人教版2025九年级英语Unit 12 Life is full of the unexpected Section A (2d&Grammar Focus-4c) 课件(共36张PPT，含内嵌视频)

(共36张PPT)
Unit 12
Section A (2d&Grammar Focus-4c)
Life is full of the unexpected.
Learning Objectives
通过本课时学习，我们能够：
1
2
3
理清过去完成时的涵义、句式类型及基本用法，理解具体在哪些场景中需要应用过去完成时；能够认识其与一般过去时、现在完成时、过去完成时的区别。（学习理解）
归纳总结过去完成时的规则及用法，并应用其完成对应练习；能够在情境中综合应用多种时态，提升自己的表达能力，使得故事的描述更加生动。（应用实践）
写两句关于你昨天一天的真实陈述和一个虚假陈述，然后让你的同学猜出哪句是假的。（迁移创新）
Mr. Zhen was dead.
There are three criminal suspects(嫌疑人).
Do you know who killed him Let’s find the murder together.
three criminal suspects(嫌疑人)
7:10
7:00 a.m.
Mr. He reaches
his home.
Mr. Zhen
leaves home.
7:40
7:30
Mr. Zhen gets
to the office.
now
Mr. Sa comes
to his office.
8:50
8:55
Mr. Zhen
gets to the cafe.
Mr. Bai gets
to the cafe.
7:10
7:00 a.m.
Before I reached Mr. Zhen’s home, he had left.
Mr. He reaches his home.
Mr. Zhen leaves his home.
now
Mr. Zhen 先离开
leave ---left ---left
先发生
过去完成时
后发生
过去时
7:40
7:30
Mr. Zhen gets to the office.
now
Mr. Sa comes to his office.
When I came to Mr. Zhen’s office,
he had arrived(arrive) there.
Mr. Zhen先到办公室
先发生
过去完成时
后发生
过去时
arrive -arrived -arrived
8.55
8.50
Mr. Bai gets to the café.
now
Mr. Zhen gets to café.
By the time I arrived at the cafe,
Mr. Zhen had got there.
Mr.Bai was Lying.
先发生
过去完成时
后发生
过去时
get -got -got/gotten
Mr. Zhen先到咖啡厅
Police found the coffee is poisonous(有毒的).
Mr. Bai is the murder.
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 the other office workers, I heard a loud sound.
过去完成时的构成：_____+___________
had
过去分词
过去完成时常与________________________等引导的时间状语连用。
when, before, by the time
过去完成时
主句为过去完成时，从句是一般过去时，主句动作发生在从句之前。
两个动作同时进行，主从句都是一般过去时或过去进行时。
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
过去完成时由“助动词had (用于各种人称和数) + 过去分词”构成
过去的过去
过去某时
现在
将来
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
（先发生）
（后发生）
1. 过去完成时的构成
2. 过去完成时的概念
过去完成时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”。
3. 过去完成时的句式类型
肯定句：主语＋had ＋过去分词＋…
否定句：主语＋ hadn’t ＋过去分词＋…
一般疑问句：Had ＋主语＋过去分词…？　
(Yes, 主语＋had. / No, 主语＋hadn’t.)
特殊疑问句：疑问词＋had ＋主语＋过去分词＋…？
1. 由时间状语来判定
(1) by + 过去的时间点。
I had finished reading the novel by nine o'clock last night.
昨天晚上九点前我已经读完这本小说了。
(2) by the end of + 过去的时间点。
到...为止
(3) before + 过去的时间点。
在...之前
过去的过去，先发生
4. 过去完成时的判断依据
2. 由“过去的过去”判定
(1) 宾语从句中: 当宾语从句的主句为一般过去时，且从句的动作先于主句的动作时，从句要用过去完成时。在told, said, knew, heard, thought等动词后的宾语从句。
如： 她说她以前看过这电影。
She said that she had seen the film before.
看电影是在她说之前做的。
4. 过去完成时的判断依据
(2) 状语从句中: 在时间、条件、原因、方式等状语从句中，主、从句的动作发生有先后关系，动作在前的，要用过去完成时，动作在后的要用一般过去时。
如： 当我到达车站时，火车已经离开了。
When I got to the station, the train had already left.
火车离开发生在我到达车站之前。
4. 过去完成时的判断依据
2. 由“过去的过去”判定
注意：before, after 引导的时间状语从句中，由于 before 和 after 本身已表达了动作的先后关系，若主、从句表示的动作紧接着发生，则主、从句都用一般过去时。
如： 他关上门，离开了教室。
After he closed the door, he left the classroom.
4. 过去完成时的判断依据
2. 由“过去的过去”判定
5. 过去完成时与一般过去时的区别
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。
①They had arrived at the station by ten yesterday.
他们昨天十点前就到车站了。
②They arrived at the station at ten yesterday.
他们昨天十点到了车站。
1. 时间状语不同
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.
5. 过去完成时与一般过去时的区别
时态 定义 常见的时间状语 例句
一般 过去时 在过去某个时间发生的 动作或存在的状态。 yesterday, last week, ago, just now等 The bus left two
minutes ago.
现在 完成时 过去发生或已发生的动作对现在造成的影响 just, never, ever, so far, already, since, for等 The bus has already left.
过去 完成时 在过去某个时间或动作之前就已发生的动作，即表示动作发生的时间是“过去的过去”。 by the time+从句；by the end of last+时间段； before+过去时间状语等 By the time they got to the bus stop, the bus had already left.
过去完成时与一般过去时、现在完成时的用法区别
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 the other office workers, I heard a loud sound.
be about to do sth.
