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1、关于现在完成时公开课第1页，讲稿共36张，创作于星期二Studying aims1.现在完成时的构成 2.现在完成时的主要用法 及相关的时间状语 3.短暂性动词与时间段的关系 4.have been 与have gone 比较 5.与一般过去时的用法比较第2页，讲稿共36张，创作于星期二夏天还会远吗夏天还会远吗?will it still be far in summer?春天已经来了春天已经来了,Spring has already come,第3页，讲稿共36张，创作于星期二现在现在完成完成时态时态Springhas already come.第4页，讲稿共36张，创作于星期二一)构成:h
2、ave/has+动词动词过去分词过去分词第5页，讲稿共36张，创作于星期二基本结构基本结构have/has+done 助动词助动词（可以帮助（可以帮助构成肯定、疑问和否构成肯定、疑问和否定句）定句）第6页，讲稿共36张，创作于星期二1.He has cleaned his room.(写一个一般疑问句）写一个一般疑问句）Has he cleaned his room?2.She has lived in London for four years.(划线部分提问）划线部分提问）How long has she lived in London?第7页，讲稿共36张，创作于星期二3.He has
3、been to China,_ _?（写出反义疑问句部分）（写出反义疑问句部分）hasnt he 4.They have come back from work.(写否定句）写否定句）They havent come back from work.第8页，讲稿共36张，创作于星期二(一)表示过去发生的动作或事情对现在的影响和产生的结果.它强调的是过去的动作同现在的联系.常用的时间状语有already,yet,ever,never,just,before等.现在完成时的主要用法现在完成时的主要用法第9页，讲稿共36张，创作于星期二A:_ your brother _ his homework y
4、et?(finish)B:Yes,he s already done it.Key Key wordswordsHas finishedyet already 注意：注意：already 用于肯定句，用于肯定句，yet 用于疑问句和否定句中用于疑问句和否定句中第10页，讲稿共36张，创作于星期二A:_ you ever _ to the park?(be)B:No,never.Key Key wordswordsHave been yet already ever never 注意：注意：ever 曾经曾经 用于疑问句中用于疑问句中 never 从不从不 带有否定意义带有否定意义第11页，讲稿
5、共36张，创作于星期二I _ just _ the desk,you can take it to your classroom.(mend)Key Key wordswordshave mended yet ever never just already Just 刚刚刚刚 与现在完成时连用与现在完成时连用 一般置句中一般置句中Just now 刚才刚才 与一般过去时连用与一般过去时连用第12页，讲稿共36张，创作于星期二(二)表示一个从过去开始,一直持续到现在,有可能继续下去的动作或状态.通常和for或since引导的时间状语连用.第13页，讲稿共36张，创作于星期二Tom _ in th
6、e factory since he left school ten years ago.(work)Key Key wordswordshas worked since since 后面带后面带过去时间过去时间或或有一般过去时有一般过去时的句子的句子第14页，讲稿共36张，创作于星期二A:How long _ you _ in this school?(teach)B:For 6 years.Key Key wordswordshave taught since for +一段时间一段时间第15页，讲稿共36张，创作于星期二We _ only _ 100 trees so far.(plan
7、t)Key Key wordswords have planted so far 到目前为止到目前为止第16页，讲稿共36张，创作于星期二Key Key wordswords yet ever never since for just before already so far in the past 10 years twice 也可以是其他表示次数的词也可以是其他表示次数的词how long第17页，讲稿共36张，创作于星期二 He has bought the book.He has bought the book for a week.He has had the book for a
8、 week.buyhavecome/go/get tobe injoin be inbe a memberleave be away borrow keep begin be on finish be over die be dead reture be back 第18页，讲稿共36张，创作于星期二She has bought the computer for two years.hadbuyhave/has had第19页，讲稿共36张，创作于星期二How long have you come to the United States？been income tohave/has been
9、 in buyhave/has had第20页，讲稿共36张，创作于星期二Ann has gone to China since three months ago.been income tohave/has been inbuyhave/has hadgo tohave/has been in第21页，讲稿共36张，创作于星期二I have left Shanghai for 3 days.been away for 3 e tohave/has been inbuyhave/has hadgo tohave/has been ingot tohave/has been injoin hav
10、e/has been inhave/has been a soldier leave have/has been away 第22页，讲稿共36张，创作于星期二I have borrowed the dictionary since 3 days ago.kept come tohave/has been inbuyhave/has hadgo tohave/has been ingot tohave/has been injoin have/has been inhave/has been a soldier leave have/has been away borrow have/has
11、kept 第23页，讲稿共36张，创作于星期二The film has begun for 10 minutes.been on come tohave/has been inbuyhave/has hadgo tohave/has been ingot tohave/has been injoin have/has been inhave/has been a soldier leave have/has been away borrow have/has kept begin have/has been on 第24页，讲稿共36张，创作于星期二The concert has finish
12、ed for half an hour.been over come tohave/has been inbuyhave/has hadgo tohave/has been ingot tohave/has been injoin have/has been inhave/has been a soldier leave have/has been away borrow have/has kept begin have/has been on finish have/has been over 第25页，讲稿共36张，创作于星期二His dog has died for two years.
