标题: OG语法74 [打印本页] 作者: 陶然异面直线 时间: 2012-8-5 16:47 标题: OG语法74 74.A 1972 agreement between Canada and the United States reduced the amount of phosphates that municipalities had been allowed to dump into the Great Lakes.
(A) reduced the amount of phosphates that municipalities had been allowed to dump (B) reduced the phosphate amount that municipalities had been dumping (C) reduces the phosphate amount municipalities have been allowed to dump (D) reduced the amount of phosphates that municipalities are allowed to dump (E) reduces the amount of phosphates allowed for dumping by municipalities
An agreement that occurred in 1972 is correctly described with the past tense verb reduced. Since the dumping continued after the date of the agreement, the past perfect verb had been allowed should instead be the present are allowed (if the agreement remained in eff ect when the sentence was written) or the past were allowed (if the agreement was no longer in eff ect when the sentence was written). Since were allowed does not appear in any of the options, we can assume that the correct verb tense is are allowed. Th e phrase amount of phosphates is clear and idiomatically correct, whereas phosphate amount is not idiomatic. 其实OG解释讲的很清楚 这里的协议是指讨论未来应该怎么做， 那当然未来协议的这个东西不可以用过去完成时来表述时态啦。作者: 靓linda 时间: 2012-8-5 20:30
C选项have been allowed to dump 为什么不行？ 也是表示过去发生的事情持续到现在呀？？ 十分疑惑。。 求解答作者: cyz12321 时间: 2012-8-5 20:49
reduces错，应是reduced，因为前面有1972作者: 陶然异面直线 时间: 2012-8-6 18:06
好吧，不找对的，只找更对。