1)表示即将发生的动作，在时间上指最近的将来。如:
We are about to leave this school. 我们就要离开这所学校了。
2)在含有 be about to do 的句子中，不能再加时间状语。
The medical team is about to start. 医疗队就要出发了。
_____ ___late
didn't ____ ________ or ____ _____ or _____
didn't catch the ____
Carl's dad ____ ____ _ ___
late for class for ___ ______
quickly ___ ___ clothes and _______ _____ the door
woke up
put on
rushed out
eat breakfast
teeth
wash face
bus
gave him a lift
5 minutes
2d
Watch the video and finish the time line.
Matt: Why were you late for class today, Kevin
Kevin: My alarm clock didn’t _______! I kept sleeping, and when I
____________ it was already 8:00 a.m.!
Matt: Oh, no!
Kevin: So I just quickly ______ some clothes and ____________the door.
Matt: You didn’t _____________
Kevin: No, I didn’t even __________________or________________! But
before I __________ the bus stop, the bus ________________.
Matt: Then how did you get here
Kevin: Luckily, Carl’s dad saw me on the street and _____________ in
his car.
Matt: Well, at least ____________ you got to school, you were only five
minutes late for class.
eat breakfast
brush my teeth
wash my face
got to
gave me a lift
go off
woke up
put on
rushed out of
had already left
by the time
Listen and role-play the conversation.
（闹铃等）发出响声
冲出……；跑出……
穿上
give sb. a lift 捎某人一程
go off还有“中断，失去对……的兴趣”的意思，也可表示(食物)变坏，变质，(灯)熄灭，(水，电)断掉，(质量)下降。
e.g.她对咖啡已不感兴趣。给她一些牛奶。
She has gone off coffee. Give some milk to her.
1.My alarm clock didn't go off！
go off (警报器等)突然发出巨响
①rush用作动词，意为“冲，奔，赶紧”。常用短
语rush to do sth.意为“赶紧做某事”。
e.g. She's always rushing to finish first.
她总是赶着第一个完成。
②rush还可用作名词，意为“匆忙，忙碌，争购”。
常用短语：rush hour“高峰时间”，
the Christmas rush “圣诞节前的忙碌”。
2.So I just quickly put on some clothes and rushed out of the door.
rush out 冲出，奔出
e.g. Can you give me a lift？I will be late.
你能捎我一程吗？我要迟到了。
常考的有关give的短语:give sb. sth. /give sth.to sb.把某物给某人
give in交上；屈服；让步
give up放弃　give out分发；散发
give away泄露；暴露；赠送
3.Carl's dad saw me on the street and gave me a lift in his car.
give sb. a lift 捎某人一程
4a. Make sentences using by the time or before.
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.
______________________________________________________________
By the time Mary got up, Tim had already gone into the bathroom.
Before I could put cream in the coffee, the coffee had become cold.
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.
______________________________________________________________
5. The movie started. I arrived at the cinema.
______________________________________________________________
6. My mother finished making the apple pie. I got home from my
language course.
______________________________________________________________
______________________________________________________________
I had completed the work for my boss before the workday ended.
The movie had already 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.
4a. Make sentences using by the time or before.
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
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 ____________ the door to go for my piano lesson.
had
shown up
had forgotten
rushed out
had
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.
arrived at
had gone into
rush out forget arrive at
go into show up find out
had found out
4b. Fill in the blanks with the correct forms of the words in the box.
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 ______________________
I ______________________
I had already had breakfast.
I had already taken a shower.
I had already washed my face.
I have got a present from Tom.
I had had finished the test.
I had finished my homework.
had had too many apples.
had eaten plenty of meat.
have finished all the housework .
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 ______ _______.
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.
5)就在我和别的工作人员一起排队等候的时候，听到了一个巨大的声响。As I ___ ____ ____ ____ with the other office workers,
I ____ ___ ___ _______.
When
had left
By the time
had rung
got to
had already left
was about to
was waiting in line
heard a loud sound
Try to recite Grammar Focus.
（ ）1.By the end of 1976, many buildings _____built in the city.
A. have been B. have
C. had been D. will
（ ） 2.We _________the work by six yesterday evening.
A. finished　 　　　B. would finish　　
C. had finished　 　D. had been finished
Exercises
（ ）3.That dinner was the most expensive meal we___.
A. would have 　　　 B. have had 　　　
C. had never had 　　D. had ever had
（ ） 4.Han Mei told me she _____lunch, so she was
very hungry.
A. has had B. hasn't have
C. have had D. hadn't had
从未吃过
还没有吃
Exercises
用括号中动词的正确时态填空。
1. Ms. Tang said she __________ (see) the movie already.
2. When Betty got to the cinema, the movie __________ (be) on for twenty minutes.
3. After Jim ____________ (finish)all his homework, he went to bed.
4. We ________________ (learn)20 English songs by the end of last month.
5. She ________ (arrive)before 7 o’clock last night.
had seen
had been
had finished
had learned/learnt
arrived
Exercises
Excellent Good To be improved 评价项目 自我评价 同伴评价 教师评价
能够理清过去完成时的涵义、句式类型及基本用法，理解具体在哪些场景中需要应用过去完成时
能够认识其与一般过去时、现在完成时、过去完成时的区别
能够独立完成语法练习，并有较高的正确率
能够在情境中综合应用多种时态，提升自己的表达能力，使得故事的描述更加生动
Homework
Must do: 1.Write a short passage about yourself according to the statements in 4c.
e.g. I had a bad day yesterday. By the time I left for school in the morning, I …
2. Preview Section A (3a—3c).
Try to do: Recite Grammar Focus.