a我考网

 找回密码
 立即注册

QQ登录

只需一步,快速开始

扫一扫,访问微社区

查看: 70|回复: 0

[专八辅导] 专业八级改错练习题及答案解析(4)

[复制链接]
发表于 2012-8-14 11:29:10 | 显示全部楼层 |阅读模式
  What is a black hole? Well, it is difficult to answer the question,
+ \5 o2 [+ {$ S  as the terms we would normally use to describe a scientific phenomenon __1__$ T- K1 j% n/ O  u
  are adequate here. Astronomers and scientists think that a black hole is __2__
5 k9 p  b* f0 A2 d) ^  a region of space which matter has fallen and from which nothing can __3__
3 `8 f' C# f, j, X5 Q# O  escape—not even light. But we can’t see a black hole. A black hole __4__8 S) I0 g/ h9 X/ [
  exerts a strong gravitational pull and yet it has no matter. It is only7 M2 ?# ?0 S$ \, J( j5 I
  space—or thus we think. How can this happen? __5__4 l+ J3 L+ t" U7 L3 y/ Y* W
  The theory is that some stars explode when their density increases
2 d# t! r, ~4 ^+ p  to a particular point; they “collapse” and sometimes a supernova occurs.
4 e7 Z% o# ?+ W4 r  The collapse of a star may produce a “White Dwarf” of a “neutronstar”—
! \$ x) E  [, z" V  a star which matter is so dense that if continually shrinks by the force of __6___
" a# l, P9 g2 K) _& p1 |  its own gravity. But if the star is very large, this process of shrinking may
' ?% P0 W. a, h. Q4 o. j$ s* G" s  be so intense that a black hole results in. Imagine the earth reduced to the __7__/ y4 x4 s- ], M! n% f, ]2 T: e
  size of a marble, but still having the same masses and a stronger __8__
+ D$ q, I( f& x% \2 Z- k7 p  gravitational pull, and you have some ideas of the force of a black hole. __9__& i. L* s3 j# B1 W6 K' L
  And no matter near the black hole is sucked in. __10__% E, Y. }- K, @+ P2 t
  参考答案及解析:
+ a( \% ]: G. b  Y) Z5 f  q8 y  supernova 名词,[天]超新星
0 o+ K4 c4 u4 N  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。. X0 w0 `$ J/ {: M0 X. `1 l! F
  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。0 q- h8 o, z( m3 W
  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”。
; ~9 e/ G4 H% m  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。8 p7 U* d% M$ a3 h. Z* d2 a
  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。
% |" ~. q( C: D: m, G6 A& |# o+ g  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。8 L5 x) g8 Y6 X
  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”。
9 p3 l' X2 B& K, z2 ~( R" m- V8 u  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。
- q% f2 c; o8 t& t5 D  V. c  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。6 T' D0 Y: e2 `; S! |0 O, }
  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。
回复

使用道具 举报

您需要登录后才可以回帖 登录 | 立即注册

本版积分规则

Archiver|手机版|小黑屋|Woexam.Com ( 湘ICP备18023104号 )

GMT+8, 2024-9-21 13:31 , Processed in 0.192612 second(s), 21 queries .

Powered by Discuz! X3.4 Licensed

© 2001-2017 Comsenz Inc.

快速回复 返回顶部 返回列表