仔细考虑了一下。 我还是要选A BCD有明显的并列和重心的错误,先不考虑,单考虑E和A A确实有12楼的MM所说的副词位置的嫌疑,我知道系表结构中的副词要放在系动词后面,但被动式的副词,我目前还没有搞清楚,还望大牛指点。
E中的different than 则不可接受,是美国用法;因为ETS出的题是给全世界人考的,不是只给美国人考的,我想他还不至于要在全世界英语国家来推行他们的语言吧,再说出题者也会来自各个国家的教授学者。
再来看engage in和 be engageg in 我想,本题的意思应该是: nuclear attack submarines 原来的使命不是现在的任务,而是……,所以,我感觉它应该是被别人指使着做了现在的工作,而engage in则有主动去忙于什么事儿,未能突出它是被指使的意思;后一分句的被动式和前一个分句作了一个意思上的连贯,强调了内在的意思;个人觉得这里的as不仅有“当……时候”的意思,也有“对比”的含义。
as 对比含义用法举例: http://forum.chasedream.com/dispbbs.asp?BoardID=23&ID=42558
There are no legal limits, as there are for cod and haddock, on the size of the monkfish that can be caught, a circumstance that contributes to their depletion through overfishing.
A. There are no legal limits, as there are for cod and haddock, on the size of the monkfish that can be caught, a circumstance that contributes to their depletion through overfishing
B. There are no legal limits on the size of monkfish that can be caught, unlike cod or haddock, a circumstance that contributes to depleting them because they are being overfished.
C. There are legal limits on the size of cod and haddock that can be caught, but not for monkfish, which contributes to its depletion through overfishing.
D. Unlike cod and haddock, there are no legal size limits on catching monkfish, which contributes to its depletion by being overfished.
E. Unlike catching cod and haddock, there are no legal size limits on catching monkfish, contributing to their depletion because they are overfished.
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