首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
A、We can invent ways of increasing rainfall. B、We can develop ways of reusing water and utilizing sea water. C、We can cut down o
A、We can invent ways of increasing rainfall. B、We can develop ways of reusing water and utilizing sea water. C、We can cut down o
admin
2010-09-25
32
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、We can invent ways of increasing rainfall.
B、We can develop ways of reusing water and utilizing sea water.
C、We can cut down our consumption of water.
D、We can reduce the number of factories producing steel.
答案
B
解析
综合推断题。由文章第二段提到的One useful step we should take is to develop ways of reusing it和文章最后讲的利用海水资源可知,B正确。
转载请注明原文地址:https://kaotiyun.com/show/I8z7777K
0
大学英语六级
相关试题推荐
Onhearingthenews,I______(忍不住笑起来)andspreaditamongtheclass.
Stressmaybedefinedastheresponseofthebodytoanydemand.Wheneverpeopleexperiencesomethingpleasantorunpleasant,we
Truancy(逃学)sweepsaroundBritainrecentlyrevealedthousandsofchildrenmissedschool—andturnedupsomeridiculousexcuses,
Itwasnotuntiltheendofthe20thcenturythat__________________(我们才重视环境问题).
A、Tokeepthespace.B、Togiveuptheroom.C、Togetintotheauditorium.D、Toreservetheroom.D
TheGeodesicDome(圆顶屋)--theHouseoftheFuture?R.BuckminsterFullerspentmuchoftheearly20thCenturylookingforway
A、Hehastoworktonight.B、Heseldomgoestoparties.C、Hewillprobablymisstheparty.D、Hedoesn’tenjoyJim’sparty.C短语up
Whenyoustarttalkingaboutgoodandhadmannersyouimmediatelystartmeetingdifficulties.Manypeoplejustcannotagreewhat
TheestablishmentoftheThirdReichinfluencedeventsinAmericanhistorybystartingachainofevents,whichculminatedinwa
随机试题
A.甲状腺激素B.甲状旁腺激素C.生长激素D.胰岛素E.雄激素对红细胞生成具有直接和间接调节作用的是
()的特点是单价是确定的,工程量是可变的。
某生产经营单位的市场部门正在开展合格供应商的选择评价。按照《职业健康安全管理体系》(OHSAS18001)的运行模式,该项工作属于体系运行的()阶段。
深基坑开挖采用放坡无法保证施工安全或现场无放坡条件时,一般采用( )作为临时支挡以保证基坑的土壁稳定。
某轮从广州港装载杂货———人造纤维,体积为20立方米、毛重为17.8公吨,运往欧洲某港口,托运人要求选择卸货Rotterdam或Hamburg,Rotterdam和Hamburg都是基本港口,基本运费率为USD80.0/FT,三个以内选卸港的附加费率为每运
商业银行的流动性覆盖率应当不高于100%。()
某企业拟投资建造一条生产线,原始投资额200万元,投资项目寿命期3年,当年投产并产生效益,3年中每年的销售收入为180万元,销货成本为120万元,其中折旧为20万元(不考虑所得税)。
2016年6月9日,甲公司支付价款855万元(含交易费用5万元)购入乙公司股票100万股,占乙公司有表决权股份的1.5%,作为可供出售金融资产核算。2016年12月31日,该股票市场价格为每股9元。2017年2月5日,乙公司宣告发放现金股利1000万元。2
如图,AD⊥BC,CE⊥AB,垂足为D、E,CE、AD交于H,AE=4,EH=EB=3,问CH长为:
最近几年,无需火电的即热型快餐备受人们欢迎。这种即热型快餐一般由两层铝箔(锡箔)制包装构成,内层用于盛放需加热的食物,外层用于盛放加热材料。据此,下列最可能成为这种快餐加热材料的是:
最新回复
(
0
)