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
29
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:https://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
Whatdoyoudoifyoudon’tgetintoyourfirst-choiceuniversity?This【D1】_
Youshouldspendabout20minutesonQuestions1-14,whicharebasedonReading
A.swallowB.allowC.omittedD.forcedE.urgentlyF.cookedG.refuse
Childrenbelieveparents,andtheyseldom_______________(怀疑父母说的话和做的事是错的).sus
某高层住宅工地,由于进行清理墙面未经施工负责人同意将15层的电梯井预留口防护网拆
负债权益比等于( )。 Ⅰ资产总额/所有者权益总额 Ⅱ负债总额/所有者权益
下列哪项不是慢性淋巴细胞性白血病的特点A.常并发自身免疫性溶血性贫血B.多见于老
房地产经纪机构人力资源管理的特征有( )。A.合法性 B.互惠性 C.战略
根据《公路桥梁和隧道工程施工安全风险评估指南(试行)》的规定,当隧道工程满足(
主控项目检验内容中要用数据说明的包括( )。A.结构的强度 B.结构的刚度
最新回复
(
0
)