【一般过去时的构成】一般过去时的概念和构成

发布时间:2021-04-01 04:35:45

一般过去时的概念和构成 英语

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【答案】 一般过去时:
  定义:
  1.表示过去某个时间发生的动作或存在的状态.
  ---She ate three apples yesterday.
  ---昨天她吃了三个苹果.
  2.表示过去经常或过去反复发生的动作
  --(也可与often,always等频度的时间状语连用)
  ---He always got up very early when he was young.
  ---年轻的时候他每天总是起得很早.
  谓语形式:
  (1)did(动词的过去式)
  ---She was a student two years ago.
  ---两年前她是一个学生.
  (这件事情已经过去了,所以be动词is要用 过去式:was)
  ---They were students two years ago.
  ---两年前他们是学生.
  (这件事情已经过去了,所以be动词are要用 过去式:were)
  ---She ate three apples yesterday.
  ---昨天她吃了三个苹果.
  (这件事情已经过去了,所以动词eat要用 过去式:ate)
  ---I did my homework promptly.
  ---我及时的完成了作业.
  (这件事情已经过去了,所以动词do要用 过去式:did)
  (do homework 做作业)
  (2)was(were)+done(过去时的被动语态)
  ---The picture was painted two years ago.
  ---这幅图在两年前画的.
  (这件事情已经过去了,图是被绘画的,所以用过去时的被动态.)
  句子结构:
  (1)
  肯定句:主语+be动词(was,were)+其他
  ---She was a student two years ago.
  ---两年前她是一个学生.
  否定句:主语+be not(was not,were not)+其他
  ---She was not a student two years ago.
  ---两年前她不是一个学生.
  疑问句:Be动词(Was/Were)+主语+其他
  ---Was she a student two years ago?
  ---两年前她是一个学生吗?
  (2)
  肯定句:主语+动词的过去式+其他
  ---She ate three apples yesterday.
  ---昨天她吃了三个苹果.
  否定句:主语+did not+动词原型+其他
  ---She did not eat three apples yesterday.
  ---昨天她没吃三个苹果.
  疑问句:Did+主语+动词原型+其他
  ---Did she eat three apples yesterday?
  ---昨天她吃了三个苹果吗?
  注意:
  wasn't 是 was not 的缩写.
  weren't 是 were not 的缩写.
  didn't 是did not 的缩写.
  常用的时间状语:
  yesterday昨天,two days ago,three days ago(两年前,三年前)等等.
  long ago很久以前
  last + week(year,night,month…)上一周,去年,昨晚,上个月等等.
  in 1989,in 2008等等.
  a moment ago 刚才,just now 刚才.
  when he was young 当他年轻的时候.
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