Unit 12 Life is full of the unexpected Section A Grammar-4c课件(共21张PPT) 人教版英语九年级全册

(共21张PPT)
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