【改错练习】 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
【答案】 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。
更多精彩学习资料,请关注知米英语资讯平台
微信公众平台:蓝脑教育-知米英语 (微信号:ZhimiEnglish)
新浪微博: 知米英语
百度贴吧: 知米背单词吧
(文章来源:网络)