Unit One 1
Changes in the Way We LiveListening Comprehension 1
Vocabulary and Structure 4
Integrated Comprehension 7
Process Writing 17
Unit Two 20
Civil-Rights Heroes 20
Listening Comprehension 20
Vocabulary and Structure 22
Integrated Comprehension 26
Process Writing 36
Unit Three 39
Security 39
Listening Comprehension 39
Vocabulary and Structure 42
Integrated Comprehension 45
Process Writing 55
Unit Four 59
Extraterrestrials 59
Listening Comprehension 59
Vocabulary and Structure 61
Integrated Comprehension 65
Process Writing 74
Test Yourself(Units 1-4) 78
Unit Five 91
How to Celebrate HolidaysListening Comprehension 91
Vocabulary and Structure 94
Integrated Comprehension 98
Process Writing 107
Unit Six 110
The Human Touch 110
Listening Comprehension 110
Vocabulary and Structure 113
Integrated Comprehension 116
Process Writing 125
Unit Seven 129
Making a Living 129
Listening Comprehension 129
Vocabulary and Structure 132
Integrated Comprehension 135
Process Writing 144
Unit Eight 148
Cloning 148
Listening Comprehension 148
Vocabulary and Structure 151
Integrated Comprehension 154
Process Writing 164
Test Yourself(Units 5-8) 167
Appendix 189
Key to Units 1- 4
Unit One 189
Unit Two 194
Unit Three 199
Unit Four 204
Tapeseript and Key to Test Yourself(Units 1-4) 209
Key to Units 5- 8
Unit Five 212
Unit Six 217
Unit Seven 222
Unit Eight 227
Tapescript and Key to Test Yourself(Units 5-8) 232
学习进度一览表 237