How long have you lived here?中的How long后面为什么要加have我听不懂，have是完成时的意思？ 什么是现在完成时 ，已经教完了，我以前没听，现在复习。

来源：学生作业学帮网 编辑：学帮网 时间：2024/06/01 06:12:44

How long have you lived here?中的How long后面为什么要加have
我听不懂，have是完成时的意思？ 什么是现在完成时 ，已经教完了，我以前没听，现在复习。

翻译为 你已经住在这儿多长时间了
现在完成时的结构是：have/has+过去分词 它有两种用法：‘已完成’和‘未完成’.
1、‘已完成’用法是动作或过程发生在说话之前某个没有明确说出的过去时间现在已完成,并有现在的情况有联系.如：
I have just received a lettle.我刚刚收到弟弟的来信
做这种用法时,句中常含有标志性副词,如：already,yet,just,as,ever,never,lately,so,far等.
2、‘未完成’用法是指动作或状态从过去某时开始,继续到现在,可能继续下去,可能继续下去,也可能刚刚结束,这种用法通常都要与表示一段时间的状语连用.如：
He haslived in Shanghai for three years.他已经在上海住三年了.

How long后面跟一个时间段，要用完成时表示持续的动作。

这是一个现在完成时态的体现，“已经在这住了多长时间”。

这是一段时间，表示状态，要用完成时。
楼主还没学现在完成时？那就算了吧，以后会学到的，表示状态。
主要掌握现在完成时和一般过去时的区别，现在完成时强调完成的状态，一般过去时强调过去做的动作，侧重点不同。

改错题：Li Hong,how long have you become a babysitter?英语大神进 要速度 How long have you been how long have you been learning english? How long have you been studying? How long have you been in China? how long have you been dancing today? how long have you studied in this How long have you been there? How long have you live in China How long have you ----(live)here? “How long have you been watching how long have you done与how long have you been的区别 How long have you been skating?与How long did you skate?的区别 How Long have you felt thisHow Long have you felt this way?翻译成汉语 How long have you been here?为什么是How long have you been here,不是How long have you been standing here? Are you Li Long 哪错? Are you Li Long哪错 How long have you been collecting shells?翻译