老师：同学们大家好，欢迎来到北京市中小学空中课堂。我是来自北京市朝阳区芳草地国际学校甘露岩分校的蔡迎春老师。今天我们将一起学习外研版八年级上册瑞薇人 b 的第一课时。
学生：lets start our lesson。 It is winter in Beijing and it's really cold, right? But do you know that in some places in the world, it is still summer? And it was a nice day there yesterday.
学生：Look, at 9:00 yesterday morning, there were a lot of people in the park. What's what people doing at 9:00 yesterday morning? Yes, a man was walking his dog. These people were having a picnic. The father was playing football with his son. Some people were playing the guitar. Others were riding their bikes and they were all having fun.
老师：让我们把刚才的情境放到时间轴上来看看，如果这个点表示现在他前面的这个时间点表示。
学生：nine oclock yesterday morning。
老师：那么要表示在过去的这个时刻，人们在做不同的事情，就要说。
学生：at nine oclock yesterday morning people were doing different things in the park。
老师：你们知道这是什么时态吗？没错，这就是用 was war 加动词的 ING 形式表达的过去进行时。让我们一起回顾一下它的第一种用法。过去进行时表示过去某个时刻正在进行的动作。时间状语通常有 at 加具体时间加。
学生：last night。 At this or that moment last Sunday, at this or that time yesterday. Now let's do some exercises. Complete the sentences with the words in the box. Number one, I my homework at school at 4:30 yesterday.
老师：这个句子的时间状语是。
学生：at half past four yesterday。
老师：句意是在昨天 4 点半的时候，我正在学校里做作业，因此是过去进行时。 did 是动词。 do 的过去式要用在一般过去时中，所以答案是。
学生：i was doing my homework at school at half past four yesterday number two Lily a talk with li hua at that time last night。
老师：句子的时间状语是。
学生：at that time last night。
老师：表示在昨晚的那个时候， Lily 正在和李华谈话，也是过去进行时。
学生：Lily was having a talk with li hua at that time last night， number three what were they doing at nine thirty on Sunday morning， they a basketball match on tv。
老师：单从句子的时间状语。
学生：at nine thirty on Sunday morning。
老师：来看，似乎还不能确定是不是过去进行时。可是你有没有注意到， what they doing？这个特殊疑问句用的正是过去进行时。相应的，在回答中，我们也要用过去进行时。 watching 是现在进行时表示此时此刻正在做的事情。因此要说。
学生：they were watching a basketball match on tv。
老师：number four was he having a trip in Shanghai。
学生：at this time last week。
老师：这个句子是用过去进行时的。一般疑问句 was he having a trip。直接提问的，因此肯定回答，我们可以直接说， yes he was。那么如果是否定回答没错， no he wasnt。好，这就是过去进行时的第一种用法，你学会了吗？让我们再来看看他的其他用法。
学生：oh by the way， two old friends are visiting us who are they wow， do you still remember Alice look at picture what was Alice doing？ yes Alice was sitting with her sister by the river what happened when Alice was sitting with her sister by the river， a white rabbit with pink eyes run by then we can connect two sentences with when like this， when Alice was sitting with her sister by the river a white rabbit with pink eyes ran by or Alice was sitting with her sister by the river when a white rabbit with， pink eyes ran by。
老师：在这个句子中，当主句是过去进行时，从句是由问引导的。一般过去时的句子时可以表示当一个动作正在进行的时候，另一个动作突然发生了，强调后一个动作发生的突然性。
学生：oh here comes Henry what happened。 Yes. When Harry was working in a restaurant, a snak
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