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山西自考《英语(二)》复习资料--Text-Black Holes 3

山西自考网 发布时间:2012年06月04日
词组:phrases
  1.to research into 研究
  She is researching into possible cures for AIDS.
  她正在研究治疗艾滋病的方法。
  2 speculation about : 关于的猜测
  We heard all kinds of speculation about the cause of the Presidents death.大家听到关于总统死亡原因的种种猜测。
  People have much speculation about the governments intentions.对政府的意图,人们作了许多猜测。
  3 to swallow up : 吞没;并吞
  His wifes clothes bill swallowed up his wages .老婆买的衣服耗尽了他的工资。
  The fog swallowed up the whole city.雾笼罩全城。
  She swallowed the medicine with the help of some water.她用水把药咽下了。
   His figure was swallowed up in the dark.他的身影消失在黑暗中。
  4 to make use of :利用= to take advantage of
   We should make good use of our leisure time.大家应该好好利用休闲时间。
   He was making full use of his opportunity.他正充分利用他的机会。
  5 to reduce … to 简化,归纳,迫使
  Months bombing reduced the city to ruins.
  几个月的轰炸使这个城市变成了废墟.
  6 to apply to 适用于
  It does not apply to you.它不适用于你。
  课文详解
  Black Hole
  What is a black hole? Well, its difficult to answer this question, since the terms we would normally use to describe a scientific phenomenon are inadequate here.
Astronomers and scientists think that a black hole is a region of space (not a thing) into which matter has fallen and from which nothing can escape - not even light.So we cant see a black hole.A black hole exerts a strong gravitational pull and yet it has no matter.It is only space - or so we think.How can this happen?
  第一部分
  Para.1
  1 since 引导的是原因状语从句,定语从句we would normally use to describe a scientific phenomenon 修饰先行词the terms "术语"
  inadequate = not enough
  2 句中 " into which" 以及后面的 " from which" 两个都是引导的定语从句, 修饰先行词 a region of space "空间区域"。 如果which 在定语从句中作介词的宾语,那么这个介词可以提到从句前,构成"介词+which"引导的定语从句。这里注意两个搭配 fall into ; escape from
  3 A black hole exerts a strong gravitational pull and yet it has no matter.It is only space - or so we think.
  a strong gravitational pull 一个很强的引力 = gravity
  yet = but 但是
  so we think.是倒装句,"大家认为如此" ( we think so )
   The theory is that some stars
explode when their density increases to a particular point; they collapse and sometimes a supernova occurs.From earth, a supernova looks like a very bright light in the sky which shines even in the daytime.Supernova were reported by astronomers in the seventeenth and eighteenth centuries.Some people think that the Star of Bethlehem could have been a supernova.The collapse of a star may produce a White Dwarf or a neutron star - a star, whose matter is so dense that it continually shrinks by the force of its own gravity.But if the star is very large (much bigger than our sun) this process of shrinking may be so intense that a black hole results.Imagine the earth reduced to the size of a marble, but still having the same mass and a stronger gravitational pull, and you have some idea of the force of a black hole.Any matter near the black hole is sucked in.It is impossible to say what happens inside a black hole.Scientists have called the boundary area around the hole the "event horizon." We know nothing about events which happen once objects pass this boundary.But in theory, matter must behave very differently inside the hole.

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