Unit5 SectionA Grammar Focus - 4c课件2024-2025学年人教版英语八年级下册 Unit 5 What were you doing when the rainsto

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Unit 5 What were you doing when the rainstorm came
Section A (Grammar focus-4c)
Dictation
大风 大暴风雨
睡着 醒来
乱七八糟 打扫
接电话 洗淋浴
在那时 确保
相互帮助 感觉像
strong winds
a heavy rainstorm
fall asleep
wake up
in a mess
clean up
pick up the phone
take a shower
at that time
make sure
help each other
feel like
When I …
He was doing …
When I called him up, he was sleeping.
Lead - in
1. Yesterday evening I was playing the piano _____ the doorbell rang.
A.when B.before C.while D.where
2. —Lisa,I called you just now.Where were you
—Sorry,I____a shower.
A.take B.am taking C.was taking D.took
C
A
New words
icy
kid
have a look = look
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.
句式 构成
肯定句 主语+ was/were + 现在分词…
否定句 主语+ was/were+not + 现在分词…
一般疑问句 Was/Were + 主语+ 现在分词…
特殊疑问句 特殊疑问词+ was/were（＋主语）+现在分词…
各种句式：
标志：过去进行时的常用时间状语：过去进行时常用then (那时),
last night (昨晚), at that time (当时), at three yesterday (昨天3点), the whole morning (整个上午)，at this time yesterday (昨天这个时候)等作时间状语。
eg: What were you doing at 9:30 yesterday evening
昨天晚上9: 30 你在干什么？
It was raining heavily at this time yesterday.
昨天的这个时候雨正下得很大。
eg: The students were having math class at three yesterday afternoon.
昨天下午3点学生们正在上数学课。
We were not playing basketball at that time.
那个时候我们没在打篮球。
Was he playing basketball this time yesterday
昨天这个时候他正在打篮球吗？
What was he doing at nine last night
昨天晚上9点他正在做什么？
用法：
1. 过去进行时常表示过去某一时刻或过去某一阶段内正在进行的动作。
eg: I was talking with my mother at this time yesterday.
昨天的这个时候我正和我妈妈聊天。
2. 过去进行时可表示两个动作同时进行。
eg: While I was doing my homework, my mother was cooking.
当我写作业时，我妈妈在做饭。
过去进行时态
概念：表示在过去某一时刻或某一段时间内正在进行的动作。
时间标志：this time yesterday, at 9:00 yesterday morning 或以when, while 引导的时间状语从句。
构成：基本结构：主语+was/were + v.-ing +其他成分否定
昨晚那个时间你正在做什么？
—What _____ you ______at that time last night
我正在洗澡。
—I ___________ a shower.
doing
were
was taking
一般疑问句：将be提前
形式：在be后面加not
Look at the table and write sentences
with both while and when.
John Mary
take photos buy a drink
play the piano leave the house
clean his room turn on the radio
shop take the car to the
car wash
活学活用
4a
when 和 While 用法小结
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。
引导的时间状语从句 从句中的谓语动词
when
while
不同点1：
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
知识梳理
Language points
过去进行时
概念：过去进行时表示在过去某一时刻或某一时间段内正在进行或发生的动作。
结构：过去进行时由“was/were＋动词的 ing形式”
eg: Peter was reading a book in the library when the rainstorm came.
当暴风雨来临时，彼得正在图书馆读书。
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
4b
2.由 while 和when 的时间状语从句
1.常用时间状语： at 7:00 last night, at that time, at this time yesterday, yesterday morning, from 10 to 12,all morning, the whole morning…
Tom was running to the bus stop at 7:50 this morning.
Tom was waiting for the bus from 7 to 9 this morning.
Tom was writing a story at this time yesterday.
修饰
时间状语
Look at the table and write sentences with both while and when.
4c
1. While John was taking photos, Mary bought a drink.
John was taking photos when Mary bought a drink.
John Mary
take photos buy a drink
play the piano leave the house
clean his room turn on the radio
shop take the car to the car wash
延续性动词
非延续性动词
相同均为连词,均可译为“当…之时
不同while 指时间段内发生的动作,其
后必须是延续性动词,使用进行时:
when指时间点发生的动作，其后
动词不可持续,用一般过去时态。
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.
when和while使用时到底有什么区别呢？
过去进行时
when与 while
1) when 可指时间点, 又可指时间段, 从句中可用延续性动词,
也可用非延续性动词。
when 引导的从句可用过去进行时，也可用一般过去时.
2) while 总是指一个时间段, 从句中必须用延续性动词。
while 引导的从句通常用过去进行时.
小试牛刀
1. Alice _______ for the bus at the seven yesterday evening.
A. is waiting B. was waiting C. waits D. waited
2. Sally took a photo of her friends while they ________ computer games.
A.play B. are playing C．have played D. were playing
Tips:时态做题方法:
1、找时间标志词
2、确定所用时态
3、若没有时间标志词，根据语境判断
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