Unit 5 What were you doing when the rainstorm came? Section B课件 (共10张PPT)

(共10张PPT)
课题：What were you doing when the rainstorm came？
难点名称：when ∕while引导的时间状语从句过去进行时的使用
八年级英语下册第五单元Grammar Focu
目录
导入
…
知识讲解
课堂练习
小结
What were you doing at eight last night？
I was doing my homework at eight last night.
导入
今天早上8点半你正在做什么？
What were you doing at 8:30 this morning
当我打电话给他时，他正在吃饭。
When I called him , he was having dinner .
过去进行时的用法
课堂讲解
过去进行时的用法：
你昨天7点到9点在做什么？
What were you doing from seven to nine
yesterday
我昨天整个早上都在看书。
I was reading the whole morning yesterday .
课堂讲解
.
when ∕while 引导的时间状语从句，过去进行时的使用
When he woke up in the morning,the sun
(rise) in the east.
While we (swim)，someone
stole our clothes .
Mary (have) dinner when I saw her .
was having
was rising
were swimming
难点突破
when ∕while 引导的时间状语从句过去进行时的使用：
While I (talk), the teacher came
into the classroom.
.
was talking
While引导的从句（was/were doing）,主句(did)或（was/were doing)。
when引导的从句（did），主句(was/were+doing).
难点突破
练一练
1. What you (do) at eight last night
I (take) a shower.
2. He (read) when the rainstorm came.
3. John (take) photos when Mary
(buy) a drink.
doing
was taking
was reading
was taking
bought
were
Practice
4. While John (take) photos， Mary
(buy) a drink
5. I (watch) Tv While Tom
(clean) his room.
bought
was taking
was watching
was cleaning
summary 过去进行时的运用：
（1）过去某一时刻正在进行的动作。
( 2 ) 过去某段时间正在进行的动作。
（3）When引导的时间状语从句，从句用过去时，主句用过去进行时。
（4）While引导的时间状语从句，从句用过去
进行时态，主句用 过去时或过去进行时。