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学习能力：通过头脑风暴、思维导图、小组合作写作与分享的方式，在小组互评与教师点拨指导下，完成写作任务。
【学习重点】
用本节课所学的框架与词汇、句型，写一篇介绍发明物的文章，并通过小组互评完成写作任务。
【学习难点】
总结描述发明物的表达方式。
教学过程：
Procedures
Teacher’s activities
Ss’ activities
purpose
1. Lead-in
Create the chain situation that the smurfs just came to visit China and discover some great new inventions. Show the pictures and ask Ss to guess what the specific great inventions are and try to describe each of them. Note down what the Ss have expressed.
Guess and describe.
Arouse Ss’ interest and prepare the words for writing.
2. Summary for word use
Tell the Ss to summarize the part of speech of the words noted down in the previous part for invention description.
Summarize the rule.
Inspire Ss to summarize the part of speech of the words used.
3. Pre-writing
1. Create the chain situation that the smurfs decided to make a new invention—the flying car, and they shared their passage of the new invetion with Ss.
2. Help Ss analyze the structure of describing an invention.
3. Help Ss summarize some sentence patterns for the body part.
1. Think about the structure.
2. Summarize other sentence patterns for the body part.
Encourage Ss to use what they learnt and learn the structure of describing an invention.
4. While- writing
Create the chain situaiton that the smurfs want Ss to join the WICYS with them with the Ss’ own inventions
Group work : Ask Ss to write in groups according to the structure and sentence patterns prepared.
With the help of the structure and sentence patterns, complete an article to describe the inventions they designed and drew before class.
Encourage Ss to Practice writing according to what they analyzed and summarized.