现在完成进行时 1.现在完成进行时由助动词 have/has＋been＋v. ing 形式构成。 它和现在完成时一样，表示从过去开始到现在这一段时间里一直延续着的动作。现在完成时侧重于动作的结果和完成，而现在完成进行时侧重于动作的未结束和继续进行。 (1)表示从过去某时开始一直延续到现在的动作。这个动作可能刚停止，可能仍继续进行下去，常与延续性动词连用。并常与 this week，this month，all night，all the morning，recently 等状语以及 since 和 for 引导时间的状语连用。 I have been waiting for you for two hours. 我等你两个小时了。 I have been writing the composition for two hours，but I haven't finished it yet. 我写了两个小时作文了，但现在仍没写完。 I have been reading Hemingway's Farewell to Arms recently. 我最近一直在读海明威的《永别了，武器》。 (2)表示近期内时断时续、重复发生的动作。表达较重的感情色彩。 He has been writing articles to the newspapers and magazines since he became a teacher. 自从任教以来，他一直在为报刊杂志撰稿。 We have been having a lot of rain recently. 最近雨水很多。 He has been promising me to help you.Hasn't he done it? 他总是向我许诺帮助你。他从没做过吗？ (3)表示已结束的动作产生的影响。 You look tired；what have you been doing? 你看起来很累，你一直在干什么？ 【深化点拨】 不用于进行时态的动词，如 be, have, like, love, know, see, hear, marry 等，通常不用于现在完成进行时，但可用于现在完成时。 *They have been married for ten years. 他们结婚已经十年了。 *I have known her for one week. 我认识她才一星期。 2．现在完成进行时和现在完成时的区别： (1)表示动作延续时，两者区别不大，只是现在完成进行时更强调动作的延续性。口语中倾向于用此时态。 (2)现在完成时表示动作已完成，着重结果；现在完成进行时表示的动作不一定已完成，强调动作的延续性。 They have prepared the lecture all the morning. 他们准备了一早上报告。 They have been preparing the lecture all the morning. 整个早上他们一直在准备报告。 The students have been trying to improve their...
