作业帮have been 和had been 什么区别完全没懂= =估计问题也题错了还有been和Did差不多吗?= =
来源：学生作业帮助网 编辑：作业帮 时间：2024/05/04 10:01:06
have been 和had been 什么区别完全没懂= =估计问题也题错了还有been和Did差不多吗?= =
have been 和had been 什么区别
完全没懂= =
估计问题也题错了
还有been和Did差不多吗?= =
have been 和had been 什么区别完全没懂= =估计问题也题错了还有been和Did差不多吗?= =
have been 是现在完成时
1、have been可以认为是现在完成进行时的标志.结构have been doing.
一般来说现在完成进行时有两种用法.一表示过去的动作延续到现在,并有可能延续下去:
He has been working out all day.他整天在锻炼.(暗示有可能继续锻炼.)
二是现在完成进行时有时富有情感色彩.这是现在完成时所没有的功能:
He has been always talking with his girlfriend. 他总在跟女友唠叨.(有情感色彩)
He has always talked with his girlfriend. 他总跟女友聊天.(没有感情色彩)
2、have been可以认为是现在完成时的主动形式和被动形式,如:
He has gone to work. 他已去上班了.(主动)
He has been arrested.他被逮捕了.(被动)
had been 是过去完成时
即过去完成过什么动作 做过这件事
i had been a good student 我过去曾经是一个好学生
had been也可用在虚拟语气中 表示假设 比如说
if i could go to school, i had been a good student
He has been to Beijing. 他去过北京
He had been to Beijing when he was a child. 他很小的时候就已经去过北京了
即描述的这句话本身所在的时间是现在就用have，如果是在说过去的事情就用had。
have been是现在完成时
had been 是过去完成时
been 是be 的过去分词 用法是系动词
did是 do 的过去式 用法为实义动词或助动词。
have been 是现在完成时 I have seen this film.
（强调对现在的影响，电影的内容已经知道了。）
had been是过去完成时 表示过去某一时刻以前已经完成的动作，常由by， before等。主要是宾语或定语从句中常见。状语从句也会用到
1）by the end of last year, i had worked in this c...
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have been 是现在完成时 I have seen this film.
（强调对现在的影响，电影的内容已经知道了。）
had been是过去完成时 表示过去某一时刻以前已经完成的动作，常由by， before等。主要是宾语或定语从句中常见。状语从句也会用到
1）by the end of last year, i had worked in this college for ten years.去年年底是过去时间，而在大学工作十年是在去年年底之前，故用过去完成)
been是be的过去分词
did是do的过去式
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have been 完成时
had been 过去完成时