Responding to the public’s fascination with-and sometimesundue alarm over-possible threats from asteroids, a scaledeveloped by astronomers rates the likelihood that a particular asteroid or comet may collide with Earth.
A.a scale developed by astronomers rates the likelihoodthat a particular asteroid or comet may B.a scale that astronomers have developed rates howlikely it is for a particular asteroid or comet to C.astronomers have developed a scale to rate how likelya particular asteroid or comet will be to D.astronomers have developed a scale for rating thelikelihood that a particular asteroid or comet will E.astronomers have developed a scale that rates thelikelihood of a particular asteroid or comet that may
GWD原题:GWD-26-Q17。科学家弄了个scale to rate how likely 彗星撞地球,
→参考观点:responding的主语为人,故排除A+B,D的for doing不如to do简洁,E改主干,C虽然看上去别扭,但是实际上是likely前置带来的阅读困难,放回去则成了“how a particular asteroid and comet will be likely to …”就舒服多啦。