首页
登录
职称英语
If the population of the Earth gees on increasing at its present rate, there
If the population of the Earth gees on increasing at its present rate, there
游客
2024-04-15
6
管理
问题
If the population of the Earth gees 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. [br] 【B10】
选项
答案
land on
解析
此处位于不定式to之后,应填入原形动词。land on表示“乘飞机(船等)到达”。
转载请注明原文地址:https://tihaiku.com/zcyy/3556734.html
相关试题推荐
Inrecentyears,wehaveallwatchedtheincreasingcommercializationofthe
Inrecentyears,wehaveallwatchedtheincreasingcommercializationofthe
[originaltext]Theadvantagesanddisadvantagesofalargepopulationhavel
[originaltext]Theadvantagesanddisadvantagesofalargepopulationhavel
U.S.collegestudentsareincreasinglyburdenedwithcreditcarddebt,accor
U.S.collegestudentsareincreasinglyburdenedwithcreditcarddebt,accor
U.S.collegestudentsareincreasinglyburdenedwithcreditcarddebt,accor
Karaokemayneverbethesame,thankstoresearchbeingpresentedinNashvil
Karaokemayneverbethesame,thankstoresearchbeingpresentedinNashvil
Karaokemayneverbethesame,thankstoresearchbeingpresentedinNashvil
随机试题
A—acceptancelettersJ—referencelettersB—adjustmentlettersK—saleslettersC—
ChicagoPublicSchoolsofficialsaregivingthepublicanearlylookatthe
她像照料孩子一样照看她的花儿。(motherv.)Shemothersherplantsasshedoesherchildren.(本句
[originaltext]W:Goodafternoon,sir!IsthereanythingIcandoforyou?M:Ye
下列选项中,不属于工程形成各阶段对质量的影响的是( )。A.项目评价阶段 B
信息显示与查询功能:控制器信息显示按()及其他状态顺序由高至低排列信息显示等级
下列有关物业承接查验说法错误的是()A.物业承接查验和工程竣工验收是相同的。
(2017年真题)期货交易所上市交易品种,应当经()批准。A.国务院期货监
房地产开发项目产品的具体建筑过程,一般从现场开工到竣工后交付使用为止称()。A:
民用爆破物品是广泛用于矿山爆破、开山辟路、水利工程、地质探矿和爆炸加工等许多工业
最新回复
(
0
)