过去完成时详细讲解17250
过去完成时的详细讲解和练习题(全面解析)

过去完成时的详细讲解和练习题(全面解析)1. 过去完成时的定义和用法过去完成时(Past Perfect)是英语中用来表示在过去某个时间之前已经发生或完成的动作或状态的时态。
它通常和过去时态(Simple Past)一起使用,用来区分先后发生的动作或事件。
2. 过去完成时的结构过去完成时的结构由 "had" + 动词的过去分词构成。
例如:- I had finished my homework before she arrived.- They had already left when we got there.3. 过去完成时的用法过去完成时主要用来表达以下几个情况:- 表示在过去某个时间之前已经完成的动作或状态。
例如:- She had already left when I called her.- They had finished their dinner before the movie started.- 用来构建时间顺序上的递进或对比关系。
例如:- He had visited many countries before he settled down in France.- I had never seen such a beautiful sunset until that day.- 用于条件句中,表示在过去某个时间之前的假设情况。
例如:- If I had known the truth, I would have acted differently.4. 过去完成时的练题请根据句意和语境,使用适当的过去完成时形式填空。
1. By the time I arrived, they __________ their dinner.2. She __________ the book before she went to bed.3. If he __________ more carefully, he wouldn't have made that mistake.4. They __________ their work before the deadline.5. We __________ all the tickets by the time you arrived.参考答案:1. had finished2. had read3. had driven 5. had sold。
精华版过去完成时讲解

过去完成时一、过去完成时的概念与结构特点概念:过去完成时表示在过去某一时间或动作之前已经发生或完成了的动作,即“过去的过去( past-in-the-past )”。
----|--------------------------|-------------------------------|---------------------------->那时以前那时现在构成:过去完成时由“助动词 had + 过去分词”构成,其中 had 通用于各种人称。
They had already had breakfast before they arrived at the hotel.She had finished writing the composition by 10 :00 this morning.二、过去完成时的判断依据1. 由时间状语来判定一般说来,各种时态都有特定的时间状语。
与过去完成时连用的时间状语有:( 1 ) by + 过去的时间点。
如: I had finished reading the novel by nine o'clock last night.( 2 ) by the end of + 过去的时间点。
如: We had learned over two thousand English words by the end of last term.( 3 ) before + 过去的时间点。
如: They had planted six hundred trees before last Wednesday.2. 由“过去的过去”来判定。
过去完成时表示“过去的过去”,是指过去某一动作之前已经发生或完成的动作,即动作有先后关系,动作在前的用过去完成时,在后的用一般过去时。
这种用法常出现在:( 1 )宾语从句中当宾语从句的主句为一般过去时,且从句的动作先于主句的动作时,从句要用过去完成时。
过去完成时

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Hard…when.. 一…就peak when the audience interrupted him. 他刚开始演讲,听众就打断了他。 注意: 把 hardly 提前,须倒装 Hardly had he begun to speak when the audience interrupted him.
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(8)过去完成时还可用在hardly…when…, no sooner…than…, It was the first (second, etc) time (that)…等固定句型中。
It was the third time that he had been out of work that year.
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(3)叙述过去发生的事情,在已叙述了过 去发生的事情后,反过来追述或补述以前 发生的动作时,常使用过去完成时。
例如: Mr. Smith died yesterday. He had been a good friend of mine. 史密斯先生昨天去世了。他以前是我的好友。 I didn’t know a thing about the verbs, for I had not studied my lesson. 我对动词一无所知,因为我没有好好学习功课。
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时间状语
过去完成时的时间状语 before, by the time, until , when, after, once, as soon as
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用法
(1)表示在过去某一时刻或动作以前完成了的动 作,也可以说过去的时间关于过去的动作。即 “过去的过去”。 可以用by, before等介词短语或一个时间状语从 句来表示,也可以用一个表示过去的动作来表示, 还可能通过上下文来表示。 例如: By nine o’clock last night, we had gotten 200 pictures from the spaceship.
过去完成时(详细讲解)

