2023-09-09
68
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. (29)They have trouble getting enough clean water tot 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. (30)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. So has the demand for water, for home use, for farming, and for industry. (30)On the other hand, supplies of clean water are disappearing. 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 from underground.
There are enormous amounts of water deep underground in lakes called aquifers. Until recently, scientists believed this groundwater was safe from pollution. Then, in 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, (31) theses chemicals dripped down through the ground and into the aquifer. Once they did, however, the water from that aquifer was no longer drinkable.
选项
A、Pollution problems.
B、Water supplies around the world.
C、An industrial site in Missouri.
D、Groundwater pollution.
答案
B
解析
文中关键句为“They have trouble getting enough clean water for their basic needs. This situation may soon become common all around the. world, scientists believe.”许多地方的居民,他们的水资源可能不能满足基本需要,科学家认为,这种情况是世界普遍现象,纵观全文,主要阐述的是全世界的供水问题。故正确答案为B。
转载请注明原文地址:https://tihaiku.com/zcyy/2999678.html
相关试题推荐
[originaltext]M:IjustfinishedreadingabookofshortstorybyHemlenGarlen
[originaltext]W:Soyouareuptosometennisthisafternoonorwhat?M:Well,
[originaltext]W:Soyouareuptosometennisthisafternoonorwhat?M:Well,
[originaltext]Aperson’ssocialprestigeseemstobedeterminedmainlybyh
[originaltext]Aperson’ssocialprestigeseemstobedeterminedmainlybyh
[originaltext]Aperson’ssocialprestigeseemstobedeterminedmainlybyh
[originaltext]W:SowhatarethetwomaintimesofthedaythatyouwatchTV?
[originaltext]W:SowhatarethetwomaintimesofthedaythatyouwatchTV?
[originaltext]W:SowhatarethetwomaintimesofthedaythatyouwatchTV?
[originaltext]W:Ithinkthereshouldbegreaterrestrictionsplacedonthepre
随机试题
[originaltext]Whenyoustudyabroadandhavethetimeofyourlife,itcan
Forthispart,youareallowed30minutestowriteanewsreporttoyourcampus
StudyActivitiesinUniversityInordertohelpcoll
WhyMoneyDoesn’tBuyHappinessWhatdotheexpertssay?[A
汉代的衡量单位铢,多少铢等于一两A.12B.24C.16D.20E.25
下列关于设备接地引下线导通检查说法正确的是()(A)独立避雷针的检查周期为每年
幼儿看到故事书中的“坏人”,常常会把他抠掉。这是()的表现。 A、情绪冲动
如果投资者非常不看好后市,将50%的资金投资于基础证券,其余50%的资金做空股指
共用题干 一般资料:求助者,男性,36岁,公司职员。案例介绍:求助者由于女儿的
对电力变压器,应装设相应的保护装置的情况有()。A.绕组的匝间短路;B.电压
最新回复
(
0
)