资源描述
初中英语现在完成时课件一、谓语动词的构成:一、谓语动词的构成:have/has+动词过去分词动词过去分词疑问句疑问句一般疑问句式是把助动词一般疑问句式是把助动词have或或has提到主语之提到主语之前。前。(回答用回答用“Yes,have(has)“No,havent(hasnt)”)HaveyouknownSandyforalongtime?Yes,Ihave./No,Ihavent.Hassheeatenbreakfastyet?Yes,shehas./No,shehasnt.1、表表示示过过去去发发生生的的或或已已经经完完成成的的动动作作,但但对对现现在造成的影响或结果。在造成的影响或结果。Have you had your breakfast yet?I have read the book twice already.常和常和already,yet,never,just,before,ever,recently等标志性副词连用。等标志性副词连用。二、现在完成时表示的意义及标志性词二、现在完成时表示的意义及标志性词already和和yet的区别的区别already常用于常用于肯定句中或句末肯定句中或句末;yet常用于常用于一般疑问句或否定句末一般疑问句或否定句末。e.g.1.Tomhasalreadyfinishedhiswork.2.Tomhasntfinishedhisworkyet.2)表表示示过过去去某某个个动动作作(延延续续性性动动词词),持持续续到到现现在在,甚甚至至还还会会继继续续下下去去的的动动作作或或状状态态,常常与与包包括括现现在在在在内的一段时间的状语连用。内的一段时间的状语连用。you have studied English for 6 years.Tom has lived in Beijing since 2008.for+一段时间一段时间since+过去时间点过去时间点Since+一段时间一段时间+agoSince+从句(从句用一般过去时)从句(从句用一般过去时)谓语只可用延续性动词谓语只可用延续性动词.Ive lived here for 8 years.Ive lived here since 2008.Ive lived here since 8 years ago.Ive lived here since I was born.1.1.短暂性动词短暂性动词和延续性动词和延续性动词(前面为短暂性动词前面为短暂性动词)leave=be away frombegin=be onborrow=keepbuy=havedie=be dead marry=be married这本书露西已经借了一个月了。这本书露西已经借了一个月了。Lucy has kept the book for a month.他爷爷已经去世五年了。他爷爷已经去世五年了。His grandpa has been dead for five years.三、现在完成时的基本用法三、现在完成时的基本用法2 2、have gone to have gone to 与与have been tohave been to的区别:的区别:have gone to:“去了某地去了某地”,表示某人在路上,表示某人在路上,或者在目的地;已不在原地。或者在目的地;已不在原地。have been to:“曾去过某地曾去过某地”,说话时人已不在某地了,已经回来。说话时人已不在某地了,已经回来。He has been to Xian twice.他曾经去过西安两次他曾经去过西安两次。(已经回来了)。(已经回来了)You cant find him.He has gone to Xian.你找不到他。他去西安了你找不到他。他去西安了。(还没回来)。(还没回来)3、现在完成时与一般过去时的区别、现在完成时与一般过去时的区别现在完成时属于现在时态的范围现在完成时属于现在时态的范围,不能不能和表示过去和表示过去的时间状语连用,如的时间状语连用,如yesterday,last night,three weeks ago,in1990等等.而而一般过去时只表示过去的动一般过去时只表示过去的动作或状态,和现在没有关系作或状态,和现在没有关系。I have seen the film twice.I saw the film last week.He has lived here since 1993.He lived here in 1993.1.play 2.carry 3.name4.stop 5.go四、现在完成时练习四、现在完成时练习1,写出下列写出下列动词动词的的过过去式和去式和过过去分去分词词played playedcarried carriednamed named stopped stoppedwent gone2、用already和yet的填空1.Tomhasfinishedhiswork.2.Tomhasntfinishedhiswork .3.Haveyoufinishedit?alreadyyetyet3,用用for和和since填空。填空。_a week_a long time_1997 _two weeks_three years ago _ last monthforforforsincesincesince 4,用用have been to,have gone to填空。填空。1.We Yangzhou already.2.My sister the shop.She will be back in two hours.3.My parents the Great Wall twice.4.She Shanghai.She isnt here.have been tohave been tohas gone tohas gone toGood-bye!Thanks,everyone
展开阅读全文