一般过去时讲解
一般过去时的形式：be动词过去时的句式
肯定句：是原来使用的is换成was;把原来使用的are换成were.
My pencil is on the desk.
I was here yesterday.昨天我在这里。
They are my students.
These rooms were very clean in the morning.
这些房间今天早上很干净。
否定句：是在was/were后面加上not
was not=wasn't
were not=weren't
I was not here yesterday昨天我不在这里。
These rooms were not very clean in the morning.
今天早上这些教室不很干净。
疑问句：
出句子中的was或者were，把was或者were提到句首，且首字母要大写。
I was here yesterday昨天我在这里
Were you here yesterday?
These rooms were very clean in the morning.
Were these rooms very clean in the morning?
I was not here yesterday
Was you not here yesterday?
These rooms were not very clean in the morning.
Were these rooms not very clean in the morning.
含有实义动词过去式的句式
1
肯定句：主语＋过去式＋其他.
They had a good time yesterday.他们昨天玩的很开心。
否定式：主语＋did not/didn't＋动词原形＋其他
先出谓语动词，再在谓语动词前加didn't
They didn't watch TV last night.
He didn't ask her teacher for her toys.
一般疑问句：Did＋主语＋动词原形＋其他?
其肯定回答常用"Yes，主语＋did"
否定回答常用"No,主语＋didn't"
-Did you go to the park yesterday?
-Yes,I did./No,I didn't.
特殊疑问句：疑问句+did+主语+动词原形+其他？
What time did you finish your homework? 你是什么时候做完作业的？
Where did you go yesterday? 昨天你去哪里了？
注意：以疑问词开始的特殊疑问句，回答时，不能用 Yes, No. 直接回答所问的问题即可。
一般过去时态的用法
1
1)主要用于过去某个时间发生的动作或状态。clean的过去式
My father worked in Shanghai last year.
2)表示过去经常或反复发生的动作，常与often,always等表示频度的状语连用。
I often went to school on foot.
3)与When引导的状语从句连用
When he got home，he had a short rest.
一般过去时的时间状语
1一般过去时的时间状语有： a moment ago,yesterday morning, last week/night, the day before yesterday, just now.
规则动词过去式的变化规则
1. 一般情况下在动词原形后直接+ed。如：want-wanted;play-played
2..以不发音的字母e结尾的动词，去e再加ed。如：hope-hoped,live-lived
3.以辅音字母结尾的重读闭音节单词，需先双写最后一个辅音字幕，再加ed。如：stopped.
4.以辅音字母加y结尾的动词，先变y为i，再加ed。如：study-studied; worry-worried.
过去式加ed后的读音规则
①清t：清辅音后＋ed读/t/ worked
②浊、元/d/：浊辅音和元音后＋ed,读音读/d/：浊辅音和元音后读/d/
如：lived,called
③/t/或/d/后读/id/：/t/或/d/＋ed后读/ed/
如：started，needed
ry clean in the morning.
Were these rooms not very clean in the morning.
不规则变化，要逐一熟记。Be 动词的过去式有两种形式， 主语时第一，三人称单数形式用was，其他人称都用were。
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