精选优质文档-倾情为你奉上第六讲 现在完成时1. 概念:1)、表示动作或状态在过去已经开始, 持续到现在, 也许还要持续下去, 常和 for, since, 连用, 表示持续的动作或状态多为延续性动词.eg: We have lived here since 2000. 自从2000年以来我们一直住在这里. ( 说明一直住在这里, 也许还会住下去. ) She has worked in Nanning for five years. She has been ill for a week. 2)表示过去发生的或已经完成的某一动作对现在造成的影响或结果. eg: I have lost my pen. 我把钢笔弄丢了. ( 过去某时丢的, 现在还没有找到 ) I have already watched the TV play. 我已经看过这部电视剧了.- Have you had your lunch yet ? 你吃过午饭了吗? - Yes, I have just had it. 是