标题: 请教一个not,but平行的题目 [打印本页] 作者: liufeng881025 时间: 2010-8-10 11:19 标题: 请教一个not,but平行的题目 Paleontologist Stephen Jay has argued that many biological traits are not the producs of natural selection, favored due to their enhancement of reduction or survival, but that they are simply random by-products of other evolutionary developments.
A B due to their production or survival they enhance, but they are C because they enhance reproduction or survival,but D because they enhance reproduction or survival,but are E because of enhancing reproduction or survival,but are
答案选D，我觉得C更平行啊， sth. are not A,but B D不就成了sth. are not A, but areB 请教作者: Christine瓜瓜 时间: 2010-8-10 11:24
but为连词,后接完整的句子,如果没有are,那but后面的句子的谓语动词是哪个呢?作者: liufeng881025 时间: 2010-8-10 11:29 有道理作者: 饭饭609 时间: 2010-8-10 14:41
C会造成一个歧义，变成了because they enhance reproduction or survival,but simply random by-products of other evolutionary developments.这样的话，就改变原意了。 而D是更清楚的，because 是一个插入语。 not A,but B 不是固定的。but are B也是可以的，主要看没有are 会不会造成歧义。 我记得这题有讨论帖里讲到的，具体可以搜索下。我讲的比较粗糙
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