的方式操练单词。
教师边说：go cycling边模仿骑车的动作，骑到某个学生面前模拟将自行车交给这位学生，这位学生接过自行车后接着模仿骑车的动作说：go cycling，依次类推，全班接力说词组。游戏结束，教师板书：go cycling，全班边模拟骑车的动作边读词组。 2．教学单词badminton
教师出示羽毛球拍问学生：Do you like badminton? Can you play badminton?教师板书：badminton，play badminton，教师先分音节带读单词，然后引导全班齐读单词，再比一比谁最快记住这个单词。教师边挥动羽毛球拍边说：play badminton，然后教师将球拍交给学生，让学生也边挥拍边说词组。 3．教学单词ice-skate
教师出示冰鞋的图片问：Can you ice-skate?学生回答：Yes，I can．(No，I can' t.)教师板书：ice-skate，用升降调带读单词，全班拼读记忆单词ice-skate。
4．教学句子I didn't like winter before.I thought it was too cold，and I couldn-t go cycling. 教师提问：Which season do you like best? Why?学生回答后，教师说：I like winter. But I didn't like winter before.I thought it was too cold, and I couldn't go cycling.板书：But I didn't like winter before.I thought it was too cold, and I couldn't go cycling.眚诉学生：thought是think的过去式，could是can的过去式。最后让学生说说这两句话的意思，引导全班齐读句子。
5．教学句子：How about now? Now I love to ice-skate and play in the snow.
教师：I didn-t like winter before. How about now? Guess，please.学生发言后教师说：Now I like winter.I love to ice-skate and play in the snow.教师板书句子：How about now? Now I love to ice-skate and play in the snow.全班齐读句子。 6．教学B．Let -s learn
(1)教师播放课文录音，全班静听，理解课文。
(2)再次播放B．Let's learn的课文录音，学生边听边跟读。 (2)学生两人一组表演对话。
四、巩固与拓展（Consolidation and extension） 教学Listen，match and say (1)学生独立观察图片。
(2)教师播放录音，学生听音连线。 (3)全班讲评订正。
(4)请学生根据范例，看图说句子。 五、家庭作业（Homework） 1．听录音，跟读单词。 2．完成活动手册配套练习。
3．用英文与朋友或家人谈论自己喜好的变化。
板书设计
Unit 4 Then and now
go cycling ice-skate play badminton I didn-t like winter before. I thought it was too cold, and I couldn-t go cycling. How about now?
Now I love to ice-skate and play in the snow.
第四课时
课时目标
1．能听、说、读、写句子：Before，1 was quiet. Now，I'm very active in class.1 was short，so I couldn-t ride my bike well．Now，I go cycling every day.并能在实际的情境中运用。 2．能听、说、认读单词：different，active。 3．听懂、会说本课中的对话，并能在情境中运用。
教学重难点
1．重点：能听、说、读、写句子：Before，1 was quiet. Now，I-m very active in class.1 was short，so I couldn't ride my bike well. Now，I go cycling every day.并能在实际的情境中运用。 2．难点：掌握different的发音。
媒体链接
1．单词卡片。 2．录音机和磁带。 3．课文挂图和配套VCD。
教学过程
一、热身（Warm-up） 1．师生问好。
2. Sing the song Changes in me. 二、复习（Revision)
1．Play a game:演一演，猜一猜
活动方式：教师将football，basketball，ping-pong，hiking，badminton，iceskate，cycling，kungfu等运动类单词卡片面期下放在桌上。每组请一名学生上台抽取一张卡片，并用动作表演卡片上的运动，同组的其他学生根据表演猜运动名称。比一比哪组猜中的单词多。
2．抽读已学过的运动类单词并拼读：football，basketball，ping-pong，hiking，badminton, ice-skate,
cycling, kungfu…
3．活动：My favorite sport
活动方式：学生两人一组，就所喜欢的运动项目进行问答，然后请两、三组同学到台前表演。如：
Sl: Do you like ping-pong? S2:1 liked it three years ago. Sl: How about now?
S2: Now I like playing basketball. It -s very interesting. How about you? iSl:1 liked badminton then, but now I like cycling. 三、新课呈现（Presentation） 1．教学单词different
教师出示自己小时候的照片，问：Who's she? Guess, please.学生猜测后，教师说：This is me. At that time, my hair was short and my face was big. I-m different now.l think you are all different now.板书：different，让学生说说它的意思。教师分音节带读单词，最后用“大小声”操练单词。 2．教学单词active和句子Before,1 was quiet. Now, I'm very active in class.
教师提出一个简单的问题，全班踊跃举手时教师表扬：You are all active now.板书：active，让学生说说单词的意思，然后师带读单词。教师提问：Who is active in our class?学生发言后，教师指着其中的一位学生说：Before,A was quiet. Now, she/he-s very active in class. Good girl/boy!然后教师让这位学生来说说自己的变化：Before,1 was quiet. Now, I-m very active in class.教师板书：Before,1 was quiet.Now, I-m very active in class.全班齐读句子。最后请学生模仿这一句型说说自己的 不同。
3．教学句子1 was short, so I couldn-t ride my bike well. Now,I go cycling every day.
教师介绍：I like cycling very much.I go cycling every day. But when l was young,1 was short, so I couldn't ride my bike well.教师板书：1 was short, so I couldn't ride my bike well. Now,I go cycling every day.然后带读句子。最后让学生模仿这一句型说说自己的不同。如：