第3单元副页-1.doc

舒兰市第十九中学校教学设计用纸副页（1）
教 学 导 航
3

教学过程

3

教学过程

3

教学过程

一、自学导航：
1.温故知新 小组讨论有关UFO 的知识
2.词组barber shop get out 起飞
in front of the library sleep late 做晚餐
cut hair Museum of Flight get out of the UFO
3.预习语法 过去进行时
4. What were you doing when the UFO arrived ? I was sitting in the barber's chair .

4.The girl was shopping when the alien got out.
While the girl was shopping ,the alien got out.。

5.The boy was walking down the street when the UFO landed.
While the boy was walking down the street , the UFO landed.

二、内容讲解
（1）精讲预设：
过去进行时：表示在过去某一时间内正在进行的动作。
构成：was / were + 现在分词（其中was是am、is的过去式，were是are的过去式）
e.g. I was doing my homework then . 那时，我正在做作业。
用法：1）过去进行时表现过去某一时刻正在进行的动作。
e.g. She was writing a letter when I came in .我进来时，她正在写封信。
2）过去进行时还表示过去某阶段正在进行的动作。
e.g. They were waiting for you yesterday .他们昨天一直在等你。
★过去进行时与一般过去时的区别；
过去进行时：表示正在进行的动作。
I was reading a novel last night.昨晚我在看小说。（可能还没有看完）
一般过去时：表示一个完成的动作。
I read a novel last night .昨晚我看了一本小说。（已经看完了）
以when和while引导的时间状语从句
1）延续性动词指动作可以延续一段时间，而不是瞬间结束。如：work,study,drink,eat等。
2）非延续性动词指动作极为短暂，瞬间结束。如：start,begin,arrive,jump,go, finish,borrow,knock等。
★ when表示“当……的时候”。它后面既可跟延续性动词，又可跟非延续性动词.
如：Mary was having dinner when I saw her .(当我看到玛丽的时候,她正在吃饭.)
★ while表示“在……的时候”、“在……期间”。while后面必须是表示动作或状态的延续性动词。
如：The weather was fine while we were in Beijing .(当我们在北京的时候天气很好.)
所以,  when可指时间点，又可指时间段，从句中可用延续性动词，也可用非延续性动词。
while总是指一个时间段，从句中必须用延续性动词。
学习过程：
1.小组合作看图1a ，讲故事。谈论图中发生的故事。
2.小组合作完成1a 。
3.听力提高，认真听录音完成1b/2a/2b , 复述重点句型，理解熟记词汇句型。
（2）资源延伸：

1.当堂检测与辅导
①基础达标
用所给单词的适当形式填空
1.Mary ofen ______up at six o'clock. But she _______(not get)up at this time yesterday.
  2.When I came in, Alice _________(lie)in bed.
  3.________(not be) late again. Please get to school on time.
  4.The plane__________(take off) a five minutes ago. 
  5.While the reporter_________(take) a photo, the cat climbed the tree again . 
②能力提高
用while或when 填空
1.The girl was shopping ________the alien got out.
 2.______ the  girl was shopping ,the alien got out.
 3.I was doing my homework ________my mother came in.
  4.______I was doing my homework ,my mother came in.
 5.He called to see me  _________I was looking for my bag.
  6.________we were talking ,Dad got home.
 7.________I was sitting in the barber's chair , my friend phoned me.　　　
  8.The Greens were having dinner ________ I visited them.
 9.What did you do ________ the UFO landed?
  10. I arrived at the airport , the plane was taking off.
2. 作业