目录 1
Unit 1 1
Exercise 1 1
Exercise 2 2
Exercise 3 5
Exercise 4 7
Unit 2 13
Exercise 1 13
Exercise 2 14
Exercise 3 16
Exercise 4 19
Unit 3 25
Exercise 1 25
Exercise 2 26
Exercise 3 28
Exercise 4 31
Unit 4 37
Exercise 1 37
Exercise 2 39
Exercise 3 40
Exercise 4 44
Exercise 1 49
Unit 5 49
Exercise 2 51
Exercise 3 53
Exercise 4 55
Unit 6 61
Exercise 1 61
Exercise 2 63
Exercise 3 65
Exercise 4 67
Exercise 1 73
Unit 7 73
Exercise 2 74
Exercise 3 77
Exercise 4 79
Unit 8 85
Exercise 1 85
Exercise 2 86
Exercise 3 88
Exercise 4 90
Exercise 1 96
Unit 9 96
Exercise 2 97
Exercise 3 100
Exercise 4 101
Unit 10 108
Exercise 1 108
Exercise 2 109
Exercise 3 111
Exercise 4 113
Exercise 1 118
Unit 11 118
Exercise 2 120
Exercise 3 121
Exercise 4 122
Unit 12 127
Exercise 1 127
Exercise 2 129
Exercise 3 131
Exercise 4 133
Unit 13 139
Exercise 1 139
Exercise 2 140
Exercise 3 143
Exercise 4 145
Unit 14 150
Exercise 1 150
Exercise 2 151
Exercise 3 153
Exercise 4 154
Unit 15 160
Exercise 1 160
Exercise 2 161
Exercise 3 163
Exercise 4 165
Unit 16 173
Exercise 1 173
Exercise 2 174
Exercise 3 176
Exercise 4 178
综合测试卷（一） 184
综合测试卷（二） 193
参考答案 202