单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,#,Section A,GF-4c,Unit,10,Ive had this bike for three years.,Section A Unit 10,1,Unit10 Ive had this bike for three years.,=Ive had this bike,since three years ago,.,=Its three years,since I bought this bike,.,=I bought this bike,three years ago.,Unit10 Ive had this bike for,2,How long have you had that bike over there?,Ive had it,for,three years.,How long has his son owned the train and railway set?,Hes owned it,since,his fourth birthday.,Have you ever played football?,Yes,I did when I was little,but I havent played,for,a while now.,Grammar Focus,How long have you had that bik,3,现在完成时：,表示过去发生或已经完成的某一动作对现在造成的影响或结果，或从过去开始一直延续到现在的动作或保存的状态，强调的是现在的情况，,不能和表示过去的时间状语连用（如：in 1990，last Sunday 等）。,一般过去时：,一般过去时只表示过去的动作或状态，和现在不发生关系（即动作或状态在现在已经结束），它可以和表示过去的时间状语连用。,现在完成时,与一般过去时的区别：,have/has+V,过去分词,现在完成时：表示过去发生或已经完成的某一动作对现在造成的影,4,4.现在完成时中,ever,never,just,already,yet,在用法和意思上有什么区别？,在学习这一概念时应注意常与现在完成时连用的几个副词,:,already,just,ever,yet,never等,.,already,just,多用于肯定句中,ever,yet,多用于疑问句和否定句中。,eg:,Ihave,already,finishedmyhomework,.,我已经做完家庭作业了。,Hehas,just,hadhismeal他刚吃过饭。,H,aveyou,ever,sungthisEnglishsong？你曾唱过这首英文歌吗？,Theyhaven,tstarted,yet,.他们还没有,动身,。,Wehave,never,heardofit,.,我们从没听说过这件,事,。,4.现在完成时中ever,never,just,a,5,(1).,Have(has)beenin,意为“已经在某地呆了多长时间”，常与,表示一段时间的状语,连用。,Mr.Brown,hasbeenin,Shanghaiforthreedays.布朗先生来上海已经有三天了。,They,havebeenin,Canadaforfiveyears.,他们到加拿大有五年了。,5.,havebeenin,havebeento,与,havegoneto,的用法,(1).Have(has)beenin意为“已经在,6,(2).,Have(has)beento,意为“曾经去过某地”，表示现在已经不在那里了。可与,just,ever,never,等连用。,如：I,ve,just,beentothepostoffice.,我刚才去邮局了。,Haveyou,ever,beentoHangzhou?,你曾经去过杭州吗？,Maryhas,never,beentotheGreatWall.,玛丽从未去过长城。,(2).Have(has)beento 意为“曾经去,7,(3).,Have(has)beento,后面可接,次数,，,表示去过某地几次。,如：IvebeentoBeijing,threetimes,.,我去过北京三次。,Theyhavebeentothatvillage,severaltimes,.,他们去过那个村庄好几次了。,(4).,Have(has)goneto,意为“到某地去了”，表示到了某地或正在去某地的途中。总之，说话时该人不在现场，一般,不用第一、二人称代词作主语。,如:WhereisTom?汤姆在哪里？,Hehasgonetothebookshop.他到书店去了。,(3).Have(has)beento后面可接次数,8,表示从过去已经开始持续到现在的动作或状态，可以和表示“从过去某一时刻延续到现在的一段时间状语”连用，如“,for+,时间段,”、“,since+,过去时间点,”、“,since+,过去时的从句,”、“,since+,一段时间,+ago,”,。且,for,与,since,引导的时间状语可以相互转换。,Present Perfect Tense,现在完成时,过去的动作或状态，一直持续到现在，,for,、,since,把时间带。,表示从过去已经开始持续到现在的动作或状态，可以和表示“,9,e.g.My uncle,has worked,at this factory,for,ten years.,=My uncle,has worked,at this factory,since,ten year ago.,I,velived,here,since,1990,自从,1990,年以来我就住在这里。,I,haventseen,him,for,threeyears.,我三年没有看见他了。,e.g.My uncle has worked at th,10,*He has,come,to,Beijing,for,two,years,.,He has,been,in Beijing for two years.,*He has,bought,that book,for,three,weeks,.,He has,had,that book for three weeks.,*He has,joined,the Army,for one and a half years,.,He has,been,in the army for one and a half years.,It is,two years,since,he came to Beijing.,It is,three weeks,since,he bought that book.,It is,one and a half years,since,he joined the Army.,*He has come to Beijing for tw,11,*His grandma has,died,for,nine,months,.,His grandma has,been,dead,for nine months.,It is,nine months,since,his grandma died.,*His grandma has died for nine,12,英语中有些动词的意义不能延续，表示的是一瞬间就结束的动作，这些动词被称为,非延续性,动词或,短暂性,动词，常见的如,come,leave,go,lose,see,begin,start,arrive,become,die,buy,borrow,close,join,reach,fall,get up,等。这类动词可以用于完成时态，但在肯定句中不能与表示动作延续的时间状语,for,或,since,短语连用。如：,正,:He has come back.,他已回来。,误,:He has come back for three days.,英语中有些动词的意义不能延续，表示的是一瞬间就结束的,13,若要表示“他回来已三天了”这样的意思，可以将动词改为,延续性动词,，或改变时间状语，或改用别的句型等，如译为：,He has been back for three days.,(,改变谓语动词,),He has been back since three days ago.,(,改变谓语动词,),He came back three days ago.,(,改变时间状语及动词时态,),Its three days since he came back.,(,改变句型,),若要表示“他回来已三天了”这样的意思，可以将动词改为,14,come,go,begin,start,become,join,end,die,buy,arrive,reach,borrow,lend,get to know,等这些短暂性动词如果要谈论一个动作发生在过去某个时间点，我们可以使用,ago,或一般过去时。如：,come,go,begin,start,be,15,在表示持续一段时间的句子中，应将,短暂性动词,转化为相同意义的,延续性动词,或状态动词。,初中英语中常见的有：,短暂性动词,延续性动词,go,leave,move,arrive,come,reach,join,become,buy,get(,得到,),be away(off),be out of,be here,be in+,某地,be in,be a(an)+,n,.,have,在表示持续一段时间的句子中，应将短暂性动词转化为相同,16,fall ill(asleep),finish,end,begin,start,begin to learn(work,read,rain),go out,get up,borrow,get to know,die,lose,be ill(asleep),be over,be on,learn,work,read,rain,be out,be up,keep,know,be dead,be lost,短暂性动词,延续性动词,fall ill(asleep)be ill(aslee,17,瞬间性动词 延续性动词,come be(in),buy have,borrow keep,leave be away,die be dead,stop be over,begin/start be on,open -be open,close -be,closed,瞬间性动词 延续性动词 come,18,put on wear,catch a cold have a cold,get to know know,go out be out,finish be over,fall asleep be asleep,join be in/be a member of,become be,make friends be friends,put on wear,19,4a,1.Jim is in Japan.He arrived there three days ago.,_,2.They are very hungry.Their last meal was ten hours ago.,_,_,Rewrite the sentences using,for,or,since,.,Jim has been in Japan for three days.,They havent had anything for ten hours./They havent had anything since ten hours ago.,4a1.Jim is in Japan.He arriv,20,3.I have a camera.I bought it in 2009.,_,4.I know Anna.I first met her three years ago.,_,_,5.