目 录
• 过去完成时基本概念 • 过去完成时用法详解 • 过去完成时与现在完成时对比 • 过去完成时常见错误及纠正 • 过去完成时典型例句分析 • 过去完成时在写作和口语中的应用
01 过去完成时基本概念
定义与构成
定义
过去完成时表示在过去某一时间 或动作之前已经发生或完成的动 作,即“过去的过去”。
主语 + had + not + 过去分词:表示主语在过去某一时间之前尚未完成的动作,即“过去 的过去”的否定形式。
主语 + had + just/already/ever/never等 + 过去分词:这些副词与过去完成时连用,表示 不同的时间概念和语气。例如,“just”表示“刚刚”,“already”表示“已经”, “ever”表示“曾经”,“never”表示“从未”。
02 过去完成时用法详解
表示过去某一时间前已完成的动作
动作发生在过去的过去
过去完成时表示在过去某一时间或动 作之前已经发生或完成的动作,即“ 过去的过去”。
强调动作的完成
过去完成时强调动作在过去某一时间 之前已经完成,不强调动作发生的具 体时间。
表示过去某一时间前已开始并持续到过去的动作
动作在过去某一时间前开始
过去完成时还可以在复合句中表 达“过去的过去”,即在过去某 个时间之前已经完成的动作。
在复合句中,过去完成时常用在 主句或从句中,表示一个动作在 另一个动作之前已经完成。
例如:By the time he was ten, he had learned to play the piano. 他十岁时就已经学会了弹钢 琴。
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现在完成时的时间参照点是现在 ,表示从过去某个不确定的时间 开始一直持续到现在的动作或状 态。
初中英语过去完成时详细讲解

初中英语语法过去完成时详细讲解过去完成时是英语中一种表示过去某一时间点之前已经发生的动作或情况的时态。
它由"had + 过去分词"构成。
过去完成时的用法如下:1. 表示在过去某一时间点之前已经完成的动作:①She had already finished her homework when I arrived.(我到达时,她已经完成了作业。
)这里表示在我到达之前,她已经完成了作业。
②They had left before the concert started.(音乐会开始之前,他们已经离开了。
)这里表示在音乐会开始之前,他们已经离开了。
2. 表示在过去某一时间点之前持续的动作或状态:①He had been studying English for three years before he moved to England.(在他搬去英国之前,他已经学习英语三年了。
)这里表示在他搬去英国之前,他一直在学习英语。
需要注意的是,过去完成时强调的是过去某一时间点之前的动作或情况。
因此,常与过去的时间状语连用,如before、after等,以明确指定过去的时间点。
另外,过去完成时常与过去简单时连用,用于表示两个过去的动作或情况的先后顺序。
过去完成时的动作通常发生在过去简单时的动作之前。
例如:①She had finished her homework before she went to bed.(她在睡觉前已经完成了作业。
)②They had already left when I arrived at the party.(当我到达派对时,他们已经离开了。
)总结起来,过去完成时用于表示过去某一时间点之前已经发生的动作或情况,常与过去的时间状语连用,以明确指定过去的时间点。
同时,过去完成时通常与过去简单时连用,以表示两个过去的动作或情况的先后关系。
过去完成时用法详解

过去完成时用法详解1. 过去完成时简介过去完成时是英语中的一种时态,用来表示在过去某个时间点之前已经完成的动作或状态。
它通常由had(助动词“have”的过去式)和动词的过去分词构成。
2. 过去完成时的构成过去完成时的句子结构为had + 过去分词。
其中,had作为助动词,根据主语的人称和数的不同变化。
过去分词则是动词的过去式形式。
例如:- I had finished my homework before dinner.- She had already left when I arrived.3. 过去完成时的用法3.1 表示在过去某个时间点之前已经完成的动作过去完成时常用来表示在过去某个时间点之前已经完成的动作或状态。
这个时间点通常是用来作为对比的参照点。
例如:- He had studied English for five years before he moved to the United States.- They had already eaten when we arrived at the restaurant.3.2 表示过去的过程或顺序过去完成时也可以用来表示过去发生的一系列动作或事件中的先后顺序。
例如:- By the time I woke up, they had already left the house.- She had written the email, packed her bags, and left for the airport.3.3 与过去时态的区别过去完成时与过去时态有所区别。
过去完成时强调过去某个时间点之前完成的动作或状态,而过去时态则表示在过去的某个时间内发生的动作或情况。
例如:- He had finished his work. (过去完成时,表示在过去某个时间点之前完成)- He finished his work. (过去时态,表示在过去的某个时间内完成)4. 一些常见的信号词一些常见的信号词可以帮助我们判断何时使用过去完成时,包括:- before- after- by the time- when- already例如:- They had already left when I called them.- By the time she arrived, he had already left.5. 总结过去完成时是英语中一种常用的时态,用来表示在过去某个时间点之前已经完成的动作或状态。
过去完成时讲解全解课件

