2011年08月08日 07时32分，《英语学习:2011自考英语（二）复习资料：UNIT2》由出国留学网liuxue86.com英语编辑整理.
3.But in theory, matter must behave very differently/in a very different manner inside the black hole.
4.The most convincing evidence of black holes comes from research into binary star systems.
5.Mankind may one day meet this fate.
四、历年试题
1. 星体的密度增大到一定程度时就会发生爆炸。
答： The star will explode when its density increases to some extent.
2. 你能想象黑洞的引力有多大吗？
答： Can you imagine how strong the gravitational pull of a black hole is ?
3. 假如有人掉进黑洞，他会认为很快能到达黑洞的中心。
答：If a man fell into a black hole, he would think that he reached the center of it very quickly.
4. 早在17世纪天文学家便对超新星有过报道。
答： Supernovae were reported by astronomers as early as in the seventeenth century.
5. 他已尽了全力以达到自己的目标。
答： He has exerted all his strength to attain his goal.
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