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一、明确考纲1.知道蛋白质、糖类、油脂、维生素、无机盐和水是维持人类生存的营养素,并能够说出常见的食物中为人类所提供的主要营养素。2.知道钙、铁、锌、碘等元素对人体健康的重要作用。3.能区分有机物和无机物,能区分生活中常见的天然材料与合成材料,并初步了解合成材料对人类生存环境的影响。4.知道具有热塑性及热固性的高分子材料的用途。5.初步认识新材料的开发与社会发展的密切关系。
A clear test outline 1. Know that protein, carbohydrates, fats, vitamins, inorganic salts and water are nutrients that sustain human beings, and can tell the common nutrients for the human body to provide the main nutrients. 2. Know that calcium, iron, zinc, iodine and other elements of human health important role. 3. Can distinguish between organic and inorganic, can distinguish between common natural materials and synthetic materials, and preliminary understanding of synthetic materials on human living environment. 4. Know the use of thermoplastic and thermoset polymer materials. 5 preliminary understanding of the development of new materials and the close relationship between social development.