Leaching, the recovery of copper from the drainage water of mines, as a method of the extraction of minerals, it was well established as early as the eighteenth century, but until about 25 years ago miners did not realize that bacteria taken an active part in the process.
正确答案是： was a well-established method of mineral extraction 我纠结了： had been a method of mineral extraction, well established答案说应该用限定性修饰来说明句子所提的method是早在18世纪就建立的那个，为什么呀？怎么一定method就指18世纪的那个呀？还是不明白我的那个为什么错。。。
这题我记得，well established 修饰有歧义， 逻辑上，well established是应该修饰Leaching 作为一个 method well established （就是前面整个句子）， 但是这里有修饰leaching这个的歧义 所以well establised method 直接跟在leaching后面就很清楚了
关于修饰歧义，是我自己总结的啊。。。。所以楼主你就作为当做参考 通常，一个 主谓宾， adj ... 这个就是有修饰前面主语的意思， 譬如说Prep中有一个句子， The number of people flying first class on domestic flights rose sharply in 1990, doubling the increase of the previous year. A. doubling the increase of B. doubling that of the increase in C. double as much as the increase of D. twice as many as the increase in E. twice as many as the increase of
其中的C选项，Prep08是这么解释的 说double as much as 是作为同位语修饰词，紧接其修饰能容，在此句中，逗号前，不是一个figure，所以不能用 double as much as 来修饰，即使 double as much as 来修饰 the numer (即主语）也是不对的，应该用Great来修饰number 此选项，应该选A doubling， 因为doubling引导的是结果状语，修饰前面整个一段话。
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发表于 2011-12-17 22:52:55
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