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能掌握并运用本节课的核心句型They were very young. 来进行描述过去的事情和状态。
?四、教学难点：
谈论生活的中的过去与现在的不同变化。
五、教学方法：
主要以“任务型”教学法为主，采用活动途径操练应用新句型。
六、教学工具：
教学光盘，课件，卡纸，单词卡。
七、教学过程：
Step?1.Warming?up.（热身）
1. Greeting.
Class begins. Stand up. Good morning. How are you? I’m fine, thanks. Let’s sing a chant.
2. There are many animals in this chant. Someone is naughty, someone is lazy. Look at the next animal. What’s it like ? It’s beautiful . earn the word “beautiful”. Bob and Kitty are also wathcing a beautiful butterfly . How do they say ? Let’ s watch it.
3. CAI 展示蝴蝶的由幼虫变成成虫的过程。只要努力你们也可以变得越来越美丽！付出就会有收获！
Step 2.Presentation.（呈现新课）
1. (CAI)Show a photo. Look at this photo. This is my daughter. Look at her hair. It was short then. Now it is long. Learn “hair” . The next photo. Who are they ? Let’s watch it.
2. They are Lingling’s grandparents. Learn“grandparent” 出示之前和现在的照片 What’s the difference? Learn the word “young” 对比“old”
3. 这节课我们就来学习如何对比之前与现在的不同。出示课题。
Step?3. Text learning.(课文学习)
1.Listen ,point and circle “was, were.” Where are they ?学生说出含有was 和were的句子。Teacher write them on the board : They were very young then. Now they are old. Your hair was very short then. Now it’s long. 表现好的小组可以得到图片奖励。
2. Listen and repeat . Then pracitse the dialogue.
3. Read the dialogue in roles.
情感教育渗透：每天都在发生着不同的变化，有些变化是我们无法改变的，所以我们要珍惜我们现在拥有的一切！
Step 4.Finish the task.（任务完成）
Look and circle.
根据课文内容圈一圈。（反馈学生对课文的掌握情况）
Show me your pictures. Turn over. There is a world “then” or “now”. Use them to say a sentence.
There is a film about changing . 观看“变化的世界”视频。我们的世界每天都发生着变化，我们身边的一切也都在变化着。包括我们的家人，我们的父母，他们会变老，你们也会长大。所以我们要珍惜现在的时光，不浪费，让每一天都有所收获！
Summary : What did you learn this lesson?
Step5 Homework.
1.必做：听音模仿课文3遍。