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3. Emotional aims: (optional)
鼓励学生要勤思考、有理想、争做未来的发明家。
4. Culture awareness: (optional)
了解其他国家的科技发明。
Ⅲ. The key points and difficult points
1. Key points:
Words and phrases: lock, metal, be made of, be made from, be made in, be used for, be allowed to do sth.
Sentences:What’s it made of?
It’s made from wood.
What’s it used for?
It’s used for locking the door.
I wish I could go into space some day.
I hope your dream will come true.
Grammar: was/were +pp
2. Difficult points：
be made of和be made from的用法辨析。
I wish I could go into space some day.
It’s used for writing on .
Ⅳ. Learning strategies
通过温习一般现在时的被动语态知一般过去时的被动语态，实现从一般现在时的被动语态到一般过去时的被动语态的转换。
通过联系生活实践，来区分be made of和be made from。
在交流中，重在表意，不要担心出错。
Ⅴ. Teaching aids
有关新词的图片/实物（如：数码相机,锁）/录音机/小黑板/PPT。
Ⅵ. Teaching procedures
Stage
(time period)
Interaction
patterns
Teacher activity