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
If the population of the Earth goes on increasing at its present rate, there will eventually not be enough resources left to【B1】
If the population of the Earth goes on increasing at its present rate, there will eventually not be enough resources left to【B1】
admin
2015-06-07
37
问题
If the population of the Earth goes on increasing at its present rate, there will eventually not be enough resources left to【B1】______ life on the planet. By the middle of the 21st century, if present 【B2】______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【B3】______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【B4】______,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【B5】______that algae (藻类),organism that can live in【B6】______hot or cold atmospheres and at the same time produce oxygen, should be【B7】______in conditions similar to those on Venus. As soon as this has been done, the algae will be placed in small rockets.Spaceships will then fly to Venus and fire the rockets into the atmosphere. In a fairly short time, the algae will【B8】______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【B9】______of the planet will still be too hot for men to【B10】______it but the rain will eventually fall and in a few years something like Earth will be reproduced on Venus.
【B3】
选项
答案
crowded
解析
此处需要一个形容词作定语修饰conditions。crowded意为“拥挤的”。
转载请注明原文地址:https://kaotiyun.com/show/SGQ7777K
0
大学英语六级
相关试题推荐
Foryears,scientistshavebeenstudyinghowmusicaffectsthebrainanditsfunctions.Classicalmusic,【B1】______songsbyMoza
A、Stayinginbed.B、Stayingoffthetelephone.C、Switchingoffthelights.D、Takingashower.B短文提到,如果闪电时你在家里,请远离电话。选B。
A、Housekeepingservicesarenotincludedinthishotel.B、Nohousekeepingservicescanbeprovidedonweekends.C、Theguestcomp
A、StudymathwithPaul.B、TakePaultoadoctor.C、DiscusstheproblemwithPaul.D、FindPaulastudygroup.C女士说Paul数学考得很差,或许需要
Apioneeringheadteacheriscallingforallsecondaryschoolstofollowhisleadandstartclassesat11am,allowingteenagers
A、Theuniversityregardschemistryasunimportant.B、TheChemistrydepartmentisunder-funded.C、Thereisnotenoughspaceinth
Inthethrillingprogressiveyearsoftheearly20thcentury,fewthingsweremoreattractivethanthepromiseofscientifickno
Usingacomputermayprotectagainstmemorylosslateinlife,【B1】______youalsomakesuretoexercise,anewstudysuggests.In
AccordingtoapapertobepublishedinPsychologicalSciencethishasaninterestingpsychologicaleffect.Agroupofresearche
A、Husbands’salaryisprettyhigh.B、Husbandsaffordthewholepartoftheincome.C、Wivesandhusbandscangetthesamesalary.
随机试题
含氮激素都不可口服。
乳房淋巴液输出的最主要途径是
常温下,皮肤的物理散热速度主要取决于
在我国,()是发行货币的银行。
小斌既想得到高分又不愿意努力学习,这种心理冲突属于趋避式冲突。()
高老师是一名青年教师,在实际教学过程中,为了解教学活动的效果,除学校统一举行的期中和期末考试外,他还会对学生日常学习过程中的表现所取得的成绩以及所反映的情感、态度、策略等方面的发展作出评价,这种评价方式属于()。
随着国民经济的发展,家庭收入不断增加,人们开始探讨投资理财的话题,有些人,尤其是一些年轻人,认为只有百万富翁才需要投资,也有人认为通货膨胀将使得传统意义上的储蓄最终成为竹篮打水的行为。其实,投资理财是每一个寻求正常生活方式的成年人所必须面对的课题。从这段文
设有如下表所列的菜单结构:要求程序运行后,如果单击菜单项“大图标”,则在该菜单项前添加一个“√”。以下正确的事件过程是()。
Mostepisodesofabsent-mindedness--forgettingwhereyouleftsomethingorwonderingwhyyoujustenteredaroom--arecausedby
"EngineeringClass"Whichtwomaterialsareusedinbaseisolators?Clickon2answerchoices.
最新回复
(
0
)