题目内容
2.The project of the underground _____ improving the transport of the city began in the early 1980s.( )A. | aimed to | B. | aimed at | C. | aiming to | D. | to aim at |
分析 旨在改善城市交通的地铁项目开始于二十世纪八十年代.
解答 答案:B 句中aim作project的定语,aim与project构成动宾关系,要用表示被动的过去分词;aim…at…后接名词或动名词,aim…to do sth,后接不定式.故选B.
点评 过去分词是非谓语动词的一种,用法很灵活,分为简单式done(表示与谓语同时或几乎同时发生的动作);完成式having been done(表示先于谓语的动作).学习时,要把握其用法特征:表示被动和完成.同时还要注意区分现在分词和不定式.

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