初中英语语法复习现在完成时(共44张PPT)

现 在 完 成 时 态 study English How long have you been studying English? I have been studying English for two years. (2009-now) When did you start studying English? In 2009. 2009 started studying English 2012 studying 2 years has been studying 现在完成时 Present perfect tense 构成: 助动词have/has + 过去分词 1.肯定句 现在完成时的肯定句式是“have（has）＋过去分词”。 注意：该句式中的have或has是助动词，has用于第三人称单数，其它人称一律用have。 eg. He has eaten supper. They have eaten supper. 2.疑问句 　　现在完成时的一般疑问句式是把助动词have或has提到主语之前。 (回答用“Yes，---have/has．／“No，---haven’t/hasn’t．” ） 3.否定句： 现在完成时的否定句式是“haven't/hasn't＋过去分词”。 eg. Has he eaten supper? Yes, he has./No, he hasn’t. eg. He hasn’t eaten supper. They haven’t eaten supper. 现在完成时态的分类 用法一、 1。表过去发生的某一动作对现在造成的影响或结果, （强调结果现在还存在） 例如 I have just cleaned my clothes. 我刚洗过衣服。 （“洗衣服”是发生在过去的动作，对现在造成的结果是“衣服干净了”） I have just had my breakfast. (对现在的影响：不饿) Has he had his breakfast? Yes, he has. When did he have his breakfast? He had breakfast at 6:00. 1. My father bought many books f