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(共28张PPT)
What were you doing
when the rainstorm came
Unit 5
Grammar-4c
1.Learn and master the usage of adverbial clauses with“when”and“while”.
Learn to talk about past events and tell stories using the target language.
学习目标
I posted a notice(通知) on the WeChat
group at 9:00 pm last Saturday, but 3 students didn’t reply. What were they doing then
Lead in
Presentation
Revision
Pre-grammar
Ask and answer.
What were they doing at 6:00 p.m. yesterday
She was watching TV at that moment.
He was doing his homework at that moment.
They were having a picnic at that moment.
They were playing basketball at that moment.
What was/were … doing at,,,
Peter
at 9:00 yesterday
morning
Mr Green
at 5:00 last Wednesday
Sally
at 9:30 last Sunday
Ted and Sam
at 2:00 yesterday afternoon
talk on the phone/you
sleep late
Swim /you
cook dinner
take a shower
play basketball
at 4:00 pm yesterday
at 11:00 last night
What was he/she doing when you ...
When I … He was doing…
When I called him up, he was sleeping.
___________________ at eight last night I was taking a shower.
__________________at the time of the rainstorm She was doing her homework.
__________________ when the rainstorm came He was reading in the library when the rainstorm came.
What was Ben doing when it began to rain heavily When it began to rain, Ben was helping his mom make dinner.
What was Jenny doing while Linda was sleeping While Linda was sleeping, Jenny was helping Mary with her homework.
Grammar Focus
What were you doing
What was she doing
What was he doing
过去进行时
Yang: I was doing my homework at 9:00 pm last Saturday.
Zheng was playing computer games at that time.
Wen and her sister were studying when I posted a notice.
过去进行时
1、定义：表示过去_________或_________ 正在进行的动作。
2、结构：___________________
某个时刻
某段时间
be (was/ were)+ V-ing
探究学习
When I … He was doing…
When I read the newspaper, he was watching TV.
What was he/she doing when you ...
While I … He was doing…
While I was walking to school, He was eating.
What was he/she doing while you were...
Presentation
Grammar Focus
While-grammar
探究语法规律
探究一：过去进行时的结构和用法
过去进行时的标志词
表示过去时间点的有:then, at that\this time time yesterday, at 5 o'clock last night, When the teacher came in/left等
表示过去时间段的有: all night, all the morning, from 7: 00 to 9: 00 yesterday; while he was reading 等
昨天晚上9点格林一家人没有看电视。
The Greens were not watching TV at 9:00 last night.
When my mother came back,I was eating breakfast
昨天那个时候格雷丝正在花园里浇花。
Grace was watering flowers in the garden at that time yesterday.
I was singing while my sister was dancing.
过去进行时
V-ing变化规律：
口诀 情况 构成规则 举例
play-playing
write-writing
run-running
lie-lying
直接加-ing
去e加-ing
双写尾字母加-ing
ie改为y,加-ing
一般
不发音e结尾
重读辅元辅结尾
ie 结尾
直
去
双
改
小试牛刀：
read-__________
help-__________
shop-__________
take-___________
swim-__________
clean-__________
leave-__________
die-____________
reading
helping
shopping
taking
swimming
cleaning
leaving
dying
探究学习
过去进行时
时间标志词
找出下列句子的时间状语并总结时间状语
I was playing computer games then.
My mother was cooking at that time.
They were reading at 8:00 last night.
When my mother came back,I was eating breakfast
I was singing while my sister was dancing.
★then
★at this/that time
★at+具体时间点+过去时时间状语★when/while引导的过去时间状语从句
探究学习
when 和 while 从属连词 当…的时候， 时间状从
1. When my mother came back, I was cleaning my room.
came 非延续性动词 时间点
2. He fell asleep when he was reading.
read 延续性动词 时间段
when从句，+时间点/段。+延续性/非延续性动词。
主从句， 同时发生或一前一后发生。
when 从句+ 一般过去时/过去进行时
从句，时间段，延续性v.，when/while都可
He fell asleep when/while he was reading.
I met him when/while I was walking in the park.
主句, 从句都是进行时态时，只用while，含对比之意，而
They were singing while we were dancing.
While my mother was cooking, I was doing my homework.
cook 延续性动词， 时间段，
They were singing while we were dancing.
dance 延续性动词， 时间段
while从句，延续性动词，时间段，
while从句，+ 过去进行时
while 强调主句动作在从句动作发生过程中发生
或和从句动作同时发生。
当我在打扫卧室时，我妈回来了。
My mother came back ________ I was cleaning my bedroom.
当他们到达时，正在下雨。
It was raining ________ they arrived.
when
演练
while
What was Jenny doing while Linda was sleeping
While Linda was sleeping, Jenny was helping Mary with her homework.
when/while用法区别
1) *when: 既指时间点，也可指一段时间
while: 只表示一段时间
*when引导的时间状语从句中的动词可
以是瞬间性动词，也可是延续性动词
while从句中的动词必须是延续性动词
1)We were having dinner when the phone rang.
2) I lived in a small village when I was a young boy.
3) While my sister was doing the ironing, I cooked dinner.
she was talking on the phone, her sister walked in.
I found my dog, it was playing with another dog.
I got home, my mother was cooking.
I was dancing, he was singing loudly.
While/When
While
When
When
[when和while]
1．相同点
when 和 while 都可以作从属连词。引导时间状语从句。
都有“当……的时候”的意思。
2．不同点（1）
引导的时间状语从句 从句中的谓语动词
when
while
指时间段，也可以指时间点
可以是延续性动词，也可以是终止性动词
一般指一段时间
表状态的延续性动词
过去进行时和 When 连用
A was/were +doing sth When B +did sth.
长时动作
短时动作
Presentation
Simple sentences:
现在进行时
She is drinking water.
He is singing.
They are dancing.
过去进行时
She was drinking water.
He was singing.
They were dancing.
过去进行时和 while 连用
A was/were +doing sth while B + was/were +doing sth
长时动作
长时动作
Practice
Fill in the blanks with the appropriate form of the given word.
1. Sally took a photo of her friends while they _____________ (play) computer games.
2. Just a minute! My brother ___________ (wash) his car in the garden.
3. — Can Peter play games with us, Mrs. Hawking
—Wait a minute. He _________ (take) a shower.
4. My uncle __________ (read) books in the room at this time yesterday.
5. I was playing computer games when my mother came into my room. (同义句转换)
.
were playing
was washing
is talking
was reading
While/When I was playing computer games, my mother came into my room.
Homework
1
2
Complete the workbook assignment.
Organize classroom notes.
Thanks

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