首页
登录
职称英语
[originaltext] The world is not only hungry; it is also thirsty for water.
[originaltext] The world is not only hungry; it is also thirsty for water.
游客
2024-06-01
11
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、By filtering sea water.
B、By treating sea water with chemicals.
C、By taking salt out of sea water.
D、By drying up sea water.
答案
C
解析
信息明示题。由文章最后可知,要将海水变为淡水必须去除海水中的盐,所以C正确。
转载请注明原文地址:https://tihaiku.com/zcyy/3614738.html
相关试题推荐
[originaltext]M:Whydoyouthinkthatway?W:WhileIadmitthereisverylitt
[originaltext]Ifanyoneaskedyouwhatwerethemainmeansofcommunicatio
[originaltext]Theworldisnotonlyhungry;itisalsothirstyforwater.
[originaltext]Theworldisnotonlyhungry;itisalsothirstyforwater.
[originaltext]M:Hello,Ann.Ihaven’tseenyouinawhile.Whatseemstobeth
[originaltext]M:Hello,Ann.Ihaven’tseenyouinawhile.Whatseemstobeth
[originaltext]M:Hello,Ann.Ihaven’tseenyouinawhile.Whatseemstobeth
[originaltext]W:Goodeveningandwelcometotonight’sprogram,Ourguestisth
[originaltext]W:Goodeveningandwelcometotonight’sprogram,Ourguestisth
[originaltext]M:Didyounoticetheyjustbuiltanothercoffeehouseacrossthe
随机试题
PASSAGETHREEToshownoteveryartifacthaspotentialscientificvalue.题目关键词Cypr
Whenwewantto【C1】______otherpeoplewhatwethink,wecandoitnotonlyw
Wedon’thavebedsinthespacecraft,butwedohavesleepingbags.Duringt
某省HND大桥由中标的CHD公司大桥项目经理部施工,KNS咨询监理公司进行施工监
下列介质访问控制方法中,不可能发生冲突的是()。A.CDMA.B.CSMA.C.
决定导游讲解语音音量大小的因素有( )。A.游客情绪的好坏 B.游客数量的多少
【教学过程】 (一)新课导入 (谈话导入)我们学过很多李白的诗歌,你对李白诗歌印象最深的一点是什么?请几位同学来谈。1.李白属于浪漫主义诗人,他的诗中夸
在教育法规体系中具有最高的法律效力,仅次于宪法的基本法律是()A.《中华人
(2020年真题)(增值税+消费税)甲卷烟厂为增值税一般纳税人,主要生产销售A牌
银行承兑汇票的承兑银行,应当按照票面金额向出票人收取()的手续费。A:千分之一
最新回复
(
0
)