备考完成进行时的要点说明一、现在完成进行时现在完成进行时由“have / has been +现在分词”构成。表示从过去某个时候开始一直延续到现在的动作。强调现在依然在进行，并还可能继续延续下去。如：1. Now that she is out of a job, Lucy ________ going back to school, but she hasn’t decided yet. (北京卷)A. had considered B. has been considering C. considered D. is going to consider 【分析】答案选B。由but she hasn’t decided yet (尚未决定) 可知，从开始失业时起到现在一直在考虑再去上学，并可能继续考虑。2. —Hi, Tracy, you look tired. —I am tired. I ________ the living room all day. (全国卷)A. painted B. had painted C. have been paintingD. have painted【分析】答案选C。由all day可知，从早上起一直在粉刷房间，到现在还在粉刷，并可能继续下去。二、过去完成进行时过去完成进行时由“had been +现在分词构成”，表示从过去某一时间开始一直延续到另外一个过去时间的动作，这个动作在当时仍在进行并可能继续延续下去。如：The crazy fans ________ patiently for two hours and they would wait till the movie star arrived. (重庆)A. were waiting B. had been waitingC. had waited D. would wait【分析】答案选B。would wait显然发生在过去，再结合for two hours可知，wait是从过去某一时刻开始一直到另一过去时间为止已有2小时，并且在持续下去，所以用过去完成进行时。

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