文档介绍：生物专业英语翻译
English for biology students translation Lesson6-9
第六课
A Home for Life: Formation of the Solar System and Earth
The story of life's origins begins with the formation of the earth. The sequence of events that gave rise to our began, in turn, with the cosmic explosion physicists call the Big Bang. The sun at the center of our solar system condensed from a cloud of primordial matter roughly 5 billion years ago; the s, including the earth, condensed about billion years ago. The earth posed of a number of layers: a solid crust, a semisolid mantle, and a largely molten (liquid) core that has a solid center. Basic physical features of Earth that may have made the emergence of life possible include the 's size, temperature, composition, and distance from the sun. The major current hypothesis holds that life arose spontaneously on the early earth by means of chemical evolution from nonliving substances.
生命起源于地球的形成。大爆炸是我们行星形成的开始。太阳在50亿年前生成,位于太阳系中心,行星,包括地球,在46亿年前生成。地球由多层组成:坚硬的地壳,半流体的地幔,一个很大的溶解中心中存在一个坚实的中心。地球的基本特征使生命起源成为可能,包括行星的大小,温度,组成以及离太阳的距离。当前主要假设认为,由非生命的化学物质进化过程自发产生了生命。
The Emergence of life: Organic and Biological Molecules on a Primitive
Evidence for prelife stages of es from laboratory experiments that try to duplicate the physical environment and chemical resources of the early earth. These experiments, including the pioneering work of M