一般过去时语法总结
2023-11-17 16:39:57 10 举报AI智能生成
一般过去时的基本用法：1.表示过去确定时间内发生的动作或状态；2.表示过去连续发生的动作；3.表示过去一段时间内经常或反复的动作。
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大纲/内容
主系表结构
1、人称代词主格作主语 + was/were + 形容词作表语
I was angry yesterday.<br>We were busy yesterday.
2、名词作主语 + was/were + 形容词作表语。注意可数名词单数
名词单数用was，名词复数用were
主语是专用名词（单数概念）<br>Nick was thin before.
主语是可数名词单数时<br>his father was busy yesterday.<br>The book was cheap before.
名词复数作主语<br>his students were busy yesterday.<br>computers were expensive before.
不可数名词作主语（单数概念）<br>Oil was cheap before.<br>The water was clean yesterday.
3、人称代词作主语 + was/were + 名词作表语。
注意名词可数单数问题 添加限定词、也要注意逻辑问题。尽量使用表示人的名词作表语。
You were a teacher before.<br>She was a soldier before.
4、名词作主语 + was/were + 名词作表语。
主语名词单数的限定词和冠词。
The boss was an employee before.<br>They were a doctors before.
一般过去式变为否定句的规则
只需要在肯定句be（was/were）后面加一个否定词Not就可以了。
I was a teacher before.I was not a teacher before.
You were great before.You were not great before.
一般过去式变为一般疑问句的规则
只需要将be动词移动到句首，最后再添加问号?就可以了。<br>但是有时候是需要根据实际情况，将主语的人称改变一下（人称换be也需要换），更符合逻辑。
I was a teacher before.<br>Were you a teacher before?
We were students before.<br>Were you students before?
一般过去时态的时间状语
一般情况下，一般过去时态是需要加上表示过去的时间状语。可以直接使用一些表示过去的副词
yesterday昨天、just now刚才、the day before yesterday前天、before以前
I was hunger just now.
大部分表示过去的时间状语，都是由介词或者副词跟其他词语构成的。
由副词ago(…前)构成，在ago前面加上表示时间的词语。
One/a/an + 表示时间名词的单数 + ago
One hour ago
数词(>2) + 表示名词时间的复数 + ago
Three days ago<br>I was busy three days ago.
由介词in(在) 构成
在 in 的后面加上一个表示过去年份的数词
In 2018 = 2018 年<br>I was young in 2018.
由副词 last （上一个）后面加上表示时间的词语 Last + 表示时间的单数
Last hour、Last week、Last month、Last night、Last autumn
I was run last morning.<br>She was busy last week.
This/that + 表示时间的名词单数有时候也可以表达过去的时间概念
this可以今天的某个片段，that可以指之前某天 <br> This morning. （现在已经不是早上了）<br>I was tired this morning.
主谓宾结构
直接将谓语动词变化为过去式就可以了，但是如果主语为可数名词时，要注意名词的变化规则
人称代词主格 + 不及物动词过去式 + 过去的时间状语
I cried last morning.<br>We worked three days ago.<br>She ran this noon.
名词 + 不及物动词过去式 + 过去的时间状语
My father slept last night.<br>The boy swam five hours ago.
人称代词主格 + 及物动词过去式 + 宾语 + 过去的时间状语
I bought the book last day.<br>You borrowed money yesterday.
名词 + 及物动词过去式 + 宾语 + 过去的时间状语
Your friend bought the book last day.<br>His friend broke his cellphone yesterday.
一般过去时的主谓宾变一般疑问句。
在句首加助动词did，并把动词变为原型，有时候需要根据逻辑需要把人称变一下。
I bought the book last day.<br>Did you buy the book last day?
一般过去时的主谓宾变一般否定句。
在谓语动词前面加助动词did的否定式 did not，并且将谓语动词变为原型
I bought the book last day.<br>I did not buy the book last day.
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