转贴 ：2006年1月真题--练习一下逻辑

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2006年1月真题--练习一下逻辑
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Questions 8-9 are based on the following passage.
Black holes are the most efficient engines of destruction known to humanity. Their intense gravity is a one-way ticket to oblivion, and material spiraling into them can heat up to millions of degrees and glow brightly. Yet, they are not all-powerful. Even supermassive black holes are minuscule by cosmic standards. They typically account for less than one percent of their galaxy's mass. Accordingly, astronomers long assumed that supermassive holes, let alone their smaller cousins, would have little effect beyond their immediate neighborhoods. So it has come as a sur¬prise over the past decade that black hole activity is closely intertwined with star formation occurring farther out in the galaxy.   .
8. Which best describes the function of (he statement in lines 10-13 ("So it... galaxy") ?
4 ^- [5 l. t, p8 g(A) -It summarizes the points made in the first four lines of the passage.
; e- X) j9 R. P. J( q: Q(B) It provides support for the argument asserted in the preceding statement.
0 ~! T. }9 f: |) q) F(C) It introduces a new view of information presented earlier in the passage.
(D) It challenges recent scientific findings.
(E) It offers examples to support a theory.
( k$ j1 w9 k1 W9. Which of the following most resembles the relationship between "black hole activity" and "star formation" (lines 11-12) as described in the passage?
; n1 Z  I+ |; D9 ~, B2 d: o- h(A) A volcanic eruption on one continent results in higher rainfall totals on another continent.
(B) Industrial emissions in one region lead to an increase in airborne pollutants in adjacent regions.         
  [2 Q5 T) b4 ?; s) w(C) A drought in a wilderness area causes a significant loss of vegetation in that area.
, v7 a4 ~/ B1 E9 o$ a2 H* R: \(D) Decreased oil production in one country results
( ?! O' P6 U# o6 T- J5 Kin higher gas prices in oil-dependent countries.
1 e& y8 Y" L( ^7 O(E) Overfishing in a gulf leads to an increase in
' Q- O) _- ~3 H: ]" v* V; fthe population of smaller aquatic organisms.
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