13、been dead come tohave/has been inbuyhave/has hadgo tohave/has been ingot tohave/has been injoin have/has been inhave/has been a soldier leave have/has been away borrow have/has kept begin have/has been on finish have/has been over die have/has been dead 第26页，讲稿共36张，创作于星期二 have been to have gone to h
14、ave been in去过某地已经回来去过某地已经回来去过某地已经回来去过某地已经回来常与常与ever,never,ever,never,once,twice,once,twice,连用连用 一直留在某地一直留在某地一直留在某地一直留在某地与与for/sincefor/since连用连用用用how long how long 提问提问去了某地去了某地去了某地去了某地还没回来还没回来还没回来还没回来只用于第三人称只用于第三人称 Her sister _ Australia,She left this morning.has gone tohas gone to 第27页，讲稿共36张，创作于星期
15、二 have/has have/has been to have/has have/has gone to have/has have/has been in去过去过去过去过常与常与ever,never,ever,never,once,twice,once,twice,连用连用 在在在在与时间段连用与时间段连用用用how long how long 提问提问去了去了去了去了说话时某人不在说话时某人不在只用于第三人称只用于第三人称 A:How long _ you _ China?B:I _ here for 3 years.have been have been in have been in
16、 第28页，讲稿共36张，创作于星期二 have/has have/has been to have/has have/has gone to have/has have/has been in去过去过去过去过常与常与ever,never,ever,never,once,twice,once,twice,连用连用 在在在在与时间段连用与时间段连用用用how long how long 提问提问去了去了去了去了说话时某人不在说话时某人不在只用于第三人称只用于第三人称 A:_ you ever _ the city?B:No,never.Have been to 第29页，讲稿共36张，创作于星期
17、二 与一般过去时的用法比较与一般过去时的用法比较与一般过去时的用法比较与一般过去时的用法比较 现在完成时和一般过去时都是说过现在完成时和一般过去时都是说过去的事情，去的事情，但现在完成时注意的不是但现在完成时注意的不是事情本身事情本身,而是强调事情与现在保持而是强调事情与现在保持的某种密切联系（如现在的结果，影的某种密切联系（如现在的结果，影响响,一直延续到现在等）一直延续到现在等）;而一般过去时，而一般过去时，则只则只讲述讲述发生在过去的动作和事情发生在过去的动作和事情与现与现在没有关系在没有关系。上一页下一页主菜单第30页，讲稿共36张，创作于星期二 We _ each other sin
18、ce childhood.We _ each other when we were young.knowknow have known knew 第31页，讲稿共36张，创作于星期二 I _ him just now.(see)I _ just _ my pen.(lose)saw have lost 第32页，讲稿共36张，创作于星期二 A:When_ you _ the film?B:I _ it two months ago.(see)The writer _ several story-books since 5 years ago.(finish)did has finished s
19、ee saw 第33页，讲稿共36张，创作于星期二用动词的适当形式填空1.-_ you _your pen?(mend)-Yes,I _.-When_ you _ it?-I _ it yesterday.2.-How do you like the film?-I _(not see)such a moving film before.3.Millies sister _(join)the club last week.So she _(be)in the club for nearly one week.Have mended have did mend mended havent see
20、n joined has beenExercises第34页，讲稿共36张，创作于星期二4.My father_(give)up _(smoke).He doesnt _(smoke)now.5.The Green family_(not come)back yet from the cinema.They_(go)to see a film one hour ago.has given smoking smoke havent come went 第35页，讲稿共36张，创作于星期二6.She has known Sam_ nine years.(for,never,since)7.They have_arrived.(ever,just,yet)8.Have you_ ridden a horse?(ever,for,yet)9.She has known Fred_ they were at primary school.(already,just,since)10.We have not completed the project_.(already,for,yet)for just ever since yet第36页，讲稿共36张，创作于星期二