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第二课 呼吸与健康生活
https://www.29294.com/press/1343399608633794560/book/1343399419994972160/unit/1343399420468928512/class/1343399420557008896
第三课 测量肺活量
https://www.29294.com/press/1343399608633794560/book/1343399419994972160/unit/1343399420468928512/class/1343399420603146240
第四课 一天的食物
https://www.29294.com/press/1343399608633794560/book/1343399419994972160/unit/1343399420468928512/class/1343399420645089280
第五课 食物中的营养
https://www.29294.com/press/1343399608633794560/book/1343399419994972160/unit/1343399420468928512/class/1343399420695420928
第六课 让脑更健康(教材标题为:《营养要均衡》)
https://www.29294.com/press/1343399608633794560/book/1343399419994972160/unit/1343399420468928512/class/1343399420737363968
第七课 食物在口腔里的变化
https://www.29294.com/press/1343399608633794560/book/1343399419994972160/unit/1343399420468928512/class/1343399420783501312
第八课 食物在身体里的旅行
https://www.29294.com/press/1343399608633794560/book/1343399419994972160/unit/1343399420468928512/class/1343399420825444352
第三单元 运动和力
第一课 让小车运动起来
https://www.29294.com/press/1343399608633794560/book/1343399419994972160/unit/1343399420875776000/class/1343399420917719040
第二课 用气球驱动小车
https://www.29294.com/press/1343399608633794560/book/1343399419994972160/unit/1343399420875776000/class/1343399420963856384
第三课 用橡皮筋驱动小车
https://www.29294.com/press/1343399608633794560/book/1343399419994972160/unit/1343399420875776000/class/1343399421005799424