Unit 1 A trip to the theatre 1
Unit 2 Great minds 18
Unit 3 Plants 34
Mid-term Examination(A) 49
Mid-term Examination(B) 59
Unit 4 Creatures large and small 70
Unit 5 Problems and advice 85
Unit 6 A variety of viewpoints 100
End-term Examination(A) 115
End-term Examination(B) 123
Tapescripts 133
Keys 151