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题库 / Prep2007E1-SC-168
An international team of astronomers working at telescopes in the Canary Islands and Spain has detected at least 18 huge gas spheres estimated to have 5 to 15 times the mass of Jupiter, the solar system's largest planet.
astronomers working at telescopes in the Canary Islands and Spain has detected at least 18 huge gas spheres estimated to have 5 to 15 times the mass of Jupiter
astronomers working at telescopes in the Canary Islands and Spain has detected at least 18 huge gas spheres that are at an estimated 5 to 15 times Jupiter's mass
astronomers is working at telescopes in the Canary Islands and Spain, having detected at least 18 huge gas spheres that are estimated at 5 to 15 times the mass of Jupiter
astronomers, working at telescopes in the Canary Islands and Spain, and has detected at least 18 huge gas spheres estimated at 5 to 15 times the mass of Jupiter
astronomers, working at telescopes in the Canary Islands and Spain, has detected at least 18 huge gas spheres they have estimated as being 5 to 15 times Jupiter's mass
如果选B， 逗号后的定语就是修饰Jupiter's mass而不是Jupiter， 所以错误
未划线部分是同位语，先行词应该是jupiter
A correct
(B) 以mass结尾，使得同位语修饰对象错误；that are at an estimated 5 to 15 times表达方式错误。
(C) that are estimated罗嗦；estimated at 5 to 15 times 应该是estimated to be/have；将原句中的修 饰成分与谓语进行变换，改变了原文强调的重心。
(D) and has…没有并列对象，应该去掉and。
(E) they have estimated as being 5 to 15 times表达方式错误；they指代不清楚；以mass结尾，使得 同位语修饰对象错误。