HINTS： 

全文听写 

Carina-Cygnus spiral arm 

strewn 

400 billion suns 

100, 000 years 

faring

In the obscure backwaters of the Carina-Cygnus spiral arm, we humans have evolved the consciousness and some measure of understanding. Concentrated in its brilliant core and strewn along its spiral arms are 400 billion suns. It takes light 100, 000 years to travel from one end of the galaxy to the other. Within this galaxy are stars, worlds and it may be an enormous diversity of living things and intelligent beings and space faring civilizations.

这篇材料你能听出多少？点击这里做听写，提高外语水平>>