到目前为止,科学家还没有完全解开地球上生命的诞生之谜。有些科学家提出假说,称最早的有机分子是在一种“有机汤”里形成的,而当时的地球大气中并没有氧气;另外一些科学家想象海洋底部可能会为生命的形成提供能量;还有种可能,就是来自宇宙的化学物质播撒到了地球。 So far, scientists have not completely solved the mystery of the birth of life on Earth. Some scientists have come up with the hypothesis that the earliest organic molecules were formed in a kind of “organic soup,” when there was no oxygen in the earth’s atmosphere. Others thought that the bottom of the ocean might provide energy for the formation of life. There is a possibility that the chemicals from the universe are spreading to the earth.