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
2023-08-20
30
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 trends continue, we will have【B2】_____all the oil that drives our cars, for example. Even if scientists develop new ways of 【B3】_____the human race, the crowded conditions on Earth will make it necessary for us to look for open space somewhere else. But none of the other planets in our【B4】_____ are capable of supporting life at present. One possible solution to the problem has recently been suggested by an American scientist, Prof. Carl Sagan.
Prof. Sagan believes that before the earth’s resources are completely【B5】_____, it will be possible to change the atmosphere of Venus and so create a new world almost as large as Earth itself.
Sagan proposes that algae(藻类), an【B6】_____that can live in extremely 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【B8】_____short time, the algae will【B9】_____the carbon dioxide into oxygen and carbon.
When the algae have done their work, the atmosphere will become cooler. The oxygen will produce rain and in a few years something like Earth will be【B10】_____on Venus. [br] 【B3】
选项
答案
feeding
解析
根据空格前的of及句意可知,空格处应填入动词(词组)的-ing形式。结合录音可填入feeding,意为“喂养”。
转载请注明原文地址:https://tihaiku.com/zcyy/2942026.html
相关试题推荐
[originaltext]SekouCoumbassaisadiplomatwhorepresentsoneofthenewA
当前中小学生普遍存在民族文化艺术鉴赏力(abilitytoappreciatetheartformsrepresentingournati
[originaltext]M:IsthereaneedtocontrolpopulationonlyincountrieslikeI
[originaltext]M:IsthereaneedtocontrolpopulationonlyincountrieslikeI
IfthepopulationoftheEarthgoesonincreasingatitspresentrate,there
IfthepopulationoftheEarthgoesonincreasingatitspresentrate,there
IfthepopulationoftheEarthgoesonincreasingatitspresentrate,there
IfthepopulationoftheEarthgoesonincreasingatitspresentrate,there
IfthepopulationoftheEarthgoesonincreasingatitspresentrate,there
[originaltext]Untilthe20thcentury,mostpaintingswererepresentational.
随机试题
MillionsofAmericansruntothebankorvisitautomatedtellermachineswh
[originaltext]OurcountryishometosomeofthemostbeautifulGod-givenlands
Ifyouwanttolivelongerandlowertheriskofheartdisease,amovetoth
按运输对象分,运输市场可以分为()。A.铁路运输市场和公路运输市场 B.水
在下列情形中,构成承诺的是( )。 A、甲向乙发出要约,丙得知后向甲表示完全
防止血标本溶血,下列哪项是错误的A.避免过度震荡血标本 B.标本应及时送检
站用变的运行电压一般不得超过相应分接头额定电压的()%A.100 B.
按股票所代表的股东权利划分,股票可分为()。A.记名股 B.优先股
某公司是一家大型的跨国公司,长期以来,公司高层在纳才、用才方面均采用了科学的管理
根据物权法律制度理论,下列关于所有权的表述中正确的是()。A.所有权的内容
最新回复
(
0
)