Unit 3 The Internet Discovering Useful Structures 现在完成时被动语态的用法-2021-2022学年高一英语精美课件 精美教案（必修二）（人教版2019）

2019人教版必修二Unit 3 The internet Discovering Useful Structures 现在完成时被动语态 云南省曲靖师第一中学 原创制作：周昆林 邹明传 张颖 吴欣 1. Read the pairs of sentences. Underline and compare the different verbs. Jan’s life has been greatly improved by the Internet. The Internet has greatly improved Jan’s life. People have written much about the wonders of the World Wide Web. Much has been written about the wonders of the World Wide Web. passive active active passive 现在完成时与现在完成时被动语态 2 现在完成时谓语结构 Active主动 Passive被动 have/has done have/has been done Verb form 1. 定义 表示动作已经完成，强调对现在造成的影响和结果。 常与一些副词连用，如already, ever, never, recently，lastly, just, yet等，通常把副词放在助动词have或 has的后面，有时候也可以放在句末。 表示一直持续到现在的动作或状态。 常与for some time, (ever)since, how long , so far等表示一段时间的时间状语连用。 2. 构成 陈述句 主语+has/ have been（not）+P.P.+... 一般疑问句 Has/have+主语+been+P.P.+...? 特殊疑问句 特殊疑问词+have/has +been +P.P.+...? The road has been built. Has the road been built? Where has the road been built? SUMMMARY 现在完成时的被动语态 含义 结构 1.表示过去发生的被动动作强调对现在的