大学英语四级考试 英语基本功训练 上PDF电子书下载

CONTENTS 1

前言 1

Unit One 1

Unit Two 10

Unit Three 21

Unit Four 31

Unit Five 42

Unit Six 52

Unit Seven 64

Unit Eight 76

Unit Nine 87

nit Ten 99

Unit Eleven 109

Unit Twelve 119

Unit Thirteen 132

Unit Fourteen 146

Unit Fifteen 157

Unit Sixteen 168

Unit Seventeen 179

Unit Eighteen 191

Unit Nineteen 204

Unit Twenty ……………………………………………………？Unit Twenty-One …………………………………………？Unit Twenty-Two 242

Unit Twenty-Three 255

Unit Twenty-Four 270

Key 284