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2. different的发音较难。
教学过程
Step 1 Warm-up
1. Free talk
Hello, boys and girls. Nice to meet you…
I say you say (卡片出示单词复习动词过去式）
Let’s play a game.
Step 2 Presentation
教学different.
出示自己小时候的照片，T: Look these photos. It is me. Now I am different. All of you are different now.板书different,请学生跟读。
2.课件图片出示粉色，T：Before,I liked pink. Now, I don’t like pink. 教师拿出准备好的彩色转盘，让学生转动来练说句子,Before, I liked …和Now, I don’t like…引出句子We are all different now.师领读句子。
4.出示姚明的对比照，说一说Before and now 的不同，练说句子例如：I was short, so I couldn’t play basketball well. Now, I play it every day.
5.看图片John对比教学quiet 和active.Before,he was quiet.Now,he is very active.
6.看图John讲授句子，注意go cycling读音。板书句子：I was short, so I couldn’t ride my bike well. Now, I go cycling every day.
7.Let’s try 播放录音，学生做题，指生回答,核对答案。
8.Let’s talk 看视频认知课文，示范读，学生跟读，分角色朗读。
9.完成课文。说一说John and Mike 的不同。
Step 3 Practice
小练笔
Talk about changes.（谈论自己或朋友）
Step 4 小结
What did you learn ?
Step 5 Homework
板书设计：
Unit4 Then and now
Before, I was quiet.
Now, I’m very active in class.
I was short, so I couldn’t ride my bike well. Now, I go cycling every day.