Unit 12 Section A Grammar Focus-4c-【七彩课堂】2025-2026学年九年级英语下册同步课件（人教版）

该初中英语课件聚焦人教版九年级下册Unit 12“过去完成时”，系统讲解其用法、构成及标志词。课堂导入通过“Mary的早晨”情境（By the time she got up, her brother had already gotten in the bathroom），连接已学的一般过去时，搭建从已知到未知的学习支架，帮助学生理解“过去的过去”概念。 其亮点在于通过对比一般过去时、现在完成时与过去完成时，结合时间轴可视化呈现，并以“先发生的用过完，后发生的用过去”口诀简化记忆，提升思维品质。练习涵盖填空、翻译及真实情境造句（如4c编写真假句子），强化语言能力，中考链接贴近考点，助力学生巩固语法，教师可借分层设计提升教学效率。

Section A Grammar Focus- 4c Objectives To learn the words and phrases: cream, workday, show up, bean, market, by the end of... To learn the usage of the past perfect tense. UNIT 12 SECTION A Warming up Talk about Mary’s morning. By the time she got up, her brother had already gotten in the bathroom. UNIT 12 SECTION A Grammar Focus 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 other office workers, I heard a loud sound. UNIT 12 SECTION A 过去完成时 (1)用法： 用来描述在过去某一时间或动作之前已经发生或完成了的动作。（过去的过去） (2) 构成： 由“助动词had(用于各种人称和数) + 过去分词”构成.否定式：had not + 过去分词 缩写形式：hadn’t Language points UNIT 12 SECTION A (3) 标志词： 表示过去某一时间发生的动作用by the time, before, when引导时间状语从句；by the end of 接短语 表示过去的过去发生的动作常与already, since+点时间，for + 一段时间连用。 (4) 口诀： 有两个动作发生在过去，一个先发生， 一个后发生，先发生的用过完，后发生的用过去。 UNIT 12 SECTION A 过去完成时表示过去某一时间或某一动作之前完成的动作或状态。强调过去某一动作发生在另一动作之前。 他说他以前见过你。 He said that he _________ (see) you before. had seen 过去完成时的具体用法 UNIT 12 SECTION A 2.过去完成时可以表示过去某一时刻之前发 生的动作或呈现的状态，这一动作一直持续 或将继续下去。 到六点钟为止，他们已经工作了八小时了。 By six o’clock they ____________ (work)for eight hours. 我到广州时，他在那里很长时间了。 When I came to GZ , he _____________(be) there for a long time. had worked had been UNIT 12 SECTION A 3.过去完成时和 already, just, ever, yet等 连用表示过去的过去。 他告诉我说他们队已经赢了。 He told me that his team _________ already ___________ (win). 她说她还没去过长城。 She said that she _______________(not go to) the Great Wall yet. had won hadn’t been to UNIT 12 SECTION A 1.一般过去时表示在过去某时发生的动作或 存在的状态。 例：We started to learn English 5 years ago. 我们五年前开始学英语。 一般过去时、现在完成时与过去完成时 5 years ago now UNIT 12 SECTION A 2. 现在完成时表示的动作发生在过去，但侧重对现 在产生的结果或造成的影响，与现在有关。其结 构为：“助动词 have（has）+过去分词” 。 例：We have learned English for 5 years. 我们已经学了五年的英语了。 5 years ago have learned now UNIT 12 SECTION A 3. 过去完成时表示在过去某个时间或动作之前 已经发生或完成了的动作或存在的状态，即 “过去的过去（ past-in-the-past ）”。 例：We had learned English for 4 years by last year. 到去年为止，我们已经学英语四年了。　　　　　 past in the past past now UNIT 12 SECTION A 总 结 1. 过去完成时的构成：_____+___________ 2. 过去完成时表示： __________________________________ __________________________________ 3. 过去完成时常于___________________________ 等引导的时间状语连用。 had 过去分词 when, before, by the time 过去某一时刻或动作之前已经发生或完成的动作。 UNIT 12 SECTION A  用所给词的适当形式填空。  1. When I got there, the bus _________ (go).  2. By the time I got to class,  the teacher ___________ (start) the class.   had gone had started UNIT 12 SECTION A 3. We _____________ (learn) over 1,000 words by the end of last term. 4. I ___________ (clean) the room before he  arrived here.  had learnt had cleaned UNIT 12 SECTION A 1.当我到达学校的时候，我才意识到我把书包忘 在家里了。 _______ I got to school, I realized that I ______ ______ my backpack at home. 2.到我返回学校的时候，铃声已经响过了。 _____ _____ _____ I got back to school, the bell ______ _______. When had left By the time had rung 根据汉语提示完成句子。 UNIT 12 SECTION A 3.我到达公共汽车站之前， 汽车已经离开了。 Before I _____ _____ the bus stop, the bus ______ _______ _______. 4.我决定先买一杯咖啡，然后再去办公室。 I ______ ______ ______ go up to my office when I decided to get a coffee first. got to had already left was about to UNIT 12 SECTION A 1. Tim went into the bathroom. Mary got up. ____________________________________ ____________________________________ 2. The coffee became cold. I put cream (n. 奶油) in the coffee.` __________________________________ __________________________________ Before I put cream in the coffee, the coffee had become cold. 4a Make sentences using by the time or before. By the time Mary got up,Tim had already gone into the bathroom. UNIT 12 SECTION A 3. The teacher collected the math homework. I got to school. ______________________________________ _______________________________________ 4. I completed the work for my boss. The workday (n. 