牛津版八年级英语下现在完成时态.ppt

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1、Present Perfect Present Perfect TenseTenseDesigner:Designer:XueXue Na Na ChunhuaChunhua Middle School Middle School 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

2、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 agoeg.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 b

3、efore,by now(so far),once,twice,just,recently yet(否否/疑疑),already(肯肯),ever,never,all ones life,in/during the past/last 5 years,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)my father just now.v6.Many

4、tall buildings _(build)in the past 5 years.have hadarrivedhasbeen tohasseensawhave been builtv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 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

5、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 to 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 interest

6、ed 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 interested inExercises 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

7、old)vMy 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重点句型重点句型:It is/has been+段时间段时间+since从句从句 段时间段时

8、间+has passed+since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.v1.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

9、a month./since a month ago.A month has passed since I borrowed the book.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。Exercises vTom 在哪儿？他去书店买书了。v我在北京待了5年了。vJack

10、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 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 bee

11、n on since I have come to the cinema.v5.When has Mr.Li caught a bad cold?have kepthas been in/been a member of the armysince 5 years ago/for 5 yearscame didcatchv6.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 have gone

12、to Chunhua Middle School twicehashas been indidopenbeen toExercises 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 _(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 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