资源简介

(共41张PPT)
Unit 8 Safe and sound
Grammar
译林 （2024版）八年级
上
Learning objectives
1
Lead in
Presentation
3
Practice
Production
5
Summary
Assessment
7
Homework
2
4
6
8
By the end of the lesson, I will be able to...
1
2
3
learn the use of the past continuous tense;
learn the differences between 'when', 'while', and 'as' and practice their correct usage;
use the past continuous tense to describe emergencies or natural disasters.
00
Learning objectives
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Lead in
01
What was Tom doing
Tom/He was playing football.
What is Tom doing
Tom/He is having a meal.
Look and say.
Lead in
01
Look and say.
What was Lucy doing
Lucy/She was reading a book.
What is Lucy doing
Lucy/She is reading a book.
Lead in
01
Tom/He was playing football.
Lucy/She was reading a book.
Lucy/She is reading a book.
Lucy/She is reading a book.
Read and think.
现在进行时：am/is/are + doing
Suzy and Amy are talking about an accident.
Presentation
02
Look and say.
Suzy: There ________________near our school at 4:10 yesterday afternoon.
was an accident
It happened as we _____________ home from school.
were going
Presentation
02
Look and say.
Amy: I know. I saw it while I __________ my bike home. It ___________ when the police arrived.
was raining
was riding
Read the conversation below and pay attention to the tense.
Read and find.
Presentation
02
Suzy: There ________________near our school at 4:10 yesterday afternoon.
was an accident
It happened as we _____________ home from school.
were going
Amy: I know. I saw it while I __________ my bike home. It ___________ when the police arrived.
was raining
was riding
过去进行时:was/were + doing
Tom/He was playing football.
Lucy/She was reading a book.
Suzy: There was an accident near our school at 4:10 yesterday afternoon.
It happened as we _____________ home from school.
Amy: I know. I saw it while I __________ my bike home. It ___________
when the police arrived.
Suzy: I didn't see it. I hope no one was badly hurt.
were going
was raining
was riding
We use the past continuous tense to talk about things that were happening at a particular time in the past.
We form the past continuous tense like this: _________ + v-ing.
was/were
Presentation
02
Work out the rules.
: 过去进行时表示_____________ 或____________
___________ 的动作。
① I was watching TV at eight last night.
昨晚八点我正在看电视。
② He was waiting for the bus at this time yesterday.
昨天这个时候他在等公交车。
1. 定义
常与过去进行时连用的时间状语有： at this time yesterday / at 9:00 last night / the whole morning 等。
Presentation
02
Look and learn.
过去某个时刻
某一时段
正在进行
We were watching TV at that time.
She was eating breakfast at 6 am yesterday.
否定句:
肯定句:
2. 结构
主语
+ was/were
+ V-ing
+其他.
主语
+ wasn't/weren't
+ V-ing
+ 其他.
Presentation
02
Look and learn.
We weren’t watching TV at that time.
She wasn’t eating breakfast at 6 am yesterday.
- Were you playing basketball at that time
- Yes, we were. / No, we weren't.
一般疑问句:
肯定回答：Yes,
否定回答：No,
+ 主语
Was/Were
+ V-ing
+其他
主语
+ was/ were.
主语
+ wasn't/weren't.
特殊疑问句：
What were you doing at 7:00 last night
+ 主语
疑问词
+V-ing
+ was/were
+其他
你昨晚7点在做什么？
Presentation
02
Look and learn.
The rule: We use the past continuous tense to talk about things that were happening at a particular time in the past.
结构 was/were + doing(verb-ing) 肯定 I/He/She/It was + doing We/You/They were + doing 否定 I/He/She/It was not + doing We/You/They were not + doing 一般疑问句和简略回答 Was I doing ... Yes, you were. No, you were not.
Was he/she/it doing ... Yes, he/she/it was. No, he/she/it wasn’t.
Were you doing ... Yes, I was. No, I wasn’t.
Yes, we were. No, we weren’t.
Were we doing ... Yes, we/you were. No, we/you were not.
Were they doing ... Yes, they were. No, they weren’t.
Presentation
02
Look and learn.
Look at the pictures. Write two sentences for each picture.
Presentation
02
Look and answer.
For example:
Rachel was at home. She was watching TV.
Look at the pictures. Write two sentences for each picture.
Presentation
02
Look and answer.
Jack and Kate _______________________
They _______________________________
were at the cinema.
were watching a film.
