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1. 教学重点：
1）用英语介绍某一发明的简要过程。
2）掌握本单元所学的词汇、句型及语法知识，并能进行综合练习运用。
3）完成Self check部分的练习试题。
2. 教学难点：
过去时的被动语态.
三、教学过程
Ⅰ. Revision
1. Review the expressions and sentences in Section A 1.a
2. Check the homework.
Let Ss introduce the history of basketball.
Ⅱ. Lead in
1 Ask and answer When was it invented?
2Pratice in pairs .
3 Let some Ss talk about their favorite inventions.
Ⅲ. Thinking
1. Ask Ss what things they don’t like to do.
e.g. Problem: quickly taking notes in class.
2. Discuss in group and think of an invention that could help you.
e.g. New invention: a special pen
What it is used for： taking notes quickly in class
3. Ss discussing the problems and try to make their own notes.
4. Let some Ss read their notes to the class.
Ⅳ. Writing
Work on 3b:
1. Tell Ss to write a description of your new invention.
2. The following sentence structure may help you.
常用句型：
① I think … is a very useful invention.
我认为……是一项很有用的发明。