1.2.1铅垂线与大地水准面引力

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

分析市场结构以及完全竞争性厂商如何选择产量以使它的利润最大

Text A All the Cab Had Was a Letter Part 1 Objectives Part 2 Cultural Notes Part 3 Text Structure Part 4 Language Points Part Content Questions

Part 1 Objectives Part 2 Background Part 3 Text Organization Part 4 Language Study Part 5 Translation

Part 1 Objectives Part 2 Background Part 3 Text Organization Part 4 Structure Study Part 5 Language Points Part Translation

Part 1 ObjectivesPart Part 2 Background Part 3 Ddiscussion Part 4 Language Points Part Ccontent Questions Part 6 Translation

Part 1 Objectives Part 2 Discussion Part 3 Background Part 4 Structure Study Part 5 Language points Part 6 Content Questions

Text A Tony Trivisonno's American Dream Part 1 Obiectives Part Discussion Questions Part3 Background Part 4 Text Structure Part Lanquage Points