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一、复习导入１ 同学们 ,去年悉尼奥运会上 ,我国运动员夺得了２８枚金牌 ,一面面五星红旗不断在赛场上空升起（电脑演示）。大家说红旗是什么形状？（学生齐答 :长方形）再看小朋友们常用的手帕（电脑演示）是什么形状？（学生齐答 :正方形）２ 联系实际说说生活中你还见过哪
I. Review Import 1 Students At last year's Sydney Olympic Games, Chinese athletes won 28 gold medals, while five-star red flags kept rising over the stadium (a computer demonstration). What is the shape of the red flag? (Students Qi answer: rectangular) Look at children's handkerchiefs (computer demo) is what shape? (Students Qi answer: square) 2 contact with the actual talk about life you have seen where