2017届高考英语一轮复习时态语态专题攻略：现在完成进行时（含解析）_高考复习指南

　　A. studies

　　 B. studied

　　 C. is studying

　　D. has been studying

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

　　A. had considered B. has been considering

　　C. considered

　　D. is going to consider

　　3.—Did you find the missing couple in the mountain yesterday?

　　—No, but we _______ to get in touch with them ever since.

　　A. have tried

　　B. have been trying

　　C. had tried

　　D. had been trying

　　【答案及解析】

　　3. D【解析“从那时一直到现在，我们一直在努力和他们联系。”A选项表示联系过，隐含已经放弃，所以错误。正确答案为D。

　　现在完成进行时与现在完成时的区别

　　现在完成时强调动作的完成，而现在完成进行时强调动作的延续，因此，表示动作的完成，只能用现在完成时，而不能用现在完成进行时。

　　He has changed his idea.他改变了

　　2. 在表示动作的延续时，虽然既可用现在完成时，也可用现在完成进行时，但现在完成进行时强调动作的进行。因此在需要明确表示动作还要持续下去时，应用现在完成进行时。

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