表示经验的现在完成时 例:1)肯定句:I have seen the film three times. 2) 否定句:I’ve never seen the film. 3)疑问句:Have you ever been to U.K.? A→基本用法 表示经验的现在完成时.说明从过去起到现在的经验.即从过去到现在之间曾经经历过或做过的事情. B→常用的时间状语 Often, ever, before, never, once, twice, times, many times C→ have/has been的用法 形式 意义 用法 Have/has been to 表示“曾经去过-- 经验 表示“到 - 去过了- 完成 Have/has been in 表示“曾在-- 经验 表示“一直在-- 继续 例:a. have been to I have been to the summer palace twice. I have been to the museum to see the exhibition. b. have been in Have you ever been in America? We have been in home for the whole day. 插曲:be 动词的过去分词 Be动词的过去分词不管主语的人称和数都要用been表示 例:We have been tired these days 区别:I am happy. I was happy. I have been happy. 【
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