谁呢有完整的初中三年的英语时态?

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/05 18:27:37
谁呢有完整的初中三年的英语时态?

谁呢有完整的初中三年的英语时态?
谁呢有完整的初中三年的英语时态?

谁呢有完整的初中三年的英语时态?
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.
一、动词时态
英语的动词在表示不同时间里发生的行为或存在的状态时,要用不同的形式来表示.英语的时态从时间上来看,可分为“现在”,“过去”,“将来“和”过去将来“四大类.动词共有十六种不同时态,但常用的时态有八种.
(一) 一般现在时
一般现在时表示经常发生的动作(习惯性的动作)或存在的状态,句中常用always, usually, often, sometimes, seldom, never, every day等时间状语.
例如:
1) He goes to school at seven o’clock every day.
2) The sun rises in the east.
(二) 一般过去时
一般过去时主要用于表示过去的动作、行为或状态,句中常有yesterday, ago, in 1989, once, last week (month, year), at that time, just now 等时间状语.
例如:
1) He was born in 1989.
2) I used to play football when I was young.
(三)一般将来时
英语动词表示将来时间有多种形式,其共同特点是句中常有表示将来时间的状语,如:tomorrow, next week, in a week等
例如:
1) We will visit the science museum next week.
2) We are going to discuss the problem tomorrow.
(四)现在进行时
现在进行时表示现在时刻正在进行的动作或表示现阶段正在做的事情,句中常与now, at this moment等时间状语连用.
例如:
1) The boy is playing video games.
2) His father is writing a novel these days.
(五)现在完成时
现在完成时表示从过去某一时刻开始一直延续到现在的动作或状态,或还要延续下去,句中常用since, for, yet, already等表示一段时间的状语.
例如:
1) Great changes have taken place in China since 1980.
2) He has been in this factory for five years.
(六)过去进行时
过去进行时表示在过去某个时候正在进行的动作或过去某个阶段正在做的事情.
例如:
1) He was reading an interesting book this time yesterday.
2) When I came in, they were having supper.
(七)过去完成时
表示在过去某个时刻前已经发生的动作或状态,或者从过去某个时刻开始一直延续到过去另一时刻的动作或状态.
例如:
1) By the end of last year, we had learned more than 2,000 English words.
2) My teacher had taught in that school for ten years before she came here.
(八)过去将来时
过去将来时表示从过去的观点来预计以后要发生的动作或存在的状态,这种时态常用于宾语从句当中,主句中的谓语动词一般是过去时.
例如:
1) He said that he would study harder than before.
2) He didn’t tell me when he would go.
二、被动语态
(一)被动语态的构成
英语动词的被动语态由助动词be+及物动词的过去分词构成.助动词be必须与主语的人称和数保持一致,并有时态的变化.例如:
The man was fooled by the two boys.
The book has been translated into several languages.
(二)被动语态的用法
(1)动作的执行者不知道是谁或难以说明时常用被动语态.例如:
Street lights are often turned on at six in winter.
The new test book will be used next term.
(2)当动作的承受者比起动作的执行者来说更能引起人们的关心而需要加以强调时,要用被动语态.例如:
This kind of bicycle is not sold in our shop.
The thief was caught by a policeman yesterday.
(3)含有双宾语的句子,主动句中的间接宾语或者直接宾语都可变为被动语态中的主语,另一个保留不变.变为主语的若是主动句中的直接宾语,间接宾语前则需加介词to 或for.
例如:The pianist gave the pupils some advice.
间接宾语 直接宾语
→The pupils were given some advice by the pianist.
→Some advice was given to the pupils by the pianist.
(4)在主动语态句中动词make、have、let、see、watch、hear、feel等后接动词不定式作宾语补足语,动词不定式不加to.但变成被动语态时后面的不定式都须加上to.
例如:The boss made them work ten hours a day.
→They were made to work ten hours a day by the boss.
A boy saw him enter the house.
→He was seen to enter the house.
(三)被动语态的时态
(1) 一般现在时
构成:助动词am/ is/are + 动词的过去分词
例如:This kind of car is made in Shanghai.
English is spoken in many countries.
(2) 一般过去时
构成:助动词was/were + 动词的过去分词
例如:The bridge was built in 1992.
Was this novel written by his father?
(3) 一般将来时
构成:will be 或be going to + be + 动词的过去分词
例如:These books are going to be posted tomorrow.
The baby will be taken good care of in the hospital.
(4) 现在完成时
构成:助动词have/has + been + 动词的过去分词
例如:Has his work been finished?
We haven’t been invited to the party.
(5) 现在进行时
构成:be + being + 动词的过去分词
例如:A new bridge is being built in my hometown.
The problem is being discussed by the students.
补充说明:带有情态动词的被动语态
构成:情态动词 + be + 动词的过去分词
例如:Can this walkman be repaired here?
Your composition must be handed in tomorrow.