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
2024-04-16
6
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/3558290.html
相关试题推荐
Inrecentyears,wehaveallwatchedtheincreasingcommercializationofthe
Inrecentyears,wehaveallwatchedtheincreasingcommercializationofthe
Inrecentyears,wehaveallwatchedtheincreasingcommercializationofthe
Inrecentyears,wehaveallwatchedtheincreasingcommercializationofthe
Inrecentyears,wehaveallwatchedtheincreasingcommercializationofthe
Inrecentyears,wehaveallwatchedtheincreasingcommercializationofthe
[originaltext]Theadvantagesanddisadvantagesofalargepopulationhavel
[originaltext]Theadvantagesanddisadvantagesofalargepopulationhavel
[originaltext]Theadvantagesanddisadvantagesofalargepopulationhavel
[originaltext]Theadvantagesanddisadvantagesofalargepopulationhavel
随机试题
()“三角”牌餐具饮誉全球。[br]()沟通贸易往来,促进经济合作——天津对外贸易总公司。H
[originaltext]Throughalargeamountofresearch,manyAmericandoctorshav
ImaginethattheSpanish-speakingworldwasasinglecountrywhichiscalled
[originaltext]AUnitedNationsagencyestimatesthat516millionofthewor
静脉全身麻醉的缺点A.操作简单 B.麻醉深浅不易调控 C.对室内空气无污染
传统的药材鉴定方法是A:生物鉴定B:性状鉴定C:理化鉴定D:显微鉴定E:
共用题干 TheStoryteller1StevenSpielberg
药师对自身要求不包括A、爱岗敬业,精益求精 B、认真负责,保证质量 C、诚实
出票人签发的支票金额超过付款时的存款金额的支票为()。A、无效支票 B、可托付
下列关于电梯井的防护措施中,说法正确的是()。A.电梯井首层应设置一层水平安
最新回复
(
0
)