总结初二下英语时态

2024-12-01 07:45:15
推荐回答(4个)
回答1:

英语共有16种时态,主要有:完成时态——现在完成时、过去完成时、将来完成时;进行时态——现在进行时、过去进行时、将来进行时、完成进行时;一般时态。

一般现在时
(1)一般现在时表示没有时限的持久存在的动作或状态或现阶段反复发生的动作或状态,常和副词 usually,often,always sometimes, regularly,near,occasionally,every year, every week 等连用。例如:
1)The moon moves round the earth..
2)Mr. Smith travels to work by bus every day.
(2)在由after,until,before,once,when,even if,in case,as long as,as soon as,the moment 以及 if,unless 等引导的时间状语从句或条件状语从句中,通常用一般现在时代替将来时。例如:
1)I will tell him the news as soon as I see him.
2)I will not go to countryside if it rains tomorrow.
3) I will have arrived by the time the meeting begins.
(3)某些表示起始的动词,可用一般现在时表示按规定、计划或安排要发生的动作,这类动词有:be,go,come,start,depart,arrive,begin,leave 等。例如:
1)The plane leaves at three sharp.
2)The new teachers arrive tomorrow.
(4)在由why,what,where,whoever,who,that,as 等引导的从句中,也常用一般现在时代替将来时。例如:
1)Free tickets will be given to whoever comes first.
2)You’ll probably be in the same train as I am tomorrow.
一般过去时
(1)表示过去某一特定时间所发生的、可完成的动作或状态,常与表示确切过去时间的词、短语或从句连用。如 yesterday, last year, in 1949, a minute ago, just now
例如:
We went to the pictures last night and saw a very interesting film.
(2)表示过去习惯性动作。例如:
1)He always went to class last.
2)I used to do my homework in the library.
(注意与be used to doing短语的区别)
3) 在since 引导的状语从句多用一般过去时.主句中一般用完成时
1)He has changed much since I saw him last.
一般将来时
1)表示将来打算进行或期待发生的动作或状态。例如:
I shall graduate next year.
2)几种替代形式:
1)be going to +v在口语中广泛使用,表示准备做或将发生的事情。例如:
I’m going to buy a house when we’ve saved enough money.
2)be to +v表示计划安排要做的事,具有“必要”的强制性意义。例如:
I am to play tennis this afternoon.
3)be about to +v表示即将发生的事情。例如:
He was about to start.
4)be due to +v表示预先确定了的事, 必定发生的事。例如:
The train is due to depart in ten minutes.
5)be on the point/verge of +v – ing 强调即将发生的某种事态。例如:
The baby was on the point of crying when her mother finally came home.
6) 有些动词用现在进行时,表示在最近按计划或安排要进行的动作,多和表示未来时间的状语连用
1) we are leaving on Friday.

现在进行时
(1)表示现在正在进行的动作,常与now,right now,at the moment,for the time being,for the present等连用。例如:
Don’t disturb her. She is reading a newspaper now.
(2)表示现阶段经常发生的动作, 常与always,continually,forever,constantly等连用。例如:
My father is forever criticizing me.
(3)表示根据计划或安排在最近要进行的事情。具有这种语法功能的动词仅限于过渡性动词。即表示从一个状态或位置转移到另一个状态或位置上去的动词。常用的有:go,come,leave,start,arrive,return等。例如:
They are leaving for Hong Kong next month.
(4)有些动词不能用进行时,这是一类表示“感觉,感情,存在,从属”等的动词。如:see,hear,smell,taste,feel,notice,look,appear,(表示感觉的词);hate,love,fear,like,want,wish,prefer,refuse,forgive(表示感情的动词);be,exist,remain,stay,obtain(表示存在状态的动词);have,possess,own,contain,belong,consist of,form(表示占有与从属的动词);understand,know,believe,doubt,forget,remember(表示思考理解的动词)。但是如果它们词义改变,便也可用进行时态。例如:
1)Tom looks pale. What’s wrong with him?
(look 在此为联系动词,意为“显得,看上去”)
2)Tom is looking for his books.
(look 在此为实义动词,意为“寻找”)
过去进行时
过去进行时表示一个过去的动作发生时或发生后,另一个过去的动作正在进行,或表示过去反复的习惯,常与always,continually,constantly等动词连用。例如:
1)We were discussing the matter when the headmaster entered.
2)Whenever I visited him, he was always writing at the desk.
将来进行时
将来进行时主要表示将来某一时刻正在进行的动作,或表示要在将来某一时刻开始,并继续下去的动作。常用来表示礼貌的询问、请求等。例如:
1)This time next day they will be sitting in the cinema.
2)What will you be doing at six tomorrow evening?
完成进行时
(现在、过去、将来)完成进行时是(现在、过去、将来)完成时的强调形式,将放在完成时态部分讲述。

