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专升本英语必须要掌握的十大时态结构!

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1、一般现在时

(1)概念:表示经常发生的情况;有规律出现的情况;总是发生的;事实真理。

(2)时间状语:always, usually, often, sometimes, every week/day/year/month…, once a week/day/year/month…, on Sundays/Mondays…, etc.

(3)基本结构:主语+动词原形(如主语为第三人称单数,动词上要改为第三人称单数形式)

(4)否定形式:主语+am/is/are+not+其他;此时态的谓语动词若为行为动词,则在其前加don't,如主语为第三人称单数,则用doesn't,同时还原行为动词。

(5)一般疑问句:把be动词放于句首;用助动词do提问,如主语为第三人称单数,则用 does,同时,还原行为动词。eg:①It seldom snows here.这里很少下雪。②He is always ready to help others. 他总是乐于帮助别人。③Action speaks louder than words. 事实胜雄辩。

2、一般过去时

(1)概念:过去某个时间里发生的动作或状态;过去习惯性、经常性的动作、行为。

(2)时间状语:ago, yesterday, the day before yesterday, last week, last year/night/month…, in 1989, just now, at the age of 5, one day, long long ago, once upon a time,etc.

(3)基本结构:主语+动词的过去式或be的过去式+名词

(4)否定形式:主语+was/were+not+其他;在行为动词前加didn't,同时还原行为动词。

(5)一般疑问句:was或were放于句首;用助动词do的过去式did提问,同时还原行为动词。eg:①She often came to help us in those days.那些天她经常来帮助我们。②I didn't know you were so busy.我不知道你这么忙。

3、一般将来时

(1)概念:表示将要发生的动作或存在的状态及打算、计划或准备做某事。

(2)时间状语:tomorrow, next day/week/month/year…, soon, in a few minutes, by…, the day after tomorrow, etc.

(3)基本结构:主语+am/is/are+going to+do+其它;主语+will/shall+do+其它

(4)否定形式:主语+am /is/are not going to+do;主语+will/shall not do+其它5.一般疑问句:be放于句首;will/shall提到句首。(首字母大写)eg:①They are going to have a competition with us in studies.他们将在学习中与我们竞争。②It is going to rain.天要下雨了。

4、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)一般疑问句:have或has放句首。eg:①I've written an article. 我已经写了一篇论文。②The 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。

5、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)一般疑问句: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去过巴黎。

2)在过去不同时间发生的两个动作中,发生在先,用过去完成时;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)表示意向的动词,如hope, wish, expect, think, intend, mean,suppose等,用过去完成时表示"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……)

6、将来完成时

(1)概念:状态完成:表示某事继续到将来某一时为止一直有的状态;动作完成:表示将来某一时或另一个将来的动作之前,已经完成的动作或获得的经验。

(2)时间状语:by then, by this time tomorrow, etc.

(3)基本结构:主语+will+have done+其它。

(4)否定形式:主语+will+not+have done+其它。

(5)一般疑问句:will放于句首eg:①They will have been married for 20 years by then. 到那时他们就结婚将有20年了。②You will have reached Shanghai by this time tomorrow. 明天此时,你已经到达上海了。

7、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)一般疑问句: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。

8、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)一般疑问句:把was或were放于句首。(第一个字母大写)eg:①At 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。

9、将来进行时

(1)概念:表示将来某一时间正在进行的动作,或者按计划将要发生的事情。

(2)时间状语:soon,tomorrow, this evening, on Sunday, by this time, tomorrow, in two days, tomorrow evening, etc.

(3)基本结构:主语+will+be+going to+do+其它。

(4)否定形式:主语+will+not+be going to+do+其它;主语+would/should+not+do.

(5)一般疑问句:will放于句首。eg:①She'll be coming soon. 她会很快来的。②By this time tomorrow, I'll be lying on the beach. 明天此时,我正躺在海滩上。

10、过去将来时

(1)概念:立足于过去某一时刻,从过去看将来,常用于宾语从句中。

(2)时间状语:The next day/morning/year…, the following month/week…, etc.

(3)基本结构:主语+was/were+going to+do+其它;主语+would/should+do+其它

(4)否定形式:主语+was/were+not+going to+do+其它;主语+would/should+not+do.

(5)一般疑问句:was或were放于句首;would/should提到句首eg:①He said he would go to Beijing the next day. 他说他第二天要去北京。②I asked who was going there. 我问,谁要去那里。

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