现在完成时ppt精品.ppt

Present Perfect Tense,Present perfect tense 现在完成时,构成: 用法一：,表示过去发生的某一动作对现在造成的影响或产生的结果.现在完成时这一时态强调是过去动作与现在的联系,也就是强调现在的影响和结果.,have/has + 过去分词,1.都表示过去发生的事 2.现在完成时强调过去和现在的联系，不能和具体的时间状语连用； 3.一般过去时强调过去发生的事或状态与表示过去的具体时间连用（last, ago, yesterday, etc. ）,present,past,I have lived here for two years,I lived there 2 years ago,eg.1. He had his breakfast at 6:00 He has had his breakfast. 2. When did you come here? I watched the football match on TV at 9:00.,Adverbs of time,before, by now (so far), once, twice, just, recently yet(否/疑), already(肯), ever, never, all ones life , in /during the past /last 5 years,Exercises,1. I _(have) lunch already. 2. Has the train_ (arrive), yet? 3.Tome _ never_ (be to ) China. 4. The twin _just _(see) my father. 5. The twins _(see) my father just now. 6. Many tall buildings _(build) in the past 5 years.,have had,arrived,has,been to,has,seen,saw,have been built,用法二： for+段时间 since+点时间 since+句子（过去时） E.g. Kate has lived here for 3 years. Kate has lived here since 3 years ago. Kate has lived here since she came to China.,表示过去某个时间开始的动作或存在的状态，一直持续到现在并可能还将持续下去。动词使用延续性动词。常与for或since引导的时间连用,常见非延续性动词和延续性动词的转变,arrive/come/go to die become a borrow Leave/ move buy open join start/begin finish/ end catch a cold get up get to know get out close wake up go to sleep become interested in,be in,be dead,have,keep,be away / be out,be a,be in/a member of,be open,be on,be over,have a cold,be up,know,be out,be closed,be awake,be asleep/ sleep,be interested in,Exercises,His father has died. (for 2 years) The football match has begun.(since9:00a.m) The twins have joined the army. (since they are 18years old) My teacher has just left Nanjing. (for 3 days),His father has been dead for 2 years.,The football match has been on since 9:00 a.m.,The twins have been soldiers/ been in the army since they are 18years old.,My teacher has been away from Nanjing for 3 days,重点句型: It is/ has been+段时间+since从句 段时间+has passed+ since从句,eg. 他死了两年了： He died two years ago. He has been dead for two years /since two years ago It is/ has been two years since he died. Two years has passed since he died.,1. 这本书我借了一个月了。,I borrowed this book a month ago.,It is/ has been a month since I borrowed the book.,I have kept the book for a month. /since a month ago.,A month has passed since I borrowed the book.,Have/has gone to have/has been to have/has been in,have/has gone to:已经去了或在途中，还没有返回； have/has been to:曾今去过某地，现在已经回来了,后面可接表示“次数”的状语; have/has been in:表示某人“已在某地停留一段时间，现仍在那里”，其后常带表示一段时间的状语。,Exercises,Tom 在哪儿？ 他去书店买书了。 我在北京待了5年了。 Jack 去过上海两次了,-Where is Tom? -He has gone to the bookshop to buy some books.,I have been in Beijing for 5 years.,Jack has been to Shanghai twice.,Correcting,1. I have borrowed the book for 3 months. 2. My bother has joined the army since he was 18. 3. Jack and Tom have lived here since 5years. 4. The film has been on since I have come to the cinema. 5. When has Mr. Li caught a bad cold?,have kept,has been in/ been a member of the army,since 5 years ago/ for 5 years,came,did,catch,6. Ten years have passed since they got married. 7. Jim has gone to Beijing for 2 years. 8.What time have the factory opened? 9.I have gone to Chunhua Middle School twice,has,has been in,did,open,been to,Exercises,I am an American boy I came to China two years ago. I _(study) here for two years. My father often (take) me_ (play) football on the playground. Last week I _ (take) to the park by him. We saw a lot of monkeys (jump) in the tree. I heard a voice from behind When I (walk ) along the river. I thought mysel