资源简介

(共49张PPT)
https://book.21cnjy.com/studio/detail id=2032
What happens during a natural disaster
(Section A Grammar)
人教版（2024） 八年级下册
Unit 5 Nature’s Temper
通过本节课学习，我能够：
1. 观察并归纳过去进行时的结构（was/were + doing）
及其基本用法，正确运用过去进行时描述过去某个时
刻正在发生的事情。
2. 识别句子中过去进行时的形式以及 when /while 引导
的从句，理解并区分 when 和 while 在引导时间状语
从句时的不同用法。
Learning objectives
Review
Look and fill in the blanks.
What was the boy doing when the typhoon hit
He _________________ with his family at home.
What was the girl’s grandparents doing when the typhoon hit
They __________________ at home.
What were the children doing at the time of the typhoon
They _____________ books together.
was having dinner
were playing chess
were reading
What were people doing at the time of rainstorm
Lead-in
What was the girl doing at the time of the rainstorm
She was doing her homework at home.
What was the boy doing at the time of the rainstorm
He was reading a book in the library.
What was the woman doing at the time of the rainstorm
She was waiting for the bus at the bus stop.
What was the man doing at the time of the rainstorm
He was walking home from shopping.
What tense did we use to talk about people’s activities just now
Past Continuous Tense.
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. Read the sentences. Underline the verbs which show an ongoing action in the past.
4a
一、定义：
过去进行时
表示过去某个时刻或某一时间段正在进行或发生的动作。
二、时间标志词：
then, at this/that time yesterday, the whole morning, at 9:00 yesterday morning, all night等；或以when, while 引导的时间状语从句。
Grammar
1. 基本结构：主语 + was /were + doing +其他。
2. 否定形式：主语 + wasn’t /weren’t +doing +其他。
三、构成：
3. 一般疑问句：Was /Were +主语 + doing +其他？
肯定回答：Yes, 主语 + was /were.
否定回答：No, 主语 + wasn’t /weren’t.
4. 特殊疑问句：特殊疑问词+ was /were +主语 + doing +其他？
The students were drawing pictures at five yesterday afternoon.
昨天下午五点学生们正在画画。
We were not watching TV at that time.
那个时候我们没在看电视。
Was he playing football this time yesterday
昨天这个时候他正在踢足球吗？
What was he doing at seven last night
昨天晚上七点他正在做什么？
1. 过去进行时主要用来表示过去某一时刻或某一段时间内正在进行
的动作或存在的状态。此时句中往往有表示过去的时间状语 at
that moment，at that time，this time yesterday，at nine o’clock
last night等。
四、过去进行时的用法：
What were you doing this time last night
昨天晚上这个时候你在做什么？
At that moment, we were having dinner together.
那个时候，我们正在一起吃晚饭。
2. 表示一个过去的动作发生时或发生之后，另一个过去的动作
正在进行。
I was writing a letter when you phoned.
你打电话时我正在写信。
While we were having breakfast, John was talking on the phone.
我们在吃早饭的时候，约翰在打电话。
3. 表示两个过去的动作同时进行，这时可用连接词while连接。
4. 有时没有时间状语，需要根据语境体会。
He told me not to speak loudly. The baby was sleeping.
他告诉我不要大声讲话，那个婴儿正在睡觉。
Once a Chinese was traveling in the desert.
从前一个中国人正在沙漠里旅行。
5. 常用于介绍故事背景。
A mother wolf was looking for food near the river.
一只母狼在河边觅食。
6. 表示从过去某一时间看将要发生的动作。常表示过去“渐渐，快
要，越来越，马上等”，常见的此类动词有 come，go，start，
begin，leave，arrive，get，become，turn等非持续性动词。偶
尔有些持续性动词如do，stay，take等也可表示过去“将要”。
We were running out of the petrol. 我们的汽油快用光了。
It was getting dark when we arrived.
我们到达时天渐渐变黑了。
She told me that she was leaving for Italy the next day.
她告诉我她第二天就出发去意大利。
7. 过去进行时常与always等连用，表示过去反复发生的行为动
作，带有赞美、厌烦等感彩。
She was always finding fault with him.
她以前总是挑他的毛病。
Observe these two sentences then fill in the blanks.
When my neighbour called, my family were having dinner.
We were driving home when the strong winds started.
