英语翻译Since early times,people have been fascinated with the i

英语翻译
Since early times,people have been fascinated with the idea of life existing somewhere else besides earth.Until recently,scientists believe that life on other planets was just a hopeful dream.But now they are beginning to locate places where life could form.In 1997,they saw evidence of planets near other stars like the sun.But scientists now think that life could be even nearer in our own solar system.One place scientists are studying very closely is Europa,a moon of Jupiter.Space probes have provided evidence that Europa has a large ocean under its surface.The probes have also made scientists think that under its surface Europa has a rocky core giving off volcanic heat.Water and heat from volcanic activity are two basic conditions needed for life to form.A third is certain basic chemicals such as carbon,oxygen and nitrogen.Scientists believe there might be such chemicals lying at the bottom of Europa’s ocean.They may have already created life or may be about to.You may wonder if light is also needed for life to form.Until recently,scientists thought that light was essential.But now,places have been found on earth that are in total blackness such as caves several miles beneath the surface.And bacteria,primitive forms of life,have been seen there.So the lack of light in Europa’s sub-surface ocean doesn’t automatically rule out life forming.
这是去年12月四级英语听力一段原文

自从早期,人们一直迷恋的想法到别的地方去地球以外存在生命.直到最近,科学家们相信,生活在一个充满希望其他行星只不过是梦想.但是现在他们开始的地方可以找到生命形式.1997年,他们看到其他恒星附近的行星的证据,就像太阳.但是科学家们现在认为生命可能会更接近于我们的太阳系.一个地方的科学家们正在研究非常紧密,是欧洲,一个月亮的木星.太空探索器提供了证据表明欧罗巴表面下大海洋.探头也让科学家们认为,在其表面欧罗巴岩石核心散发出火山热.水和热量从两个基本条件的火山活动所需生命形成.第三个是一些基本的化学物质,如碳、氧和氮.科学家们认为可能有这样的化学品躺在欧洲的海洋.他们可能已经创造了生命或可能导致.你可能想知道如果光也需要生命形成.直到最近,科学家们认为是光不可或缺的一环.但是现在已经在地球上发现的地方,总共洞穴等几英里的黑表面之下.和细菌,原始的生命形式,已经出现.所以缺乏光在欧洲的地下海洋并不能排除生命形成.