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Grammar 1. 现在完成进行时 (1) 结构:have/has + been + V.ing. (2) 用法:表示从过去某一时刻开始,一直延续到现在且很有可能持续下去; I’ve been doing the cleaning all this morning. 表示从过去开始一直持续到现在的某一动作刚刚结束; You’re late again! I’ve been waiting here for an hour. 表示一个一直到说话时为止的一段时间内一再重复的动作。 I have been calling you several times in two days. (3) 时间状语:all the time/this morning, since morning, all night, this week/month, recently 等 (3) 对现在完成进行时的时间状语进行提问时使用how long。 How long have you been skating? I’ve been skating since I was seven years old. for 5 years old. 2. 现在完成进行时与现在完成时区别: 现在完成进行时侧重于动作的持续、运行;而现在完成时强调动作的完成。如: I have written a letter to my father.(到现在信已写完)我给我的父亲写了一封信。 I have been writing a letter to my father.(一直在写,现在还在写)我一直在给我的父亲写信。 再看:I wrote a letter to my father. 我给我的父亲写过一封信。 |