3、习题

　　Unit 2 练习：

　　1.词汇英译汉：

　　escape, explode, collapse, shrink, gravity, measurement, basis, launch, convincing, companion,

　　speculation, swallow, operate, to make use of, a great many, above all

　　2.句子英译汉：

　　1) ~6) 与常考句型相同。

　　7) There might be a massive black hole at the center of our galaxy swallowing up stars at a very rapid rate.

　　8) They show us a world which operates in a totally different way from our own and they question our most basic experience of space and time.

　　3 句子汉译英

　　黑洞是什么，天文学家还没有完全解决这个问题。

　　Astronomers have not yet fully solved the problem of what a black hole is.

　　据说黑洞可以将其周围的一切物体，如星星吞食掉。

　　It is said that black holes are able to swallow up all the objects around them, such as stars .

　　对黑洞的研究刚刚开始，各种各样的假说层出不穷。

　　The research of black holes is just beginning and speculation about them are endless.

　　科学家仍不能说出黑洞内发生了什么。

　　Scientists still can not tell what happens inside a black hole.

　　It is still impossible for scientists to tell what happens inside a black hole.

　　如果我们认识了黑洞，黑洞就不那么可怕了。

　　If we understood black holes, they would not be so fearful .

　　Black holes will not be so fearful if we get to know them.

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