今天我们一起学习英语基础语法中的一般过去时。
一般过去时，有时被称为“过去式”，我们可以用几种形式来谈论过去，但过去时是我们使用最多的一种。
我们该如何使用一般过去时这个时态呢？
一般过去时有两种基本结构：
1 肯定句（Positive sentences）
2 否定句和疑问句（Negative and question sentences）
请看以下使用主要动词go（不规则） 和work（规则）的示例：
从上面的表中，请注意以下几点：
01
对于肯定句
1、没有助动词。
2、在一般过去时中，主动词的变化都是在末尾加ed或者不规则变化（如go→went）
There is no auxiliary verb.
The main verb is conjugated in the Past Simple, invariable: -ed (or irregular)
02
对于否定和疑问句
1、助动词是始终不变的,如 did
2、主动词是始终不变的基本形式（即原型）
3、对于否定句，我们在助动词和主要动词之间插入not
4、对于疑问句，我们只需把主语和助动词交换位置即可
The auxiliary is conjugated in the Past Simple, invariable: did
The main verb is invariable in base form: base
For negative sentences, we insert not between the auxiliary verb and main verb.
For question sentences, we exchange the subject and the auxiliary verb.
带动词Be的过去式（Past Simple with main verb be）
一般过去时和有主动词be的时候的句子结构：
The structure of the Past Simple with the main verb be is:
看以下栗子：
从上表中，请注意以下几点：
1、他们都没有助动词（did）甚至连否定句和疑问句中也没有了（注：之前无主动词be时，疑问句否定句中有did）
2、主动词be在一般过去时中只有两种形式：was，were
3、对于否定句我们把not放在主动词之后
4、对于疑问句我们把主语和主动词调换位置即可
There is no auxiliary verb, even for questions and negatives.
The main verb (be) is conjugated in the Past Simple: was, were
For negative sentences, we insert not after the main verb.
For question sentences, we exchange the subject and the main verb.
我们该如何使用一般过去时呢？
我们用一般过去时讨论过去的一个行为或一个情景、事件。这个事件可以是短期或长期的。
We use the Past Simple tense to talk about an action or a situation – an event – in the past. The event can be short or long.
这里是一些短期事件的栗子：
Here are some short events with the Past Simple:
这是一些长期事件的栗子：
Here are some long events with the Past Simple tense:
注意，对于事件是多久之前发生的并不重要，几分钟，几秒前或者是几百万年前都不重要。同样的，对于这个事件持续了多久也不重要
Notice that it does not matter how long ago the event is: it can be a few minutes or seconds in the past, or millions of years in the past. Also it does not matter how long the event is.
它可以是几毫秒（如汽车爆炸），也可以是数百万年（如侏罗纪），我们在以下场景会用到一般过去时：
It can be a few milliseconds (car explosion) or millions of years (Jurassic period). We use the Past Simple tense when:
1、这件事已经过去了
2、这件事已经完成了
3、我们表达（或者理解）这件事件的时间或者地点
the event is in the past
the event is completely finished
we say (or understand) the time and/or place of the event
这里是一些栗子：
I lived in that house when I was young.
He didnt like the movie.
What did you eat for dinner?
John drove to London on Monday.
Mary did not go to work yesterday.
Did you play tennis last week?
I was at work yesterday.
We were not late (for the train).
Were you angry?
注意，当我们讲故事时，通常都会用一般过去时。我们可能可以用过去进行时开始一个场景，但是我们总是用一般过去时表示一个动作。用下面故事的开头当例子：
Note that when we tell a story, we usually use the Past Simple. We may start with the Past Continuous tense to “set the scene”, but we almost always use the Past Simple tense for the action. Look at this example of the beginning of a story:
“The wind was howling around the hotel and the rain was pouring down. It was cold. The door opened and James Bond entered. He took off his coat, which was very wet, and ordered a drink at the bar.
He sat down in the corner of the lounge and quietly drank his…”
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