Look at the pictures. Write two sentences for each picture.
Presentation
02
Look and answer.
Tom _____________
He______________
was in his car.
was driving.
Look at the pictures. Write two sentences for each picture.
Presentation
02
Look and answer.
Tracey _________________.
He______________________.
was at the station
was waiting for a train
Look at the pictures. Write two sentences for each picture.
Presentation
02
Look and answer.
Mr and Mrs Hall _________________.
They______________________.
were in the park
were walking
Work in pairs and make up dialogues, talking about things happened at a particular time in the past.
Presentation
02
Work in pairs.
What was … doing ...
Was … doing ...
I was …
Yes/No. He/She/They ...
Read the conversation again and pay attention to the circled words.
Suzy: There was an accident near our school at 4:10 yesterday
afternoon. It happened as we were going home from school.
Amy: I know. I saw it while I was riding my bike home. It was
raining when the police arrived.
Suzy: I didn't see it. I hope no one was badly hurt.
当……时
Presentation
02
Read and find.
What does these words mean
What are their similarities and differences
when、while 和 as 这三个词均有“当……时候”的意思。
Presentation
02
Look and learn.
It happened as we were going home from school.
当时我们正放学回家，事故就发生了。
I saw it while I was riding my bike home.
我骑自行车回家的时候看到了。
It was raining when the police arrived.
警察赶到的时候正在下雨
when, while和as的不同点
Presentation
02
Look and learn.
It happened as we were going home from school.
当时我们正放学回家，事故就发生了。
“正当… 的同时”
“一边… 一边” 的伴随关系
I saw it while I was riding my bike home.
我骑自行车回家的时候看到了。
“同一时间段内持续进行”
突出动作的 “伴随性” 。
It was raining when the police arrived.
警察赶到的时候正在下雨。
下雨的持续动作，被 “警察赶到” 的短暂动作打断。
when和as引导的时间状语从句中的谓语动词既可以是延续性的，也可以是瞬间性的；while引导的时间状语从句中的谓语动词只能是延续性的。
词 动作类型适配 场景特点
as 主从句均为延续性动作 强调 “动作同时并行”
while 后接延续性动作（常配进行时） 强调 “动作在同一时段持续伴随”
when 延续 / 非延续性动作均可 可用于 “短暂动作打断持续动作”
Presentation
02
Look and learn.
( )When/As he woke up, it was eight o'clock.
( )While he woke up, it was eight o'clock.
( )When/While/As I was waiting for a bus, I met her.
√
×
√
1. It began to rain ______________ Linda was having supper.
2. What were you doing _____ Mr Jackson came into the classroom
3. ______________ you are driving, don’t use your mobile phone.
4. We were having a meeting ______ the light went off.
5. I was looking after the child ______ Jenny was cooking lunch.
6. _________ I arrived at his office, he was chatting on the phone.
when/while/as
when
When/While/As
when
while
When/As
Presentation
02
Fill in the blanks.
Another snowstorm hit Harbin. Simon is asking his grandpa about it.
Practice
03
Simon: Hello, Grandpa. How was your day
Grandpa: Not bad. Thank you, Simon. We just had the third snowstorm
of this winter. It (1)_____________(get) stronger while I
(2)___________(read) the newspaper at about 7 this morning.
What about you, Simon
Simon: We're all very well, Grandpa. It (3)____________(snow)here in
Beijing when we went to the Palace Museum during the day.
Lots of people (4)_______________(enjoy) the beauty of the
Palace Museum in the snow.
Grandpa: Sounds nice. Maybe I (5)______________(watch) the wonderful
view on TV while you (6)______________(visit) there.
Simon: Yeah, it was really e and take a look by yourself
next time.
Complete their conversation with the correct forms of the verbs in brackets.
A
got
was reading
was snowing
were enjoying
was watching
were visiting
Read and complete.
Harbin woke up to a winter wonderland last week. There was a big
snowstorm.
When I got up on Saturday morning, it (1)______________(snow) heavily. The wind (2)______________(blow) hard all morning, but that just meant more time for fun inside with my family.
It stopped snowing in the afternoon. Guess what I did I built a
snowman! I (3)______________(draw) a big smile on his face, put my hat on his head and took a photo. When it was almost time for dinner, I went home. Some people in the neighbourhood (4)_____________(clear)
the snow from the streets.
When I got home, my parents (5)______________(get) dinner ready. While we (6)______________ (enjoy) our meal, it began to snow again. It was so nice to have hot jiaozi on a cold day!
