Text AA Friend In Need Objectives Background Discussion Structure Study Need Language Study

成都信息工程大学（成都信工学院）：《大学英语》PPT教学课件（第四册）Unit4 America as a Collage

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一、生产函数的概念 1.定义 描述生产技术状况给定条件下，生产要素的投入量与最大产出量之间的物质数 量关系的函数式

Contents Teaching Objectives Background Information Text Organization Language Points

一、 Bacteria(细菌) 二、Archaea(远古细菌) 三、 Actinomycetes(放线菌) 四、Mycoplasma(支原体) 五、Rickettsia(立克氏体) 六、Chlamydia(衣原体) 七、Cyanobacteria(篮细菌)

Contents Teaching Objectives Background Information Text Organization Language Points Discussion

Contents Teaching Objectives Background Information Text Organization Words and Expressions Grammatical Structures Discussion

Contents Teaching Objectives Background Information Text Organization Words and Expressions Grammatical Structures Questions