Unit12 SectionA Grammar Focus~4c 课件+内嵌视频【新目标九年级Unit 12 Life is full of the unexpected】

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Unit 12
Life is full of the unexpected.
Section B 1a~1e
Learning Goals
Warming Up
Grammar
Summary
Exercises
1
1
2
3
4
5
通过本课的学习，学生能够：
①了解过去完成时态（初中课标未作要求），复习一般过去时态。
②运用各时态描述自己生活中发生的事情。
Learning Goals
Warming Up
Let’s first enjoy a video.
What is the song about
What tense will we use when telling a story happened long ago
It tells a story about a princess asleep.
Past tense.
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.
默读 “语法聚焦” 表格中的例句，找出例句中运用的不同时态。
Presentation
一般过去时
过去完成时
过去将来时
过去进行时
Discussion
这些句子，为什么分别使用一般过去时和过去完成时？
在使用不同时态时，这些句子的动作有什么先后顺序？
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.
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.
过去完成时由“助动词had (用于各种人称和数) + 过去分词”构成，表示某动作或状态在过去某一时间或动作之前已经发生或完成，它表示动作发生的时间是“过去的过去”。
过去完成时
过去的过去
过去某时
现在
将来
（先发生）
（后发生）
过去完成时
从过去之前的某个时间点到过去的某个时间点为止
1. 过去完成时的句式结构
(1) 肯定句：
(2) 否定句：
(3) 一般疑问句：
肯定回答：
否定回答：
过去完成时
主语 + had + 过去分词 + 其他.
主语 + hadn’t + 过去分词 + 其他.
Had+ 主语 + 过去分词 + 其他
Yes, 主语 + had.
No, 主语 + hadn’t.
表示一个动作或状态在过去某一时间动作之前已经发生或完成，常与by、 before等构成的时间短语连用。
2. 过去完成时的用法
He told me that he had met her the night before.
Before I arrived at the airport, the plane had already taken off.
(2)常用在said、told、knew、heard、realized等后面的宾语从句中。
在我到达机场前，飞机已经起飞了。
他告诉我他在前一天晚上已经见过她了。
(4) 过去完成时是一个相对的时态，只有和过去的某个时间或动作相比较时才会用到，因此可通过分析语境来确定时态。
(3) 在含有when、 before等引导的时间状语从句的复合句中， 如果从句
的时态为一般过去式，主句常用过去完成时。
Most of the guests had left by the time he arrived at the party.
他到达聚会的时候，大部分的客人已经走了。
Helen had left her keys in the office so she had to wait until her husband came home.
海伦把钥匙忘到办公室里了，因此她不得不等她丈夫回来。
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.
__________________________________________________
3. The teacher collected the math homework. I got to school.
____________________________________________________________
By the time I put cream in the coffee, it had become cold.
Before I got to school, the teacher had collected the math homework.
Practice
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.
__________________________________________________________________________________________________
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.
Before the workday ended, I had completed the work for my boss.
4b.Fill in the blanks with the correct forms of the words in the box.
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.
had
showed up
had forgotten
had
rushed out
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 found out
arrived at
had gotten into
rush out　forget　arrive at go into　show up find out
4c.Write two true statements and one false statement about your day yesterday. Then ask your classmates to guess the false statement.
1. By the time I left for school in the morning,
________________________________________________
2. By the end of the school day,
_________________________________________________
3. By dinner time, I ________________________________
I realized that I had left my keys at home.
I had already finished my homework.
had made the egg soup.
Production
一、单项选择。
1. Tom was disappointed that most of the guests ______ when he ______ at the party.
A. left, had arrived B. left, arrived
C. had left, had arrived D. had left, arrived
2. We ______ four thousand new words by the end of last year.
A. had learned B. have learned
C. learned D. will have learned
D
A
Exercises
3. The pen I ______ I ______ is on my desk.
A. think, lost B. thought, had lost
C. think, had lost D. thought, have lost
4. —Did you see Mr. Smith when you were in France
—No, when I _____ France, he ______ to China.
A. had arrived, had gone B. arrived to, went
C. got to, had gone D. had got to, would go
5. Catherine ______ the letter before her mother came into her bedroom.
A. had written B. was written C. has written D. is writing
B
C
A
6. —I have bought you the books you want．　
—Oh, good, I_______afraid you had forgotten．　
A. was B. am C. had been D. have been
7. —Why didn’t Tom attend the meeting yesterday
—He__________Beijing．　
A. has gone to 　　　 B. had gone to 　
C. went to 　　　 D. had been to
8. The bus had gone when I _______ at the bus stop．　
A. have arrived 　　 B. arrived 　　C. had arrived 　　D. am arriving　
A
B
B
9. The police found that the house ______and a lot of things_____.
A. has broken into, has been stolen　
B. had been broken into, had been stolen
C. has been broken into, stolen　　　
D. had been broken into, stolen
10. We _________the work by six yesterday evening.
A. finished　 　　　B. would finish　　
C. had finished　 　D. had been finished
B
C
二、翻译下列句子。
1.到了六点钟为止，他们已经工作了八小时了。
______________________________________________________
2. 我到广州时，他在那里很长时间了。
______________________________________________________
3.他告诉我说他的队伍已经赢了。
______________________________________________________
4.她说她仍没去过长城。
_______________________________________________________
By six o’clock they had worked for eight hours.
When I came to GuangZhou, he had been there for a long time.
He told me that his team had already won.
She said that she hadn’t gone to the Great Wall yet.
Grammar: 过去完成时
①用法：过去的过去
②结构：助动词had (用于各种人称和数) + 过去分词
Summary
谢谢
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