Unit 12 Section A Grammar-4c课件-2024-2025学年人教版英语九年级全册

Unit 12 Life is full of the unexpected. Grammar-4c 过去完成时是以过去某一时间为起点，所以它是一个相对的时态，表示的是“过去的过去”。 不能离开过去的时间而独立存在。 present film started cooked dinner ran out of money left one’s homework at home got to the cinema went home wanted to buy books hand in homework A: What happened to you? B: By the time / When/Before…, ...had done… When I got to school, I realized that I had left my backpack at home. By the time I got back to school, the bell had rung. Before I got to the bus stop, the bus had already left. I was about to go up to my office when I decided to get a coffee first. As I was waiting in line with the other office workers, I heard a loud sound. Grammar Focus 课本P92 熟读并背诵 课本P129 一般现在时 work/works 一般过去时 worked 一般将来时 will work/be going to work 现在进行时 am/is/are working 过去进行时 was/were working 现在完成时 have/has worked 过去完成时 had worked 以 work 为例 过去分词 The Past Perfect Tense 过去完成时 构成： 肯定式：had+ done(动词的过去分词) 否定式：hadn't + done 疑问式：Had+主+ done... ? 回答：Yes, 主 + had. / No, 主 + hadn’t. 缩写式：I’d/ He’d/ We’d/ They’d 回答时主语一定是人称代词（主格） The Past Perfect Tense 过去完成时 1. 过去完成时表示在过去某一时间或动作之前已经发生或完成的动作。它表示动作发生的时间是“过去的过去”。表示过去某一时间可用by,before等构成的短语，也可用when,before等引导的从句，或者通过上下文表示。 P151 By the time________________, the bell__________. she got to school present The bell rang. 8:00 A.M had rung She got to school. 8:15A.M 8:32 A.M 8:30 A.M present When she ______________________, the teacher ________________________ . got into the classroom had started teaching By the time Liu Mei woke up, the concert had been over. present The concert was over. Liu Mei woke up. 2.表示某一动作或状态在过去某时之前已经开始，一直延续到这个过去的时间。这个动作或状态常与for, since等词连用 When I came to Guangzhou , he _____________(be) there for a long time. had been eg. By the end of last year, she had worked in the factory for twenty years. He said he had worked in that factory since 1949. 过去完成时常用于宾语从句中： 主句谓语为过去式（said, asked, told等），从句用过去完成时，此时从句中的动作发生在主句的动作之前 1. After he ______________ (finish) his work he went out. had finished 2. The children ran away after they ___________ (break) the window. had broken 3. I went to Tom’s house but he __________ (go) out. had gone Exercises: 4. Annie told me that his father ____________ ( go ) to Paris and he ____________ ( come ) back in a few days. had gone would come 5. My friend __________ (buy) the car two years ago. He ________________ (buy) it for two years. bought has had He said that he ____________ it for two years. had had 1. We had painted the house before we ____________(move) in. 2. That rich old man____________(make) a will before he dies. 3 .When I ______________(arrive) at the station yesterday, he _____________(leave). 4. We ____________ (learn) about 4000 English words by the end of last term. Homework 5. We were surprised at what she ________already ______.(do) 6. By the time I got to the cinema, the film ____________(be) on for ten minutes. 7. He said he _______already_______(give) the book to the teacher. 4a. Make sentences using by the time or before. 1. Tim went into the bathroom. Mary got up. By the time Mary got up, Tim had already gone into the bathroom. 2. The coffee became cold. I put cream in the coffee. __________________________________ __________________________________ Before I put cream in the coffee, the coffee had become cold. 3. The teacher collected the math homework. I got to school. __________________________________ __________________________________ By the time I got to school, the teacher had collected the math homework. 4. I completed the work for my boss. The workday ended. __________________________________ __________________________________ I had completed the work for my boss before the workday ended. 5. The movie started. I arrived at the cinema. _______________________________________ The movie had started before I arrived at the cinema. 6. My mother finished making the apple pie. I got home from my language course. __________________________________ __________________________________ __________________________________ By the time I got home from my language course, my mother had finished making the apple pie. By the time I arrived at the party, everyone else _____ already __________. When he put the noodles into a bowl, he realized he _____________ to add the green beans. By the time my mother came back from the market, I _____ already __________ of the door to go for my piano lesson. 4.Before she got to the airport, she _____________ about the earthquake. 5.When she ___________ the movie theater, she remembered she had forgotten to feed her dog. 6.Before she got a chance to say goodbye, he _____________ the building. rushed out had shown up had forgotten had had gone into had found out arrived at rush out forget arrive at go into show up find out Fill in the blanks with the correct words in the box. 4b 1. By the time I left for school in the morning, ____________________________. 2. By the end of the school day, __________ __________. 3. By dinner time, I _____________________. Write two true statements and one false statement about your day yesterday. Then ask your classmates to guess the false statement. 4c my father had gone to work six classes had finished my homework I had had $$