So far no life has been found outside the earth, but while some scientists are actively searching for living things in outer space, others firmly believe there ___. A. mustn’t be B. may not be C. can’t be D. won’t be 请仔细...
So far no life has been found outside the earth, but while some scientists are actively searching for living things in outer space, others firmly believe there . A.mustn’t beB.may not beC.can’t beD.won’t be
So far no life has been found outside the earth, but while some scientists are actively searching for living things in outer space, others firmly believe there ___ . A. mustn’t be B. may not be C. can’t be D. won’t be 查看...
Life has been___ ( 存在、生存) on the earth for millions of years. 相关知识点: 试题来源: 解析 existing 答案:existing.本题考查翻译填空.根据句意和所给汉语提示可知这里使用动词exist意为"存在",使用现在完成进行时has been existing.生命在地球上已经存在了数百万年.本题考查翻译填空,根据句意和给出...
Scientists think that there has been life on the earth for millions of years.However,we haven't found life on other planets yet. The earth is a planet and it goes around the sun.Seven other planets also go around the sun.None of them has an environment with air,so people and things ...
这里确实是应该用单数的. 对于这个句子来说,there has been……是there be 结构,这里用的是has,所以后面跟的一定是单数,所以用的是life的原型. 希望我的回答能够对你有所帮助 有问题可以继续问我 分析总结。 是therebe结构这里用的是has所以后面跟的一定是单数所以用的是life的原型结果...
A. has had B. have had C. has been D. have been 相关知识点: 试题来源: 解析 C 试题分析:句意:科学家们认为生命在月球上存在已经有几百万年了。There be 句型的现在完成时,因为有for millions of,故用has been.故选C。反馈 收藏
ahot ride 热的乘驾[translate] aScientists think that there has been life on Earth for millions of years.However,we haven't found life on other planets yet.Why not? 科学家认为有生活在地球上成千上万几年。然而,我们在其他行星未发现生活。为什么没有?[translate]...
结果一 题目 【题目】Scientists think there has been life on Earthmillions of years ago.A.sinceB.forC.beforeD.after 答案 【解析】A相关推荐 1【题目】Scientists think there has been life on Earthmillions of years ago.A.sinceB.forC.beforeD.after ...
解析 根据we haven't found life on other…"我们还没有在其他…上发现生命"及首字母提示可知,应该是"行星",other修饰planet的复数planets.故答案为:planets. 科学家们认为地球上有生命已经有几百万年了,但是我们还没有在其他行星上发现生命.反馈 收藏 ...