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 will not have enough food to eat. B、All the oil that drives our cars will be used up. C、The earth will become too crowded.
A、We will not have enough food to eat. B、All the oil that drives our cars will be used up. C、The earth will become too crowded.
admin
2010-08-21
28
问题
If the population of the Earth goes on increasing at its present rate, there will eventually not be enough resources left to sustain life on the planet. By the middle of the 21st century, if present trends continue, we will have used up all the oil that drives our cars, for example. Even if scientists develop new ways of feeding the human race, the crowded conditions on Earth will make it necessary for us to look for open space somewhere else.
An American scientist, Professor Carl Sagan, believes that before the earth’s resources are completely exhausted, it will be possible to change the atmosphere of Venus and so create a new world almost as large as Earth itself. The difficulty is that Venus is much hotter than the Earth and there is only a tiny amount of water there.
Sagan proposes that algae, an organism that can live in extremely hot or cold atmospheres and at the same time produce oxygen, should be bred in conditions similar to those on Venus. As soon as this has been done, the algae will be placed in small rockets. Spaceships will than fly to Venus and fire the rockets into the atmosphere. In a fairly short time, the algae will break down the carbon dioxide into oxygen and carbon.
When the algae have done their work, the atmosphere will become cooler but before man can set foot on Venus, it will be necessary for the oxygen to produce rain. The surface of the planet will still be too hot for men to land on it but the rain will eventually fall and in a few years something like Earth will be reproduced on Venus.
选项
A、We will not have enough food to eat.
B、All the oil that drives our cars will be used up.
C、The earth will become too crowded.
D、There will be little water left on Earth.
答案
D
解析
该题问“下列那句文中没有提到?”文中提到“If the population of the Earth goes on increasing at its present rate, there will eventually not be enough resources left to sustain life on the planet. By the middle of the 21st century, if present trends continue, we will have used up all the oil that drives our cars, for example.”根据原文的信息,我们可以判断,排除A项,D项,C项因此,D项“地球上将不剩多少水”正是没提到的。
转载请注明原文地址:https://kaotiyun.com/show/Ot7K777K
0
大学英语六级
相关试题推荐
ManyAmericansmindlesslyopposehunting.Theydosoevenincaseswhereanimalpopulationsaredangeroushigh.In
Mostpeoplewhotravellongdistancescomplainofjetlag(喷气式飞行时差反应).Jetlagmakesbusinesstravelerslessproductiveandmorepr
TheHistoryofCoca-ColaToday,thecompany’strademarkisworld-famousanditsproductsaverageastaggering400millionse
A、Hewantstoshowtheincreaseoftheemployment.B、Hewantstoshowthepreferenceoftheemployersandemployees.C、Hewants
"ItisdifficultnottohearinStandardEnglishalwaysthesoundofslaughterandconquest"(Hooks,1994).Leaningonelang
Tobesuccessfulinajobinterview,youshould【B1】______certainandprofessional【B2】______.Youneedtocreateagood【B3】___
Tobesuccessfulinajobinterview,youshould【B1】______certainandprofessional【B2】______.Youneedtocreateagood【B3】___
A、$16000.B、$10600.C、$20700.D、$21700.B该题问“在公立大学学生的总费用是多少?”文中提到Itsaystheaveragetotalchargeforstudentswholiveatapub
A、$1.80anhour.B、$18anhour.C、$18aday.D、$80aday.A语意理解题。题目问经理付给LindaBrown的薪金是多少。国外的餐馆工作,特别是兼职性质的,一般都是小时薪酬制并外加小费,而且不会高
Itiswidelyacknowledgedthat_________________________(计算机和因特网已经成为我们生活中必不可少的一部分).
随机试题
polymersolutions
环烯醚萜类难溶于
上消化道大量出血易引起氮质血症,最主要原因是
包某曾因盗窃罪被判处有期徒刑7年,1997年刑满出狱。1999年以后包某先后对王某、彭某、余某、玄某等人传授扒窃方法如怎样解衣扣、怎样搭架子、划包、扒窃时如何进行联系,以及被发现如何逃离等等。这些青年学会扒窃以后,多次进行扒窃活动。包某还将自认天资聪慧的玄
下列各项中,属于结账的一般程序的有()。
地方各级预算按照()的原则编制,除《预算法》另有规定外,不列赤字。
人际交往过程必须以一定的符号系统为交往工具才有可能实现,其主要交往工具是语言符号系统和()
“引锥刺股”和“囊萤苦读”分别指的是()。
Readthetextbelowaboutpresentationtips.Inmostofthelines(34-45),thereisoneextraword.Itiseithergrammaticallyi
A、Getinformation.B、Watchafilm.C、Findabank.D、Buysomeshoes.B推断题。文章提及了购物中心有三层,第三层里有餐馆和电影院,可推断B正确。表转折之处常出考题,因此听到however就要
最新回复
(
0
)