一般现在时被动语态含义
我以前在网站上找到的,看了,蛮有用的~~不过你要耐心看完,好好思考一下。1 被动语态的构成
被动语态的基本结构是“助动词be +过去分词”。被动语态的谓语动词有各种时态变化,以动词take为例,将被动语态常见时态的动词形式列表如下:
一般现在时
现在进行时
现在完成时
一般将来时
am/is/are
taken
am/is/are
being taken
have/has been
taken
will/shall be
taken
一般过去时
过去进行时
过去完成时
过去将来时
was /were
taken
was/were
being taken
had been
taken
would/should
be taken
从上表中可以看出,被动语态的各种时态变化都是通过助动词“be”的各种时态来表示的,因此只要知道“be”的时态形式,也就掌握了被动语态构成
2 被动语态的基本时态变化
被动语态通常为十种时态的被动形式, 被动语态由be+过去分词构成,be随时态的变化而变 化。以do为例,各种时态的被动语态形式为:
1) am/is/are +done (过去分词) 一般现在时
例Visitors are requested not to touch the exhibits.
2) has /have been done 现在完成时
例All the preparations for the task have been completed, and we're ready to start.
3) am/is /are being done 现在进行时
例A new cinema is being built here.
4) was/were done 一般过去时
例I was given ten minutes to decide whether I should reject the offer.
5) had been done 过去完成时
例 By the end of last year, another new gymnasium had been completed in Beijing.
6) was/were being done 过去进行时
例A meeting was being held when I was there.
7) shall/will be done/ be going to be done/ be about to be done/ be to be to done一般将来时
例Hundreds of jobs will be lost if the factory closes.
8) should/would be done/ was\were going to be done/ was\were about to be done/was\were to be to done一般将来时
例The news would be sent to the soldier's mother as soon as it arrived.
9) shall/will have been done 将来完成时(少用)
例The project will have been completed before July.
10) should/would have been done 过去将来完成时(少用)
例He told me that his new clothes would have been made very soon.
一般现在时,一般过去时和现在完成时的区别
其实这三个时态很简单的。来看一般现在时的用法 :
1) 经常性或习惯性的动作,常与表示频腮度的时间状语连用。
时间状语: every…, sometimes, at…, on Sunday
I leave home for school at 7 every morning.
2) 客观真理,客观存在,科学事实。
The earth moves around the sun.
Shanghai lies in the east of China.
3) 表示格言或警句中。
Pride goes before a fall. 骄者必败。
注意:此用法如果出现在宾语从句中,即使主句是过去时,从句谓语也要用一般现在时。
例:Columbus proved that the earth is round..
4) 现在时刻的状态、能力、性格、个性。
I don't want so much.
Ann Wang writes good English but does not speak well.
比较:Now I put the sugar in the cup.
I am doing my homework now.
第一句用一般现在时,用于操作演示或指导说明的示范性动作,表示言行的瞬间动作。再如:Now watch me, I switch on the current and stand back. 第二句中的now是进行时的标志,表示正在进行的动作的客观状况,所以后句用一般现在时。
一般过去时的用法:
1)在确定的过去时间里所发生的动作或存在的状态。
时间状语有:yesterday, last week, an hour ago, the other day, in 1982等。
Where did you go just now?
2)表示在过去一段时间内,经常性或习惯性的动作。
When I was a child, I often played football in the street.
Whenever the Browns went during their visit, they were given a warm welcome.
3)句型:
It is time for sb. to do sth "到……时间了" "该……了"
It is time sb. did sth. "时间已迟了" "早该……了"
It is time for you to go to bed. 你该睡觉了。
It is time you went to bed. 你早该睡觉了。
would (had) rather sb. did sth. 表示'宁愿某人做某事'
I'd rather you came tomorrow.
4) wish, wonder, think, hope 等用过去时,作试探性的询问、请求、建议等。
I thought you might have some. 我以为你想要一些。
比较:
一般过去时表示的动作或状态都已成为过去,现已不复存在。
Christine was an invalid all her life.