主句
从句
主句
从句
主句的动作是________性的，从句的动作是________性的，此时用________ 引导时间状语从句，主句用 __________ 时态，从句用___________时态。
持续
短暂
when
过去进行
一般过去
He fell asleep, while she was doing her English exercises.
While we were driving home, the strong winds started.
主句
从句
主句
从句
主句的动作是_______性的，从句的动作是________性的。此时用 _______ 引导从句，主句用 __________ 时态，从句用__________时态。
短暂
持续
while
一般过去
过去进行
What were you doing while it was snowing heavily
While we were driving back, it was raining hard.
主句
从句
主句
从句
主句和从句的动作在过去的某时刻或某段时间______发生，而且动作都是_______性的，此时用 ______引导从句，而且主句和从句都用___________ 时态。
同时
持续
while
过去进行
五、while与when辨析：
从句的动词 动作 从句的时态
while
when
持续性动词
持续性动词
或短暂性动词
同时发生
可同时，
也可一前一后
进行时
一般现在时
或一般过去时
1. 一般过去时表示在过去某个时间发生过的动作或存在的
状态。
2. 现在进行时表示某一动作正在发生。
六、一般过去时态、现在进行时与过去进行时的比较：
David wrote a letter to his friend last night.
大卫昨晚给他的朋友写了封信。(信写完了)
Listen, the girl is singing in the next room.
听，那个女孩正在隔壁房间里唱歌。(正在发生)
3. 过去进行时表示在过去某一时刻或某一段时间正在进行的
动作。
Mary was doing her homework when her mother was
cooking.
当玛丽的妈妈正在做饭时，玛丽正在做作业。(过去进行时)
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.
Combine each pair of sentences using when or while.
4b
1. I did my homework. The typhoon landed on the coast.
I was doing my homework when the typhoon landed on the coast.
=When the typhoon landed on the coast, I was doing my homework.
=While I was doing my homework, the typhoon landed on the coast.
2. The power went out. My father and I made dinner.
My father and I were making dinner when the power went out.
=When the power went out, my father and I were making dinner.
=While my father and I were making dinner, the power went out.
go out (火或灯光)熄灭
3. Kate wrote a letter. Her brother called to warn her of the storm.
warn sb of/about sth
警告/提醒某人注意某事
Kate was writing a letter when her brother called to warn her of the storm.
=While Kate was writing 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.
While my parents were packing the supplies, I was moving our things off the floor.
=My parents were packing the supplies while I was moving our things off the floor.
I was sleeping soundly while it was raining cats and dogs.
=While it was raining cats and dogs, I was sleeping soundly.
rain cats and dogs
下倾盆大雨
We have learned about typhoon. It is scary, but it also brings people closer together.
This class we will read a story about another scary natural disaster.
Let’s watch a video and learn about what it is.
Complete the passage with was, were, when, or while.
When Jenny looked up, thick black clouds were forming in the sky, and the rain ______ beating against their roof.
“Quick, this way,” said Dad.
4c
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
were
When
were
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…
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.
4d
Let’s watch a video then make your own conversation.
Please share your interview now.
1. The power went out.
power n. 电力供应；能量；力量
Language points
① 电力；能量(常指电能、动力)
② 力量；能力(可指人或物的能力)
③ 权力；权势(指人或机构的控制权)
The city lost power after the storm. 暴风雨后城市停电了。
She has the power to solve the problem. 她有能力解决这个问题。
The new party has been in power for two years. 新政党已执政两年。
常见用法:
electric power 电力 power cut/failure 停电
nuclear/wind/solar power 核能/风能/太阳能
power station 发电站
have the power to do sth. 有能力做某事
out of one's power 力所不能及
in power 执政；掌权
2. I slept soundly. 我睡得很酣畅。
soundly adv. (睡觉) 酣畅地；可靠地；完全彻底地
The baby slept soundly all night. 宝宝整晚都睡得很香甜。
Experimental data soundly supported his theory.
实验数据可靠地支持了他的理论。
The team was soundly defeated. 该队一败涂地。
3. ..., thick black clouds were forming in the sky, ...
thick adj. 厚的；浓密的 反义词：thin adj. 薄的；细的；稀的
(1) 厚的；粗的
(2) 浓的；稠的(指液体或气体浓度高)
(3) 茂密的；密集的(指物体分布紧密)
相关词形:
(1) thickly adv. 浓密地；厚厚地
(2) thickness n. 厚度
This book is very thick. 这本书很厚。
The ice is too thin to skate on. 冰太薄了，不能在上面滑冰。
The soup is too thick. 汤太稠了。
We walked through a thick forest. 我们步行穿过一片茂密的森林。
She spread butter thickly on the bread.
