第一课时 SA1a-1c(课件).ppt

1、,What were you doing when the rainstorm came?,Unit 3,SA1a-1c,rainstorm,暴风雨,自我保护,When the rainstorm came , what should you do?,You should stay at home. You should close the window . You shouldnt call. You shouldnt surf the internet. You shouldnt stand under the tree.,过去进行时,含义： 表示过去某个时刻 正在进行的动作。 结构： w

2、as/were + doing 例句： I was having an English class at this time yesterday.,现在进行时,含义： 表示现在 正在进行的动作。 结构： is/am/are + doing 例句： I am having an English class.,1.意义：,2.构成：,3.标志词：,表示在过去某一时刻正在进行的动作。,was/were +doing,否定式：,was/were not +doing,疑问式：,Was/Were doing?,at this/that time yesterday at 9:00 last night

3、was/were doing when.did.,过去进行时中的when 和while,When 和while都可表示“当时候”，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。, I was walking to school when I saw a cat in a tree. When Sally arrived home, her mother was cleaning the house. 主句的动作时持续性的，而从句的动作时短暂性的，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。,when,过去进行, Wh

4、ile I was sleeping in the bedroom, someone knocked at the door. Davide 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 引导时间状语从句，主句用 时态，从句用过去进行时态。,while,一般过去, While Andy was waiting for the bus,he was reading a newspaper. He was cleaning his car, while I was coking. 主句和从句的动作在过去的某个时刻或某段时间

5、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。,while,过去进行,比较 “when” and “while”,Target Language:,when “当.时候” 后面跟的动作不延续, 常跟一般过去时 When the UFO took off, the boy was taking photos,while “当.时候” 后面跟的动作延续, 常跟过去进行时While the boy was taking photos, the UFO took off.,Exercises,Fill with “While” or “When”,1._ May was

6、talking on the phone, her sister walked in. 2._ Rita bought her new dog, it was wearing a little coat. 3._ I saw Carlos, he was wearing a green shirt. 4._ I was dancing, he was singing loudly. 5. _ Linda finally saw Davy , he was jumping with a dog . 6. I was cleaning my room _ the fire broke out .,

7、While,When,When,While,When,When,Fill in the blanks with “while” and “when”.,1. Tom was eating supper, it began to rain outside.,2. What were you doing, Mr. Zhou came in?,3. Peter was sleeping, a thief broke into his house.,4. She left her hometown she was five.,when,when,While,While,一 用所给动词的适当形式填空 1

8、What _ you _ (do) at noon yesterday? 2)I _(watch) TV when my mother_ (come) in. 3) He _(do) his lessons at ten yesterday morning.,were,doing,was watching,came,was doing,4) The children _(play) football at four yesterday afternoon. 5) The baby _ (sleep) when the mother came back.,were playing,was sleeping,2) They _ (在扫地）after school yesterday. 3）The boys and girls_(在唱歌） last night. 4)You _（在打篮球）yesterday afternoon, werent you? 5) What _To_(在做什么）at noon yesterday?,were sweeping the floor,were singing,were playing