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标题: prep1-86 [打印本页]

作者: lilydenris 时间: 2011-11-11 07:07 标题: prep1-86

86.

An international team of astronomersworking at telescopes in the Canary Islands and Spain has detected at least 18huge gas spheres estimated to have 5 to 15 times the mass of Jupiter, thesolar system's largest planet.

(A) astronomers working attelescopes in the Canary Islands and Spain has detected at least 18 huge gasspheres estimated to have 5 to 15 times the mass of Jupiter

(B) astronomers working attelescopes in the Canary Islands and Spain has detected at least 18 huge gasspheres estimated to be 5 to 15 times Jupiter's mass

(C) astronomers is working attelescopes in the Canary Islands and Spain, having detected at least 18 huge gasspheres that are estimated at 5 to 15 times the mass of Jupiter

(D) astronomers, working attelescopes in the Canary Islands and Spain, and has detected at least 18 hugegas spheres estimated at 5 to 15 times the mass of Jupiter

(E) astronomers, working attelescopes in the Canary Islands and Spain, has detected at least 18 huge gasspheres they have estimated to be 5 to 15 times Jupiter's mass

语法笔记上面说BCD是比较双方不对等。但BCD和A的比较不是一样的么，都是gas spheres和themass of Jupiter啊。还是说A选项中由于用了have因此不构成比较，而BCD中用的是be所以是比较？求指点

作者: voleroiseau 时间: 2011-11-11 20:48

首先考虑主谓一致的关系，主语是An international team of ，所以谓语应该是单数
A.是has
B.是has
C.是is，但是是having detected，这个不应该用独主，因为ing型独主是修饰前面整句的，是一种inevitable consequence，可是这里不是，排了
D.N, 插入结构，and has，不是正确的句子结构
E. has
所以在ABE中选
2. 这时候未划线结构能够成为比较好的提示thesolar system's largest planet.是修饰前面的noun的，这里有点同位语的结构, 所以这个结尾的名词，只能是planet,不能是mass,所以只能是A

作者: lilydenris 时间: 2011-11-12 06:37

谢谢楼上的解释，但我还是想知道BCD和A选项是否比较对象不对等

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