现在完成时
(1)现在完成时用来表示对目前状况仍有影响的,刚刚完成的动作(常与yet,already,just连用),或者过去某一时刻发生的,持续到现在的情况(常与for,since连用)。例如:
1)I have just finished my homework.
2)Mary has been ill for three days.
(2)常与现在完成时连用的时间状语有:since, for, during, over等引导出的短语;副词already, yet, just, ever, now, before, often, lately, recently等;状语词组this week (morning, month, year), so far, up to now, many times, up to the present等。例如:
1)I haven’t been there for five years.
2)So far, she hasn’t enjoyed the summer vacation.
3)There have been a lot of changes since 1978.
(3)完成时态可用在下列结构中:
This (That) is (was) the first (second…) time +定语从句;This (That, It) is (was) the only (last) + n +定语从句;This (That, It) is (was) +形容词最高级+ n +定语从句。如果主句的谓语动词是一般现在时,从句的谓语动词通常用现在完成时;如果主句谓语动词是一般过去时,从句谓语动词通常用过去完成时。例如:
(1)This is one of the rarest questions that have ever been raised at such a meeting.
(2)There was a knock at the door. That was the second time someone had interrupted me that evening.
过去完成时
(1)表示过去某时间前已经发生的动作或情况,这个过去的时间可以用by,before等介词短语或一个时间状语从句来表示;或者表示一个动作在另一个过去动作之前已经完成。例如:
1)We had just had our breakfast when Tom came in.
2)By the end of last year they had turned out 5, 000 bicycles.
(2)动词expect, hope, mean, intend, plan, suppose, wish, want, desire等用过去完成时,表示过去的希望、预期、意图或愿望等没有实现。例如:
I had meant to take a good holiday this year, but I wasn’t able to get away.
另外两种表示“过去想做而未做的事”的表达方式是:
1)was / were + to have done sth, 例如:
We were to have come yesterday, but we couldn’t.
2)intended (expected, hope, meant, planned, supposed, wished, wanted, desired) + to have done sth, 例如:
I meant to have told you about it, but I forgot to do so.
(3)过去完成时常用于以下固定句型:
1)hardly, scarcely, barely + 过去完成时+ when + 过去时。例如:
Hardly had I got on the bus when it started to move.
2)no sooner +过去完成时+ than +过去时。例如:
No sooner had I gone out than he came to see me.
3)by (the end of ) +过去时间,主句中谓语动词用过去完成时。例如:
The experiment had been finished by 4 o’clock yesterday afternoon.
将来完成时
将来完成时表示在将来某一时刻将完成或在另一个未来的动作发生之前已经完成的动作;也可以用来表示一种猜测。常与将来完成时连用的时间状语有:by (the time / the end of ) + 表示将来时间的短语和句子;before (the end of ) + 表示将来时间的词语或句子;when, after等加上表示将来动作的句子等。例如:
1)By this time tomorrow you will have arrived in Shanghai.
2)I shall have finished this composition before 9 o’clock.
3)When we get on the railway station, the train will probably have left.
完成进行时
完成进行时是完成时的强调形式,有现在完成进行时,过去完成进行时,将来完成进行时。
(1)现在完成进行时表示过去某一时刻之前开始的动作或状态一直延续到过去某一时刻。例如:
I have been looking for my lost book for three days, but I still haven’t found it.
有少数动词如work, study, live, teach 等, 用现在完成时和现在完成进行时意思相差无几.
How long have you studied here?
How long have you been studying here?
但就大多数动词而言,在不用表示一段时间地状语的情况下,现在完成时表示动作的完成,而现在完成进行时表示动作的继续.
They have widened the road.
They have been widening the road.
(2)过去完成进行时表示过去某一时刻之前开始的动作或状态一直延续到过去某一时刻。例如:
It had been raining cats and dogs for over a week and the downpour had caused landslides in many places.
(3)将来完成进行时表示在将来某一时刻之前开始的一个动作或状态一直延续到将来某一时刻。例如:
By the time you arrive tonight, she will have been typing for hours.

回答2:

1.关于谈论外星人和UFO
着陆时,人们在干什么(预测未来)
2.提建议(运用情态动词以及Why
don't
...?
的用法)
3.谈论过去发生的事(when

while
引导的时间状语从句)
4.转述某人说的话
5.谈论结果(If
引导的
条件状语从句)
6.谈论某事需要多长时间(现在完成时,一般过去时,现在进行时)

回答3:

为什么不看书本后面的呢?

