八年级下册英语Unit5过去进行时.ppt

1、,What were you doing when the rainstorm came?,Unit 5,过去进行时,The Past Continous Tense,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。 通常句子一定会有一个“表示过去某个时间点”的状语。 如：at 7 p.m. last night、 when引导的时间状语从句（when he came/ ）、this morning、the whole morning、 all day yesterday、 from nine to ten last evening、 when、 while,结构: 主语

2、+was/were + doing +其他内容 注:doing 就是现在分词,词形变化与现在进行时相同 I,she,he,it用was You,we,they用were,I was washing the bowls at this time last night. 昨晚这个时候我在洗碗。 He was writing a letter when his brother broke into his room. 当他哥哥进入房间的时候他正在写信。 They were singing at 8 oclock yesterday morning? 昨天早上8点他们在唱歌。,否定式：主语+was/w

3、ere+ not +现在分词 This time yesterday Jack was not watching TV. He was repairing his bike. 昨天这个时候,杰克不是在看电视,而是在修理自行车。 疑问式：was/were + 主语+ 现在分词 Were you playing basketball at four yesterday afternoon? 昨天下午四点你们在打篮球吗?,V-ing 变化规则：1）一般加 ing . 如: play-playing 玩 watch-watching 看以不发音的e 结尾,去e 加ing. 如: take-taking

4、 拿 make-making 做 come-coming 来 live-living 居住小学到初中阶段双写最后一个字母的单词要特殊记忆。如： run-running 跑 cut-cutting 切 swim-swimming 游泳sit-sitting 坐 get-getting 获得 shop-shopping 购物 stop-stopping 停止 win-winning 赢 put-putting 放 forget-forgetting 忘记 begin-beginning 开始,1.I was singing songs yesterday morning. 否定句：_ 一般疑问句：

5、_ 2. They were drawing pictures when the teacher came in. 否定句：_ 一般疑问句：_ 3. She was washing the window when the telephone rang. 否定句：_ 一般疑问句：_,按要求转换下列句型。 1. We were having a PE class at four yesterday afternoon.（改为否定句） We _ _ a PE class at four yesterday afternoon. 2. Kate was reviewing her lessons at

6、 eight last night.（改为一般疑问句，并做肯、否定回答） _ Kate _her lessons at eight last night? _ , she _. _ , she _ .,用所给动词的正确形式填空： Do you know what they _ (do) this time yesterday? They _ (have) supper when we _ (go) into the room. It _ (rain) from 7 to 9 last night. When she _ (arrive) I _ (telephone) Harry. What

7、_ you _ (do) yesterday at 7 pm? When I _ (go) downstairs (楼下), they _ (eat) breakfast. When we arrived, she _ (make) some fresh coffee. I broke a glass, while I _ (cook) the dinner.,一般过去时与过去进行时的区别,1、一般过时往往表示某一动作已经完成，而过去进行时却表示动作在持续或未完成。 比较： She wrote a letter to her friend last night. 她昨晚给朋友写了封信。 (信写

8、完了) She was writing a letter to her friend last night. 她昨晚一直在给朋友写信。 (信不一定写完),2、一般过去时表示只做一次动作，而过去进行时却表示动作反复地进行。 如： She waved to me. 她朝我挥了挥手。 She was waving to me. 她一直朝我挥手。,3、句中有a moment ago之类的短语一般用一般过去时。 4、句中有at this time last Sunday, from 8 to 9 yesterday 之类的状语一般用过去进行时。过去进行时可以用来代替一般过去时，表示更为偶然而非预定的动作

9、： I was talking to Tom the other day 那天我跟汤姆聊天来着。,典型的例子,1) Mary _ a dress when she cut her finger. A. made B. is making C. was making D. makes 答案C. 割伤手指是已发生的事情，应用过去时。同 时，when表时间的同时性，玛丽在做衣服时提供事情发生的背景，因此用过去进行时。,2) As she _ the newspaper, Granny _ asleep. read； was falling B. was reading； fell C. was re

10、ading； was falling D. read；fell 答案B.句中的as = when, while，意为当之时。描述一件事发生的背景时，用过去进行；一个长动作发生的时候，另一个短动作发生。句意为 在她看报纸时，奶奶睡着了。句中的 fell (fall的过去时)，是系动词，后跟形容词，如：fall sick。,3. He ran in the park.（用at this time yesterday改写） He _ _in the park at this time yesterday. 4. They were playing computer games at nine las

11、t night.（对划线部分提问） _ _ they _ at nine last night? 5. I was reading a novel at three yesterday afternoon.（对划线部分提问） _ _ you _ at three yesterday afternoon?,when和while都可表示“当的时候”，引导时间状语从句。你知道两者在过去进行时中的用法有什么不同吗？ 请仔细观察下面的例句，然后补全空格中的内容。,过去进行时中的 when 和 while, I was walking to school when I saw a cat in a tre

12、e. When Sally arrived home, her mother was cleaning the house. 主句的动作是持续性的，而从句动作是 短暂性的，此时用 _ 引导时间状语从 句，主句用 _ 时态，从句用一般 过去时态。,过去进行,when, While I was sleeping in the bedroom, someone knocked at the door. David fell while he was riding his bike. 主句的动作是短暂性的，从句的动作 是持续性的，此时用 _ 引导从 句，主句用 _ 时态，从句 用过去进行时态。,一般过去,while, While Andy was waiting for the bus, he was reading a newspaper. He was cleaning his car while I was cooking. 主句和从句的动作在过去的某时刻或某 段时间同时发生，而且动作都是持续性 的，此时用 _ 引导从句，而且主 句和从句都用 _ 时态。,过去进行,while,将下列汉语句子翻译成英语。,1. 当我正在网上查找信息的时候，门铃响了。 While I was looking for informa