现在完成时公开课(4).ppt

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1、一、动词过去式、过去分词的构成一、动词过去式、过去分词的构成1.regular form 规则变化规则变化（1）finishfinished-finished play-played-played（2）live-livedlived move-moved-moved（3）carry-carried-carried try-tried-tried(去去y改改i加加ed)（4）stop-stoppedstopped chatchatted-chatted (重读闭音节重读闭音节,双写加双写加ed)2.irregular form 不规则变化不规则变化 (1)AAA型型：cut-cut-cut re

2、ad-read-read (2)ABB型型：feel-felt-felt make-made-made (3)ABC型型：forget-forgot-forgotten see-saw-seen (4)ABA型型：come-camecome run-ranrun (5)AAB型型：beat-beat-beaten 1.过去发生的动作对现在造成的影响或结果过去发生的动作对现在造成的影响或结果 2.动作发生在过去动作发生在过去,持续到现在的动作或状态持续到现在的动作或状态,有可能继有可能继续持续下去续持续下去 （常用延续性动词）（常用延续性动词）have breakfast我刚吃过饭。我刚吃过饭。

3、(现在我不饿现在我不饿)Im not hungry nowmoved herein 2005I still live here05年起我就住这年起我就住这。过去过去现在现在二、现在完成时用法二、现在完成时用法I have just had my breakfast.I have lived here since 2005.(现还住现还住这这)三、现在完成时的结构：三、现在完成时的结构：我看过这部电影。我看过这部电影。I have seen this film.他刚去图书馆了。他刚去图书馆了。He has just gone to the library.中国近来发生了巨大变化。中国近来发生了巨

4、大变化。Great changes have taken place in China recently.现在完成时现在完成时:主语第三人称单数主语第三人称单数-hashave/has+过去分词过去分词四、与现在完成时连用的时间状语及用法四、与现在完成时连用的时间状语及用法1：1.already 已经2.yet 已经，还3.never 从不4.ever 曾经5.just 刚刚6.before 以前 (多用于肯定句谓语动词前或句末)(多用于疑问句、否定句句末)(表示否定)(用于疑问句和肯定句)(位于肯定句谓语动词之前)(位于句末)四、四、与现在完成时连用的时间状语及用法与现在完成时连用的时间状语

5、及用法2：7.so far 至今为止8.recently 最近9.In the past/last few years 在以往的几年来10.these days/years这几天/这几年11.for+一段时间12.since+时间的起点13.How long 多久（位于句首加逗号或句末)（常位于句末）（位于句首或句末）(位于句首或句末）（位于句末）（位于句末）五、要点及难点区别：五、要点及难点区别：(1)_you ever _to Beijing?No,_.(2)Where is Mike?He _ _ to Beijing already.(3)Where _you _?I couldnt

6、find you.(4)_your uncle _to the Great Wall yet?No,he _./_ _.Hes leaving tomorrow.(5)Mr Smith _ _ _Japan for three years.have been tohave gone tohave been in 注意：地点副词here/there/home/abroad 等前省略 to.翻译：1、他出国了。_ 2、他出过国。_Havebeenneverhasgone have beenHas gonehasntNotyethasbeeninHe has gone abroad.He has b

7、een abroad.表示表示“曾经去过某地曾经去过某地”（在眼前，人已（在眼前，人已回）回）表示表示“已经去某地去了已经去某地去了”（不在眼前人未回）（不在眼前人未回）表示去了且还在那表示去了且还在那(和和for,since,How long连用连用)现在完成时与一般过去时的区别：现在完成时与一般过去时的区别：1.I _(teach)here for ten years.2.I _(teach)here ten years ago.3.He _(leave)home already.4.He _(leave)home yesterday.5.I cant find my bag.Who _(

8、take)it away?6.Who _(take)away my bag just now?现在完成时：现在完成时：一般过去时：一般过去时：have taughttaughthas leftlefthas takentook表示过去发生或已完成的动作对现在造成的影响表示过去发生或已完成的动作对现在造成的影响或结果，或结果，和现在有关，不能和现在有关，不能和表示过去的时间状和表示过去的时间状语连用。语连用。只表示过去的动作或状态，强调过去，只表示过去的动作或状态，强调过去，和现在无关，和现在无关，可可和表示过去某一时间点的时间状语连用。和表示过去某一时间点的时间状语连用。（还在这教还在这教）（

9、不知是否还在教不知是否还在教)（人不在家已走）人不在家已走）（不涉及现在在哪不涉及现在在哪）短暂性动词与延续性动词用法的区别短暂性动词与延续性动词用法的区别:1.写出下列动词的延续性动词写出下列动词的延续性动词 borrow-_ buy-_ leave-_ begin/start-_ join-_ die-_ close-_ open-_ 2.用用since与与for填空填空 _ twenty minutes _an hour ago _yesterday _ last monthbe away(from)be onkeephavebe deadbe in/be a member ofbe c

