Amtrak—the largest railway company in the U.S.—was experiencing a declining in ridership.     1    major concerns to Amtrak and its advertising agency DDB Needham, were the long-distance western routes     2    ridership had been declining     3   
    At one time, trains were the only practical way to     4    the vast areas of the west. Trains were fast, very luxurious, and quite convenient     5    to other forms of transportation existing at the time. However, times change and the automobile became America's standard of convenience. Also, air travel had easily     6    itself as the fastest method of traveling great distances.     7    , the task for DDB Needham was to     8    consumers to consider other aspects of train travel in order to     9    their attitudes and increase the likelihood that trains would be considered     10    travel in the west.
    Two portions of the total market were targeted, anxious fliers—those concerned with     11    , and travel-lovers—those     12    themselves relaxed, casual, and interested in the travel experiences as part of     13    vacation. The agency then developed a campaign that focused on travel     14    such as freedom, relaxation, and enjoyment of the great western outdoors. It     15    experiences gained by using the trains and portrayed western train trips as wonderful adventures.
    Advertisements showed pictures of the beautiful scenery that     16    be enjoyed along some of the more famous western routes and emphasized the romantic names of some of these trains (Empire Builder, etc.). These ads were strategically placed among     17    oriented TV shows and programs involving nature and America in order to most     18    reach target audiences. Results were     19    . The Empire Builder, which was focused on in one ad, had a fifteen percent     20    in profits on its Chicago to Seattle route. 
 
【正确答案】 C
【答案解析】 解出本题的一个关键点是考生需要首先理解本题所在句子实际上是一个倒装结构,原文的正常语序应该为:
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   只要理解了上述语序,就知道答案为选项C项Of,因为此处的Of相当于among,表示“在……之中”,即“在主要的担忧之中”,也就是“主要的担忧之一”的意思,所以答案为选项C项Of。
   [参考译文]
   Amtrak,美国最大的铁路公司,正在经历着乘客数量的下降。对于Amtrak以及该公司的广告商DDB Needham公司而言,主要的担忧之一就是其长距离的西部线路上乘客数量的显著下滑。
   火车曾经是穿越广袤的西部大地的唯一交通方式。与当时的其他交通工具相比,火车速度快、非常豪华并且十分方便。但是随着时代的变化,汽车成为美国最为便捷的交通工具,而飞机则一跃成为长距离旅行最快捷的方式。因此,DDB Needham的任务就是引导消费者认识到坐火车旅行的其他优势以便改变他们的态度,促使他们选择坐火车去西部旅行。
   有两个主要的市场目标:焦虑的飞机乘客——那些关注自己安全的人,以及旅行爱好者——那些希望让自己放松、随意并且喜欢将旅行经历当作假期的一部分的人。这家广告公司随后推出了一项着重推介诸如自由、休闲地领略西部风光的旅行活动。活动强调了乘坐火车才能获得的旅行经历,并将西部的火车之旅描绘成了美妙的探险。
   广告展示了在著名的西部线路上可以领略到的美丽风光图片,还突出介绍了这些火车的浪漫名称(如帝国开拓者号)。这些广告被有意安排在以家庭为收视主导的电视节目中播放,通过展示美国风光来最有效地覆盖目标群体。其效果是令人惊叹的。比如在一个广告中被着重宣传的帝国开拓者号在其从芝加哥至西雅图的线路上就实现了15%的利润增长。