选择题练习
答案与解析: A. been on (正确)
选择题练习
• B. come on
ቤተ መጻሕፍቲ ባይዱ
填空题练习
• 填空题1: By the time I my homework, my parents dinner.
填空题练习
• 答案与解析:
• 填空1答案与解析: finished (正确) • 填空2答案与解析: had cooked (正确) • 解析: 句意是“当我完成作业的时候,我的父母已经做好了晚饭”。根据时间状语从
翻译练习
• 翻译1: 我已经完成了我的作业,现在我可以去看电影了。
翻译练习
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答案与解析:
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翻译: I have finished my homework, now I can go to the movies. (正确)
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解析: 这句话的意思是“我已经完成了作业,现在我可以 去看电影了”。根据语境可知,这句话应该用现在完成时, 表示过去的某个动作对现在的影响。因此,正确的翻译是 “I have finished my homework, now I can go to the movies”。
在过去的某个时间点之前已经存在的状态
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总结词
表示在过去的某个时间点之前已经存在的状态,这个状 态可能一直持续到该时间点。
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详细描述
过去完成时也可以用来描述在过去的某个时间点之前已 经存在的状态,这个状态可能一直持续到该时间点,并 且可能对后续的状态或动作产生影响。
示例
He had known her for many years before they got married. (在他们结婚之前,他已经认识她很多年了。)
过去完成时课件

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CATALOGUE
过去完成时的语境
在什么情况下使用过去完成时
在描述过去的某个时间点之前已 经完成的动作时使用过去完成时
语境不同
过去完成时通常用于描述过去的某个时间点之前的情况,而现在完成时则用于 描述当前的情况或对现在的影响。
过去完成时与一般过去时的比较
动作完成时间点不同
过去完成时表示动作在过去的某个时 间点之前已经完成,而一般过去时则 表示动作在过去的某个时间点发生。
语境不同
过去完成时通常用于描述过去的某个 时间点之前的情况,而一般过去时则 用于描述过去的某个具体事件或行为 。
。
在表示过去的某个动作对另一个 过去的动作产生了影响时使用过
去完成时。
在描述过去的某个时间点之前已 经存在的状态时使用过去完成时
。
过去完成时与现在完成时的区别
时间点不同
过去完成时描述的是过去的某个时间点之前已经完成的动作或存在的状态,而 现在完成时则描述的是从过去到现在为止已经完成的动作或存在的状态。
过去完成时的基本结构
基本结构为“had+过去分词”,例 如“I had finished my homework before my mother came home.”
过去完成时的否定形式为“had not+ 过去分词”,例如“I had not finished my homework by the time my mother came home.”
bed.
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过去完成时使用要点:
1两个动作都发生在过去。 2一个先发生,一个后发生。先发生的动作用过去完成, 后发生的动作用一般过去。
• Audrey had put all her effort into ballet training before she entered the film industry.
Daniel arrived out of breath because he had gone to the wrong cinema.
Which happened first?
1. Millie ran back to schoolb. ecause Millie left her magazine in the classroom.
Amy went to the police station.
Amy went to the police station after she had lost her purse.
5. The program was on for half an hour.
I got home.when
The program had been on for half an hour when I got home.
Grammar (A) The Past Perfect Tense
The present perfect tense(现在完成时)
Have / has + the past participle I have received a letter from Lily recently. Has he handed in her homework yet? He has just gone to Beijing. They have never been to the USA. We have lived here for ten years.
3. Daniel arrived out of breathb. ecause Daniel went to the wrong cinema.
Daniel arrived out of breath because he had gone to the wrong cinema.
4. Amy lost her pursea. fter
Millie ran back to school because she had left her magazine in the classroom.
2. Simon left school lateb.ecause The football game started late.
Simon left school late because the football game hg in Green’s family yesterday
Sara finished her computer work at 12:00 p.m.
Jim went to sleep at 10:00 p.m.
Jim had gone to sleep when Sara finished her computer work.
past perfect tense(过去完成时)
由had +过去分词构成 表示过去的过去生的动作 构成方式:
6. She learnt many English wordbsef.ore
She came to our school.
She had learnt many English words before she came to our school.
Something in Green’s family yesterday
2. Simon left school lateb.ecause The football game started late.
Simon left school late because the football game had started late.
3. Daniel arrived out of breathb. ecause Daniel went to the wrong cinema.
Mr. Green got up at 6:30 a.m.
Mrs. Green got ready for the breakfast before 6:30 a.m. Mrs. Green had got ready for the breakfast when Mr. Green got up at 6:30 a.m.
Something in Green’s family yesterday
Jim finished his homework at 7:00p.m.
Mr. Green drove back home at 7:30 p.m. Jim had finished his homework when his father drove back last night.
former action
later action
• Audrey had been a model before she became a Hollywood superstar.
former action
later action
• Audrey had won an Oscar for Best Actress already when she won the Tony Awards.
former action
later action
Which happened first?
1. Millie ran back to schoolb. ecause Millie left her magazine in the classroom.
Millie ran back to school because she had left her magazine in the classroom.