手机APP下载

您现在的位置: ms196明仕亚洲 > 英语听力 > 双语有声读物 > 万物简史 > 正文

万物简史(MP3+中英字幕) 第52期:埃文斯牧师的宇宙(16)

来源:可可英语 编辑:liekkas   VIP免费外教试听课 |  可可官方微信:ikekenet
 下载MP3到电脑  批量下载MP3和LRC到手机
加载中..
About 4.6 billion years ago, a great swirl of gas and dust some 15 billion miles across accumulated in space where we are now and began to aggregate. Virtually all of it—99.9 percent of the mass of the solar system—went to make the Sun. Out of the floating material that was left over, two microscopic grains floated close enough together to be joined by electrostatic forces.
大约46亿年之前,一股直径约为240亿公里、由气体和尘埃组成的巨大涡流,积储在我们现在所在的空间,并开始聚积。实际上,太阳系里的全部物质--99.9%的物质--都被用来形成了太阳。在剩下的飘浮物质当中,两颗微粒飘到很近的地方,被静电吸到一起。
埃文斯牧师的宇宙.jpgThis was the moment of conception for our planet. All over the inchoate solar system, the same was happening. Colliding dust grains formed larger and larger clumps. Eventually the clumps grew large enough to be called planetesimals. As these endlessly bumped and collided, they fractured or split or recombined in endless random permutations, but in every encounter there was a winner, and some of the winners grew big enough to dominate the orbit around which they traveled.
这是我们的行星孕育的时刻。在整个初生的太阳系里,同样的情况正在发生。尘粒互相碰撞,构成越来越大的团块。最后,这些团块大到了一定程度,可以被称做微行星。随着这些微行星无休止地碰撞,它们或破裂,或分解,或在无休止而又随意的置换中重新合并,但每次碰撞都有一个赢家,有的赢家越来越大,最后主宰了它们运行的轨道。
It all happened remarkably quickly. To grow from a tiny cluster of grains to a baby planet some hundreds of miles across is thought to have taken only a few tens of thousands of years. In just 200 million years, possibly less, the Earth was essentially formed, though still molten and subject to constant bombardment from all the debris that remained floating about.
这一切都发生得相当快。据认为,从小小的一簇尘粒变成一颗直径为几百公里的幼星,只要花几万年的时间。在不过2亿年的时间里,很可能还不到,地球就基本形成了,虽然仍是灼热的,还经常受到仍在到处飘浮的碎片的撞击。
重点单词   查看全部解释    
aggregate ['ægrigeit,'ægrigit]
想一想再看
n. 合计,总计,集合体,集料 adj. 合计的,集合的
联想记忆
encounter [in'kauntə]
想一想再看
n. 意外的相见,遭遇
v. 遇到,偶然碰到,
 
planet ['plænit]
想一想再看
n. 行星
 
essentially [i'senʃəli]
想一想再看
adv. 本质上,本来
 
constant ['kɔnstənt]
想一想再看
adj. 经常的,不变的
n. 常数,恒量
联想记忆
eventually [i'ventjuəli]
想一想再看
adv. 终于,最后
 
dominate ['dɔmineit]
想一想再看
v. 支配,占优势,俯视
 
microscopic ['maikrə'skɔpik]
想一想再看
adj. 显微镜的,极小的,微观的
 
random ['rændəm]
想一想再看
adj. 随机的,随意的,任意的
adv. 随
 
split [split]
想一想再看
n. 劈开,裂片,裂口
adj. 分散的
 
发布评论我来说2句

    英语学习专题

    可可英语官方微信(微信号:ikekenet)

    每天向大家推送短小精悍的英语学习资料.

    添加方式1.扫描上方可可官方微信二维码。
    添加方式2.搜索微信号ikekenet添加即可。