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
39
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] 【B7】
选项
答案
bred
解析
根据空格前的be及句意可知,空格处应填入动词(词组)的过去分词形式构成被动语态。结合录音可填入bred,意为“繁殖”。应注意,单词bred的原形为breed,而过去分词形式只有一个字母e。
转载请注明原文地址:https://tihaiku.com/zcyy/2942030.html
相关试题推荐
Inrecentyears,wehaveallwatchedtheincreasingcommercializationofthe
Inrecentyears,wehaveallwatchedtheincreasingcommercializationofthe
Inrecentyears,wehaveallwatchedtheincreasingcommercializationofthe
Inrecentyears,wehaveallwatchedtheincreasingcommercializationofthe
Inrecentyears,wehaveallwatchedtheincreasingcommercializationofthe
Inrecentyears,wehaveallwatchedtheincreasingcommercializationofthe
[originaltext]Theadvantagesanddisadvantagesofalargepopulationhavel
U.S.collegestudentsareincreasinglyburdenedwithcreditcarddebt,accor
U.S.collegestudentsareincreasinglyburdenedwithcreditcarddebt,accor
U.S.collegestudentsareincreasinglyburdenedwithcreditcarddebt,accor
随机试题
Cricket,althoughlovedbymillionsofpeople,isnotoneoftheeasiestspo
某旅游企业为了获得更大的收益,决定进军家居行业,该企业采取的战略是()。A.相
设x为一个总体且E(x)=k,D(x)=1,X1,X2,…,xn为来自总体的简单
以下水准仪中哪一种型号的精度最高()。A.DS10 B.DS3 C.DS0
根据《普通高中美术课程标准(实验)》,不属于高中美术课程性质的是()。A.理
根据现行《合同法》规定,合同是()。 A平等主体的自然人、法人、其他
某游戏比赛决赛采用BO5赛制,即五局三胜制,根据以往经验,单局比赛R队胜F队的概
期货公司变更住所,应当提交的申请材料包括(??)。A.变更住所申请书 B.
银行承兑汇票的承兑银行,应当按照票面金额向出票人收取()的手续费。A:千分之一
各级政府及其所属部门根据法律、行政法规等规定,为支持某项特定基础设施建设和社会公
最新回复
(
0
)