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二年级科学上册1.6不同的季节课件教科版.ppt

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6.不同的季节,思考并交流,在不同的季节，我们的地球家园发生了哪些变化？,挑战拼贴四季变化图,根据课前收集的有关四季的资料，完成“拼贴一张四季变化图”。,全班交流四季图,说说选择相应词语的原因。,小组共享资料并讨论,季节的变化对动植物和人的影响,小结,季节的变化会对动物、植物和人类产生有利影响和不利影响，季节的变化与动植物以及人类有着密切的联系。,拓展,课后收集秋季的叶和果实，制作一个“季节礼盒”。,

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