英语十六大时态总结笔记 现在完成时和现在完成进行时的区别

现在完成时和现在完成进行时的区别  

一、现在完成时,1、表示过去开始并持续到现在的动作。（动词必须是持续动词）,China has changed a great Deal in the past 20 years. ,2、强调过去动作对现在的影响和结果。（可以使用非持续动词）,Where have you put the dictionary? I can't find it anywhere.,3、表示反复性或习惯性。常常与often, frequently及表示次数之类的词连用。,I have watched him appear on TV several times., ,二、现在完成进行时,1、表示过去某时开始的动作一直持续到现在，并在持续期间内不断进行着。,I have been working for five years. ,It has been raining since last Friday.,2、表示重复的动作。,Jim has been ringing John every night for the last week., ,三、区别,1、现在完成时表示动作业已完成，而用现在完成进行时谈论未完成的动作。,I have painted this room.（I’ve finished painting it.）,I have been painting this room.（I haven’t finished painting it.）,2、现在完成时关注动作的结果，尤其是谈到数字或数量时；而现在完成进行时关注动作本身，特别是解释动作可见的结果时。,He’s run three miles. (the result: He’s covered the distance of three miles.),He’s been running for an hour. (the activity and its consequences: this is what he’s been doing for the last hour and why he is exhausted now.),3、现在完成进行时表示重复的动作时，不能同表示具体数字的词并用。,I’ve posted a dozen postcards, but received none.,I’ve read this book several times.,I’ve been posting postcards since early December.,4、现在完成进行时带有较为强烈的感情色彩。,You have been disturbing me.,5、许多状态动词不能用完成进行时。,I’ve known that for a long time. ,The strike has lasted six months.,6、有少数动词用两种时态都可以，但若强调时间长度时用完成进行时较好。,They have been working this term.,They have worked very well this term.