请教08prep语法笔记196

bycsscsq · 发表于 2012-5-5 14:46:43

196.(GWD-1-Q41)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(C)

E.had been a method of mineral extraction, well established
笔记中：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，即去掉逗号；
那么 e中既然用的是非限定修饰，那它的句意是什么？难道是：它只是18世纪建立的多个method之一？
谢谢！！～～～

bycsscsq · 发表于 2012-5-5 15:25:43

scarlett006 · 发表于 2012-5-5 16:09:50

E是时态问题吧,而且这句话是说leaching这个东西是一种早在18世纪就well established method.
A很明显的run-on了
B的话是不是说leaching自己不能established
D限定修饰让句意发生改变

不知道对不对啊

请教08prep语法笔记196

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