一般过去时VS现在完成时（课件）-新概念英语第一册

一般过去时vs.现在完成时对比巩固与情景运用|新概念英语第一册·Lesson85-86Warm-up:GrammarChantdidityesterday,it'sinthepast.havedoneitalready,theeffectwilllast!wenttoParis,he'sbackhomenow.hasgonetoParis,she'saway,wow!QuickReview:StructuresSimplePast(一般过去时)结构:Subject+V-ed例句:•IvisitedParislastyear.•Didyouseethefilm?•Ididn'tgotothecinema.PresentPerfect(现在完成时)结构:Subject+have/has+V-p.p.例句:•IhavevisitedParistwice.•Haveyouseenthefilmyet?•Ihaven'tbeenthere.TextPerception:ParisintheSpringKen:HaveyoueverbeentoParis,Rita?Rita:Yes,Ihave.IwasthereinApril.Ken:Wasitbeautiful?Rita:Yes,itwas.Itwasverybeautiful.思考问题:WhydidRitause'was'insteadof'havebeen'?Becauseshementionedaspecifictime:inAprilFocus1:SimplePastTense核心功能(CoreFunction):描述在过去特定时间发生的动作，已经完成，与现在没有直接联系。时间状语(TimeAdverbials):•yesterday•lastweek•in2023•twodaysago•justnow例句:'IvisitedParislastyear.'Focus2:PresentPerfectTense核心功能(CoreFunction):描述在过去不确定时间发生的动作，我们关注的是现在的结果或经验。时间状语(TimeAdverbials):•already•yet•just•ever/never•since/for例句:'IhavevisitedParistwice.'ConfusingPair:Beentovs.GonetoHavebeento...(去过某地)含义:去过某地，已经回来例句:'Shehasbeentothelibrary.Sheisherenow.'Havegoneto...(去了某地)含义:去了某地，还未回来例句:'Hehasgonetothelibrary.Heisnothere.'Side-by-SideComparison一般过去时现在完成时时间Specific(yesterday)Unspecified(already)焦点TheactionitselfTheresult/experience例句Ilostmykeysthismorning.Ihavelostmykeys.(Ican'tfindthemnow!)Practice1:FillintheBlanks用适当的一般过去时或现在完成时填空:1.I_______(visit)themuseumlastSunday.2.She_______(never/be)toBeijing.3._______you_______(see)thenewfilmyet?4.They_______(go)totheparkyesterday.5.I_______(lose)mykeys.Ican'tfindthem!Practice2:SpottheMistakes找出下划线部分的时态错误并改正:1.IhavevisitedParislastyear.2.DidyoueverbeentoLondon?3.Shehasgonetothelibrary.Sheisherenow.4.Ididn'tfinishedmyhomeworkyet.5.Hewasneverseethatmovie.Summary:HowtoChoose?判断口诀(MemoryTip)过去时间点，过去式来填；结果连现在，完成时最快！Since,for,already,have别忘记；Yesterday,ago,did记心里。3-StepCheck:1.Isthereaspecifictime?(e.g.,yesterday)2.Istherearesultnow?(e.g.,I'mfull)3.Aretherekeywords?(e.g.,yet,already)DialoguePrep:MyTravelExperience询问经验:—Haveyoueverbeento...?—Yes,Ihave./No,Ihaven't.询问细节:—Whendidyougothere?—Iwentthere...(lastyear/in2022).描述旅行:—Whatdidyoudothere?—Isaw.../Iate.../Ivisited...当前状态:—Ihavealreadyvisited...—Ihaven'tbeento...yet.RolePlay:TravelTalkExampleDialogue:A:HaveyoueverbeentoBeijing?B:Yes,Ihave.Iwenttherelastsummer.A:Whatdidyouseethere?B:IvisitedtheGreatWall.Itwasamazing!A:HaveyouseentheForbiddenCityyet?B:No,Ihaven'tseenityet.Iwanttogoagain!ShareYourExperienceTopic:MyRecentLifeTellusaboutsomethingyoudidrecentlyandsomethingyouhavedonealreadytoday.Example:'IwenttotheparklastSunday.Ihavealreadyfinishedmylunchtoday.'Checklist:✅DidyouuseapasttimewordforSimplePast?✅Didyouuse'have/has'forPresentPerfect?MindMap:TenseComparison时态对比(TenseContrast)一般过去时(SimplePast)现在完成时(PresentPerfect)•SpecificTime•UnspecifiedTime•FinishedAction•Result/Experience关键词:yesterday,ago,last...,already,yet,just,in2020,justnowever,never,since,forBlackboardSummaryLesson86:Pastvs.Perfect1.SimplePastStructure:V-edKey:SpecificTimeEx:Isawityesterday2.PresentPerfectStructure:have/has+V-p.p.Key:Result/ExperienceEx:Ihaveseenitalready3.'Havebeento'(去过已回)vs.'Havegoneto'(去了未回)HomeworkTasksforToday:1.FinishtheexercisesinLesson86.2.RecitethetextofLesson8