过去进行时微课PPT

3. My brother to music while I ___.
A. was listening ,was dancing B. listened, danced
C. was listening , danced
D. listened, was dancing
创新微课
同学，下节再见
dance at 5 o’clock yesterday afternoon
He was dancing at 5 o’clock yesterday afternoon.
When&While The rabbit was jumping while the pig was dancing .
The boy was playing basketball when the teacher came in.
sth. ,主1语+ did sth.
as As +主语+was/were doing sth. ,主语+did sth.
注意事项
when= at /during that time,所以从句中的动 词通常用短暂性动词, 也可以用延续性动词。
while=during that time, 表示某一时间段内发 生的动作，因此，从 句谓语动词常用延续 性动词。
3.如果主要动作和背景动作都是延续的或同时发生的，那么主从句的动 词都可以用过去进行时。
While he was cleaning his car, I was cooking .(两个动作同时进行）
While he was waiting for the bus, he was reading a newspaper.（两个动作 都是延续的）。
=While the boy was playing basketball ,the teacher came in.
过去进行时的用法
句子结构 when 主语+ was /were doing
sth.+ when + 主语+ did sth.
while While+主语+was/were doing
创新微课
过去进行时的用法
Correct their mistakes
1
创新微课
过去进行时的用法
注意：When, while, as引导时间状语从句
注意主句、从句1 的时态搭配关系。 注意主句、从句的谓语动词延续性和短暂性。
创新微课
过去进行时的用法
考点链接
1. Mary ______ a dress when she cut her finger.
过去进行时的用法
过去进行时的用法
1.意义：表示过去某一时间点或某段时间内正在 进行的状态或动作。
2.构成：
1否定式
was/were +doing… was/were not +doing…
疑问式：
Was/Were ……doing…?
创新微课
过去进行时的用法
3.标志词： at this/that time yesterday at 9:00 last night from seven to nine last night ……was/were doing when….did….. while...was/were doing ...,....did.... …
as引导时间从句时， 相当于while，即后面 要接延续动词，一般 译成 “正当……,” “随 着……”。
创新微课
过去进行时的用法
1.如果表示一个动作或事件发生时,另一个动作或事件正在进行,可用 when和while 。过去进行时一般提供事情发生的背景”。
Mary was cutting up some bananas when I came in.
2.当从句中的谓语动词表示瞬间动作时,不可用while。
I was drawing the picture when my friend came.（这儿when不可用while）
He fnally fell 于while）
aleep
w1hen/while
the
wind
was
dying
down.（这儿when相当
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介词短语表示过去的 时间点
when和while引导的 从句
Let’s talk
cook a meal at this time yesterday
was He icnoogk
at this time yesterday.
Let’s talk
play football at four o’clock last Friday
was He ing play
football at four o’clock last Friday.
Let’s talk
ridቤተ መጻሕፍቲ ባይዱ a horse
at nine last Sunday
was He riding ride
a horse at nine last Sunday.
Let’s talk
A. makes
B. is making
C. was making
D. made
2.As/while she ___ the newspaper, Granny ______ asleep.
A. read； was falling
1
C. was reading；was falling
B. was reading；fell D. read; fell