工作日) ended. _______________________________________ _______________________________________ By the time I got to school, the teacher had collected the math homework. I had completed the work for my boss before the workday ended. UNIT 12 SECTION A 5. The movie started. I arrived at the cinema. __________________________________ __________________________________ 6. My mother finished making the apple pie. I got home from my language course. ______________________________________ ______________________________________ ______________________________________ The movie had started before I arrived at the cinema. By the time I got home from my language course, my mother had finished making the apple pie. UNIT 12 SECTION A 1. By the time I arrived at the party, everyone else _____ already ____________. 2. When he put the noodles into a bowl, he realized he ______________ to add the green beans (n. 豆). rush out, forget, arrive at, go into, show up, find out shown up had had forgotten 4b Fill in the blanks with the correct forms of the words in the box. UNIT 12 SECTION A 3. 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. had rushed out arrived at had gone into had found out UNIT 12 SECTION A 1. By the time I left for school in the morning, __________________________________ __________________________________ __________________________________ I had already had breakfast. I had already had supper. I had already had my hair cut. Write two true statements and one false statement about your day yesterday. Then ask your classmates to guess the false statement. 4c UNIT 12 SECTION A 2. By the end of the school day, __________________________________ __________________________________ __________________________________ 3. By dinner time, I_________________________________ I_________________________________ I_________________________________ I have got a present from Tom. I had had these articles read. I had finished my homework. had had too many apples. had eaten plenty of meat. have had all the housework finished. UNIT 12 SECTION A 1. When Tim get back home, he started to realize that the thief ___________ (come) to his house. 2. By the time I received the letter, I ________________ (tell) the content of it. had come had been told Exercises Ⅰ.用括号里所给词的适当形式填空。 UNIT 12 SECTION A Ⅱ. 翻译下列句子。 1.当他到达学校的时候，老师已经开始上课了。 2.当我出来的时候，我爸爸已经离开家了。 By the time he got to school, the teacher had already started teaching. When I got outside, my father had left home. UNIT 12 SECTION A 3.在我拿书包以前我把门锁上了。 4.在她做完作业之前我妈妈已经回来了。 Before I got my schoolbag, I had locked the door. Before she finished her homework, my mother had already been back. UNIT 12 SECTION A market burn  above  miss unexpected pie  1. I got up late and _________ the early bus this  morning. 2. The mountain is 1, 000 meters ______ the sea level.   Ⅲ. 用方框中词的适当形式完成下面的句子。 missed above UNIT 12 SECTION A 3. My daughter went with me to the ________ and bought clothes.   4. His wife made some apple _____ for dinner. 5. He became worried when he heard of the  ______________ news.  market burn  above  miss  unexpected pie  market pies unexpected UNIT 12 SECTION A 1. —Did you see Lily in the meeting room? — No. When I got there, she ______ another meeting. A. had left for B. had left to C. was leaving for D. was leaving to Ⅳ.单项选择。 A UNIT 12 SECTION A 2. What did you do ______ April Fool’s Day?    A. on  B. at    C. in   D. with   3. ______ last month, I had learned twenty sentences. A. To the end B. At the end of C. In the end D. By the end of A D UNIT 12 SECTION A 4. Johnny announced that he would never _____  before finding a satisfying job.   A. marry    B. married     C. get married   D. get marry  5. — Why was Miss Lee angry this morning?   — Because Tom didn’t _____ his homework.     A. hand out    B. hand in    C. give away    D. give out  C B UNIT 12 SECTION A 中考链接 While the lights_______to red, a car suddenly appeared round the corner. A. change B. have changed C. were changing D. will change 句意为“当交通灯正在变红的时候，一辆车突然在拐角出现。”while当……的时候，引导的从句要用过去进行时。 UNIT 12 SECTION A Review Grammar Focus. Try to make sentences with “before”, “by the time”and “when”, and make use of the past perfect tense. Homework UNIT 12 SECTION A 伴你成长 UNIT 12 SECTION A 感谢您的观看 $