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4._______ from endless homework on weekends,the students now find their own activities,such as attending school literature clubs.(  )
A.Having freedB.FreeingC.To be freedD.Freed

分析 周末从无休无止的作业中解脱出来,学生们现在可以找到自己的活动了,例如参加学校文学俱乐部.

解答 答案:D 题干中有逗号分隔,没有连词,要用非谓语动词;free sb from从某事中解脱出来,free与主语students构成动宾关系,且句意表达的是客观事实,要用过去分词作原因状语.故选D.

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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