初中现在完成时讲解(完整版).ppt

ThePresentPerfecttense PresentPerfectTense现在完成时 主语 have has 过去分词 pp 助动词 无意义 现在完成时的结构 Winterhasalreadycome willitstillbefarinspring 主语 have has 过去分词 pp 否定形式haven t havenot 过去分词hasn t hasnot 过去分词 疑问句把助动词have has放在句首 现在完成时的结构 注 主语若是第三人称单数助动词用has Youhaveplantedallthetrees Ihaveplantedallthetrees He shehasplantedallthetrees Theyhaveplantedallthetrees 区别have和has的用法 主语若是第三人称单数助动词用has 1 表示到现在为止已经完成或刚刚完成的动作 Nowwehaveplantedallthetrees Hehasjustcomeback Theyhavebuiltmanybuildingsinthiscity 现在完成时的用法 2 表示过去发生的动作 强调结果或对现在的影响 Someonehasbrokenthewindow 窗户现在是坏的 Ihavealreadylostthekey 我现在没有钥匙 Ihaven treadthatbookyet 不了解书的内容 Ihavejustcleanedmyhands 手是干净的 常与already 已经 yet 已经 just 刚刚 ever 曾经 等词连用 already 常用于肯定句中 yet 常用于否定句 疑问句尾 3 表示从过去开始并持续到现在的动作或状态 常与包括现在在内的一段时间的状语连用 ShehaslearnedEnglishfor5years HehaslivedinBeijingsince5yearsago since 自 以来 1 since 时间点Hehasstayedheresince5o clock 2 since 时间段 agoHehasstayedheresince5hoursago 3 since 从句ShehastaughtEnglishsincehecamehere for 长达 for 时间段Hehaskeptthebookfor2weeks since for的用法 用for或since填空 Mr BrownhashadhisTV 15years I vetakendrivinglessons lastmonth Mysisterhashadhercellphone amonth Myfriendshaven tvisitedme fewdaysago Wehaven tusedourcar alongtime Shehasn thadagoodcupofcoffee years Tomhaswornglasses hewas7yearsold for since for since for for since 注 并非所有for作为时间状语的句子都用现在完成时搞清一般过去时和现在完成时的区别 Iworkedhereformorethantwentyyears 我现在已经不在这里工作了 Ihaveworkedhereformorethantwentyyears 现在我仍在这里工作 疑难点 辨析havebeento和havegoneto MyfatherhasgonetoShanghaiforameeting 他 已经 去了上海 MyfatherhasbeentoShanghaiforameeting 他 曾经 去了上海 ShehasbeentoChina 她 曾经 去过中国 人已经回来了 havebeentosomeplace 曾经去过某地 已经回来 hasgonetosomeplace 某人去了某地 还没有回来 ShehasgonetoChinalastweek 上周她去了上海 人可能回来了也可能没回来 用have hasbeento have hasgoneto填空 1 Whereisyourbrother He theshop He llbebacksoon 2 youever toAmerica Yes I NewYorktwice 3 Hereyouareatlast Where you I London 4 David Australia I msurehe salreadyarrived 5 IsBennyhere No he theschoollibrary Heleftfiveminutesago hasgoneto Havebeento havebeento havebeen havebeento hasgoneto hasgoneto 9 He go toschoolonfooteveryday 10 you find yoursciencebookyet 11 Ifit be finetomorrow I llgowithyou 12 Thestudents read Englishwhentheteachercamein 13 Look Themonkey climb thetree 14 Mymother come toseemenextSunday 15 I velostmypen you see itanywhere goes have found is werereading isclimbing iscoming Have seen 1 I already see thefilm I see itlastweek 2 he finish hisworktoday Notyet 3 Myfather just come backfromwork Heistirednow 4 Where sLiMing He go totheteacher soffice 5 I work heresinceI move herein1999 6 SofarI make quiteafewfriendshere 7 Howlong theWangs stay here Fortwoweeks 8 I just finish myhomework have seen saw Has finished has come hasgone haveworked moved havemade have stayed have finished 1 have seen saw2 Has finished3 has come