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19._____ the secret of nature,the young scientist has little time for entertainment.(  )
A.Devoted to bring upB.Devoted himself to bring up
C.Devoted to bringing upD.Devoting to bring up

分析 这位年轻的科学家致力于揭示大自然的奥秘,很少有时间娱乐.

解答 答案:C
题干中devoted to bring up the secret of nature作原因状语,要用非谓语动词;be devoted to sth全身心投入到某事中,致力于某事,后接名词或动名词;devote与主语the young scientist构成动宾关系,要用被动,即the young scientist is devoted to bringing up the secret of nature.故选C.

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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