关于情态动词一般不改变原则的特例讨论。请大家指教！

第比利斯 · 发表于 2009-12-1 14:09:11

Responding to the public’s fascination with-and sometimes
undue alarm over-possible threats from asteroids, a scale
developed by astronomers rates the likelihood that a particular
asteroid or comet may collide with Earth.
A. a scale developed by astronomers rates the likelihood
that a particular asteroid or comet may
B. a scale that astronomers have developed rates how
likely it is for a particular asteroid or comet to
C. astronomers have developed a scale to rate how likely
a particular asteroid or comet will be to
D. astronomers have developed a scale for rating the
likelihood that a particular asteroid or comet will
E. astronomers have developed a scale that rates the
likelihood of a particular asteroid or comet that may.
正确答案，C
这道题我在C和E中徘徊。虽然C感觉很好。但是因为GMAT的SC有一个原则是情态动词一般不改变，不然就改变原句的语气了。所以E很难排除。
我的疑问，是否也有特例。
谢谢大家。

sj33333 · 发表于 2009-12-1 14:33:10

how likely是很口语的说法，一般不出现在书面语中。

第比利斯 · 发表于 2009-12-1 15:41:02

不好意思，答案是C呢。。。。。

关于情态动词一般不改变原则的特例讨论。请大家指教！

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