她在面包上涂了厚厚的一层黄油。
The thickness of the ice is only 1 centimeter. 冰的厚度只有一厘米。
4. ..., and the rain was beating against their roof.
beat v. (beat, beaten) 敲；打
(1)指雨、风沙等敲打门、窗户等，或者用手敲打身体的某个部位；
(2)指心脏等有规律地作响或跳动； (3)指在比赛中打败某人取得胜利。
The rainstorm beat against the windows hard. 暴风雨猛烈地敲打着窗户。
Don't beat the kid on the head. 不要敲打孩子的头部。
His heart beat fast when he saw the new teacher.
当他看到新老师的时候他的心跳加速。
Class 2 beat Class 1 in the soccer game. 足球比赛中二班打败了一班。
辨析：beat 与 win
beat “打败”，其宾语通常是人、团队或对手等具体名词。
win “赢得”，其宾语通常是比赛、奖品、名次等抽象名词。
Class 1 beat Class 2 in the soccer game.
足球比赛中一班打败了二班。
He won the chess match last week.
上周他赢得了国际象棋比赛。
5. ... they were hiding from an angry lion.
hide v. (hid, hidden) 躲藏；隐蔽
既可作及物动词，也可作不及物动词，意为“躲避，藏；遮挡；隐瞒”。
常见用法: (1) hide away 隐藏起来
(2) hide behind 躲在......后面 (3) hide from 躲避......
(4) hide in 藏在.....里 (5) hide-and-seek 捉迷藏
(6) hide one's face 捂脸；因羞愧或尴尬而躲避，不愿意见人
(7) hide something from someone 对某人隐瞒某事
I hide my candy under the pillow. 我把糖果藏在枕头下面。
The cat hides away in the corner. 猫躲在角落里。
The children hide behind the tree to surprise their mum.
孩子们躲在树后想给他们的妈妈一个惊喜。
The kids hide from the sun under the tree. 孩子们躲在树下躲避阳光。
We play hide-and-seek in the park. 我们在公园里玩捉迷藏。
She hides her face when she cries. 她哭的时候捂住了脸。
I shouldn't hide my bad grades from my parents.
我不应该向父母隐瞒我的糟糕成绩。
Section A (Grammar Focus)
Grammar:
1. Past Continuous Tense.
2. when和while引导时间状语的差异。
Summary
Exercise
I. 用括号内所给单词的适当形式填空。
1. Tom ____________ (read) when I called him yesterday.
2. I was watching TV while my parents _____________ (chat) on the
WeChat.
3. While I was trying to find my way out, I suddenly ________ (hear)
some noise.
4. --I went to your home yesterday morning, but you weren’t in.
--Well, I _____________ (walk) along the river at that time.
5. --What were you doing at this time yesterday
--I ___________ (see) a movie named Lost in Russia.
was reading
were chatting
heard
was walking
was seeing
1. My mother ______ in the kitchen when the rainstorm came.
A. was cooking B. is cooking C. cooks
2. --What happened to Mrs. Smart
--She cut herself while she ______ lunch.
A. prepares B. is preparing C. was preparing
3. --Why didn’t Alice come to the party last night
--Because she ________ online classes at that time.
A. takes B. took C. was taking D. has taken
Ⅱ. 单项选择。
A
C
C
4. Yesterday Mom ________ me some money to buy a dictionary.
A. gives B. gave C. has given D. was giving
5. --_______ did the rainstorm come, Mr. Liu
--While we _______ a chemistry lesson yesterday afternoon.
A. When; have had B. When; were having
C. While; are having D. While; have
B
B
Homework
1. Review the usage of Past Continuous Tense.
2. Make at least five sentences with Past Continuous Tense.
Must do:
Interview at least five students or your family members about what he/she was doing at the time of ...
Try to do:
THANK
21世纪教育网（www.21cnjy.com)
中小学教育资源网站
明元英语工作室：
https://book.21cnjy.com/studio/detail id=2032
WELCOME TO

展开更多......

收起↑