There could be life on other planets. A. must B. may C. should D. can 相关知识点: 试题来源: 解析 B。may 和 could 都可以表示不太肯定的推测,这里用 may 更符合语言习惯,“must”表示肯定,“should”表示应该,“can”表示能力或可能性但在这个语境下不如 may 和 could 合适。
Could There Be Life On Other Planets?ion bombardmentGibbsian segregationalloy sputteringThe article informs about an assumption based on the calculation of the author showing the possibilities of life on other planets.do...
Could Humans Live on the Red Planet?For people who are interested in space,nothing is more exciting than the idea of living on other planets.That might be the reason why the movie The Martia(《火星救援》)is so popular.It shows an astronaut trying to live on Mars(火星).But would it be...
In the future, we might be able to travel to other planets. There could be different forms of life there. We might find ___ strange on those planets. A. something B. anything C. nothing D. everything 相关知识点: 试题来源: 解析...
根据第一段中“Exciting new research suggests there could be living things in the clouds above Venus, whose orbit brings it closer to the Earth than any other planets. A study of Venus’ atmosphere shows a type of gas is in its atmosphere.(令人兴奋的新研究表明,金星上空的云层中可能存在生物,...
D.many disasters will happen on the Earth【小题2】Thinking about the future of humans, Hawking feels that ___.A.humans can't live on the earth any longer B.the earth will not be habitable for humans C.other planets are ready for humans to reach D.aliens are the biggest future threat...
根据第一段“Exciting new research suggests there could be living things in the clouds above Venus, whose orbit brings it closer to the Earth than any other planets. …If such creatures are found on Venus, it might be the first evidence of life existing anywhere else in the universe.(令人...
D. Can Humans Live on Venus? 答案 【解析】28∼31 CDAB 结果二 题目 Exciting new research suggests there could be living things in the clouds above Venus, whose orbit brings it closer to the Earth than any other planets. A study of Venus's atmosphere shows a type of gas is in its ...
Humans cannot survive without water, oxygen or food. So far, nobody knows whether there would be enough water or oxygen on Mars for people there. Moreover, scientists are not sure whether plants could grow on Mars. Food would most probably be in the form of pills and would not be so ...
Some people believe that humans could live on the planet Mars by the year 2100.Our own planet,the Earth,is becoming more and more crowded and polluted because of the rapid increase in population.It is hoped that people could start all over again and build a better world on Mars.Here is ...