Shanghai is one of the important______and financial centers of the world.

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问题 Shanghai is one of the important______and financial centers of the world.

选项 A、effective
B、economic
C、economical
D、efficient

答案B

解析 词汇题。根据句意及各选项词义,选B。A.有效的;B.经济的,关系国计民生的,有实用价值的,俭省的;C.俭省的,节约的;D.高效率的。本题涉及两组近义词的辨析A与戌c。economic和economical都可表示“经济的’’,但含义和用法不用:economic,是相对于政治而言的,指与贸易、工业、财政等有一定关联的“经济上的”,或者统属社会科学方面的“经济学的”,一般用作定语。如:The country was in a bad economic state.那个国家的经济状况恶化了。The last decade is a period of sustained economic growith.过去的十年是一个持续的经济增长期。economical,指在费用上、开支上的“经济的"或者“节约的",多用作表语,也可用作定语。如:Going by train is more economical than going by plane.坐火车比坐飞机更节约。Bicycles are regarded as an economical alternative to buses whose fares have increased 5 times inthe past 3 years.自行车被看成是比公共汽车更实惠的交通工具,因为公共汽车票价最近三年涨了五倍。effective和efficient均可表示“产生效果的、生效的”。其用法区别是:effective,强调能够实际产生出效果的,可用于人或事物,意为“有效的”。如:Several new druges are effective in treating liver rot.有好几种新药对治疗肝吸虫病很有效。The law became effective last month.这条法律上个月已生效。efficient,强调效率高而不浪费时间、精力、能量等,可用于人或事。指人时表示“能干的”,指物时表示“收效大的”。如:I need an efficient secretary.我需要一个能干的秘书。The new copy machine is more efficient than the old one.这台新复印机比那台旧的效率高。
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