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
65
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
Womenwhoapplyforjobsinmiddleorseniormanagementhaveahighersucces
[originaltext]M:Hi,Janet,wherewereyouatlunchtime?Iwassavingaseatf
某市某歌舞厅由王某个人承包,经该市某区公安分局核准定员140人。歌舞厅在重新装修
在工农业生产中常见的化学性窒息性气体有A.CO、CO B.硫化氰、甲烷 C.
Atwhatstageofalessonisateacherl
患者,女,40岁,痢下赤白黏冻,白多赤少,腹痛,里急后重,饮食乏味,中脘饱闷,头
一住店客人未付房钱即想离开旅馆去车站。旅馆服务员揪住他不让走,并打报警电话。客人
甲烟草公司提供烟叶委托乙公司加工一批烟丝。甲公司将已收回烟丝中的一部分用于生产卷
空调按空气处理设备的设置情况分类,属于半集中式系统的是( )。A.单风管系统
下列机械设备中,不属于施工机械设备的是()。A.操作工具 B.测量仪器 C.
最新回复
(
0
)