大学英语新读物 3PDF电子书下载

Lesson One 1

Exercises 8

Key for Reference 11

Lesson Two 13

Exercises 18

Key for Reference 21

Lesson Three 23

Exercises 27

Key for Reference 31

Lesson Four 33

Exercises 39

Key for Reference 42

Lesson Five 44

Exercises 49

Key for Reference 52

Lesson Six 54

Exercises 58

Key for Reference 61

Lesson Seven 63

Exercises 70

Key for Reference 73

Lesson Eight 75

Exercises 80

Key for Reference 83

Lesson Nine 85

Exercises 89

Key for Reference 92

Lesson Ten 94

Exercises 100

Key for Reference 103

Lesson Eleven 105

Exercises 114

Key for Reference 117

Lesson Twelve 119

Exercises 124

Key for Reference 127

Lesson Thirteen 129

Exercises 135

Key for Reference 139

Lesson Fourteen 141

Exercises 148

Key for Reference 151

Lesson Fifteen 153

Exercises 162

Key for Reference 165

Lesson Sixteen 167

Exercises 174

Key for Reference 178

Lesson Seventeen 180

Exercises 185

Key for Reference 189

Lesson Eighteen 191

Exercises 198

Key for Reference 202

Lesson Nineteen 204

Exercises 216

Key for Reference 220

Lesson Twenty 223

Exercises 229

Key for Reference 233