文档介绍：It was snowy. The road was icy.
A car was hitting a tree. The car was in bad shape.
Look at the picture:
—What was the weather like?
— 
—What happened?
— 
想一想:当我们在描述一个过去的事件时,会运用哪些时态呢?
★探究一
1. 看4a中的表格,判断John与Mary的动作是延续性的还是非延续性的。
2. 小组讨论并归纳: 和都表示“当……时”; 用于过去进行时,只与延续性动作连用; 用于一般过去时,与非延续性动作连用。
while
when
while
when
★探究二
1. 完成4b,用was, were, when或while填空。
提示:was用于单数,were用于复数,when后接一般过去时,while后接过去进行时。
2. 根据文章事件发生的先后顺序,将序号填在流程图中。
①made breakfast ②ate ③went out
④listened to the radio ⑤got to the place
⑥talked about a car accident
⑦saw car in bad shape
★探究三
1. 想一想上周日自己做了什么,完成课文4c中的表格中第一栏的信息。(注意用过去进行时)
2. 问你的搭档做了什么,记录下来,完成表格第二栏的信息。
I: What were you doing at 9:00 .?
Partner: I was doing homework. How about you?
I: I was sleeping.
注意:画线部分可以被替换。
3. 根据表格填空的信息,写一个报告。你可以这样开始:
Last Sunday, while I was sleeping, my partner... was doing homework. While I was...
过去进行时的含义与用法小结
1. 含义:表示在过去某一时刻或某一段时间内进行或发生的动作。
(1) 肯定句:主语+was/were+doing+其他
如:I was watching TV. 我在看电视。
(2) 否定句:主语+was/were+not+doing+其他
如:I was not watch