Unit12 Life is full of the unexpected SectionA Grammar Focus-4c 课件 2024-2025学年人教版九年级英语全册

Section A Grammar-4c Unit 12 Life is full of the unexpected. Presentation Learning aims 1.学习本课新词汇:cream，workday，show up, bean, market, by the end of 2. 掌握句型： By the time I arrived at the party, everyone else had already shown up. When she arrived at the movie theater, she remembered she had forgotten to feed her dog. 3. 通过翻译Grammar focus 中的句子，完成句子，探究过去完成时的概念，用法和结构。 4.通过控制性练习(4a)和自由练习(4b，4c)，能正确使用过去完成时。 Presentation Revision Pre-grammar Look and say. What happened to her? When she got to school, she realized that she had left her backpack at home. By the time she got up, her brother had already gotten in the shower. By the time she got outside, the bus had already left. 9 By the time she walked into class, the teacher had started teaching already. By the time I got back to school, the bell had rung. 一般过去式 从句 主句 过去完成时 动作发生在后 动作发生在前 在过去某个时间或某个动作之前发生的动作或存在的状态，它表示动作发生的时间是“过去的过去”。 定义 (1)由时间状语来判定 ① by+过去的时间点 例：到昨天9点钟时，她已经读完了这本书。 She had finished reading the book by 9 o’clock yesterday. 判断依据 5 Let’s enjoy a video and learn more. 6 ② by the end of+过去的时间点 例：到上个月月底，我们已经完成了所有工作。 We had completed all the work by the end of last month. Grammar 过去完成时 8 翻译： 她说她之前看过了这部电影。 ___________________________________________ 当我到达车站的时候，火车已经走了。 ____________________________________________ (2)由“过去的过去”来判定 She said that she had seen the film before. When I got to the station, the train had already left. The family ate food. Daddy Pig slept. Mummy Pig put the dishes away. Peppa fed the ducks. Daddy Pig got rid of the bee. 1. What did they do on that day? 2. Put them in the correct order. Let’s think and say. 10 Let’s explore and learn. 1. When did Daddy Pig sleep? 2. When did he eat delicious food? 3. Which happened earlier? In the past. In the past. He ate delicious food. Daddy Pig had eaten delicious food before he slept. past now past of the past 11 Grammar 过去完成时 构 成 had + 动词的过去分词 概 念 表示在过去的某一时间或动作之前已经发生或完成了的动作。即：过去的过去。 时 间 表示动作发生在过去的过去 12 1. by+过去的时间点 He had finished reading the book by 8 o’clock yesterday. 2.by the end of+过去的时间点 By the end of last year, I had stayed in Xi’an for seven years. 3. before + 过去的时间点 The movie had started before I arrived at the cinema. 4. when + 过去的时间点 When Jack arrived, Mary had been away for an hour. 时间状语 过去完成时 Grammar Focus 过去完成时是相对的时态，可通过分析语境来确定。 过去完成时与一般过去时的区别 一般过去时表示过去某时间发生的动作或存在的状态，而过去完成时则表示过去某一时间以前（即过去的过去）发生的动作或存在的状态。 e.g. We have learned 1,000 English words so far. We had learned 1,000 English words by then. by last year now began to learn for 4 years 在told, said, knew, heard, thought等动词引导的宾语从句中，一般用过去完成时。 例如：1. 他说他以前见过你。 He said that he ____________(see) you before. 2. Tom说他借了这本书两周了。 Tom said he _________the book for 2 weeks. 3. 他告诉我说他们队已经赢了。 He told me that his team _______already _______ (win). 4. 她说她仍没去过长城。 She said that she _______________( be to) the Great Wall yet. had seen had kept had won hadn’t been to 15 翻译： 她说她之前看过了这部电影。 ___________________________________________ 当我到达车站的时候，火车已经走了。 ____________________________________________ 由“过去的过去”来判定 She said that she had seen the film before. When I got to the station, the train had already left. Let’s observe. 过去完成时肯定句结构 had + 过去分词 Daddy Pig had eaten delicious food before he slept. Daddy Pig slept. 17 过去完成时一般与before, after, when，by the time, till/ until 等引导的时间从句连用，从句用一般过去时。 例如：1. 她到家之前她的孩子已经睡着了。 When she got home her children ____________(sleep). 2. 在他们到达之前电影已经开始了。 Before they arrived here the film ______ already _______ (start). 3. 她出去之前公共汽车就已经离开了。 By the time she got outside, the bus__________________. had slept had started had already left 18 过去完成时与一般过去时的区别 一般过去时表示过去某时间发生的动作或存在的状态，而过去完成时则表示过去某一时间以前（即过去的过去）发生的动作或存在的状态。 