前言 2
EXERCISES 2
UNIT ONE Text-related Exercises 2
PRETCO Exercises 8
UNIT TWO Text-related Exercises 16
PRETCO Exercises 22
UNIT THREE Text-related Exercises 30
PRETCO Exercises 36
UNIT FOUR Text-related Exercises 44
PRETCO Exercises 50
UNIT FIVE Text-related Exercises 58
PRETCO Exercises 64
UNIT SIX Text-related Exercises 72
PRETCO Exercises 78
UNIT SEVEN Text-related Exercises 86
PRETCO Exercises 92
UNIT EIGHT Text-related Exercises 100
PRETCO Exercises 107
KEYS and Listening Materials 115
UNIT ONE 115
UNIT TWO 119
UNIT THREE 124
UNIT FOUR 128
UNIT FIVE 133
UNIT SIX 137
UNIT SEVEN 142
UNIT EIGHT 147