2017届高三英语语法要点细讲精练（最新高考+模拟）：专题2 动词时态及语态_高考复习指南

　　过去进行时：未完成

　　考点三、现成完成时与现在完成进行时

　　1．现成完成时

　　（1）考查表示所发生的动作或事情对现在的影响或产生的结果

　　例12Although medical science _______ control over several dangerous diseases, what worries us is that some of them are returning.

　　A. achieved B. has achieved C. will achieve D. had achieved

　　【解析】尽管句中未出现时间状语，我们从句意可以判断出医学已经控制住了一些危险的疾病，所以答案是B。

　　（2）考查表示一个从过去某个时间开始，延续到现在的动作

　　例13My friend, who _______ on the International Olympic Committee all his life, is retiring next month.

　　A. served B. is serving C. had served D. has served

　　【解析】此题中的时间状语all his life 说明我的朋友从过去到现在一直在奥委会工作，答案应是D。

　　例14My brother is an actor. He _______ in several films so far.

　　A. appears B. appeared C. has appeared D. is appearing

　　2．现成完成进行时

　　主要考查表示一个从过去某时开始发生，一直延续到现在并可能延续下去的动作。

　　例15Now that she is out of a job, Lucy _______ going back to school, but she hasn’t decided yet.

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