e.g. We have learned 1,000 English words so far. We had learned 1,000 English words by then. by last year now began to learn for 4 years Think of ways to finish the answers. 1. A: Why didn’t you hand in your science homework? B: Before I could start working on it, _________________________ ——————————————————————————. 2. A: Why didn’t you take a shower this morning? B: By the time I got up, ___________________________________ ——————————————————————————. 3. A: Why did you have to walk home from school? B: By the time I left my school, _____________________________. my baby brother started crying and I had to look after him because my mother was sick my sister had already gone into the bathroom and the bus was honking (鸣喇叭) for me to hurry up the school bus had already left 1.时间状语不同 过去完成时：强调“过去的过去”； 一般过去时：强调过去某一特定的时间。 They had arrived at the station by ten yesterday. 他们昨天十点前就到车站了。 They arrived at the station at ten yesterday. 他们昨天十点到了车站。 Differences 4c Exercise 1. Tim went into the bathroom. Mary got up. ____________________________________________________________________ 2. The coffee became cold. I put cream in the coffee. ____________________________________________________________________ 3.The teacher collected the math homework. I got to school. ____________________________________________________________________ 4.I completed the work for my boss. The workday ended. ____________________________________________________________________ 5.The movie started. I arrived at the cinema. ____________________________________________________________________ 6.My mother finished making the apple pie. I got home from my language course. _____________________________________________________________________ Make sentences using by the time or before. By the time Mary got up, Tim had already gone into the bathroom. Before I put cream in the coffee, the coffee had become cold. By the time I got to school, the teacher had collected the math homework. By the time the workday ended, I had completed the work for my boss. By the time I arrived at the cinema, the movie had started. By the time I got home from my language course, my mother had finished making the apple pie. 22 宾语从句，主句一般过去时，从句动作发生在主句之前，用过去完成时。 When I got to school, I realized that I had left my backpack at home. by the time/ before + 一般过去时的时间状语从句，主句动作发生在从句之前，主句用过去完成时 By the time I got back to school, the bell had rung. Before I got to the bus stop, the bus had already left. 2.在过去的时间中，哪个先发生，哪个后发生。 在没有明确的过去时间状语作标志时，谓语动词动作发生的时间先后须依据上下文来判断：先发生的用过去完成时，后发生的则用一般过去时。 She was very happy. Her whole family were pleased with her, too. She had just won the first in the composition competition. Differences when引导的时间状语从句用一般过去时，主句表示decided的时候马上要做的事情，发生在decided这个动作之后，用过去将来时。 I was about to go up to my office when I decided to get a coffee first. As 引导的时间状语从句用过去进行时，主句表示was waiting那个时间发生的动作，表示过去某个时间发生的动作，主句用一般过去时 As I was waiting in line with the other office workers, I heard a loud sound. 一、用所给单词的适当形式填空 1. I had ______________ (read) three English novels by the end of last week. 2. He _________________ (not ride) a horse before that day. 3.Nancy ___________________ (wash) the clothes by the time her mother ______________ (come) home. 课堂小测 read hadn't ridden had washed came 4. Had you ______________(phone) Annie before you ______________ (go) to see her in London? 5.The Smiths talked about the market where they __________________ (buy) beans and cream for three times. phoned went had bought 6. Tim had rushed out of the door before I could stop him. (就画线部分提问) ______________ ______________ Tim ______________ before you could stop him？ What had done Lavf56.40.101 Tencent APD MTS $$