首页
登录
职称英语
[originaltext] The world is not only hungry; it is also thirsty for water. Th
[originaltext] The world is not only hungry; it is also thirsty for water. Th
游客
2024-06-13
56
管理
问题
The world is not only hungry; it is also thirsty for water. This may seem strange to you, since nearly 75% of the earth’s surface is covered with water. But about 97% of this huge amount is sea water, or salt water. People can only drink and use the other 3%--the fresh water that comes from rivers, lakes, underground, and other sources. And we cannot even use all of that, because some of it is in the form of icebergs and glaciers. Even worse, some of it has been polluted.
Our need for water is increasing rapidly. Only if we take steps to deal with this problem now can we avoid a severe worldwide water shortage later on. One useful step we should take is to develop ways of reusing it.
Today, in most large cities, water is used only once. But it is possible to pipe water that has been used to a purifying plant. There it can be filtered and treated with chemicals so that it can be used again just as if it were flesh from a spring.
But even if every large city purified and reused its water, we still would not have enough. Where could we turn next? To the oceans! All we’d have to do to make use of the vast amount of sea water is to remove the salt. This salt-removing process is already in use in many parts of the world. So if we take all these steps, we’ll be in no danger of drying up!
选项
A、People can use nearly 75 percent of it.
B、People can use about 97 percent of it.
C、People can use exactly 3 percent of it.
D、People can use less than 3 percent of it.
答案
D
解析
What percentage of the earth’s water can people actually use?
综合推断题。文章提到People can only drink and use the other 3%,再结合后面提到的we cannot even use all of that可知,由于有的水是以冰山和冰河的形式存在的,还有的水被污染了,所以人类能利用的水实际上不到3%,所以D正确。
转载请注明原文地址:https://tihaiku.com/zcyy/3632001.html
相关试题推荐
[originaltext]W:Goodmorning,Dr.Smith’soffice.MayIhelpyou?M:I’dlike
[originaltext]M:Excuseme,canyoutellmethewaytotheSt.JohnsChurch?W:
[originaltext]M:Didyougotothecinemayesterday,Jane?W:I’dliketo,but
[originaltext]M:Didyougotothecinemayesterday,Jane?W:I’dliketo,but
[originaltext]M:MayIhelpyou?W:Yes,Iwouldliketoreturnthesetrousers.
[originaltext]M:MayIhelpyou?W:Yes,I’dliketosendthislettertomyfam
[originaltext]W:Doesyourbrotherfeelanybettertoday?M:Heismuchbetter
[originaltext]W:Doesyourbrotherfeelanybettertoday?M:Heismuchbetter
[originaltext]W:Doesyourbrotherfeelanybettertoday?M:Heismuchbetter
[originaltext]W:Doesyourbrotherfeelanybettertoday?M:Heismuchbetter
随机试题
Shewasso(worry)______abouthermotherthatshecouldn’tfallasleep.worried
人防地下室防烟楼梯间的门应采用()A.甲级防火门 B.乙级防火门 C.丙
下列各项中,不符合内部牵制的要求的是()。A、出纳人员管票据 B、出纳人员
根据给定材料,下列说法正确的是:() A.2008年房价整体回落 B.图
下列关于规划备案的叙述中,不正确的是( )。A.镇人民政府编制的总体规划,报上
下列原子或离子的外层电子排布式,不正确的是: A.Si3s23p2B.A
商业银行应当定期、及时向董事会和高级管理层报告国别风险情况,包括()。A.国别风
(2017年真题)下列税务处理中,符合个人独资企业所得税相关规定的有()。
爆炸是物质系统的一种极为迅速的物理的或化学的能量释放或转化过程,是系统蕴藏或瞬间
玻璃板隔墙应使用( )。A.磨砂玻璃 B.防火玻璃 C.安全玻璃 D.真
最新回复
(
0
)