目录 Unit 1 ................................................. 1 Text 1 ................................................................... 1 Text 2 ................................................................... 2 Text 3 ................................................................... 3 Text 4 ................................................................... 4
Unit 2 ............................................... 22 Text 1 ................................................................. 22 Text 2 ................................................................. 23 Text 3 ................................................................. 24 Text 4 ................................................................. 25
Unit 3 ............................................... 42 Text 1 ................................................................. 42 Text 2 ................................................................. 43 Text 3 ................................................................. 44 Text 4 ................................................................. 45
Unit 4 ............................................... 66 Text 1 ................................................................. 66 Text 2 ................................................................. 67 Text 3 ................................................................. 68 Text 4 ................................................................. 69 Unit 5 ............................................... 86 Text 1 ................................................................. 86 Text 2 ................................................................. 87 Text 3 ................................................................. 88 Text 4 ................................................................. 89 Unit 6 ............................................. 107 Text 1 ............................................................... 107 Text 2 ............................................................... 108 Text 3 ............................................................... 109 Text 4 ............................................................... 110 Unit 7 ............................................. 129 Text 1 ............................................................... 129 Text 2 ............................................................... 130 Text 3 ............................................................... 131 Text 4 ............................................................... 132 Unit 8 ............................................. 149 Text 1 ............................................................... 149 Text 2 ............................................................... 150 Text 3 ............................................................... 151 Text 4 ............................................................... 152
Unit 9 ............................................. 170 Text 1 ............................................................... 170 Text 2 ............................................................... 171 Text 3 ............................................................... 172 Text 4 ............................................................... 173
Unit 10 .......................................... 191 Text 1 ............................................................... 192 Text 2 ............................................................... 193 Text 3 ............................................................... 194 Text 4 ............................................................... 195
Unit 11 .......................................... 211
Text 1 ............................................................... 211 Text 2 ............................................................... 212 Text 3 ............................................................... 213 Text 4 ............................................................... 214
Unit 12 .......................................... 231
Text 1 ............................................................... 231 Text 2 ............................................................... 232 Text 3 ............................................................... 233 Text 4 ............................................................... 234
Unit 13 .......................................... 252 Text 1 ............................................................... 252
Text 2 ............................................................... 253 Text 3 ............................................................... 254 Text 4 ............................................................... 255
Unit 14 .......................................... 273 Text 1 ............................................................... 273
Text 2 ............................................................... 274 Text 3 ............................................................... 275 Text 4 ............................................................... 276
Unit 15 ..........................................293 Text 1 ............................................................... 293 Text 2 ............................................................... 294 Text 3 ............................................................... 295 Text 4 ............................................................... 296
以下为对购买帮助不大的评价