1. Learning tasks "示标定向"。

1）学习并掌握下列单词：icy, kid

2）能正确使用以下常用表达：

because of, have a look, car accident, turn on the house

3）能熟练掌握并使用下列重点句式：

(1）While I was making my breakfast, my brother was listening to the radio.

(2）When we got to the place of the accident, the car was in bad shape from hitting a tree.

(3) The road was icy because of the heavy snow from the night before.

4）学会过去进行时态的构成和用法。

2. Leading-in"导入新课"

Let the Ss read Grammar Focus quickly and find the rules:

1) 过去进行时的用法

(1) 过去进行时的构成：was/ were doing

(2) 过去进行时表示在过去某一时刻或某一段时间正在进行的动作。

(3) Make a comparison between the two tenses.

时态 现在进行时 过去进行时 用法 表示现在正在进行的动作 表示过去某个时刻正在进行的动作 结构 is/am/are + doing was/were + doing 例句 I am having an English class I was having an English class. 2) 探究when 与while的区别

观察表格中的句子，探究when 与while的区别：

when和while都表示"当......时候"的意思，其中when引导的时间状语从句的动作不延续，常用一般过去时态，while引导的时间状语从句的动作延续，常用过去进行时态。

I was doing my homework last night when itrained.

The bell rang while Mom was listeningto music. 1. 2a Look at the table and write sentences with both while and when.

(2) While John was playing the piano, Mary left the house.

John was playing the piano when Mary left the house.

(3) While John was cleaning his room, Mary turned on the radio.

John was cleaning his room when Mary turned on the radio.

(4) While John was shopping, Mary took the car to the car wash.

John was shopping when Mary took the car to the car wash. 1. 4b

1）Fill in the blanks with was, were, when or while.

Answers: While, was, was, While, When, was, was, were

2）Read the passage carefully and retell it in pairs.

2. 4c What were you doing at these times last Sunday? Fill in the chart. Then ask your partner.

I was playing the violin at 9:00.

What were you doing at that time?

You Your partner 9:00 a.m. 11:30 a.m. 4:00 p.m. 9:00 p.m.