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doing when the UFO arrived? B: She was standing in front of the library. Pair work: barber boy man woman young man girl The boy was playing basketball when the UFO arrived. What was he doing when the UFO arrived ? While he was playing basketball the UFO arrived. What was she doing when the UFO arrived ? She was skating when the UFO arrived. While she was skating the UFO arrived. What were they doing when the UFO arrived? They were playing volleyball when the UFO arrived. While they were playing volleyball the UFO arrived. What happened to Ted? What did he see? Listen and number the statements in the order you hear them. ____ The alien visited the Museum of Flight. ____ The alien bought a souvenir. ____ A UFO landed on Center Street. ____ The alien went into a store. ____ An alien got out of the UFO. 1 2 3 4 5 2a boy was walking down the street_____ a UFO landed. girl was shopping_____ she saw the alien got out. the alien was buying a souvenir, the girl called the police. the alien was visiting the museum, the boy called the TV station. when when While While Listen again. Complete the following sentences with “when” and “while” 2b 比較 “ when” and “while” 2. When the UFO landed, the boy was walking down the street. While the boy was walking down the street, the UFO landed 1. When the alien got out, the girl was shopping. While the girl was shopping, the alien got out. = = talk with a policeman ride a bike give a report take photos A: What was the girl doing when the UFO took off? B: While the girl was…. C: When the UFO took off, the man was… Group work 過去進行時 構(gòu)成 用法 “was / were + ving” 表示在過去某一時刻或 某一 段時間內(nèi)正在進行或 發(fā)生的動作。 時間狀語 at that time a