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(共19张PPT)
Section A Grammar Focus
Unit5
Nature’s Temper
Pay attention to the structure of the tense.
I was travelling on the train then.
My children and I were reading together.
When my neighbour called, my family were having dinner.
We were driving home when the strong winds started.
It was raining hard while we were driving back.
was/were + v-ing
Past continuous tense（过去进行时）:
They show an ongoing action in the _____.
now
in the past
past
(1) _____________________ + was + v. -ing.
(2) ___________________ + were + v. -ing.
I /
They / We / You / n. (pl.)
He / She / It / n. (sing.)
过去某一段时间内持续进行的动作
过去某一时刻正在进行的动作
Read the sentences. Underline the verbs which show an ongoing action in the past.
What were you doing while it was snowing heavily I was travelling on the train then.
What were your family doing when the typhoon hit My children and I were reading together.
When my neighbour called, my family were having dinner.
We were driving home when the strong winds started.
While we were driving home, the strong winds started.
It was raining hard while we were driving back.
4a
was/were + v-ing
Past continuous tense（过去进行时）:
Past Continuous Tense
肯定句
否定句
一般疑问句
特殊疑问句
主语＋was/were＋v-ing＋其他.
主语＋wasn’t/weren’t＋v-ing＋其他.
Was/Were＋主语＋v-ing＋其他？
Yes, 主语＋was/were.
No, 主语＋wasn’t/weren’t.
特殊疑问词 + was/were + 主语 + v-ing + 其他
I was sleeping at ten last night.
I wasn’t sleeping at ten last night.
Were you sleeping at ten last night
What were you doing at ten last night
Yes, I was.
No, I wasn’t.
基本句式
swim
hide
cut
beat
hit
watch
shine
lie
Let’s review
read
reading
have
having
travel
travelling
tie
tying
Verb + ing
Drop e + ing
Add a consonant + ing
Change ie into y + ing
rain — raining
drive — driving
sit — sitting
die — dying
hide — hiding
beat — beating
swim — swimming
cut — cutting
hit — hitting
watch — watching
lie — lying
shine — shining
What were you doing while it was snowing heavily
What were your family doing when the typhoon hit
When my neighbour called, my family were having dinner.
We were driving home when the strong winds started.
While we were driving home, the strong winds started.
It was raining hard while we were driving back.
4a
What are the differences between when and while when used in past continuous tense
引导的时间状语从句 从句中的谓语动词
when
while
时间点
瞬间性（非延续性）动词
时间段
延续性动词
延续性动词
时间段
延续性动词 VS. 非延续性动词
延续性动词指动作可以延续一段时间，而不是瞬间结束。
非延续性动词指动作极为短暂，瞬间结束。
do snow have dinner hit stop call
start drive rain sleep leave break
(1) _____________ a shop owner was trying to move wet things, some young people came over
to help.
(2) __________ some families were waiting for clean water, a local company was giving out
free water in the neighbourhood.
(3) A woman was trying to fix her broken windows alone ______ two neighbours came up
with tools to help her.
(4) ______________ a group of volunteers were clearing fallen trees from the road, a car stopped
to offer them water and snacks.
when
While / when
While / When
While / When
Please fill in the blanks with when or while.
延续性动词
延续性动词
瞬间性动词
延续性动词
while 引导的时间状语从句表示时间段,其从句的谓语动词必须是延续性的。
when 引导的时间状语从句可表示时间点和时间段,其从句的谓语动词可以是延续性的,也可以是非延续性的。
1. I did my homework. The typhoon landed on the coast.
2. The power went out. My father and I made dinner.
3. Kate wrote a letter. Her brother called to warn her of the storm.
4. My parents packed the supplies. I moved our things off the floor.
5. I slept soundly. It rained cats and dogs.
Step 1 找出动词,判断延续/非延续
Step 2 确定时态
- 非延续动词 → 一般过去时
- 延续动词 → 过去进行时
Step 3
选择连词
延续性动词
非延续性动词
4a
Combine each pair of sentences using when or while.
1. I did my homework. The typhoon landed on the coast.
Step 1 找出动词,判断延续/非延续
Step 2 确定时态
- 非延续动词 → 一般过去时
- 延续动词 → 过去进行时
Step 3
选择连词
延续性动词
非延续性动词
4a
Combine each pair of sentences using when or while.
When the typhoon landed on the coast, I was doing my homework.
The typhoon landed on the coast while I was doing my homework.
I my homework when the typhoon on the coast.
was doing
landed
2. The power went out. My father and I made dinner.
延续性动词
非延续性动词
go out(火或光)熄灭
The power went out while my father and I were making dinner.
My father and I were making dinner when the power went out.
While my father and I were making dinner, the power went out.
When the power went out, my father and I were making dinner.
