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 take an active part in the process.
A. as a method of the extraction of minerals, it was well established
B. as a method of the extraction of minerals well established
C. was a well-established method of mineral extraction
D. was a well-established method of extracting mineral that was
E. had been a method of mineral extraction, well established
答案是C，
个人认为是E。 参见OG12-3 Although various eighteenth- and nineteenth-century American poets had professed an interest in Native American poetry and had pretended to imitate Native American forms in their own works, until almost 1900, scholars and critics did not begin seriously to study traditional Native American poetry in native languages. ?? (A) until almost 1900, scholars and critics did not begin seriously to study ?? (B) until almost 1900 scholars and critics had not begun seriously studying ?? (C) not until almost 1900 were scholars and critics to begin seriously to study ?? (D) it was not almost until 1900 when scholars and critics began to seriously study ?? (E) it was not until almost 1900 that scholars and critics seriously began studying 10 key ：E作者: geegee 时间: 2011-3-13 13:10
q41题目中： as early as ...与had been ...配合不恰当，since等更恰当，同时well established 修饰的对象不请楚，是采矿的历史呢？还是采矿方法使用的历史？显然，采矿的历史悠久的很，但是新的采矿方法层出不穷，leaching 也是其一。个人的一点愚见。供参考。所以还是c 合适。作者: geegee 时间: 2011-3-13 13:16
og12-3中，it was not until .... that.n. did ....是固定的搭配。 但在题干中， until ....n. did not貌似，虽然否定的位置变了，也只是否定了一次，但是不这么讲 。作者: gigi68788 时间: 2011-8-1 11:20
q41题目中： as early as ...与had been ...配合不恰当，since等更恰当，同时well established 修饰的对象不请楚，是采矿的历史呢？还是采矿方法使用的历史？显然，采矿的历史悠久的很，但是新的采矿方法层出不穷，leaching 也是其一。个人的一点愚见。供参考。所以还是c 合适。
-- by 会员 geegee (2011/3/13 13:10:05)
同意well established的修饰对象不明确~ 但是as early as不是应该是跟well established 搭配吗？不是跟had been吧？作者: bitieming 时间: 2011-8-1 11:27
as early as是同well established搭配的，well established做后置定语修饰Leaching，E中中间插入了引起歧义的内容。 另外过去完成时强调状态或动作在过去某一个时间点之前就“已经是这样了”，虽然语法上没有错误但是认为增加了原句中不存在的信息。作者: gigi68788 时间: 2011-8-1 11:30
怎么觉得从时态上来说应该选e呢？ but until about 25 years ago miners did not realize that bacteria take an active part in the process. 直到25年前才意识到………用了did
这个新方法在意识之前就已经有 了，用had 不是很好嘛?
求指教！作者: yangmars 时间: 2011-8-5 09:21
我原来也不懂，但是现在有些许懂了，就如你所说， 这个方法在意识到以前就已经有了， 这样的话应该是用过去完成时，但是问题是你看看文章，前者跟后者的主语或者说描述的对象不是同一个啊，前者是说一种方法，而后者说的是一个道理。所以逻辑意思上不需要用过去完成时。作者: UlysessHope 时间: 2011-9-2 20:03
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 take an active part in the process.（C）
A. as a method of the extraction of minerals, it was well established
B. as a method of the extraction of minerals well established
C. was a well-established method of mineral extraction
D. was a well-established method of extracting mineral that was
E. had been a method of mineral extraction, well established
--------------------------------------------------------- 请教关于 as early as the eighteenth century 的修饰问题：
C选项中 as early as the eighteenth century 是修饰谁的呢？还是同语法笔记上说的一样，修饰整句话？此时又是什么做成分呢？ D中是不是因为有that was 所以as early as the eighteenth century 修饰mineral 或method？ E中as early as the eighteenth century是修饰established的吧？