在职申硕英语考试

【分析解答题】What are black holes This question is difficult to answer, since we do not have the necessary words to describe them. Scientists think that a black hole is a region of space into which matter has fallen and from which nothing can escape. So we cannot see a black hole.
A、black hole exerts a strong gravitational pull and yet it has no matter. It is only space. The exploration of black holes is just beginning. There are many speculations about them. There might be a huge hole at the centre of our galaxy swallowing up stars at a very rapid rate. Mankind may one day meet this fate. On the other hand, scientists have suggested that very advanced technology could one day harness the energy of black hole for human’s use on earth. These speculations sound like science fictions.But the theory of black holes is accepted by many scientists and astronomers.

网考网解析：
试题答案：何谓黑洞？这个问题很难回答，因为我们没有恰当的词汇来来描述它们。科学家认为，黑洞是一个空旷的地带，物质往里面掉下去，而任何东西都不能从中逃出。因此，我们看不见黑洞。黑洞释放出强大的引力却又没有物质，它只是一个空间。对黑洞的探索还刚刚开始。关于黑洞人们有许多推测。我们所处的银河系的中央可能有一个黑洞，它以极快的速度吞食无数的星体。人类有朝一日或许也会遇到这样的命运。另一方面，科学家们表明，非常先进的科学总有一天能利用黑洞的能量供地球上的人使用。这些推测听起来有点像科幻小说，但是，黑洞理论已经被许多科学家和天文学家所接受。 答案解析：暂无解析 document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>