Unit10 Guess（课件）剑桥少儿英语三级下册

Unit 10 Guess: What was happening at about 1:30 yesterday afternoon? 概念：过去进行时表示在过去某一时刻或某一段时间内进行或发生的动作。（过去某时正在进行的动作，不强调是否完成 。） 过去进行时 构成：was/were + V-ing 标志：常与表示过去的时间状语连用，如：last night, last Saturday等； 或者与when, while, as引导的过去时间状语连用。 过去进行时可以表示在过去某个时间点发生的事情。时间点可以用介词短语、副词或从句来表示。 例：What was she doing at nine o’clock yesterday? 昨天晚上九点她在做什么？ (介词短语表示时间点) She was reading. Add – ing to the following verbs. 1、ask — look — carry — asking looking carrying 2. close — take — ride — closing taking riding 3.swim — get — sit — swimming getting sitting 4. put — begin — travel— putting beginning travelling 句型转换 1. 陈述句结构：主语+was/were + 现在分词 例： We were having supper when the phone rang. 2. 否定句结构：主语+was/were not +现在分词 例： This time yesterday Jack was not watching TV. He was repairing his bike. 3. 疑问句结构：was/were + 主语+ 现在分词 例： Were you playing basketball at four yesterday afternoon? 时态比较 现在进行时 过去进行时 定义 构成 标志 举例 表示在过去某一时刻或某一段时间内进行或发生的动作。 表示说话时正在发生或进行的动作。 is/am/are+V-ing was/were+V-ing now，at present，at the moment，right now等， 两个动词标志：look，listen last night, at that time, this time yesterday, at 7:00 yesterday evening, when, while等。 1.Look! The boy is flying the kite. 1.He was watching TV at that time. 2.What did you do at 7:00 yesterday evening? 7 时态比较 过去进行时 一般过去时 定义 构成 区别与 联系 举例 一般过去时表示在过去时间完成的动作。 过去进行时表示在过去某一特定的时间点或时间段正在进行的动作。 用动词的过去式表示 was/were+V-ing 进行时强调过程，不一定完成。 过去时强调事件，一定完成 。 I was writing a letter last night. 昨晚我在写一封信。(可能没写完) I wrote some letters last night. 我昨晚写了一些信。(已经写完) 过去进行时与一般过去时连用时，表示某一过去动作发生的时候，另一动作正在进行。He played when I was studying. 8 They are playing football . They were playing football at 1:30 yesterday afternoon. 他们正在踢足球。 昨天下午1:30他们正在踢足球。 They played football yesterday. 昨天下午他们踢了足球。 9 Practice She_______________( dance) at 3:00p.m yesterday. They____________ (work) yesterday afternoon. He_____________ (swim) at 2:00p.m yesterday. Look! He ______________(watch ) games. It’s rainy, but eve