语法大全~

jeans2011

969. 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.
(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
这题as early as ... 可以直接跟在C项后面吗？是做什么成分啊？
961. Consumer confidence levels, which many economists consider an early indication of the economy’s direction, sagged as the stock market tumbled, but not dramatically enough for giving a clear picture of new spending patterns.
(A) tumbled, but not dramatically enough for giving
(B) tumbled, but not dramatically enough to give
(C) tumbled, and not so dramatically as to have given
(D) has tumbled, and not dramatically enough to give（B）
(E) has tumbled, but not so dramatically as to give
到底什么时候可以用enogh to啊？enough一般都怎么用？
955. Asset allocators create portfolios, often in the form of mutual funds, with the intention to turn in good results in both “bull” and “bear” markets.
(A) with the intention
(B) the intention of which is
(C) intended
(D) and intending（C）
(E) so intended as
为什么不能选A？
问题有点儿多，希望有人帮忙。。。。

酩茗

969你就把它当做是leaching was a well-established method of mineral extraction 200years ago嘛。你再多读两遍就有感觉啦。
961enough to do sth呀
955intent的用法有：with intent(n.) to do; inten(v.) of doing; intent(v.) on=concentrate on
intention用法：have intention of doing
LZ可以看看prep08.。。里面解释很详细的。

jeans2011

谢谢！