大学英语听力训练黑洞.docx

文档介绍：大学英语听力训练：黑洞
[00:]Unit 2 taxt A Black Holes
[00:]黑洞
[00:]What is a black hole?
[00:] 什么是黑洞呢?
[00

大学英语听力训练：黑洞
[00:]Unit 2 taxt A Black Holes
[00:]黑洞
[00:]What is a black hole?
[00:] 什么是黑洞呢?
[00:]Well,it”s difficult to answer this question,since the terms we would normally use to describe a scientific phenomenon are inadequate here.
[00:]喔,这个问题很难答复,由于我们通常用来描述一种科学现象的术语用在这里不适宜.
[00:]Astronomers and scientists think that a black hole
[00:]天文学家和科学家认为黑洞
[00:]is a region of space (not a thing )
[00:]是一个空间区域(不是一个物体),
[00:]into which matter has fallen and from which nothing can escape not even light.
[00:]物质会陷入其中,而没有物体可以从中逃逸出来.
[00:]So we can”t see a black hole.
[00:]--即使是光也不行,所以我们看不到黑洞.


[00:]A black hole exerts a strong gravitational pull and yet it has no matter.
[00:]黑洞产生很强的引力,而它却没有物质.
[00:]It is only space--or so we think.
[00:]它只是空间--或者我们认为是这们.
[00:]How this happen?
[00:]这是怎么发生的呢?
[01:]The theory is that some stars explode when their density increases to a particular point;
[01:]原理是一些星球的密度增长到特定的一个值时就会爆炸.
[01:]they collapse and sometimes a supernova occurs.
[01:]它们崩溃时会产生超新星.
[01:]