考博英语改错模拟练习题及答案解析(2)

2015-08-06 16:34:49来源:网络

考博英语改错模拟练习题及答案解析(2)

  考博英语考试中有些院校的考博题型中有改错这项,考博英语改错题型需要同学们运用语法、修辞、结构等知识识别短文内的语病并作出改正,很考验考生的语法能力,新东方在线考博频道整理了考博英语改错模拟练习题及答案解析系列文章供考生们参考练习。

  What is a black hole? Well, it is difficult to answer the question,

  as the terms we would normally use to describe a scientific phenomenon __1__are adequate here. Astronomers and scientists think that a black hole is __2__a region of space which matter has fallen and from which nothing can __3__

escape—not even light. But we can’t see a black hole. A black hole __4__exerts a strong gravitational pull and yet it has no matter. It is only space—or thus we think. How can this happen? __5__

  The theory is that some stars explode when their density increases to a particular point; they “collapse” and sometimes a supernova occurs.

  The collapse of a star may produce a “White Dwarf” of a “neutronstar”—

a star which matter is so dense that if continually shrinks by the force of __6___its own gravity. But if the star is very large, this process of shrinking may be so intense that a black hole results in. Imagine the earth reduced to the __7__size of a marble, but still having the same masses and a stronger __8__gravitational pull, and you have some ideas of the force of a black hole. __9__And no matter near the black hole is sucked in. __10__

  参考答案及解析:

  supernova 名词,(天文)超新星

  1. 将as 改为since或者because。在表示原因的连接词中,只有as引导的原因状语从句不能位于主句之后,只能位于句首。

  2 .将adequate 改为inadequate,或者在are后加not。从逻辑上分析,因为我们拥有的科学术语“不充足”,所以才无法回答这个问题,所以用否定形式。

  3. 在which 前加into。这是一个定语从句,意思是“黑洞是太空中物质可以掉进去的地方”,所以定语从句应该为“into which matter has fallen”。

  4. 将but 改为 so。 上文已提到“连光都无法从黑洞中逃出”,所以我们根本无法看到黑洞。这里应该是因果关系,而不是转折关系。

  5 .将thus改为so。这句话的意思是“那只是空间—或者我们认为它只是空间”。so做 think 的宾语,thus 只能做连词,不能做宾语。

  6. 将which 改为whose。这个定语从句的意思是“它是一颗星,其密度非常大,由于自身的引力,它在不断地收缩”。matter 属于star,所以关系代词应该用whose。

  7 .去掉in。result为不及物动词,意为“形成了”,而“result in sth。”意为“导致某结果”。

  8. 将masses 改为mass。mass 可指“大量的物质”,而“the masses”特指“劳动群众”,用在此处不妥。

  9 .将ideas 改为idea。“idea”在表达“印象”时,为不可数名词,不可以用复数。

  10. 将no改为any。分析便知,任何在黑洞附近的东西都会被吸进去。

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摸清考试命脉,有技巧有方法有准备地进入到考博英语中。

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