UNIT ONELESSON ONE 1
LESSON TWO 6
LESSON THREE 14
LESSON FOUR 24
LESSON FIVE 36
LESSON SIX 48
LESSON SEVEN 62
LESSON EIGHT 74
LESSON NINE 88
LESSON TEN 102
LESSON ELEVEN 113
LESSON TWELVE 123
LESSON THIRTEEN 136
LESSON FOURTEEN 150
LESSON FIFTEEN 160
LESSON SIXTEEN 174
LESSON SEVENTEEN 188
LESSON EIGHTEEN 202
UNIT FOURLESSON NINETEEN 217
LESSON TWENTY 229
LESSON TWENTY-ONE 241
LESSON TWENTY-TWO 254
语法：被动语态（二）SUPPLEMENTARY READINGSⅠ．My Name Is PLA Man 266
Ⅱ．The Export Commodities Fair 268
Ⅲ．Wholesaler and Retailer 269
Ⅳ．What Is the Aim of Production 271
Ⅴ．Foreign Trade 273
Ⅵ．Packaging 275
Ⅶ．English Meals 277
Ⅷ．Transporting 280
附录一 不规则动词表 283
附录二 总词汇表 287