人教新目标(Go for it)版八年级下Unit 5 What were you doing when the rainstorm came?过去进行时课件(19张ppt)

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名称 人教新目标(Go for it)版八年级下Unit 5 What were you doing when the rainstorm came?过去进行时课件(19张ppt)
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版本资源 人教新目标(Go for it)版
科目 英语
更新时间 2022-03-28 00:41:59

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(共19张PPT)
Unit5 What were you doing when the rainstorm came
难点名称:过去进行时
八年级下册第五单元
导入
01
知识讲解
02
课堂练习
03
小结
04
目 录/contents
01
02
03
学习目标
掌握过去进行时的概念及结构
掌握过去进行时的用法
正确使用连词when和while
I posted a notice on the WeChat
group at 9:00 pm last night, but 3 students didn’t reply. What were they doing then
Tom: I was watching TV at 9:00 pm last night.
Jerry: I was playing computer at that time.
Lily: I was taking a bath when you posted a notice.
过去进行时(Past continuous tense)
表示过去在某一时刻或某一段时间内正在进行的动作或存在的状态。
定义
结构
主语+be(was/were)+动词的现在分词
I was cooking at 8:00 pm yesterday.
过去进行时的用法
表示过去某一时刻正在进行的动作:
eg. I was drawing at that time yesterday.
表示过去某一时间段内正在进行的动作:
eg. I was reading last night.
表示一个动作发生时,另一个动作正在进行:
eg. When my mum came home, I was sleeping.
表示一个动作正在进行,另一个动作突然发生:
eg. When I was walking, it rained.
表示两个动作同时进行.
eg.While I was sweeping the floor , she was cooking,
时间状语标志:
at this (that)time +过去时间
at +过去时间点
those days
from ...to ...+过去时间
when/while 引导的时间状语从句
when和while使用时到底有什么区别呢?
When和while的区别
When I arrived at home, my mum was cooking.
主句的动作时持续的,而从句的动作是短暂的,此时用_________引导时间状语从句,主句用_________时态,从句用________时态。
when
过去进行
一般过去
主句
从句
短暂性动词(短动作)
延续性动词
(长动作)
When和while的区别
2. I arrived at home while my mum was cooking.
主句的动作是短暂性的,从句的动作是持续性的,此时用___________引导从句,主句用_________时态,从句用__________时态。
while
一般过去
过去进行
从句
主句
When和while的区别
3.I was watching TV while my mother was cooking.
主句和从句的动作在过去的某时刻或某时段同时发生,而且动作都是持续性的,此时用________引导从句,并且主句和从句都用___________时态。
while
过去进行
主句
从句
长动作
长动作
当过去的两个动作同时发生,有长有短
长动作(延续性动词)----过去进行时
短动作(非延续性动词)-----一般过去时
when —长和短 while —长
When和while的区别
例外:
两个长动作用while
口诀:长过进
短一过
When I arrived at home, my mum was cooking.
2. I arrived at home while my mum was cooking.
I arrived at home when my mum was cooking.
3.I was watching TV while my mother was cooking.
巩固练习
2.Sally took a photo of her friends while they ________ computer games.
A.play B. are playing C.have played D. were playing
1.— I saw the light of your room was still on at two o’clock last night.
— Oh, I _____ a football match of the Russia World Cup.
A. watched B. was watched C.am watching D. was watching
时态题做题方法:
1. 找时间标志词
2. 确定所用时态
3. 若没有时间标志词,根据语境判断
3. _________ I arrived at the airport , the plane was taking off. (when/while)
When
巩固练习
4.He fell asleep __________ he was reading. (when/while)
while
Summary 小结
过去进行时(Past continuous tense)
表示在过去某一时刻或某一段时间内正在进行的动作或存在的状态。
定义:
结构:_________________________________
(was用于___________, were用于_________和_____)
时间状语:____________________________
_____________________________
___________________________________
_______________________________
主语+be(was/were)+动词的现在分词
单数主语
复数主语 you
at+具体时间点+一般过去时时间状语
at that time/at this time
when/while引导的时间状语从句
then
Summary 小结
过去进行时的用法:
(1)表示过去某一时刻正在进行的动作。
(2)表示一个过去的动作发生时,另一个过去的动作正在进行。(也表示一个动作正在进行,另一个动作突然发生)
(3)表示两个过去的动作同时进行,这时可用while连接。
Summary 小结
When和while的三个句型。(延续与短暂性动词)
过去进行时+ when+ 一般过去时
(主) (从)
while+过去进行时,+ 一般过去时
(从) (主)
过去进行时+ while + 过去进行时
THANKS
谢谢聆听