Complete her article with the correct forms of the verbs in brackets.
B
was snowing
was blowing
drew
were cleaning
were getting
were enjoying
Practice
03
Complete the article.
The earth started
to shake.
I was safe at last.
The walls came down.
I was trapped.
I shouted for help.
People ran in all directions.
Let’s talk!
Production
04
Timmy was working in his office when the earthquake started.
For example：
Talk about Timmy’s story, using past continuous tense as much as you can.
Talk about one of your experiences in serious weather or accidents, using past continuous tense as much as you can.
For example:
Last Sunday at 7 p.m., my town had a sudden power cut. We were all busy then: My mom was cooking in the kitchen, so we ate bread and fruit instead. My dad was writing a report in the study, and he had to finish it later. I was taking a shower, so I got dressed in the dark. After that, we knew how important electricity is in daily life.
Production
04
Talk & Narrate.
Sentence Structure
At [具体时间] last [星期 / 月份], [天气 / 事故]
描述 “当时正在做的事”
I was doing sth. when the [事件] started.
My [家人 / 朋友] was doing sth. at that time.
描述事件影响
We had to + 应对动作 because of the [事件].
收尾：感受 / 收获
From then on, I learned/realized that + 感受.
Show time
Talk clearly (内容清晰)
Pronunciation(发音标准)
Body language(使用肢体语言)
Fluently(流利的)
Reasonable(理由合理)
Grade and share:
一、用所给动词的适当形式填空
I __________ (read) a book when the phone __________ (ring) yesterday evening.
They ______________ (play) basketball while their teacher __________ (watch) them on the playground.
As we _____________ (walk) home from school, it __________ (begin) to rain heavily.
When I __________ (get) up this morning, my mother _____________ (cook) breakfast in the kitchen.
The wind _____________ (blow) hard while the snow __________ (fall) heavily during last night’s snowstorm.
Summary
05
The grammar we have learned
was reading
rang
were playing
was watching
were walking
began
got
was cooking
was blowing
was falling
二、句子纠错。
He were watching TV when the earthquake started.
→ __________________________________________________________
We was running in all directions while the walls came down.
→ __________________________________________________________
She is reading a storybook when her friend called her.
→ __________________________________________________________
While they play football, it began to rain suddenly.
→ __________________________________________________________
As I walking to the supermarket, I saw a small dog on the road.
→ __________________________________________________________
Summary
05
The grammar we have learned
were- was
As I was walking to the supermarket, I saw a small dog on the road.
was-were
is-was
While they were playing football, it began to rain suddenly.
三、用 when/while/as 填空（区分连词用法）
__________ I was doing my homework, my father came back from work.
__________ the teacher entered the classroom, the students were talking loudly.
__________ we were waiting for the bus, it started to snow lightly.
__________ he was riding his bike to school, he fell off and hurt his knee.
__________ the sun was rising, we finally reached the top of the mountain.
Summary
05
The grammar we have learned
While
When
While
When/As
As
句子翻译。
昨天下午地震开始时，我正在办公室工作。 ________________________________________________________________________
当雪暴变强时，爷爷正在客厅看报纸。 _________________________________________________________________________________________________________________________________
玻璃和砖块像雨一样落下时，人们正惊恐地四处奔跑。
_________________________________________________________________________________________________________________________________
我正在尝试寻找出路，这时突然听到头顶传来一阵声响。
__________________________________________________________________________________________________________________________________
Summary
05
The grammar we have learned
I was working in the office when the earthquake started yesterday afternoon.
When the snowstorm got stronger, Grandpa was reading the newspaper in the living room.
While pieces of glass and bricks were raining down, people were running in all directions in fear.
I was trying to find my way out when I suddenly heard some noise above me.
Assessment
06
Self-assessment
I can learn the use of the past continuous tense.
I can learn the differences between 'when', 'while', and 'as' and practice their correct usage.
I can use the past continuous tense to describe emergencies or natural disasters.
基础：完成教材 A、B 部分的动词填空（核对答案并标注过去进行时的构成）。
Homework
07
提升：编写一段 3-5 句的对话，内容为 “谈论昨天下午的一次小事件”，至少运用 2 次过去进行时，正确使用 when/while 连接从句。
拓展：结合单元 “自然灾难” 主题，写一篇 60 词左右的短文，描述 “你听说过的一次灾害场景”，至少运用 3 次过去进行时。
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