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、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、P
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、P
admin
2013-05-04
26
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 fresh 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://kaotiyun.com/show/kCB7777K
0
大学英语六级
相关试题推荐
A、Toforgivetheirownmistakes.B、Toforgivetheirfamilymembers.C、Toforgivepeopleolderthanthem.D、Toforgivepeoplewho
Nearlysixyearsafterthesequenceofthehumangenomewassketchedout,onemightassumethatresearchershadworkedoutwhat
A、Dr.Adams’learningstyleisvisual.B、Dr.Adams’learningstyleisauditory.C、Peopleusuallyhavesimilarwaystolearnlang
A、Hewasatthehospital.B、HemetwithPeter.C、Hewasouttomeettheclient.D、HewenttoAustralia.C对话中男士问Michael是否在家,女士回答说
A、She’lldefinitelygetagoodgradebecauseshedidn’tuseInternetsources.B、Shewondershowwellshe’llperformonherpaper
Handsomemenandwomenoftenappeartobeblessedwithluckylives.Nowresearchhasshowntheyareclevererthanmostpeopleas
HowtoDealWithPeerPressure?1.人们往往感受到来自同龄人的巨大压力2.如何解决这种压力3.总结观点
A、Hewenttohisoffice.B、Heturnedonthecomputer.C、Hecheckedhismails.D、Helistenedtotheradio.B选项均为与He有关的完整句子且谓语动词均使
A、Publicbusesarefastandcheap.B、Parkingisbecomingabigproblem.C、Busesandtaxisareeasytofindparking.D、Peoplecan
A、Atadrugstore.B、Atahospital.C、Atadoctor’soffice.D、Atadentist’soffice.AW:Ineedsomeaspirin,please,andI’dal
随机试题
A.传音性耳聋B.感音性耳聋C.高频听力受损D.低频听力受损E.中枢性受损鼓膜穿孔可导致()。
“警示”教育所产生的强化作用属于()。
WhichofthefollowingstatementsisTRUE,accordingtotheauthor?ThenewFordcarsarecitedasanexampletoshowthat____
一般建设工程项目,由( )进行施工过程及竣工后保修期内的沉降观测工作。
下列选项中,属于单边合约的是()。Ⅰ.远期合约Ⅱ.期货合约Ⅲ.期权合约Ⅳ.信用违约互换合约
小王参加公务员录用考试被某机关录用,在试用期内因违反公务员纪律被取消录用,小王不服,他可以采取的正确做法是()。
社会心理学把“一个人做作业无精打采,而几个人一起却兴致勃勃”的现象称为()。
以下正确的叙述是______。
Lookatthestatementsbelowandtheinformationaboutcoursesontheoppositepage.Whichsectionofthearticle(A,B,CorD)
Itisnotthe"somedayIwillwinthelottery"kindofdaydream,butthekindthattapsintothehidden,partofyourbrain.Tha
最新回复
(
0
)