本文收集整理关于什么时候用完成时的相关议题,使用内容导航快速到达。
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Q1:as soon as 的用法:什么时候用完成时,什么时候用一般时,求例句
as soon as 的用法一般是两种情况:
1、指未发生的动作,规律是:主句一般将来时,从句用一般现在时代替一般将来时
如:I will tell him the news as soon as he comes back。
注:有时,为了特意表达刚刚完成某事就如何如何,需要用现在完成时。
如:I will go with you as soon as I have washed my face.
2、指紧接着发生的两个短动作,主从句都用一般过去时
如 He took out his English books as soon as he sat down
不过,我也见过从句和主句都用一般现在时的情况。
如:As soon as he finishes his classwork, he runs out of the class. 他一做完课堂作业,就跑出了教室。
总之,记住那两种基本的情况,不把时态用得太混乱了就行了(比如后面从句里用了将来时,就绝对允许了)。
感谢你向我们团队求助,,,谢谢!
Q2:什么时候该用现在完成时,又什么时候该用过去式?急呀!
1。现在完成时用来表示之前已发生或完成的动作或状 态,其结果的确和现在有联系。动作或状态发生在过去 但它的影响现在还存在;也可表示持续到现在的动作或 状态。其构成: have (has) +过去分词。2过去进行时的基本用法a.过去进行时表示过去某一时间正在进行的动作,常和表过去的时间状语连用,如:I was doing my homework at this time yesterday.昨天的这个时候我正在做作业。They were expecting you yesterday.他们昨天一直在等待。b.过去进行时可与soon, the next moment, in minutes, minutes later等时间状语连用,表示一个新的动作刚刚开始。如:Soon the whole town was talking about it.不久镇上的人就都谈论起这种事了。c.过去进行时可用来申述原因或用作借口,这种用法常用在口语中。如:-- Have you finished your homework, Mary?玛丽,你作业做完了吗?-- No, I was helping my mother is the kitchen all day yesterday.还没呢,我昨天一天都帮妈妈在厨房干活。d.过去进行时可用来为一个后一系列动作的发生提供背景。如:I hurt my leg when I was riding a bike.我在骑车时把腿摔坏了。e.过去进行时可表示过去未曾实现的愿望或打算,这时be动词was/were要重读。如:I was writing him a letter this morning and forgot all about it .我本该今天早上给他写信的,后来全给忘了。I was seeing her tomorrow. 我本来打算明天会见她。He was watching the play yesterday, but he was too busy. 他昨天本来要看那场戏的,可是太忙了。过去进行时表示过去某一段时间或某一时刻正在进行的动作。常与之连用的时间状语有,at thattime/moment, (at) this time yesterday (last night/Sunday/week…), at+点钟+yesterday (lastnight / Sunday…),when sb. did sth等时间状语从句。What were you doing at seven p.m. yesterday?昨天晚上七点你在干什么?I first met Mary three years ago. She was working at a radio shop at the time.我第一次遇到玛丽是在三年前,当时她在一家无线电商店工作。I was cooking when she knocked at the door.她敲门时我正在做饭。(3)一般过去时往往表示某一动作已经完成,而过去进行时却表示动作在持续或未完成。如:I saw you while you were speaking to the teacher.你在和老师谈话时我看见了你。注意:有的过去时间状语既可用于一般过去时,也可用于过去进行时,但含义不同。如:She wrote a letter to her friend last night.她昨晚给她的朋友写了封信。(信写完了)She was writing a letter to her friend last night.她昨晚一直在给她的朋友写信。(信不一定写完)
一、过去进行时的时间状语1.when 和while引导的状语从句中,强调某个动作正在进行的过程中时要用进行时态,while表示一段时
间,因此它所引导的状语从句中,谓语动词常用进行时态,如:When/While we were having supper, the light went out.我们正在吃饭时灯熄灭了。2.when用作并列连词时,主句常用进行时态,从句则用一般过去时,表示主句动作发生的过程中,另一个意
想不到的动作发生了。如:I was walking in the street when someone called me.我正在街上走时突然有人喊我。二、下面几种情况不用一般过去时而要用过去进行时:1. 表示过去某一阶段暂时性的习惯动作时。如:Tom was getting up at six o’clock every day that week.汤姆那一周里每天都是六点钟起床。2. 与always连用表示赞美,厌烦等感情色彩时。如:John was always coming to school late.约翰上学总是迟到。Lei Feng was always doing good deeds for the people.雷锋总是为人民做好事。3. 用来描写故事发生的情景时。如:It was a dark night. The wind was blowing hard and the rain was falling heavily. A PLA mansuddenly appeared on the river bank. He wanted to cross the river.那是一个漆黑的夜晚,风刮得很厉害,雨下得很大,一个解放军战士突然出现在河岸上,他想过河去。4. when作并列连词,表示“(这时)突然”之意时,第一个并列分句用过去进行时,when引导的并列分句用一般过去时。如:I was taking a walk when I met him.我正在散步,突然遇见了他。We were playing outside when it began to rain.我们正在外边玩,这时下起雨来了。5go, come, leave, start, arrive等动词可用过去进行时表示过去将来的含义。如:I was leaving for Wuhan that day.那天我正要去武汉。She was coming later.她随后就来。三、过去进行时表示婉转语气(只限于want, hope, wonder 等动词),用以提出请求。如:I was wondering if you could help me.I was hoping you could send me home.www.yIJITAO.‖coM
Q3:什么时候使用一般过去时什么时候用现在完成时
1、一般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、一般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.
