训练目标:分析段落作用,概括文章内容,理解语言特点,分析说明方法。牛奶颜色发白是因为抗生素吗?范志红(1)一些朋友常常会问:一直不理解,为什么国内牛奶的颜色是雪白雪白的,而进口牛奶的颜色是泛黄的,有点类似豆浆?人类的母乳不也是泛黄的吗?可否以此类推,奶牛的乳汁也应该是泛黄的?国内奶牛是打了抗生素才变成这样的吗?(2)牛奶、羊奶、水牛奶、骆驼奶,它们整体上都是白的,但为什么是白色呢?这是乳化作用所致。牛奶里有87%以上的 Training Objectives: Analysis of the role of paragraphs, summarizing the contents of the article, to understand the characteristics of language, analysis methods. Fan Zhihong (1) Some friends often ask: Do not understand why the color of the domestic milk is white and white, while the color of imported milk is yellowed, a bit similar to soy milk, human milk Is it also yellowing? Can the milk of dairy cows should also be yellowed by analogy? Do domestic dairy cows have antibiotics? (2) Milk, goat milk, milk water, camel milk, The whole is white, but why is it white? This is due to emulsification. More than 87% of milk