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时态详解：现在完成进行时 一、现在完成进行时的定义 现在完成进行时表示某动作从过去某个时间开始，一直延续到现在，并且还有可能持续下去。如： Those cats have been screaming for hours. 那些猫叫了半天了。 We have been waiting for him for two hours. 我们等他等了两个小时。 The dollar has been climbing steadily all week. 整个星期美元一直在稳步增值。 二、现在完成进行时的结构 现在完成进行时由“have / has been + 现在分词”构成。如： Sales have been dropping off badly. 销售量一直减少得很厉害。 I have been waiting for an hour and a half. 我一直等了一个半小时了。 We’ll have been living here for two years by next Sunday. 到下星期日，我们在这里就住了整两年了。 三、现在完成进行时有哪些主要用法 1. 表示“持续”： 即表示一个从过去某时开始一直持续的动作，这动作可能刚刚停止，也可能还在进行。如： She has been pruning the roses. 她一直在修剪玫瑰。 He’s been helping himself to my stationery. 他未经许可一直用我的文具。 The children have been having a lot of fun. 孩子们一直玩得很开心。 She is very tired. She’s been working all morning. 她很累。她干了一早晨了。 Tom has been seeing about a work permit for you. 汤姆一直在想办法给你弄一个工作许可证。 The tobacco industry has been trying to improve its image. 烟草行业一直在试图改善其形象。 It has come to our knowledge that you have been cheating the company. 据我们了解你一直欺骗公司。 The group has been living in a remote corner of the Cambodian jungle. 该部落一直居住在柬埔寨的丛林深处。 |
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