大学视听英语PDF电子书下载

UNIT ONE 1

UNIT TWO 7

UNIT THREE 15

UNIT FOUR 22

UNIT FIVE 27

UNIT SIX 34

UNIT SEVEN 39

UNIT EIGHT 46

UNIT NINE 51

UNIT TEN 57

UNIT ELEVEN 62

UNIT TWELVE 68

UNIT THIRTEEN 74

UNIT FOURTEEN 81

UNIT FIFTEEN 86

UNIT SIXTEEN 93

UNIT SEVENTEEN 102

UNIT EIGHTEEN 111

UNIT NINETEEN 121

UNIT TWENTY 129

EXERCISES 139

SCRIPT FOR EXERCISES 163

KEYS TO EXERCISES 198