过去一般时态ppt课件

1、过去普通时态的原理;一、过去普通时态的构成：一、过去普通时态的构成：; 1. 判别动词判别动词be:; (1) 一定句一定句 主语主语 + was或或were + 表语表语 + 状语状语 . He was a student ten years ago.; (2) 否认句否认句 主语主语 + was或或were + not + 表语表语 + 状状语语 .He was not a student ten years ago.* was + not = wasnt * were + not = werent ;(3) 普通疑问句普通疑问句 Was或或Were + 主语主语 + 表语表语 + 状语状

2、语 ? Was he a student ten years ago?;4特殊疑问句特殊疑问句 A. 疑问词作主语疑问词作主语 + was /were + 表语表语 + 状语状语 ? Who was a teacher ten years ago ? What was in front of the house ten years ago?; B. 疑问词不作主语疑问词不作主语+ was /were + 主语主语 + . ? What表语表语 was he ten yeas ago ? 状语状语;2. 行为动词行为动词 和和 其他判别动词其他判别动词:;(1) 一定句一定句 主语主语 + 行为

3、动词过去式行为动词过去式 或或 其他其他判别动词过去式判别动词过去式+ . He bought an MP4 yesterday.; I became a teacher twenty years ago.; * 英语中的绝大多数动词是规那么动词，个别动词是不规那么动词。 规那么动词的过去式=该动词的原形+-ed;不规那么动词的过去式有特殊方式见“不规那么动词表。; (2) 否认句否认句 主语主语 + did not +行为动词原形行为动词原形 或或 其他判别动词原形其他判别动词原形+ .* did + not = didnt He did not buy an MP4 yesterday.I

4、 did not become a doctor. I became a teacher.;(3) 普通疑问句普通疑问句 Did + 主语主语 +行为动词原形行为动词原形 或或 其其他判别动词原形他判别动词原形+ ? Did he buy an MP4 yesterday? Did you become a doctor ten years ago ?;4特殊疑问句特殊疑问句 A. 疑问词作主语疑问词作主语 +行为动词行为动词过去式或过去式或 其他判别动词过去式其他判别动词过去式+ ? Who bought an MP4 yesterday ?; B. 疑问词不作主语疑问词不作主语+ did+

5、 主语主语 + 行为动词原形行为动词原形 或或 其他判别动词其他判别动词原形原形 + ? What did he buy yesterday?;3. “There be句型句型 的的过去普通时态过去普通时态:; (1) 一定句一定句 There + was或或were + 主语主语 + 状状语语 . There was a tall tree in front of our school ten years ago.; (2) 否认句否认句 There + was或或were + not + 主语主语 + 状语状语 .There was not a tall tree in front of

6、our school ten years ago.;* was + not = wasnt * were + not = werent ;(3) 普通疑问句普通疑问句 Was或或Were + there + 主语主语 + 状状语语 ?Was或或Were + there + a tall tree +in front of our school ten years ago?;4特殊疑问句特殊疑问句 A. 疑问词作主语疑问词作主语 + was /were + 表语表语 + 状语状语 ? What +was +in front of our school + ten years ago? 主语主语

7、表语表语 状状语语; B. 疑问词不作主语疑问词不作主语+ was /were there + 主语主语 + . ? When + was there + a tall tree 主语主语 in front of our school ? 地点状语地点状语;二、过去普通时态的定义用法二、过去普通时态的定义用法;1. 概括表达过去的事情，概括表达过去的事情， 概括表达过去发生了什么事。概括表达过去发生了什么事。 2. 概括表达过去的普通情况。概括表达过去的普通情况。;* 过去普通时态的过去普通时态的“过去可以很过去可以很详细，可以不太详细，也可以很详细，可以不太详细，也可以很模糊。模糊。 【例【

8、例1】 I saw Jane and her boy-friend in the park at 8 oclock yesterday evening. 时间很详细时间很详细(但不展但不展开过程开过程;【例2】He bought an MP4 yesterday. (时间不太详细)概括表达 【例3】 I often took cold baths when I was young. 时间很模糊 概括表达过去的普通情况;* 只需一个只需一个“过去，用过去普通过去，用过去普通时态或过去进展时态。时态或过去进展时态。 Yesterday I had watched a basketball matc

9、h. ( ) Yesterday I watched a basketball match. ( );* 一连串的、紧接着发生的过去的动一连串的、紧接着发生的过去的动作，都用过去普通时态，不再区分作，都用过去普通时态，不再区分先后。先后。 【例【例4】 Hurriedly, she dropped a glass of milk on the floor, so she had to clean it. Then she got her handbag and hurried out. ;【例5】 The king heard the music from his window, and su

10、mmoned the girl to the palace. ;* 两个过去的动作A和B，假设A发生在B的过程中，那么，A用过去普通， B用过去进展。I was playing the piano when he came in.;* “过去普通时态的动作或形状，过去普通时态的动作或形状，对对“如今此时此刻来说，如今此时此刻来说， 都是都是“完成了的。完成了的。但但“过去普通时态仅表过去普通时态仅表“过去，过去， 看不出看不出“如今此时此刻如今此时此刻的情况。的情况。 而如今完成时态，而如今完成时态，用过去阐明如今，能看出现状。用过去阐明如今，能看出现状。;The doctor saved the boy. The boy is talking with the doctor. ( ) The doctor has saved the boy. The boy i