首页
登录
职称英语
If the population of the Earth goes on increasing at its present rate, there
If the population of the Earth goes on increasing at its present rate, there
游客
2023-08-21
61
管理
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. [br] 【B9】
选项
答案
surface
解析
空格前有定冠词The,可知这里需要一个名词。surface的意思是“表面”。
转载请注明原文地址:http://tihaiku.com/zcyy/2945861.html
相关试题推荐
Caughtinasqueezebetweenthehealthneedsofagingpopulationsononehan
Caughtinasqueezebetweenthehealthneedsofagingpopulationsononehan
Caughtinasqueezebetweenthehealthneedsofagingpopulationsononehan
Caughtinasqueezebetweenthehealthneedsofagingpopulationsononehan
Caughtinasqueezebetweenthehealthneedsofagingpopulationsononehan
Inmostpartsoftheworld,therelationbetweenpopulationandresourcesis
Inmostpartsoftheworld,therelationbetweenpopulationandresourcesis
Inmostpartsoftheworld,therelationbetweenpopulationandresourcesis
Inmostpartsoftheworld,therelationbetweenpopulationandresourcesis
Inmostpartsoftheworld,therelationbetweenpopulationandresourcesis
随机试题
[originaltext]Atonetime,scientiststhoughtthespacebetweenEarthandSun
根据《房屋建筑与装饰工程工程量计算规范》GB50854—2013规定,有关楼地面
当筛分试验各级过筛不彻底时,计算出的砂的细度模数将会()。A.偏小 B.
下列关于法定公积金的用途,符合我国《公司法》规定的有()。 Ⅰ.
站用交流电源系统运维细则中,重要负荷应采用(____)供电,且接于不同的站用电母
下列选项中,哪些是按行政关系排列的?( )A.县、中心镇、一般镇、行政村 B
遗传对人的身心发展有什么影响?
(2016年真题)期货公司董事长、总经理、首席风险官在失踪、死亡、丧失劳动能力等
突触间隙去甲肾上腺素消除的主要方式是A.被COMT破坏 B.被神经末梢再摄取
按照《生产安全事故报告和调查处理条例》规定,特别重大事故、重大事故逐级上报至国务
最新回复
(
0
)