专升本英语8大时态结构汇总(下)

2024-06-05 10:48:08
747
来源:库课网校

  现在进行时

  1. 概念:表示现阶段或说话时正在进行的动作及行为;

  2. 时间状语:Now, at this time, days, look, listen, etc;

  3. 基本结构:主语+be +doing+其它;

  4.否定形式:主语+be +not+ doing+其它;

  5.—般疑问句:把be动词放于句首。

  eg: ①Are you feeling good today?你今天感觉如何?②He is doing well in his lessons.在课上他表现得很好。

  过去进行时

  1.概念:表示过去某段时间或某一时刻正在发生或进行的行为或动作;

  2.时间状语: at this time yesterday, at that time或以when引导的谓语动词是一般过去时的时间状语等;

  3.基本结构:主语+was / were+ doing+其它;

  4.否定形式:主语+was/were+ not+ doing+其它;

  5.—般疑问句:把 was 或 were 放于句首。(第一个字母大写)

  eg: @At that time she was working in a company.那段时间她在一家公司工作。②When he came in, I was reading a newspaper.他进来时,我正在读报纸。

  现在完成时

  1.概念:过去发生或已经完成的动作对现在造成的影响或结果,或从过去已经开始,持续到现在的动作或状态;

  2时间状语: yet, already, just, never, ever ,so far, by now, since+时间点,for+时间段,recently, lately, in the past few years, etc;

  3.基本结构:主语+have / has+过去分词+其它;

  4.否定形式:主语+have / has+ not+过去分词+其它;

  5.—般疑问句: have或 has放句首。

  eg: I've written an article.我已经写了一篇论文。@The countryside has changed a lot in the past few years.在过去的几年,农村发生了巨大的变化。

  过去完成时

  1.概念:过去发生或者已经完成的动作对现在造成的影响或结果,或从过去已经开始,持续到现在的动作或状态;

  2.时间状语: before, by the end of last year (term, month), etc;

  3.基本结构: had+ done;

  4.否定形式: had+ not+ done;

  5.-般疑问句: had 放于句首。

  6.用法:

  (1)在told, said, knew, heard, thought等动词后的宾语从句中。

  eg: She said (that) she had never been to Paris.她告诉我她从来没有过巴黎。

  (2)在过不同时间发生的两个动作中,发生在先,过完成时;发生在后,用一般过去时。

  eg: When the police arrived, the thieves had run away.警察到达时,小偷们早就跑了。

  (3)示意向的动词,如hope, wish, expect, think, intend, mean, suppose等,过完成时表示 原本....未能..

  eg:①We had hoped that you would come, but you didn't.那时我们希望你能来,但是你没有来。

  ②I had hardly opened the door when he hit me.我刚打开门,他就打了我。(注意: had hardly... when..刚....就....)

  ③He had no sooner bought the car than he sold it.他刚买了这辆车,转眼又卖了。(注意: had no sooner....than刚....就......)