(含义:她已不在人间。)
Christine has been an invalid all her life.
(含义:她现在还活着)
Mrs. Darby lived in Kentucky for seven years.
(含义:达比太太已不再住在肯塔基州。)
Mrs. Darby has lived in Kentucky for seven years.
( 含义:现在还住在肯塔基州,有可能指刚离去)
注意: 用过去时表示现在,表示委婉语气。
1)动词want, hope, wonder, think, intend 等。
Did you want anything else?
I wondered if you could help me.
2)情态动词 could, would.
Could you lend me your bike?
比较过去时与现在完成时 :
1)过去时表示过去某时发生的动作或单纯叙述过去的事情,强调动作;现在完成时为过去发生的,强调过去的事情对现在的影响,强调的是影响。
2)过去时常与具体的时间状语连用,而现在完成时通常与模糊的时间状语连用,或无时间状语。
一般过去时的时间状语:
yesterday, last week,…ago, in1980, in October, just now, 具体的时间状语
共同的时间状语:
this morning, tonight,this April, now, once,before, already, recently,lately
现在完成时的时间状语
for, since, so far, ever, never, just, yet, till/until, up to now, in past years, always,
不确定的时间状语
3)现在完成时可表示持续到现在的动作或状态,动词一般是延续性的,如live, teach, learn, work, study, know.
过去时常用的非持续性动词有come, go, leave, start, die, finish, become, get married等。
举例:
I saw this film yesterday.
(强调看的动作发生过了。)
I have seen this film.
(强调对现在的影响,电影的内容已经知道了。)
Why did you get up so early?
(强调起床的动作已发生过了。)
Who hasn't handed in his paper?
(强调有卷子,可能为不公平竞争。)
She has returned from Paris.
她已从巴黎回来了。
She returned yesterday.
她是昨天回来了。
He has been in the League for three years.
(在团内的状态可延续)
He has been a League member for three years.
(是团员的状态可持续)
He joined the League three years ago.
( 三年前入团,joined为短暂行为。)
I have finished my homework now.
---Will somebody go and get Dr. White?
---He's already been sent for.
句子中如有过去时的时间副词(如 yesterday, last, week, in 1960)时,不能使用现在完成时,要用过去时。
(错)Tom has written a letter to his parents last night.
(对)Tom wrote a letter to his parents last night.
现在完成时表示“某人过去曾经做过某事”或者“某人做某事多久”;常与时间副词already(已经),yet(还、已经) ,just(刚刚、仅仅) ,ever(曾经),never(从不),before(以前)等连用。这几个副词的用法如下:
1.already意为“已经”,通常用于肯定句中,可放在助动词之后,过去分词之前,也可以放在句末。实例:
1)I've already read this book. 我已经读过这本书了。
(“读”这一动作发生在过去,对现在造成的影响是“知道书中的内容”。)
2)I've washed my clothes already.我已经洗了衣服。
(洗衣服的动作已完成,其结果是“衣服冼干净了”。)
注意:在表示吃惊或明知故问等感情色彩时,already也可用于(口语)疑问句中。实例:
3)Have you met him already ?你(真的)已经见过他了?
2.yet用在疑问句中意为“已经”,用在否定句中意为“还”,常放在句末。实例:
1)—Has he found his watch yet ?他已经找到他的手表了吗?
—No,not yet.不,还没有。
2)The woman hasn't found her dog yet .
那位妇女还没有找到她的狗。(没找到狗,心里着急,这就是对现在的影响)
3.just意为“刚刚”,表示行为刚刚过去,常放在助动词与过去分词之间。实例:
He has just come back fromschool .他刚从学校回来。
4.ever意为“曾经”,用于疑问句或否定句中,放在助动词与过去分词之间。实例:
1)Have you ever been to Hong Kong ?你曾去过香港吗?
