LZ的问题应该是对OG的解释没读明白: The clause some believe them to be does not supply a verb to accompany quasars as the subject of the sentence, and the clause supplies an object “them” so that quasars cannot be the object, making the sentence ungrammatical. 意思是说如果选C,句子就变成(省略掉插入语和逗号)Quasars some believe them to be the cores of galaxies in an early stage of development. 那么some believe them to be...就成了Quasars的定语从句了(省略that),此时,Quasars在这句话里面就失去了谓语动词; 另外,在这个定语从句里,Quasars应该是作believe的宾语的,可是believe已经有宾语them了,因此Quasars就不能成为believe的宾语,因此这个定语从句也不符合语法。 所以这里其实不存在什么C选项的语法结构,其实就是一个错误的选项而已。 -- by 会员 nightingale (2011/3/13 17:29:17)
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