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
2023-08-19
42
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] 【B2】
选项
答案
trends
解析
短文谈论的是人口增长的状况,trend的意思是“趋势”,即人口增长的这种趋势。
转载请注明原文地址:https://tihaiku.com/zcyy/2940462.html
相关试题推荐
Thefirsttimeyourbosssuggeststhatyouformallypresentsomethingtoyou
Thefirsttimeyourbosssuggeststhatyouformallypresentsomethingtoyou
Thefirsttimeyourbosssuggeststhatyouformallypresentsomethingtoyou
Thefirsttimeyourbosssuggeststhatyouformallypresentsomethingtoyou
HowMarketersTargetKidsA)Kidsrepresentanimportantdemo
HowMarketersTargetKidsA)Kidsrepresentanimportantdemo
HowMarketersTargetKidsA)Kidsrepresentanimportantdemo
HowMarketersTargetKidsA)Kidsrepresentanimportantdemo
HowMarketersTargetKidsA)Kidsrepresentanimportantdemo
HowMarketersTargetKidsA)Kidsrepresentanimportantdemo
随机试题
Astudyofpeoplewhousedcellphonesforanaverageoflessthanthreeyea
SouthAfricaSafariTopFiveNationalParksandGameReserves[A]ASouth
[originaltext]AgriculturalworkersingreenteafieldsnearMountKenyaare
A.梗死灶发生液化 B.梗死灶地图形 C.梗死灶节段状 D.梗死灶锥体形
当需要确保每一个工作包只有一个明确的责任人而且每一个项目团队成员都非常清楚自己
某销售公司利用电子表格来处理新业务的数据,因为该项新业务适用于以前的电子表格运算
检测沥青喷洒法施工沥青用量试验报告时可不包括洒布沥青用量的逐次测定的值。()
山水园林城市目前来讲是人类理想的居住环境。为什么山水这么重要呢?因为人的本性里面
证券公司从事专项资产管理业务需要通过专门账户经营运作。()
(2016年真题)世界上最重要外汇期货交易所是()。A.伦敦国际金融期货交
最新回复
(
0
)