上册 阅读与翻译 1
Sample Test 1
Unit One 7
Unit Two 13
Unit Three 19
Unit Four 25
Unit Five 31
Unit Six 37
Unit Seven 43
Unit Eight 49
Unit Nine 55
Unit Ten 61
Unit Eleven 67
Unit Twelve 73
Unit Thirteen 79
Unit Fourteen 85
Explanatory Answers 91
Sample Test 91
Unit One 94
Unit Two 96
Unit Three 98
Unit Four 100
Unit Five 102
Unit Six 105
Unit Seven 107
Unit Eight 109
Unit Nine 111
Unit Ten 113
Unit Eleven 115
Unit Twelve 117
Unit Thirteen 119
Unit Fourteen 121