Part Ⅲ 1
Tapescripts to Development Report （8 1
Contents 3
Development Report 3
Lesson 1 3
Part Ⅰ 3
Exercises 3
Lesson 2 5
Lesson 3 7
Lesson 4 9
Lesson 5 11
Lesson 6 13
Lesson 7 15
Lesson 8 17
Lesson 9 19
Lesson 10 21
Lesson 11 23
Lesson 12 25
Lesson 13 27
Lesson 14 29
Lesson 15 …………………………………………（31)Science ReportLesson 16 33
Lesson 17 35
Lesson 18 37
Lesson 19 39
Lesson 20 41
Lesson 21 …………………………………………（43)Lesson 22 45
Lesson 23 47
Lesson 24 49
Lesson 25 51
Lesson 26 53
Lesson 27 55
Lesson 28 57
Lesson 29 59
Lesson 30 61
Keys 63
Part Ⅱ 63
Tapescripts to Science Report 111
Part Ⅳ 141
Translation 141