题目内容
16.______ by greater demand of vegetables,farmers have built more green houses.( )A. | Driven | B. | Being driven | C. | To drive | D. | Having driven |
分析 受蔬菜需求增长的驱使,农民们已经建造了更多的蔬菜大棚.
解答 答案:A
题干中前后句子之间有逗号分隔,没有连词,要用非谓语动词;drive和farmers之间是被动关系,要用过去分词;动作已经发生,要用过去分词的简单式,表示被动和完成.故选A.
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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