在英语里什么是过去式

　　过去式是英语语法的一种，表示过去某个时间里发生的动作或状态。一般过去式的动词通常用动词的过去式形式来表示，而动词的过去式是在动词原形的基础上变化的。动词的过去式可分为规则动词和不规则动词。　用法

　　一般过去时的用法一.概念：一般过去时是表示在过去的时间里发生的动作或状态，通常与表示过去的时间状语连用。

　　二.时间状语：yesterday,the day before yesterday,two days ago,long long ago,a minute ago,lastyear(week,month),just now,at that time,in those days.

　　三.过去时的用法：1.有确定的过去时间状语时要用过去式。

　　例：We had a good time last week.

　　2.表示过去连续发生的动作时，要用过去式。

　　例：The boy closed the door,turned off the window,and then went to bed.

　　⒊ 表示过去一段时间内经常或反复的动作，要用过去式。

　　例：She often came to help me at that time.

　　四.一般过去式的构成形式：☆Be动词的过去式：⑴肯定句：主语+ be动词的过去式(was,were)

　　例：He was ill yesterday. She was nine two years ago.They were my students long long ago.

　　⑵否定句：主语+ be动词的过去式(was,were)+ not

　　例：He was not ill yesterday.She was not nine two years ago.They were not my students long long ago.

　　⑶一般疑问句：直接把be动词提到句首。

　　例：Was he ill yesterday?

　　肯定回答：Yes,he was.

　　否定回答：No,he wasn't.Was she nine two years ago? Yes,she was. / No,she wasn't.Were they your students long long ago? Yes,they were. / No,they weren't.

　　☆实意动词的过去式：⑴肯定句：主语+动词的过去式

　　例：He played football last week.She watched TV last night.

　　⑵否定句：主语+ did not +动词原形

　　例：He did not play football last week.She didn’t watch TV last night.

　　⑶一般疑问句：Did +主语+动词原形 例：Did he play football last week?

　　回答：Yes,he did./ No,he didn't.

　　Did she watch TV last night?

　　回答：Yes,she did. / No,she didn’t.

　　五.动词变过去式的几种常用规则：1.一般动词直接+ ed;

　　例：look--looked want--wanted listen --listened

　　2.以e结尾的词直接+ d;例：live--lived phone--phoned

　　3.以辅音字母加y结尾，变y为i加ed;例：try--tried study--studied

　　4.重读闭音节结尾的，词尾只有一个辅音字母，双写词尾辅音字母+ ed;例：stop--stopped plan--planned

　　⒌不规则动词： 动词由原形转变为过去式时不按词尾加“-ed”之变化规则者叫做不规则动词。小学常见的动词不规则过去式如：是be/is/am/are- was，是are- were，来come-came，去go- went，有have- had，做/干do- did，做make- made 读read- read，放put- put，切割cut- cut，写write- wrote，带走take- took，买buy- bought，带来bring- brought，想think- thought，看见see- saw，说say- said，说话speak- spoke，打破break- broke，得到get- got，跑run- ran，告诉tell- told，唱sing- sang，喝drink- drank，吃eat- ate，游泳swim- swam，开始begin- began，偷steal- stole，遇见meet- met，卖sell- sold，坐sit- sat，跑run-ran,读read-read，想要want-want，知道know-known，fall-fell等等。

　　I worked in that factory last year. 我在那一家工厂工作。I went to the Tian Long Mountain yesterday. 昨天我们去了天龙山。I stayed at home,yesterday.昨天，我整日呆在家里.

　　一般过去时态：表示过去某一时间所发生的动作或存在的状态。谓语动词要用一般过去式。

　　时间标志：yesterday(昨天)，last weekend(上周)，last month(上个月)，last year，two months ago(两个月前)，the day before yesterday(前天)，in 1990 (在1990年)，in those days (在那些日子里)等表示过去的时间状语。