Module1 Unit3 课件-2021-2022学年外研版九年级上册英语

Unit 3 Language in use 时态复习 什么是时态？ 时态是谓语动词通过自身的变化来表示动作发生的时间和所处状态的各种形式。也就是说时态是通过句子谓语动词的某种形式来体现的。 一般现在时 一、意义 表示现在经常反复发生的动作、存在的状态或习惯的动作。 二、时间状语（标志词） always, usually, often, sometimes, every week/day/year/month/..., once a week 等。 三、句型结构 肯定句： 否定句： 一般疑问句： Jack plays basketball every day. Jack doesn’t play basketball every day. Does Jack play basketball every day? Yes, he does. / No, he doesn’t. 肯定句：I am a middle school student. 否定句： 一般疑问句： I am not a middle school student. Are you a middle school student? Yes, I am. / No, I am not. 一般过去时 一、意义 二、时间状语（标志词） 三、句型结构 肯定句： 否定句： 一般疑问句： 表示过去某个时间发生的动作或存在的状态，也可表示过去习惯性、经常性的动作或行为。 two days ago, yesterday, the day before yesterday, last week/ year/ night/ month/..., in 1989等。 I was a worker two years ago. I wasn’t a worker two years ago. Were you a worker two years ago? Yes, I was. / No, I wasn’t. 肯定句：He worked in the hospital last year. 否定句： 一般疑问句： He didn’t work in the hospital last year. Did he work in the hospital last year? Yes, he did.