【#第一文档网# 导语】以下是®第一文档网的小编为您整理的《小学英语必备语法现在完成时》,欢迎阅读!
小学英语必备语法:现在完成时 现在完成时 构成:主语+助动词have, has+过去分词 用法: 1) 表示过去发生的和现在有某种联系的动作,常和just, usually, already, since等时间副词连用。 I have just had lunch. (饱了,不用再吃了。) He has had a cup of tea.(不渴了,不用再喝。) They have already had their holiday. (不能再度假了。) The boy has already read the book. (已经知道书的内容了,不用再看了。) 2) 询问别人是否做过某事一般用现在完成时: Have you finished your homework? Have you been to Beijing? Have he seen the film? 3) 表示开头于过去并持续到现在的动作 I have lived in Beijing for twenty years. I have worked for this school for 1 year. 4) 表示一种经受,阅历:去过…地方,做过…事情,经受过…事情 I have never had a bath. I have never seen a film. I have never been to cinema. I have ever been to Paris. Have been to表示去过,have gone to 表示去了 I have been to London.(人已经回来) He has gone to London.(人还在那里) -------------------------------------------------------------------------------- 5) 表示一种结果, 一般不和时间副词联用 I have lost my pen. I have hurt myself. He has become a teacher. She has broken my heart. 句型变化: ★变疑问句将助动词移到句首,变否认句在助动词后面加not. Have you lost your pen? I have not lost my pen. ★确定答复及否认答复 Yes, I have. / No, I have not. ★特别疑问句 What have you done? What has he done? 一般过去时与现在完成时的区分: 但凡有明确的表示过去的时间状语的句子为过去时。 留意:有些动词表示的动作有一个终点,不能再连续,因此不能和表示一段时间状语连用。 错:I’ve left Beijing for 3 days. 对:I left Beijing 3 days ago. I have been away from being for 3 days. 本文来源:https://www.dywdw.cn/5198b60a29f90242a8956bec0975f46527d3a7ef.html