2)I haven't ever spoken to her.我未曾和她说过话。
5.never意为“从来没有”常与before连用(before要放在句尾,而never多放在助动词与过去分词之间。实例:
I have never travelled byplane before.我以前从来没有乘飞机旅行过。
6.before意为“以前”,指过去不确定的某个时间,总是放在句末,不受句型的限制。实例:
1)Have you been to Hainan before ?你以前去过海南吗?
2)I haven't eaten Guangdong food before.我以前没吃过广东菜。
分享相关内容的知识扩展阅读:
一般现在时第三人称单数变化规则是什么?
一般现在时第三人称单数有五种变化规则。动词变相应的第三人称单数形式:
1、肯定句:主语+动词第三人称单数形式+其御蔽它。
2、否定句:主语+doesn't+动词原形+其它。3、一般疑问句:Does+主语+动词原形+其它。
4、肯定回答 :Yes,主语+does 否定回答: No,主语+doesn't。5、特弯乱殊疑问句:特殊疑问词+一般疑问句。特殊疑问句:特殊疑问词+一般疑问句。注意:句式结构错则全句都错。
谓语动词的形式:do/does。助动词的形式:don't(do not)/doesn't(does not)。三种情况,主句将来时,从句一般现在时
主将从现是指在时间状语从句、条件状语从句和让步状语从句中,如果主句是一般将来时,从句用一般现在时替代一般将来时。常见的有以下六种情况:
一、如果主句是将来时或表示将来含义时,那么条件和时间状语从句多用一般现在时
如: When I grow up, I will be a nurse and look after patients/ I want to be a nurse and look after patients.
我长大后要当一名护士,照顾病人。
二、如果主句是祈使句,那么从句通常要用一般现在时
如:Don’t laugh at me when I make a mistake.
我犯错误的时候不要笑话我。
三、如果主句是含有情态动词的一般现在时,根据需要从句多用一般现在时
如:You should be quiet when you are in the reading room
在阅览室时应保持安静。
四、 如果if的条件状语从句遇到变换间接和直接时 , 祈使句应用not to....
如; She said not to close the window
常见的时间状语从句的连词有:as soon as,when,while ,as,until等
五、主将从现说的是在含有时间状语从句和条件状语从句的主从复合句中,如果主句的时态是一般将来时,那么从句要用一般现在时。
例如:I will tell him about it when he comes.
If it is fine tomorrow, we will go outing.
六、如果主句的时态是过去将来时,那么从句要用一般过去时 。例如:
He said that he would have another try if he had the chance.
I knew he could help me if he was free the next day.
主要标志有:if 、unless 、until、 when 、as soon as等
We often go to the party.是属于一般现在时,还是现在进行时?
本句属于一般现在时。一般现在时:
1. 表示习惯性的动作;讲话时,人或事物的特性或状态;以及客观真理等
谓语动词:除第三人称单数需要在动词后加-s外,其余人称均用原 形动词(be和have动词随着人称的不同有特殊形式)。该时态常跟有一个含有频度或现在概念的状语,如:always,never,every day等。例如:
We get up at six every morning. (习惯性动作)我们每天早上六点钟起床。
Everyone is in high spirits. (现在所处状态)大家都情绪高涨
Light travels more quickly than sound. (客观事实)光比声运行得更快。
2. 用于时间和条件状语从句中,代替一般将来时
例如:
If it is fine tomorrow, we will go on a picnic. 如果明天是晴天,我们将去野餐。
When you come next time, bring me some magazines. 你下次来时,给我带几本杂志来。
3. 与某些具有“出发,到达”等含义的动词连用,表示按计划将要发生的动作
常用的这部分词包括:arrive,be,begin,go,leave,start,stay等。例如:
The delegation arrives in Beijing this afternoon.代表团将于今天下午到达。
There is a new film tonight.今天晚上有一个新电影。
4. 用于报刊的新闻标题中
例如:
Algerian Troops Fire on Anti-government Rioters 阿尔及利亚部队向反政府暴乱者开火
Wildlife Flourishes in Jilin Reserves 吉林保护区野生动物兴旺