一般过去时表示过去某个时间发生的动作或存在的状态，也可表示过去经常或反复发生的动作。常和yesterday,ago,last week等表示过去的时间状语连用。

一、概念

表示在的过去某个时间里所发生的动作或存在的状态。通常在句子里找到表示过去时间的词或词组。如：yesterday，yesterday morning，yesterday afternoon，yesterday evening，the day before yesterday(前天)，last night，last week，last month，last year，a moment ago(刚才)，just now(刚才)，two days ago，a week ago，in 1990等。如：I went to bed ateleven last night.昨晚我11：00睡觉。

二、动词过去式的构成规律

(一)规则动词的过去式

1、一般情况下，在动词原形后面加-ed;如：look→looked play→played;

2、以不发音e结尾的动词，在词尾直接加-d;如：live→lived use→used;

3、以“辅音字母+y”结尾的动词，先将y改为i,再加–ed;如：study→studied,try→tried fly→flied

4、以重读闭音节(即辅音+元音+辅音)或r音节结尾，末尾只有一个辅音字母的动词，要先双写这个辅音字母后，再加–ed。如：stop→stoppedplan→planned;

(二)不规则动词的过去式

1、改变动词中的元音;

begin→began drink→drank come→came eat→ate grow→grew run→ran know→knew win→won speak→spoketake→took write→wrote get→got

2、变词尾的–d为–t;build→built lend→lent send→sent spend→spent bend→bent

3、与动词原形一样;cut→cut put→put cost→cost hurt→hurt shut→shut

4、变-ay为-aid(少数动词);say→said pay→paid lay→laid

5、采用不同词根;sell→sold teach→taught buy→bought

6、其他。如：am/is→was are→were have/has→had do→did

三、句式变化

(一)一般过去时的一般疑问句

1、把was,were放在句首，其余位置不变。由Was…?引导的一般疑问句，肯定答为：Yes，…was.否定回答为：No，….wasn’t.由Were…?引导的一般疑问句，肯定回答为：Yes，…were.否定回答为：No，…weren’t.如：

(1)I was born in Shanghai.→Wereyou born in Shanghai?

→Yes,I was.(肯定回答)→No,I wasn’t.(否定回答)

(2)They were in Li Yan’s home last night.

→Were they in Li Yan’s home lastnight?

→Yes,they were.(肯定回答)→No,they weren’t.(否定回答)

2、在行为动词的句子中，要用助动词词did来引导，其余的语序不变。要注意的是，要把行为动词的过去式改为原形。肯定回答为：Yes,…did.否定回答：No,…didn’t.如：

John played computer games lastnight.

→Did John play computer gameslast night?

→Yes,he did.(肯定回答)→No,he didn’t.(否定回答)

(二)一般过去时的否定句

1、在表示过去存在的状态的句子中，相接在was,were的后面加上not。

如：(1)He was in the park the day before yesterday.→He was not in the park the day beforeyesterday.

(2)We were busy last week.→We were not busy last week.

2、在表示过去的时间发生的动作的句子中，要在行为动词的前面加助动词didn’t.然后把过去式的行为动词改为动词原形。即：didn’t+动词原形。如：

(1)She played the violin last night.→She didn’t play the violin last night.

(2)They swam in the lakeyesterday.→They didn’t swim in thelake yesterday.

(三)一般过去式的特殊疑问句

1.What did…?(主要是询问过去发生了什么事情，注意要把过去式改为动词原形。)

We ate Chinese food lastnight.→What did we eat last night?

2.Where did?(主要是询问过去事情发生的地方。)

They sang and dance in the musicroom yesterday morning.

→Where did they sing and danceyesterday morning?

3.Who+动词过去式…?(主要是询问过去事情发生的人物。)

Mike and Tom climbed mountainslast weekend.

→Who climbed mountains lastweekend?

四、句子结构

1、在表示某个时间里存在的状态的句子，系动词用过式was，were构成。如：

(1)I was at home yesterday.昨天我在家。(2)We were in the gym just now.刚才我们在体育馆。

2、在表示过去某个时间里发生的动作，用动词的过去式构成。如：

I visited my uncle yesterday.昨天我拜访了我的叔叔。

3、各种句式

(1)一般过去时的肯定陈述句：

主语+动词过去式+宾语或表语。

He worked in Shanghai tenyears ago.

(2)一般过去时的否定句：

a.主语+didn’t+动词原形+宾语。(did+not=didn't)

He didn't do morning exercises yesterday.

b.主语+wasn’t/weren’t+表语。(was+not=wasn't were+not=weren't)

He wasn't an English teacher tenyears ago.

(3)一般过去时的一般疑问句：

a.Did+主语+动词原形+宾语?

Did you study English in 1990?

b.Was/Were+主语+表语?

Was he a pupil five years ago?

(4)一般过去时的特殊疑问句：

a.特殊疑问词+did+主语+动词原形+宾语?

Where did your parents live five years ago?

What did you do last Sunday?

b.特殊疑问词+were/was+表语?

Who was at the zoo yesterday?

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