【单元整体教学】Unit 12语法（课件）2024-2025新人教九下英语

(共10张PPT)
Unit 12
Life is full of the unexpected.
Grammar
Today I had an unexpected day.
Firstly,When I woke up, the alarm clock had gone off. Before I got up, my brother had already gotten in the shower. So I had to take a shower quickly. But Then, By the time I went outside ,the bus had already left.So I ran all the way to school.And when I got to school, I realized I had left my backpack at home.Then I had to home to get my backpack. When I got home, I realized I had left keys in the backpack.So I ran back to school without my keys ormy backpack.By the time I went back to school, the bell had rung.And by the time I walked into class, the teacher had started teaching already.
What a terrible day!
Let’s review
Read Mary’s dairy
Let’s observe.
Find the rules
Today I had an unexpected day.
Firstly,When I woke up, the alarm clock had gone off. Before I got up, my brother had already gotten in the shower. So I had to take a shower quickly. But Then, By the time I went outside ,the bus had already left.So I ran all the way to school.And when I got to school, I realized I had left my backpack at home.Then I had to home to get my backpack. When I got home, I realized I had left keys in the backpack.So I ran back to school without my keys ormy backpack.By the time I went back to school, the bell had rung.And by the time I walked into class, the teacher had started teaching already.
What a terrible day!
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.
(3) 标志词：
表示过去某一时间之前发生的动作，用by the time, before, when...+过去时间；by the end of +过去时间， by +过去时间
(表示过去某一时刻开始，一直延续到过去另一时间的动作或状态常与already, since+时间状语，for + 时间状语连用。)
Let’s learn
过去完成时
(4)句型结构：
肯定句：had + 动词的过去分词
I had finished my homework by nine o’clock last night.
否定句：hadn't + 动词的过去分词
I hadn’t finished my homework by nine o’clock last night.
一般疑问句：Had … + 动词的过去分词
Had you finished your homework by nine o’clock last night
回答: Yes, 主 + had.
No, 主 + had not.
Yes,I had.
No, I hadn’t.
特殊疑问句：特殊疑问词或词组+一般疑问句
What had you finished by nine o’clock last night
Let’s learn
By last year, I _________ (buy) this book for eight years.
Let’s learn
过去完成时的具体用法
过去完成时动词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时。
他说他以前见过你。
He said that he _________ (see) you before.
had seen
2.过去完成时词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。
had had
到去年为止，我已经买了这本书8年了。
3.过去完成时和 already, just, ever, yet等连用表示过去的过去。
她说她仍还没去过长城。
She said that she _______________(not go to) the Great Wall yet.
hadn’t been to
Let’s tell
一般过去时、现在完成时与过去完成时
一般过去时表示在过去某时发生的动作或存在的状态。 We started to learn English 5 years ago.
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。 We have learned English for 5 years.
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”。 We had learned English for 4 years by last year.
概念: __________________________________
过去某一时刻或动作之前已经发生或完成的动作。
构成：_____+___________
had
过去分词
标志词: _________________________________________
by,by the time(of),when,before,by the end of ,already,since,for
句型结构：肯定句：__________________________________
否定句：___________________________________
疑问句：____________________________________
回答：_______________________________________
特殊疑问句：________________________________
用法：_____________________________________________
___________________________________________________
过去某一时刻或某一事件前完成的动作或状态。
过去某一时刻或某一事件前已经开始，一直延续到这一过去时间
had + 动词的过去分词
hadn't + 动词的过去分词
Had … + 动词的过去分词
Yes, 主 + had.
No, 主 + had not.
特殊疑问词或词组+一般疑问句
Let’s sum up.
4. I completed the work for my boss. The workday ended.
_______________________________________________
3. The teacher collected math homework. I got to school.
_____________________________________________
2. The coffee became cold. I got to school.
________________________________________
Let’s practice.
1. Tim went into the bathroom. Mary got up.
By the time Mary got up, Tim had gone into the bathroom.
The coffee had become cold before I got to school.
By the time I got to school, the teacher had collected math homework.
I had completed the work for my boss before 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.
__________________________________________________
By the time I arrived at the cinema, the movie had started.
My mother had finished making the apple pie before I got home from my language course.
策略：对比两个动作，哪个发生在过去的过去，哪个就用过去完成时。
Let’s practice.
rush out forget arrive at go into show up find out
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.
3. By the time my mother came back from the market, I ________ already __________ of the door to go to 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
shown up
had forgotten
had
rushed out
arrived at
had gone into
had found out