Under current federal law, employers are allowed to offer their employees free parking spaces as a tax-free benefit, but they can offer employees only up to $180 per year as a tax-free benefit for using mass transit. The government could significantly increase mass transit ridership by raising the limit of this benefit to meet commuters’ transportation costs. The proposal above to increase mass transit ridership assumes that (A) current mass transit systems are subject to unexpected route closings and delays (B) using mass transit creates less air pollution per person than using a private automobile (C) the parking spaces offered by employers as tax-free benefits can be worth as much as $2,500 per year (D) many employees are deterred by financial considerations from using mass transit to commute to their places of employment (E) because of traffic congestion on major commuter routes, it is often faster to travel to one’s place of employment by means of mass transit than by private automobile -- by 会员 小黛安 (2011/9/4 2:16:08)
在C选项中，说parking spaces can be worth as much as 2500 per year. 我们只能说任何比180高的数字可能是对的，但仅仅是可能，何况这个2500是怎么得来的，那么2000是不是也对呢，这个是assume不出来的。而题目问的是the proposal above to increase mass.......assumes....因此一定要回归到政府的proposal中，提高限额会增加公共交通的使用率，问这中间的assumption, 因此搭个桥填补gap，就是D选项，雇员是因为经济原因而放弃使用公共交通的，那么提高限额就会缓解这个经济原因。
一点儿愚见。。 | 
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发表于 2011-9-4 02:16:08
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