10、losedbe open(adj.)forsincesincesince短暂性动词变为延续性动词常用以下形式：短暂性动词变为延续性动词常用以下形式：be+形容词形容词/副词副词/介词短语介词短语/名词名词 六、当表示开始于过去并持续到现在的动作或状态时六、当表示开始于过去并持续到现在的动作或状态时,延续性动词延续性动词可以和表示一段时间的状语连用可以和表示一段时间的状语连用.for+since+since+since+1.这辆自行车我已买了三年了。这辆自行车我已买了三年了。I _ _the bike _ three years.I _ _ the bike _three years _.2.他

11、去年参军了。他去年参军了。He _ _ _the army _ last year.He _ _ _ _ of the army _ two years.的的过去分词过去分词表状态的词表状态的词延续性动词延续性动词havehas主语主语+一段时间一段时间时间起点时间起点一段时间一段时间+ago一般过去时一般过去时的从句的从句havehadforhavehadsinceagohasbeeninsincehasbeenamemberfor含含since的典型句子的典型句子:Its(has been)+一段时间一段时间+since从句从句(过去时过去时)一段时间一段时间+has passed+sin

12、ce从句从句(过去时过去时)1.Its half an hour _ he _here.（到达）（到达）Half an hour_ _since he _ here.2._ twelve years _she _.（去世）（去世）Twelve years _ _ since she _.sincearrivedhas passed gotItssincediedhaspasseddiedGo to find five friends and make a survey.Use the questions:Have you yet?/Have you ever?ActivitiesNamehav

13、e lunchtell a lie ride a horsesee a fashionshowPractice in pairsTell your partner the result of your surveywith the Present Perfect Tense.For example:A:Hello!Could you tell me something about your friends?B:Yes,of course.Jim has ever Kate has alreadyMike has never What about your friends?China has_

14、a lot these years.Chenglong has _ upsmoking.So far,air pollution has _many problems.China has _ _ the One-child policy to control the population.看看图图写写话话improved/changedgivencausedcarried out中考链接：近年有关中考题中考链接：近年有关中考题()1-I_Fujian Museum twice.How about you?（06福州中考题）福州中考题）-Never.I hope to visit it soon

15、.A.have gone to B.have been to C.have gone D.have been()2.-_you ever _Chinese mooncakes,Diana?-No,never.But I have had noodles.(08年福州中考题年福州中考题)A.Do,try B.Will,try C.Did,try D.Have,tried()3.-Chinas 24th science research team_ at Changcheng Station on January 5,2008.(08哈尔滨中考题）哈尔滨中考题）-Wonderful!Our sci

16、entists _ a lot in this field already.A.have arrived;improved B.arrived;has improved C.arrived;have improved()4.Help!WangQiang _ an accident.（08天津中考题天津中考题)A.was having B.had had C.has had D.will have()5.-How long have Mr and Mrs _?-For more than twenty years.(08无锡中考题）无锡中考题）A.married B.had married C.

17、got married D.been marriedBDCCD口语应用口语应用:(2007年福州中考题)A:The plane is late,isnt it?B:Yes,it is.A:_B:No,I dont.Im just a tourist.A:_B:Yes.Ive been there three times.A:_B:Mount Gu,XichanTemple,Jiangbin Park and so on.A:What do you think of Fuzhou?B:Its beautiful._A:How do you like Min Food?B:Very much._

18、I must go now.Bye-bye!A:Bye!A.I dont think so.B.Do you work here in Fuzhou?C.Oh,heres my plane at last.D.What places have you been to?E.How long have you stayed in Fuzhou?F.Have you ever been there before?G.Great changes have taken place these years.B F D G CSummary1、掌握过去分词、掌握过去分词规则规则及及不规则不规则变化形式。变化

19、形式。2、掌握与现在完成时连用的词，如：、掌握与现在完成时连用的词，如：already,yet,ever,never,just,before,recently,so far,for,since3、区别、区别have(has)gone to,have(has)been to,have(has)been in的用法。的用法。4、掌握、掌握for与与 since的用法区别。的用法区别。5、掌握、掌握短暂性动词短暂性动词与与延续性动词延续性动词用法及其转化形式。用法及其转化形式。6、区别、区别现在完成时现在完成时与一般现在时一般现在时的用法。Project:Discuss in groups.根据表格

20、中的信息根据表格中的信息,写篇值日报告写篇值日报告,介绍你的家乡介绍你的家乡深圳深圳 报报告告内内容容日期日期:2010年年12月月6日日天气天气:晴晴出勤情况出勤情况:满满勤勤深圳深圳概况概况1.位于广位于广东东省省,风风景景优优美美;2.历历史悠久史悠久,人口人口 6,700,000;3.这这些年些年发发生巨大生巨大变变化化,新建了新建了许许多高楼、道路等；多高楼、道路等；4.有很多名有很多名胜胜，如：梧桐山、大梅沙等。，如：梧桐山、大梅沙等。其他其他 一句祝福的一句祝福的话话 提示词提示词：history,population,places of interest,Mount WUTON

21、G要求：1）必须用上所有的信息，语句通顺，书写规范；2）词数80左右，已给出的句子不计入总词数。Good morning,everyone!Im on duty today._ _Thats all.Thank you.Homework1.Go on reviewing the Present Perfect Tense,looking through your notes.2.Go on finishing the composition about my hometown.3.Learn the Past Tense and Past Participle of the verbs by heart tomorrow were going to have an exam.