牛津版八年级英语下现在完成时态ppt课件.ppt

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1、Present Perfect Present Perfect TenseTenseDesigner:Xue NaDesigner:Xue Na Chunhua Middle School Chunhua Middle School 经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用Present perfect tense 现在完成时现在完成时v构成:v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+过去分词经

2、营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用v1.都表示过去发生的事v2.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；v3.一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.）presentpastI have lived here for two yearsI have lived here for two yearsI lived there 2 years agoI lived there 2 years ago经营者提供商品或者服务有欺

3、诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用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.经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用Adverbs of time before,by now(so far),once,twice,just,re

4、cently yet(否否/疑疑),already(肯肯),ever,never,all ones life,in/during the past/last 5 years,经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用Exercisesv1.I _(have)lunch already.v2.Has the train_(arrive),yet?v3.Tome _ never_(be to)China.v4.The twin _just _(see)my father.v5.The twins _(see)m

5、y father just now.v6.Many tall buildings _(build)in the past 5 years.have hadarrivedhasbeen tohasseensawhave been built经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用v用法二用法二：for+段时间段时间 since+点时间点时间 since+句子（过去时）句子（过去时）E.g.Kate has lived here for 3 years.Kate has lived here since 3

6、years ago.Kate has lived here since she came to China.表示过去某个时间开始的动作表示过去某个时间开始的动作或存在的状态，一直持续到现或存在的状态，一直持续到现在并可能还将持续下去。动词在并可能还将持续下去。动词使用延续性动词。常与使用延续性动词。常与forfor或或sincesince引导的时间连用引导的时间连用经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用常见非延续性动词和延续性动词的转变常见非延续性动词和延续性动词的转变varrive/come/go t

7、o die vbecome a borrowvLeave/move vbuy openvjoin vstart/begin finish/endvcatch a cold get up vget to know get out vclose wake upvgo to sleepvbecome interested in be in be deadhavekeepbe away/be out be abe in/a member ofbe openbe onbe overhave a coldbe upknowbe outbe closedbe awakebe asleep/sleepbe i

8、nterested in经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用Exercises vHis father has died.(for 2 years)vThe football match has begun.(since9:00a.m)vThe twins have joined the army.(since they are 18years old)vMy teacher has just left Nanjing.(for 3 days)His father has been dead for

9、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经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用重点句型重点句型:It is/has been+段时间段时间+since从句从句 段时间段时间+has passed+s

10、ince从句从句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.经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用v1.这本书我借了一个月了。I borrowed this book a month ago.It is/has been a month

11、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.经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用Have/has gone tohave/has been to have/has been invhave/has gone to:已经去了或在途中，还没有返回；vhave/has been to:曾今去过某地，现在已经回

12、来了,后面可接表示“次数”的状语;vhave/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。经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用Exercises vTom 在哪儿？他去书店买书了。v我在北京待了5年了。vJack 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

13、 Shanghai twice.经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用Correcting v1.I have borrowed the book for 3 months.v2.My bother has joined the army since he was 18.v3.Jack and Tom have lived here since 5years.v4.The film has been on since I have come to the cinema.v5.When has Mr.Li

14、 caught a bad cold?have kepthas been in/been a member of the armysince 5 years ago/for 5 yearscame didcatch经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用v6.Ten years have passed since they got married.v7.Jim has gone to Beijing for 2 years.v8.What time have the factory opened?v9.I

15、 have gone to Chunhua Middle School twicehashas been indidopenbeen to经营者提供商品或者服务有欺诈行为的，应当按照消费者的要求增加赔偿其受到的损失，增加赔偿的金额为消费者购买商品的价款或接受服务的费用Exercises vI 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 _(ta

16、ke)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 myself.“It must_ (be)Mr.Brown.He _(take)photos.”We_ (enjoy)that day.We _ (go)back to America next week.have studied takesto playWas taken wakedjumpbeis takingenjoyedwill go