(共17张PPT)
Unit 5
What were you doing
when the rainstorm came
Section A (Grammar focus-4c)
一、教学目标
1.复习总结过去进行时的用法。
2.过去进行时与一般过去时，过去进行时与现在进行时的区别
3.辨析：when/ while
二、教学重点及难点
1.复习总结过去进行时的用法。
2.过去进行时与一般过去时，过去进行时与现在进行时的区别
3.辨析：when/ while
Let’s enjoy the following song,discuss what tense is mentioned.
(讨论歌曲中包含什么时态)
进行时
现在进行时
过去进行时
含义:表示现在正在进行的动作
结构:is/am/are +动词ing
含义：表示过去某一时刻或某一段
时间正在进行的动作
结构：was/were +动词ing
标志词:now,at the moment
look,listen等
动词ing变化
①（直）直接加ing
②（去）以不发音结尾，去e，加ing
③（双）（辅元辅，双写最后一个辅音字母）
标志词:when,while,at the/that time of
在...时候
at eight last night ,at that moment,在那阵子/时刻
Grammar Focus:
填入正确时态
1 . —What ____ you _______at eight last night
—I ______ _______(take) a shower
2. –What ____ she _______ at the time of rainstorm
—She______ _______(do)her homework.
3. —What ____ he _____when the rainstorm ________(come)
—He ______ _______(read) in the library when the rainstorm came.
4. —What ____ Ben ______when it _______ to rain heavily
—When it began to rain, Ben ____ _____(help)his mom make dinner.
5 —What ___ Jenny ______ while Linda ____________(sleep)
—While Linda ________, Jenny ______ _____(help) Mary with math.
were doing
was taking
was doing
was doing
came
was reading
was doing
began
was helping
was sleeping
was helping
at eight last night
at the time of rainstorm
when
When
when
when
while
While
时间标志词
at … last night/week/month/year
at the time of…
at this time yesterday
at that moment
when 时间状语从句
while 时间主语从句
was doing
was doing
was sleeping
1.The girl was watching TV when the rainstorm came.
2.When it began to rain,Ben was helping his mom make dinner.
3.Sorry，I was out when you called me．
4.When the baby saw his mother,he finally stopped crying.
5.While the wife was shopping,the husband was sitting in the cafe.
6.While I was sleeping in my aunt's home,the dog was near my bed
语法探究1：观察下列句子，辨析when和while
相同:when和while均为连词,均可译为当…之时
不同:进行when do/did或do/didwhen do/did,与瞬间性动词连用
do/did while进行或进行while进行,与延续性动词连用,并用进行时
指动作极为短暂,瞬间结束。
如:start/begin/hit/jump/knock等
指动作可以延续一段时间,而不是瞬间结束.如:work/study/drink/eat等。
Fill in the blanks with when or while.
He was sleeping _____ it arrived.
______ he was sleeping, it arrived.
The boy was walking down the street ______ the storm came.
4. ______ the boy was walking down the street, the storm came.
5. The girl was shopping _____ the phone rang.
6. _______ the girl was shopping, the phone rang.
when
While
when
While
when
While
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.
While John was cleaning his room, Mary turned on the radio.
John was cleaning his room when Mary turned on the radio.
While John was shopping, Mary took the car to the car wash.
John was shopping when Mary took the car to the car wash.
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
延续性动词
短暂性动作
4a
Look at the table and write sentences with both while and when.
Fill in the blanks with was, were, when or while.
4b
While
was
was
While
When
was
was
were
be in bad shape 变形
icy结冰的
ice--icy
hit a tree
撞上了树
What were you doing at these times last Sunday Fill in the chart. Then ask your partner.
you Your partner
9:00 am
11:30 am
1:00 pm
4:00 pm
9:00 pm
4c
A: What were you doing at nine o’clock last Sunday morning
B: I was sleeping. How about you
A: I was doing my homework.
B: You’re kidding!
语法探究2：过去进行时和一般过去时的区别
区别：
1.过去进行时表示过去正在进行的动作,
2.一般过去时则表示一个完整的动作。
They ___________(write) letters to their friends at 9 last night.
They______(write)letters to their friends last night.
were writing
wrote
只表达了昨晚九点在写信，没有说明信是否写完。
表达了他们信已写好的意思, 整个写的过程已完成。
1. What ______ (be) you ______ (do) when he arrived
2. Jim __________ (sleep) when I came in.
3.They ____________ (watch) TV at 8:00
yesterday evening.
4. Now he __________ (read) and _______(write).
were
doing
was sleeping
were watching
is reading
writing
练一练：用所给词的正确形式填空
5. Mother _____________ (wash) clothes when
I _______ (get) home from school yesterday afternoon.
6. Look, my sister ____ (be) there in the barber
shop. The barber __________ (cut) her hair.
7. ---When ____ you _____ (see) the accident
---I _____ (see) it fifteen minutes ago.
was washing
got
is
is cutting
did
see
saw
1. _______ Jennifer was reading a magazine,
his sister was listening to the pop music.
A. While B. When C. What time
2. I was trying to draw a cat on the board
_________ the teacher came in.
A. while B. when C. what time
3. My best friend visited my house while I
_______ dinner in the kitchen.
A. cooked B. cooking C. was cooking
A
B
C
选择填空。
4. Sally took a photo of her friends while they ___ computer games.
A. play B. are playing C. have played D. were playing
5. Just a minute! My brother ___ his car in the garden.
A. washes B. is washing C. washed D. will wash
6. — Can Peter play games with us, Mrs. Hawking
—Wait a minute. He ___ a shower. [2013浙江绍兴]
A. is taking B. takes C. took D. was taking
7. My uncle _____ books in the room at this time yesterday.
A. was seeing B. is reading C. was reading
8. — I didn't see you at the meeting yesterday. Why
— I ___ for an important telephone call at that moment.
A. wait B. waited C. am waiting D. was waiting
9. Millie ____ a picture when Mr. Green came in.
A. draw B. will draw C. drew D. was drawing
10. I saw him in the library yesterday. He___ a book at that moment. [2013天津]
A. reads B. is reading C. was reading D. will read
11. — I called you yesterday evening, but nobody answered the phone. — Oh, I ____ a walk with my parents at that time. A. took B. was taking C. am taking D. take
Thank you for listening!
