返回 【万物简史】PART I CH 1_12

听力简介:



这是一部有关现代科学发展史的既通俗易懂又引人入胜的书,作者用清晰明了、幽默风趣的笔法,将宇宙大爆炸到人类文明发展进程中所发生的繁多妙趣横生的故事一一收入笔下。惊奇和感叹组成了本书,历历在目的天下万物组成了本书,益于人们了解大千世界的无穷奥妙,掌握万事万物的发展脉络。
收获英语 收获一本好书~!

书本的朗读语音很charming的磁性英音~~~大家可以好好学着模仿哦~~~!!
因为原著为美国人所写,单词采用美式拼法,不抄全文,然后听写句子。请边听写边理解文意,根据上下文注意各句标号,这样有助于提高正确率。



Hints
Goldilocks
Einstein

I should say that everything is just right so far. In the long term, gravity may turn out to be a little too strong, and one day it may halt the expansion of the universe and bring it collapsing in upon itself, till it crushes itself down into another singularity, possibly to start the whole process over again. On the other hand it may be too weak and the universe will keep racing away forever until everything is so far apart that there is no chance of material interactions, so that the universe becomes a place that is inert and dead, but very roomy. The third option is that gravity is just right—"critical density" is the cosmologists' term for it—and that it will hold the universe together at just the right dimensions to allow things to go on indefinitely. [---1---] (For the record, these three possible universes are known respectively as closed, open, and flat.)

Now the question that has occurred to all of us at some point is: what would happen if you traveled out to the edge of the universe and, as it were, put your head through the curtains? Where would your head be if it were no longer in the universe? What would you find beyond? [---2---] That's not because it would take too long to get there—though of course it would—but because even if you traveled outward and outward in a straight line, indefinitely and pugnaciously, you would never arrive at an outer boundary. Instead, you would come back to where you began (at which point, presumably, you would rather lose heart in the exercise and give up). [---3---] For the moment it is enough to know that we are not adrift in some large, ever-expanding bubble. Rather, space curves, in a way that allows it to be boundless but finite. Space cannot even properly be said to be expanding because, as the physicist and Nobel laureate Steven Weinberg notes, "solar systems and galaxies are not expanding, and space itself is not expanding." [---4---] [---5---] Or as the biologist J. B. S. Haldane once famously observed: "The universe is not only queerer than we suppose; it is queerer than we can suppose."

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