一般过去时常用的非持续性动词有come, go, leave, start, die, finish, become, get married等。 呵呵,你问的也比较笼统,我就给你全面的回答了一遍。你可以问的细一点,我可以给你具体的分析下,哈哈
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Q4:什么时候用过去式什么时候用现在完成时?
现在完成时是过去发生的到现在已经结束并对现在有影响的事情,have+done(动词完成态)
过去完成时是发生在过去并且在过去已经完成的事情,用had+done
一般过去时是发生在过去对现在没有造成影响的事情,直接用动词过去式did1。现在完成时用来表示之前已发生或完成的动作或状 态,其结果的确和现在有联系。动作或状态发生在过去 但它的影响现在还存在;也可表示持续到现在的动作或 状态。其构成: have (has) +过去分词。
2过去进行时的基本用法
a.过去进行时表示过去某一时间正在进行的动作,常和表过去的时间状语连用,如:
I was doing my homework at this time yesterday.昨天的这个时候我正在做作业。
They were expecting you yesterday.他们昨天一直在等待。
b.过去进行时可与soon, the next moment, in minutes, minutes later等时间状语连用,表示一个新的
动作刚刚开始。如:
Soon the whole town was talking about it.不久镇上的人就都谈论起这种事了。
c.过去进行时可用来申述原因或用作借口,这种用法常用在口语中。如:
-- Have you finished your homework, Mary?玛丽,你作业做完了吗?
-- No, I was helping my mother is the kitchen all day yesterday.还没呢,我昨天一天都帮妈妈在厨
房干活。
d.过去进行时可用来为一个后一系列动作的发生提供背景。如:
I hurt my leg when I was riding a bike.我在骑车时把腿摔坏了。
e.过去进行时可表示过去未曾实现的愿望或打算,这时be动词was/were要重读。如:
I was writing him a letter this morning and forgot all about it .我本该今天早上给他写信的
,后来全给忘了。
I was seeing her tomorrow. 我本来打算明天会见她。
He was watching the play yesterday, but he was too busy. 他昨天本来要看那场戏的,可是太忙
了。
过去进行时表示过去某一段时间或某一时刻正在进行的动作。常与之连用的时间状语有,at that
time/moment, (at) this time yesterday (last night/Sunday/week…), at+点钟+yesterday (last
night / Sunday…),when sb. did sth等时间状语从句。
What were you doing at seven p.m. yesterday?昨天晚上七点你在干什么?
I first met Mary three years ago. She was working at a radio shop at the time.我第一次遇到玛丽
是在三年前,当时她在一家无线电商店工作。
I was cooking when she knocked at the door.她敲门时我正在做饭。
(3)一般过去时往往表示某一动作已经完成,而过去进行时却表示动作在持续或未完成。如:
I saw you while you were speaking to the teacher.你在和老师谈话时我看见了你。
注意:有的过去时间状语既可用于一般过去时,也可用于过去进行时,但含义不同。如:
She wrote a letter to her friend last night.她昨晚给她的朋友写了封信。(信写完了)
She was writing a letter to her friend last night.她昨晚一直在给她的朋友写信。(信不一定写完)
一、过去进行时的时间状语
1.when 和while引导的状语从句中,强调某个动作正在进行的过程中时要用进行时态,while表示一段时
间,因此它所引导的状语从句中,谓语动词常用进行时态,如:
When/While we were having supper, the light went out.我们正在吃饭时灯熄灭了。
2.when用作并列连词时,主句常用进行时态,从句则用一般过去时,表示主句动作发生的过程中,另一个意
想不到的动作发生了。如:
I was walking in the street when someone called me.我正在街上走时突然有人喊我。
二、下面几种情况不用一般过去时而要用过去进行时:
1. 表示过去某一阶段暂时性的习惯动作时。如:
Tom was getting up at six o’clock every day that week.汤姆那一周里每天都是六点钟起床。
2. 与always连用表示赞美,厌烦等感情色彩时。如:
John was always coming to school late.约翰上学总是迟到。
Lei Feng was always doing good deeds for the people.雷锋总是为人民做好事。
3. 用来描写故事发生的情景时。如:
It was a dark night. The wind was blowing hard and the rain was falling heavily. A PLA man
suddenly appeared on the river bank. He wanted to cross the river.那是一个漆黑的夜晚,风刮得很
厉害,雨下得很大,一个解放军战士突然出现在河岸上,他想过河去。
4. when作并列连词,表示“(这时)突然”之意时,第一个并列分句用过去进行时,when引导的并列分句
用一般过去时。如:
I was taking a walk when I met him.我正在散步,突然遇见了他。
We were playing outside when it began to rain.我们正在外边玩,这时下起雨来了。
5go, come, leave, start, arrive等动词可用过去进行时表示过去将来的含义。如:
I was leaving for Wuhan that day.那天我正要去武汉。
She was coming later.她随后就来。
三、过去进行时表示婉转语气(只限于want, hope, wonder 等动词),用以提出请求。如:
I was wondering if you could help me.
I was hoping you could send me home.