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保护与复育

六年级科学

5.1.1 解释后举例已绝种的动物。
5.1.2 解释并举例濒临绝种的动物和植物。
5.1.3 举例后解释导致动物和植物濒临绝种的因素：
• * 人类的活动，如：伐木、捕猎、 开垦土地；
• * 自然灾害，如：水灾、地震、暴风；
* 污染，如：水源污染、土壤。
5.2.1 讲述保护和复原动物和植物的意思。
5.2.2 描述保护和复原动物和植物的方法。

保护与复育

六年级科学

5.1.1 解释后举例已绝种的动物。
5.1.2 解释并举例濒临绝种的动物和植物。
5.1.3 举例后解释导致动物和植物濒临绝种的因素：
• * 人类的活动，如：伐木、捕猎、 开垦土地；
• * 自然灾害，如：水灾、地震、暴风；
* 污染，如：水源污染、土壤。
5.2.1 讲述保护和复原动物和植物的意思。
5.2.2 描述保护和复原动物和植物的方法。

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