unit 5 What were you doing when the rainstorm came?第3课时Section A (Grammar Focus－4c) 课件（24张PPT）

(共24张PPT)
Unit 5　What were you doing when the rainstorm came
Section A Grammar Focus－4c
情景导入
Where are you
I am in the classroom.
What are you doing
I am answering your questions.
生成新知
Grammar Focus
What were you doing at eight last night I was taking a shower.
What was she doing at the time of the rainstorm She was doing her homework.
What was he doing 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.
过去进行时
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。
时间标志词：
at this/that time yesterday, at 9:00 yesterday
morning, all night等；
或以when, while 引导的时间状语从句。
构成：
基本结构：主语+was/were + doing +其他。
否定形式：主语+wasn’t/weren’t +doing+其他。
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.
特殊疑问句：特殊疑问词+ was/were +主语
+doing+其他？
以when和while引导的时间状语从句
1.延续性动词和非延续性动词
延续性动词指动作可以延续一段时间, 而不是瞬间结束。
如: work、study、drink、eat等。
非延续性动词指动作极为短暂，瞬间结束。
如: start、begin、hit、jump、knock等。
2.在本单元中，出现了以when和while引导的时间状语从句。
when表示“当……的时候”。从句中既可用延续性动词，又可用非延续性动词，这些动词既可以表示动作，又可表示状态。从句中动作既可和主句的动作同时发生，又可在主句的动作之前或之后发生。
如：
Mary was having dinner when I saw her.
The boy was still sleeping when his mother got
home yesterday morning.
3.while表示“在……的时候”、“在……期间”。
它强调主句的动作与从句的动作同时发生或主句的动作发生在从句的动作过程中。While从句中必须是表示动作或状态的延续性动词。
如：
The weather was fine while we were in Beijing.
She called while I was out.
现在分词的构成
1.一般动词在词尾加-ing，如go—going
2.以不发音字母e结尾的动词, 先去掉e, 再加-ing
come — coming make — making write — writing
3.以重读闭音节结尾的动词，如果末尾以一个辅
字母结尾，应先双写这个字母，再加ing，x和w结尾
的除外。
get — getting swim — swimming show — showing
4.以字母y结尾的单词，直接加ing。如：
carrying playing studying
5.以字母ie结尾的动词，变ie为y，再加ing。
die → dying lie →lying
6.以元音字母加e结尾，或以e结尾，且e发音的动词，
直接加- ing。
see — seeing be — being
使用进行时态的注意事项
1.一些动词，如see, hear, love, like, know,remember, understand, have等表示感情、知觉
和状态的词，一般不用于进行时态。
2.在there和here引起的句子中，常用一般现在时 代替现在进行时。
如：Here comes the bus.
There goes the bell.
一般过去时态、现在进行时与过去进行时的比较：
(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。
例句：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)
(2)现在进行时表示某一动作正在发生。
例句：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。
例句：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)
4a
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
While John was taking photos, Mary bought a drink.
John was taking photos when Mary bought a drink.
While John was playing the piano, Mary left the house.
John was playing the piano when Mary left the house.
4b
At 7:00 a.m., I woke up. ________ I ______ making my breakfast, my brother _______ listening to the radio. ______ I was eating, the radio news talked about a car accident near our home. My brother and I went out right away to have a look. _______ we got to the place of the accident, the car ______ in bad shape from hitting a tree. But luckily, the driver ______ fine. The roads ______ icy because of the heavy snow from the night before.
While
was
was
While
When
was
was
were
Fill in the blanks with was, were, when or while.
4c
What were you doing at these times last Sunday Fill in the chart. Then ask your partner.
You Your partner
9:00 a.m.
11:00 a.m.
4:00 p.m.
9:00 p.m.
情景表演
What were you doing at nine o’clock
last Sunday morning
I was sleeping. How about you
A: I was doing my homework.
B: You’re kidding!
随堂练习
Ⅰ .根据句意及汉语提示完成句子。
1．Don't ____(欺骗) yourself.It won't be easy.
2．____(结冰的) roads are dangerous.
kid
Icy
3.当飞机起飞的时候, 天正下着大雪。
It _______________heavily when the plane ____________.
took off
was snowing
4. 瞧, 孩子们正在追逐一只小猫。
Look! The children ___________________ a small cat.
5.我女儿正在写信时, 其他的孩子都在外面玩耍。
My daughter was writing a letter ________the other children ___________________outside.
were playing
are chasing after
while
1. 昨天早上9点钟你在干什么
2. 不明飞行物起飞时，小明正在骑自行车。
3. 那时，他们正在做家庭作业。
What were you doing at 9 o’clock yesterday morning
They were doing their homework at that time.
Ⅱ.翻译。
Xiao Ming was riding his bike when the UFO took off.
4.今早给你打电话的时候, 你正在干什么？
What were you doing when I called you up this morning
5.当他正睡觉的时候他梦见了UFO。
While he was sleeping, he dreamed about UFO.
6. 当李雷在吃早饭时,吉姆进来了。
While Li Lei was having breakfast, Jim came in.