Unit 1 The mass media Grammar & Usage 过去完成时 课件-2024-2025学年高中英语牛津译林版（2020）选择性必修第二册

1 2 3 Unit 1 Grammar and usage Past perect tense 1 2 3 4 is used to talk about an action which happened before another action in the past The party started. Mum baked a cake. now Mum had baked a cake before the party started. The party started. Mum baked a cake. now is used to talk about an action which happened before a stated time in the past Lenny had done his homework by seven o’clock. 7 o’clock Lenny had done his homework . now 5 o’clock had + past participle regular verb + ed irregular 3rd column 1 2 3 4 Decide which action in the past took place 1st and which took place 2nd. I felt better. I took an aspirin. when Decide which action in the past took place 1st and which took place 2nd. I felt better. I took an aspirin. when 2nd 1st When I had taken an aspirin, I felt better. Decide which action in the past took place 1st and which took place 2nd. We called a taxi. We locked the door. before Decide which action in the past took place 1st and which took place 2nd. We called a taxi. We locked the door. before 1st 2nd Before we locked the door, we had called a taxi. Decide which action in the past took place 1st and which took place 2nd. It stopped raining. We took our dog for a walk. as soon as Decide which action in the past took place 1st and which took place 2nd. It stopped raining. We took our dog for a walk. as soon as 1st 2nd As soon as it had stopped raining, we took our dog for a walk. Decide which action in the past took place 1st and which took place 2nd. We reached the railway station. The train left. by the time Decide which action in the past took place 1st and which took place 2nd. We reached the railway station. The train left. by the time 2nd 1st By the time we reached the railway station, the train had left. Decide which action in the past took place 1st and which took place 2nd. He spoke to a policeman. He saw an accident. after Decide which action in the past took place 1st and which took place 2nd. He spoke to a policeman. He saw an accident. after 2nd 1st After he had seen an accident, he spoke to a policeman. That’s all for today... Thanks for your nice attention.... $$