2022-2023学年外研版英语八年级下册现在完成时课件

Grammar: Present Perfect 第一PT 1 流体几何线条莫兰迪风总结汇报商务通用ppt模板 目录 CONTENTS 用法 02 现在完成时结构 01 区分现在完成时和一般过去时 04 短语区分 03 2 结构 YOUR LOGO 01 PART ONE 3 PART ONE Structure 肯定句：主语+have/ has + done (过去分词)+其它 He has lived in Beijing for 10 years. 4 PART ONE Structure 否定句： 主语+have/ has+ not + done (过去分词)+其它 He has not finished his homework. Has not =hasn’t Have not= haven’t 5 PART ONE Structure 一般疑问句：Have/ Has +主语+ done (过去分词)+其它 Has he lived in Beijing for 10 years? 6 PART ONE 规则动词变化 与过去变化一致 直接+ed , jumped 以e结尾的直接+ d , moved 以辅元辅重读闭音节结尾的单词双写最后一个字母+ed , stopped 以辅音字母+y结尾的，把y变成i再+ed, studied 7 PART ONE 规则动词变化 词尾读音有3种： a．在浊辅音和元音后读[d]，如lived, watered, listened, played。 b．在清辅音后读[t]，如liked, helped, watched。 c．在[t],[d]音后读[Id]，如planted, wanted, handed(上交)。 8 PART ONE 部分不规则动词变化 am,is/ are — was/were—have/has been do — did— have/ has done drive— drove— have/has driven fall— fell— have/ has fallen find— found— have/ has found go — went— have/has gone have— had— have/has had know—knew—have/has known lose— lost—have/has lost make — made— have/ has made run— ran— have/has run sell— sold— have/ has sold speak— spoke— have/ has spoken teach — taught— have/has taught win— won— have/has won write—wrote—have/has written 9 用法 YOUR LOGO 02 PART TWO 10 PART two 现在完成时用法1 1.表示过去发生的某一动作对现在造成的影响或结果，常与一些时间状语，如：already, yet, ever, never, just, before, once, twice （次数）等连用，也可以和包括现在在内的时间状语，如these days, today, recently, this year, so far(=by now)等连用. Can I play outside? I have already finished my homework. 11 1. Have you _____been to Japan? 2.I have _____ finished my homework. 3.I have finished my homework ______. 4.I haven’t finished my homework ____. 5.Have you found him______? 现在完成时用法1中 常与表示不明确的时间状语连用，如： just, already, yet, before, ever, never，有此类副词时,常强调动作完成,不强调动作的持续. 1. Have you _____been to Japan? 2.I have _____ finished my homework. 3.I have finished my homework ______. 4.I haven’t finished my homework ____.