Chapter 1 The Phantom of the Opera 1
Chapter 2 Two Geniuses 9
Chapter 3 The Weird World of Plants 17
Mid-term Examination(A) 25
Mid-term Examination(B) 33
Chapter 4 Job Hunter 41
Chapter 5 Points of View 49
Chapter 6 Friend or Enemy? 57
End-term Examination(A) 65
End-term Examination(B) 73
Tapescripts and Keys(learning focus included) 81