回答4:

英语的时态(tense)是一种动词形式,不同的时态用以表示不同的时间与方式。

是表示行为、动作和状态在各种时间条件下的动词形式。因此,当我们说时态结构的时候,指的是相应时态下的动词形式。

英语时态分为16种:一般现在、一般过去、一般将来、过去将来时,以及这四者的进行时、完成时和完成进行时

下面就英语中常见的八种基本时态进行阐述,其它的时态都是在这八种时态的基础上结合而成的。

一、 一般现在时:

1.概念:经常、反复发生的动作或行为及现在的某种状况。

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

3.基本结构: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:am/is/are+not;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。

6.例句:. It seldom snows here.

He is always ready to help others.

Action speaks louder than words.

二、 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:be动词;行为动词 的过去式

4.否定形式:was/were+not;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。

6.例句:She often came to help us in those days.

I didn't know you were so busy.

三、 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, these days, etc.

3.基本结构:am/is/are+doing

4.否定形式:am/is/are+not+doing.

5.一般疑问句:把be动词放于句首。

6.例句: How are you feeling today?

He is doing well in his lessons.

四、 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:was/were+doing

4.否定形式:was/were + not + doing.

5.一般疑问句:把was或were放于句首。

6.例句:At that time she was working in a PLA unit.

When he came in, I was reading a newspaper.

五、 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:recently, lately, since…for…,in the past few years, etc.

3.基本结构:have/has + done

4.否定形式:have/has + not +done.

5.一般疑问句:have或has。

6.例句:I've written an article.

The countryside has changed a lot in the past few years.

六、 过去完成时:

1.概念:以过去某个时间为标准,在此以前发生的动作或行为,或在过去某动作之前完成的行为,即“过去的过去”。

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.例句:As soon as we got to the station, the train had left.

By the end of last month. We had reviewed four books

七、 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:am/is/are/going to + do;will/shall + do.

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

5.一般疑问句:be放于句首;will/shall提到句首。

6.例句:They are going to have a competition with us in studies.

It is going to rain.

八、 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:was/were/going to + do;would/should + do.
4.否定形式:was/were/not + going to + do;would/should + not + do.
5.一般疑问句:was或were放于句首;would/should 提到句首。
6.例句:He said he would go to Beijing the next day.
I asked who was going there .

九.将来完成时:
1.概念:在将来某一时刻之前开始的动作或状态
2.时间状语:by the time of;by the end of+时间短语(将来);by the time+从句(将来)
3.基本结构:be going to/will/shall + have done

十.现在完成进行时:
1.概念:在过去某一时刻之前开始的动作或状态一直持续到说话为止
2.基本结构:have/has +been+doing
几种常见时态的相互转换

英语中的几种时态在一定情况下可以互相转换,以下是几种常见的转换形式:

十一、 一般过去时与现在完成时的转换

在现在完成时中,延续性动词能与表示一段时间的状语连用,瞬间动词却不能。但是,可用别的表达方式:①瞬间动词用于“一段时间 + ago”的一般过去时的句型中;②瞬间动词可改成与之相对应的延续性动词及短语,与一段时间连用;③瞬间动词用于“It is + 一段时间 + since + 一般过去时”的句型中,表示“自从……以来有……时间”的意思,主句一般用it is来代替It has been;④瞬间动词用于“Some time has passed since + 一般过去时”的句型中。请看:

A. He joined the League two years ago.

B. He has been in the League for two years.

C. It is two years since he joined the League.

D. Two years has passed since he joined the League.

十二、 一般现在时与现在进行时的转换

在一般现在时中,at加上名词表示“处于某种状态”,如at work(在工作), at school(上学、上课)等。此短语可与进行时态转换。请看:

Peter is at work, but Mike is at play.

Peter is working, but Mike is playing.

十三、 现在进行时与一般将来时的转换

在现在进行时态中go, come, leave, start, arrive等动词常与表示将来的时间状语连用表示将要发生的动作。如:I am coming, Mum! 意为“我就来,妈妈!”请看:

The train is leaving soon.

The train will leave soon.

十六种时态
一般现在时,一般过去时,一般将来时,一般过去将来时;
现在进行时,过去进行时,将来进行时,过去将来进行时;
现在完成时,过去完成时,将来完成时,过去将来完成时;
现在完成进行时,过去完成进行时,将来完成进行时,过去将来完成进行时.