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2018年英语专业四级过去时态的考点
英语专业四级语法是2018英语专业四级考生复习初期首先要打好基础的部分，因为英语语法贯穿于整个英语专四考试中，尤其是应用于英语四级完形填空及英语四级语言知识题型，下面是应届毕业生考试网为大家整理的2018年英语专业四级过去时态的考点，希望对大家有用。
一、过去进行时
1. 构成
was / were+动词的现在分词。
2. 基本用法
(1) 表示过去某一时间点或一段时间正在进行的动作。如：
What were you doing this time yesterday? 你昨天这个时候在干什么?
Granny fell asleep when she was reading. 奶奶看书时睡着了。
He was writing a book about grammar last year, but I don’t know whether he has finished it.他去年在写一本语法方面的书，但我不知道他现在是否写完了。
What were you talking about just now? 你们刚才在谈什么?
He was working from 7 to 11 last night. 昨晚他从七点一直工作到十一点。
(2) 过去进行时与 always, forever, continually等副词连用，表示满意、称赞、惊讶、厌恶等表示感情色彩。如：
My brother was always losing his keys. 我哥哥老是丢钥匙。
The boy was continually asking the same question. 这个男孩子老是问同一个问题。
(3)动词wonder, hope, think, want等的过去进行时表示语气委婉、客气。如：
We were wondering if you would stay with us for lunch. 我不知你能否留下来和我们一起吃午饭。
I was hoping you give me a chance to try the job. 我很希望你给我一个机会来试一试这个工作。
(4)过去进行时表将来。如：
—What were you doing when he came to see you?
—I had just finished my homework and was leaving to
He said his brother was leaving for Japan tomorrow. 他说他哥哥明天要去日本。
3. 过去进行时和一般过去时的区别
(1) 过去进行时通常表示一个过去正在进行的动作;而一般过去时则通常表示一个过去已经完成的动作。如：
I was reading the newspaper last night. 我昨晚在看书。(不一定看完)
I read the newspaper last night. 我昨晚看了报纸。(已经看完)
He was building a model ship out of wood. 他在那里修一座桥。(不一定建成)
He built a model ship out of wood. 他用木头造了个模型船。(已建成)
(2) 少数动词如rain, snow, cough, wear, feel, work等的一般过去时并不表示动作完成，这时用两种时态都可以，且含义区别不大。如：
It snowed / was snowing all day yesterday. 昨天下了一天的雪。
She didn’t feel / wasn’t feeling well that day. 那天她感到不太舒服。
The child coughed / was coughing all night. 这孩子咳嗽了一整夜。
二、过去完成时
1. 构成
助动词had+动词的过去分词。
2. 基本用法
(1) 过去完成时表示过去某一时刻或某一动作之前已发生或完成的动作、状态(“已完成”)。句中常用by , before , until , when 等引导的时间状语。如：
Yesterday he told me that he hadn’t eaten anything since Tuesday. 他昨天告诉我自星期二以来他一直未吃任何东西。(指从星期二至昨天未吃东西)
I saw Mr. Smith last Sunday. We hadn’t seen each other since we left Paris. 上周星期天我见到史密斯先生了，自从离开巴黎后我们还一直没见过面。
By the end of the year no decision had been made. 到年底也没有做出任何决定。
He had left when I arrived. 当我到达时他已经离开。
(2)过去完成时的动作还可表示过去某一时刻之前发生的动作或状态持续到过去某个时间或持续下去(未完成)。如：
Before he slept, he had worked for 12 hours. 他睡觉之前，工作了12小时。
The film had been on for 5 minutes when I got to the cinema. 当我到达电影院时，电影已经开演五分钟了。
We had scarcely reached the school before it began to rain. 我们刚到学校天就下雨了。
(3) 某些动词如intend / think / plan / expect / hope等的过去完成时表示主语未曾实现的愿望、希望或打算。如：
I had intended to come to see you last night, but someone called and I couldn’t get away. 我原打算昨晚来看你，但有人来访，我拖不开身。
He had hoped to find a job soon.他本来希望很快找到工作。
I had meant to come, but something happened. 我本想来，但有事就没有来。
(4)过去完成时用在hardly / scarcely…when…和no sooner…than 固定结构中。如：
No sooner was the frost off the ground than the work began. 地上的霜一消散，人们就开始工作了。
Hardly had he arrived when she started complaining. 他刚一到, 她就开始抱怨起来。
(5) 过去完成时用于条件分句或wish / would rather等后面的that从句中，表示与过去事实相反的主观愿望。如：
I would have met him, if I had come this morning. 今天早晨我来的话，就会见到他了。
I wish I had seen you yesterday. 我昨天见到你多好。
He would rather she had lent him more money than she did.他本希望她借给他的钱更多些。
3. 过去完成时与一般过去时的区别
过去完成时表示过去某一时间以前(即过去的过去)发生的动作或存在的状态。“过去的过去”是一个相对时间，即它相对于一个过去时间而言，并在其过去。这种相对的“过去的过去”有时通过一定的时间副词(状语)体现出来，有时则可能是通过一定的上下文来体现：
I found the watch which I had lost. 我找到了我丢失的表。
The house was quiet. Everybody had gone to bed. 屋子里很安静，大家都睡觉了。
—Was Jack at the office? —杰克在办公室吗?
