七年级下一般过去时ppt课件.ppt
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1、The Simple Past Tense一般过去时态一般过去时态新目标英语七年级语法解析新目标英语七年级语法解析一、用法: 1.表示过去某个时间发生的动作或存在表示过去某个时间发生的动作或存在的状态,常和表示过去的时间状语连用的状态,常和表示过去的时间状语连用, 如:如:last night, in 1990, two days ago, yesterday等。等。 He went to work by bus last year. I was ten years old last year.2.也表示过去经常或反复发生的动作,常和也表示过去经常或反复发生的动作,常和表示频度的时间状语连用。
2、如:表示频度的时间状语连用。如:often, always, usually, sometimes 等。等。 He was often late for school last week. He always went to work by bus last year. 二、规则动词过去式的构成二、规则动词过去式的构成大多数动词的过去式是在动词原形后加大多数动词的过去式是在动词原形后加 ed 构成。构成。1)一般情况下在词尾直接加)一般情况下在词尾直接加 ed.如:如: play played; work worked; stop stopped 2)以)以e结尾的动词只加结尾的动词只加d.
3、如:如: like liked; love loved 3) 以辅音字母以辅音字母+y结尾的动词,变结尾的动词,变y 为为i,再加,再加ed. 如:如: study studied; worry worried4) 以重读闭音节结尾的动词,如果末尾只有一以重读闭音节结尾的动词,如果末尾只有一 个辅音字母,要双写最后这个辅音字母,再个辅音字母,要双写最后这个辅音字母,再 加加ed. 如:如: stop stopped 三、动词过去式三、动词过去式ed的读音的读音-ed 的读音规则如下:清音的读音规则如下:清音t;浊元;浊元d;t d后面读后面读id.1) 在清辅音后面读在清辅音后面读t. wor
4、k worked; help helped 2) 在浊辅音或元音后读在浊辅音或元音后读d. learn learned 3) 在在t 和和d 后读后读id. start started动词一般过去时,表示过去发生的事;动词一般过去时,表示过去发生的事;bebe用用waswas或用或用were, have, haswere, have, has变变hadhad;谓语动词过去式,过去时间作标志;谓语动词过去式,过去时间作标志;一般动词加一般动词加-ed-ed,若是特殊得硬记。若是特殊得硬记。否定句很简单,主语之后否定句很简单,主语之后didntdidnt添;添;疑问句也不难,疑问句也不难,didd
5、id放在主语前;放在主语前;如果谓语之前有如果谓语之前有diddid,谓语动词需还原;谓语动词需还原;动词若是动词若是was, were,was, were,否定就把否定就把notnot添。添。四、一般过去时的分类1be 动词的一般过去时态:有人称和数的变化动词的一般过去时态:有人称和数的变化(am/is 的过去式为的过去式为was; are的过去式为的过去式为were.)肯定句:主语肯定句:主语+was (were) + I was late yesterday. 否定句:主语否定句:主语+was (were) +not+ We werent late yesterday. 疑问句:疑问句:
6、Was (Were) +主语主语+? Were you ill yesterday? 肯定回答:肯定回答:Yes, 主语主语+ was/were. Yes, I was.否定回答:否定回答: No, 主语主语+wasnt/werent. No, I wasnt.特殊疑问句:特殊疑问句: 特殊疑问词特殊疑问词+一般疑问句一般疑问句+? When were you born? 2实义动词的一般过去时态实义动词的一般过去时态:没有人称和数的变化肯定句:主语肯定句:主语+动词过去式动词过去式+ I went home at eight yesterday.否定句:主语否定句:主语+didnt +动词原
7、形动词原形+ I didnt go home at eight yesterday. 疑问句:疑问句:Did +主语主语+动词原形动词原形+? Did you go home at eight yesterday? 肯定回答:肯定回答:Yes, 主语主语+ did. Yes, I did.否定回答:否定回答:No, 主语主语+didnt. No, I didnt.特殊疑问句:特殊疑问句: 特殊疑问词特殊疑问词+一般疑问句一般疑问句+? When did you go home yesterday?一、按要求转换句型:1. I was at school yesterday.否定句:一般疑问句:
8、肯定回答:否定回答:划线提问:1. I was at school yesterday.否定句:I wasnt at school yesterday.一般疑问句:Were you at school yesterday?肯定回答:Yes, I was.否定回答:No, I wasnt.划线提问:Where were you yesterday? 2. They were bank clerks ten years ago.否定句:一般疑问句:肯定回答:否定回答:划线提问:2. They were bank clerks ten years ago.否定句:They werent bank c
9、lerks ten years ago.一般疑问句:Were they bank clerks ten years ago?肯定回答:Yes,they were.否定回答:No, they werent.划线提问:What were they ten years ago?What did they do ten years ago?3. He was a police officer in 2003.否定句:一般疑问句:肯定回答:否定回答:划线提问:3. He was a policeman in 2003.否定句:He wasnt a policeman in 2003.一般疑问句:Was
10、he a policeman in 2003?肯定回答:Yes,he was. 否定回答: No, he wasnt.划线提问:What was he in 2003?What did he do in 2003?4.He went to the movies last night.否定句:一般疑问句:肯定回答:否定回答:划线提问:4. He went to the movies last night.否定句:He didnt go to the movies last night.一般疑问句:Did he go to the movies last night?肯定回答: Yes, he d
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