Step 1 找出动词,判断延续/非延续
Step 2 确定时态
- 非延续动词 → 一般过去时
- 延续动词 → 过去进行时
Step 3
选择连词
3. Kate wrote a letter. Her brother called to warn her of the storm.
Step 1 找出动词,判断延续/非延续
Step 2 确定时态
- 非延续动词 → 一般过去时
- 延续动词 → 过去进行时
Step 3
选择连词
延续性动词
非延续性动词
4a
Combine each pair of sentences using when or while.
While Kate was writing a letter, her brother called to warn her of the storm.
When her brother called to warn her of the storm, Kate was writing a letter.
Kate was writing a letter when her brother called to warn her of the storm.
Her brother called to warn her of the storm while Kate was writing a letter.
(4) My parents packed the supplies. I moved our things off the floor.
Step 1 找出动词,判断延续/非延续
Step 2 确定时态
- 非延续动词 → 一般过去时
- 延续动词 → 过去进行时
Step 3
选择连词
My parents were packing the supplies while I was moving our things off the floor.
While my parents were packing the supplies, I was moving our things off the floor.
While I was moving our things off the floor, my parents were packing the supplies.
I was moving our things off the floor while my parents were packing the supplies.
延续性动词
Step 1 找出动词,判断延续/非延续
Step 2 确定时态
- 非延续动词 → 一般过去时
- 延续动词 → 过去进行时
Step 3
选择连词
延续性动词
(5) I slept soundly. It rained cats and dogs.
slept well / had a good night’s sleep 睡得很香
It was raining cats and dogs while I was sleeping soundly.
I was sleeping soundly while it was raining cats and dogs.
While it was raining cats and dogs, I was sleeping soundly.
While I was sleeping soundly, it was raining cats and dogs.
　　When Jenny looked up, thick black clouds were forming
in the sky, and the rain _____ beating against their roof.
　　“Quick, this way,” said Dad.
　　The family ran to the safe room at once. ___________
they were waiting, Jenny’s little sister started to cry. Dad gave
her some chocolate and told her that they _____ hiding from
an angry lion. Soon, she was laughing again.
　　At last, the storm passed. _______ they stepped outside, they found the sun shining. People were asking one another if they were safe while some ______ starting to clear the streets. Jenny smiled. The tornado was scary, but it also brought everyone closer together.
Complete the passage with was, were, when or while.
was / were + v. -ing
was
While / When
was / were + v. -ing
were
When
were
4c
It was a tornado.
/t ne d /
(1) What did Jenny notice when the tornado hit
The safe room.
(2) Where did Jenny’s family go to keep safe during the tornado
Thick black clouds were forming in the sky, and the rain was beating against their roof.
Tornado safe rooms are quite common in the United States, especially in Tornado Alley. 龙卷风走廊
Careful reading: Read again and answer the questions.
(3) What did Dad do to make Jenny’s little sister stop crying
He gave her some chocolate and told her that they were hiding from an angry lion.
Because the little girl was too young to understand what a tornado was. By comparing it to an angry lion, Dad made her feel less afraid and helped her accept what was happening more easily.
(4) Why did Dad compare the tornado to an angry lion
(5) Why did the writer think the tornado brought everyone closer together
Later, after the tornado, people cared about each other’s safety and worked together to clean up the streets. These acts brought everyone closer together.
Because during the tornado, her family supported each other closely.
Before the tornado
During the tornado
After the tornado
　　When Jenny looked up, thick black clouds were forming
in the sky, and the rain _____ beating against their roof.
　　“Quick, this way,” said Dad.
　　The family ran to the safe room at once. ___________
they were waiting, Jenny’s little sister started to cry. Dad gave
her some chocolate and told her that they _____ hiding from
an angry lion. Soon, she was laughing again.
　　At last, the storm passed. _______ they stepped outside,
they found the sun shining. People were asking one another if
they were safe while some ______ starting to clear the streets.
Jenny smiled. The tornado was scary, but it also brought everyone
closer together.
was
While / When
were
When
were
pay close attention to weather changes
prepare a tornado safe room
stay calm and run to the safe room at once
comfort those who feel scared
check on one another and ask if everyone is safe
work together to clear up the neighbourhood
What can we learn from their experience with the tornado
Imagine that you are a reporter. Interview a member of Jenny’s family and find out what he or she was doing around the time of the tornado.
A: What were you doing when the tornado hit
B: My family and I were hiding in a safe room.
A: What were you doing while you were waiting there
B: Oh, while I …
4d
Checklist
Contents Points (1–5)
Introduce the typhoon topic naturally
Use proper responses (e.g. I’m sorry to hear that.)
Ask follow-up questions about the experience (why, what, how)
Describe experiences using proper tenses (simple past, past continuous)
End the conversation properly
Total

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