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(共22张PPT)
Section A Grammar Focus
Unit 5
Nature’s Temper
、
4a
Read the sentences. Underline the verbs which show an ongoing action in the past.
、
I was laughing and you were smiling.
Sun was shining and the birds were flying.
Wind was blowing and the waves were breaking.
We were playing together all day long.
过去进行时
the past continuous tense
Warming-up
、
1.定义
表示过去某个时刻或某一时间段正在进行或发生的动作。
The Greens were watching TV at 9:00 last night.
She was doing her homework from 5:00 to 6:00 yesterday afternoon.
过去进行时
the past continuous tense
Grammar1
、
I was having breakfast at 7:00 am yesterday.
7:00 am yesterday
过去进行时
the past continuous tense
2.用法
（1）过去进行时表示过去某一时刻正在进行的动作。时间点可以用介词短语、副词或从句来表示，也可由上下语境暗示。
、
From 1982 to 1998, she was teaching at Yale.
from 1982 to 1998
过去进行时
the past continuous tense
2.用法
(2) 过去进行时表示过去某阶段一直在进行的动作。
、
过去进行时
the past continuous tense
3.标志词
at this/that time yesterday
at 9:00 yesterday morning
at the time of ...
at that moment
from 8:00 to10:00 yesterday morning
when和while引导的时间状语从句
、
4.构成
They were running at that time.
John bought a drink while Mary was taking photos.
was/were+doing
什么时候用was
什么时候用were
过去进行时
the past continuous tense
、
Mary and Lily were not running at that time.
Mary bought a drink while John was taking photos.
什么时候用was
什么时候用were
Were you doing your homework at 8 o’clock yesterday morning
I was cleaning the floor at the time of the rainstorm.
She was waiting for the bus at that time.
主语是第一人称单数或第三人称单数时，用was
主语是第二人称和复数时用were
过去进行时
the past continuous tense
、
动词现在分词的变化规则:
口诀 规则 例子
直 1.一般情况下，直接在动词之后+ing. play—playing
study—studying
去 2.以不发音的e结尾的动词，去e再加ing. take—taking
dance—dancing
双 3.重读闭音节的动词，双写尾字母 再加ing. cut—cutting
swim—swimming
变 4.以ie结尾的动词，把ie变为y再加ing. lie—lying die—dying
tie—tying
过去进行时
the past continuous tense
、
5.句型
主语+was/were +动词-ing形式+其他.
肯定句
I was cleaning the floor at the time of the rainstorm.
She was waiting for the bus at that time.
过去进行时
the past continuous tense
、
主语+was/were not +动词-ing形式+其他.
否定句
They were not running at that time.
He was not reading at this time yesterday .
过去进行时
the past continuous tense
5.句型
、
They weren’t running at that time.
He wasn’t reading at this time yesterday .
was not=wasn’t
were not=weren’t
过去进行时
the past continuous tense
5.句型
、
Was/Were+主语+动词-ing形式+其他
Were you sleeping at 9 last night
过去进行时
the past continuous tense
Was she hanging out with her friend at that time
5.句型
、
Was/Were+主语+动词-ing形式+其他
肯定
回答
Were you sleeping at 9 last night
Yes, I was.
否定
回答
No, I was not./I wasn’t.
Yes, 主语+was/were.
No, 主语+was/were not.
过去进行时
the past continuous tense
5.句型
、
when引导的时间状语从句
when
当……时候
at or during the time that
It was snowing when we arrived at the station.
时间
状语从句
主句
瞬间
动词
一般
过去时
Grammar2
、
when引导的时间状语从句
when
当……时候
at or during the time that
When we were singing, she came in.
时间
状语从句
主句
延续性
动词
过去
进行时
、
while引导的时间状语从句
while
当……时候
during the time that
While he was reading in the library, the rainstorm came.
时间
状语从句
主句
延续性
动词
过去
进行时
Grammar3
、
while引导的时间状语从句
while
当……时候
during the time that
They were singing while we were dancing.
主句
延续性
动词
时间
状语从句
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.
___________________________________________________________
S. I slept soundly. It rained cats and dogs.
___________________________________________________________
I was doing my homework when the typhoon landed on the coast.
My father and I were making dinner when the power went out .
Kate was writing a letter when her brother called to warn her of the storm.
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.
Combine each pair of sentences using when or while.
4b
go out（火或灯光）熄灭
warn sb of... 警告某人…
下倾盆大雨
、
Complete the passage with was, were, when, or while.
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.
When Jenny looked up, thick black clouds were forming in the sky, and the rain _______ beating against their roof.
“Quick, this way,” said Dad.
was
were
While
When
were
抬头看
厚厚的乌云
形成
拍打
立刻
躲避
发现阳光闪耀
清理
bring everyone closer together 让大家的心靠得更近
龙卷风
、
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 ...
My family and I were hiding in a safe room.
Excuse me, Miss. What were you doing when the tornado hit
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

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