2011自考英语（二）复习资料：UNIT2-3

　　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.
　　单元课后练习
　　Ⅰ.Word Spelling
　　1.密度 n. density _ _ _ _ _ _ _ _
　　2.（使）倒塌，（使）崩溃 v. collapse _ _ _ _ _ _ _ _
　　3.边界线，边界 n. boundary _ _ _ _ _ _ _ _
　　4.永恒的，经久不变的 a.c _ _ _ _ _ _ _ _
　　5.基础，根据 n.b _ _ _ _ _ _ _ _
　　6.发射，发动 v.l _ _ _ _ _ _ _ _
　　7.双胞胎之一 a.t _ _ _ _ _ _ _ _
　　8.同伴，同事 n.c _ _ _ _ _ _ _ _
　　9.人类 n.m _ _ _ _ _ _ _ _
　　10.推测，猜测 n.s _ _ _ _ _ _ _ _
　　11.吞 v.s _ _ _ _ _ _ _ _
　　12.不充分的 a.i _ _ _ _ _ _ _ _
　　13.物质 n.m _ _ _ _ _ _ _ _
　　14.情况，环境 a.c _ _ _ _ _ _ _ _
　　15.发生，出现 v.o _ _ _ _ _ _ _ _
　　16.强烈的 a.i _ _ _ _ _ _ _ _
　　17.证据 n.e _ _ _ _ _ _ _ _
　　18.看不见的 a.i _ _ _ _ _ _ _ _
　　19.宇航员 n.a _ _ _ _ _ _ _ _
　　20.热带的 a.t _ _ _ _ _ _ _ _
　　Ⅱ.Word Form
　　1.Supernovae____(report) by astronomers in the seventeenth and eighteenth centuries.
　　2.Imagine the earth reduced to the size of a marble, but still____(have) the same mass, and you have some idea of the force of a black hole.
　　3.If one____(make) a journey over the Continents one would find every kind of surface including mountain ranges, plains, and empty areas covered permanently by ice and snow.
　　4.And astronomers are planning a new observatory to study the individual exploding stars____(believe) to be black holes.
　　5.Matter from the one which we can see____(pull) towards the companion star.