八年级英语上册语法知识点:一般过去时一般过去时表示在过去某个时间所发生的动作或所处的状态(与现在无关)。常与yesterday, last week, in 1989, just now, a moment ago, the other day等过去具体时间状语连用。He was here just now.他刚才还在这里。What did you do yesterday?你昨天做了什么事?一般过去时基本结构1. 肯定句形式:主语+动词过去式+其他I was an English teacher one year ago.一年前我是一名英语老师。I bought a yellow dress yesterday afternoon.昨天下午我买了一条黄裙子。2. 否定句形式:①was/were+not; ②在行为动词前加didn't,同时还原行为动词I wasn't an English teacher one year ago.一年前我不是一名英语老师。I didn't buy a yellow dress yesterday afternoon.昨天下午我没买一条黄裙子。3. 一般疑问句:①was/were提到句首; ②Did+主语+动词原形+其他?Were you an English teacher one year ago?一年前你是一名英语老师吗?Did you buy a yellow dress yesterday afternoon?昨天下午你买了一条黄裙子吗?4. 特殊疑问句:特殊疑问词+一般疑问句What were you one year ago?一年前你是做什么的?