— No, he’d gone home. 不在，回家了。
一般过去时表示过去某时发生的动作或存在的状态，但有时某个动作虽然发生在“过去的过去”，但却也可用一般过去时，如：
①当几个过去的动作用and, then, but等连接, 且按照动作发生的先后顺序表达时，几个动作均可用一般过去时。如：
She set out soon after dark and arrived home one hour later. 他天黑后不久动身，一小时后到家。
On Saturday afternoon, Mrs. Green went to the market, bought some bananas and visited her cousin. 星期六下午，格林夫人去市场买了些香蕉，看了她的堂兄。
I bought a radio but lost it. 我买了一部收音机，但丢了。
②由after, before, as soon as 等连词引导时间状语从句，由于这些连词已经清楚地表明了主从句谓语动词的先后顺序，几个动作均可用一般过去时。如：
I told them the news after you (had) left. 你走后我把这消息告诉了他们。
As soon as I (had) put the phone down it rang again. 我刚把电话一放下，它又响了。
③在一定的语境中，表示过去未曾实现想法或打算的过去完成时也可用一般过去时表示：
He hoped to come with us, but he was too busy. 他本想同我们一起来的，但他太忙了。
I thought I could go, but I can’t. 我原认为我能去，但我(现在)去不了。
【注】若没有明确的语境，则宜用过去完成时表示过去未曾实现的想法，否则可能有歧义，如说I hoped to pass the examination. 它只表明过去想通过考试，但并未说明通过与否。如说 I had hoped to pass the examination，则表示过去想通过考试，但实际上未通过。不过在过去式后接不定式的完成式也可明确表示过去未曾实现的想法，如 I hoped to have passed the examination。
三、过去完成时
1. 构成
助动词had+动词的过去分词。
2. 基本用法
(1) 过去完成时表示过去某一时刻或某一动作之前已发生或完成的动作、状态(“已完成”)。句中常用by , before , until , when 等引导的时间状语。如：
Yesterday he told me that he hadn’t eaten anything since Tuesday. 他昨天告诉我自星期二以来他一直未吃任何东西。(指从星期二至昨天未吃东西)
I saw Mr. Smith last Sunday. We hadn’t seen each other since we left Paris. 上周星期天我见到史密斯先生了，自从离开巴黎后我们还一直没见过面。
By the end of the year no decision had been made. 到年底也没有做出任何决定。
He had left when I arrived. 当我到达时他已经离开。
(2)过去完成时的动作还可表示过去某一时刻之前发生的动作或状态持续到过去某个时间或持续下去(未完成)。如：
Before he slept, he had worked for 12 hours. 他睡觉之前，工作了12小时。
The film had been on for 5 minutes when I got to the cinema. 当我到达电影院时，电影已经开演五分钟了。
We had scarcely reached the school before it began to rain. 我们刚到学校天就下雨了。
(3) 某些动词如intend / think / plan / expect / hope等的过去完成时表示主语未曾实现的愿望、希望或打算。如：
I had intended to come to see you last night, but someone called and I couldn’t get away. 我原打算昨晚来看你，但有人来访，我拖不开身。
He had hoped to find a job soon.他本来希望很快找到工作。
I had meant to come, but something happened. 我本想来，但有事就没有来。
(4)过去完成时用在hardly / scarcely…when…和no sooner…than 固定结构中。如：
No sooner was the frost off the ground than the work began. 地上的霜一消散，人们就开始工作了。
Hardly had he arrived when she started complaining. 他刚一到, 她就开始抱怨起来。
(5) 过去完成时用于条件分句或wish / would rather等后面的that从句中，表示与过去事实相反的主观愿望。如：
I would have met him, if I had come this morning. 今天早晨我来的话，就会见到他了。
I wish I had seen you yesterday. 我昨天见到你多好。
He would rather she had lent him more money than she did.他本希望她借给他的钱更多些。
3. 过去完成时与一般过去时的区别
过去完成时表示过去某一时间以前(即过去的过去)发生的动作或存在的状态。“过去的过去”是一个相对时间，即它相对于一个过去时间而言，并在其过去。这种相对的“过去的过去”有时通过一定的时间副词(状语)体现出来，有时则可能是通过一定的上下文来体现：
I found the watch which I had lost. 我找到了我丢失的表。
The house was quiet. Everybody had gone to bed. 屋子里很安静，大家都睡觉了。
—Was Jack at the office? —杰克在办公室吗?
— No, he’d gone home. 不在，回家了。
一般过去时表示过去某时发生的动作或存在的状态，但有时某个动作虽然发生在“过去的过去”，但却也可用一般过去时，如：
①当几个过去的动作用and, then, but等连接, 且按照动作发生的先后顺序表达时，几个动作均可用一般过去时。如：
She set out soon after dark and arrived home one hour later. 他天黑后不久动身，一小时后到家。
On Saturday afternoon, Mrs. Green went to the market, bought some bananas and visited her cousin. 星期六下午，格林夫人去市场买了些香蕉，看了她的堂兄。
I bought a radio but lost it. 我买了一部收音机，但丢了。
②由after, before, as soon as 等连词引导时间状语从句，由于这些连词已经清楚地表明了主从句谓语动词的先后顺序，几个动作均可用一般过去时。如：
I told them the news after you (had) left. 你走后我把这消息告诉了他们。
As soon as I (had) put the phone down it rang again. 我刚把电话一放下，它又响了。
③在一定的语境中，表示过去未曾实现想法或打算的过去完成时也可用一般过去时表示：
He hoped to come with us, but he was too busy. 他本想同我们一起来的，但他太忙了。
I thought I could go, but I can’t. 我原认为我能去，但我(现在)去不了。
【注】若没有明确的语境，则宜用过去完成时表示过去未曾实现的想法，否则可能有歧义，如说I hoped to pass the examination. 它只表明过去想通过考试，但并未说明通过与否。如说 I had hoped to pass the examination，则表示过去想通过考试，但实际上未通过。不过在过去式后接不定式的完成式也可明确表示过去未曾实现的想法，如 I hoped to have passed the examination。
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