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
2024-04-15
32
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] 【B8】
选项
答案
break down
解析
此处需要动词充当谓语。短语breakdown的意思是“分解”。
转载请注明原文地址:https://tihaiku.com/zcyy/3556732.html
相关试题推荐
IfthepopulationoftheEarthgeesonincreasingatitspresentrate,there
IfthepopulationoftheEarthgeesonincreasingatitspresentrate,there
IfthepopulationoftheEarthgeesonincreasingatitspresentrate,there
IfthepopulationoftheEarthgeesonincreasingatitspresentrate,there
IfthepopulationoftheEarthgeesonincreasingatitspresentrate,there
IfthepopulationoftheEarthgeesonincreasingatitspresentrate,there
Karaokemayneverbethesame,thankstoresearchbeingpresentedinNashvil
Karaokemayneverbethesame,thankstoresearchbeingpresentedinNashvil
Karaokemayneverbethesame,thankstoresearchbeingpresentedinNashvil
InJanuary1989,theCommunityofEuropeanRailwayspresentedtheirproposal
随机试题
Itisdifficulttogiveadescriptionof【C1】______becausetheyvaryfromstat
AfterWorldWarII,whenalargecollectionofImpressionistpaintingswasm
IwasfeelingdraggedoutsoIwenthome.Theunderlinedpartmeans_______.A、te
Thefilmofthedigitalcamera______.[br]Whatdoyouneedtohaveaslideshow
[originaltext]M:Whatdidyoudotocelebrateyourbirthday?W:Myfriendstook
在余留牙条件正常的情况下,设计双端固定桥,下列哪一种选择是不正确的()A.
金融期货主要包括( )。 Ⅰ货币期货 Ⅱ利率期货 Ⅲ股票期货 Ⅳ股票指
2012年全国国道网车流量较大的地区主要集中在北京、天津、上海、江苏、浙江、广东
在IS曲线不变的情况下,货币供给量减少会引起国民收入( )。A.增加,利率下降
患儿,男,2岁,生后半年发现尿有怪臭味,1岁时发现智力较同龄儿落后,近一个月有惊
最新回复
(
0
)