Contents 1
Unit 1 1
Part Ⅰ Language Skill 1
Part Ⅱ Language in Context 7
Text A Can We Know the Universe? 7
Part Ⅲ Toward Productive Language 20
Text B Our Picture of the Universe 21
Unit 2 30
Part Ⅰ Language Skill 30
Part Ⅱ Language in Context 36
Text A Extraterrestrial Life 36
Part Ⅲ Toward Productive Language 48
Text B UFOs 49
Unit 3 58
Part Ⅰ Language Skill 58
Part Ⅱ Language in Context 65
Text A The Grizzly 65
Part Ⅲ Toward Productive Language 78
Text B Our Disappearing Wildlife 80
Unit 4 89
Part Ⅰ Language Skill 89
Part Ⅱ Language in Context 95
Text A Why Superstitions? 95
Part Ⅲ Toward Productive Language 108
Text B Astrology 109
Part Ⅰ Language Skill 119
Unit 5 119
Part Ⅱ Language in Context 125
Text A One Vote for This Age of Anxiety 125
Part Ⅲ Toward Productive Language 137
Text B The Man in the Water 139
Unit 6 147
Part Ⅰ Language Skill 147
Part Ⅱ Language in Context 153
Text A Symptoms 153
Part Ⅲ Toward Productive Language 165
Text B Cure Yourself of Unhappiness 167
Part Ⅰ Language Skill 175
Unit 7 175
Part Ⅱ Language in Context 182
Text A We Are All Scientists 182
Part Ⅲ Toward Productive Language 194
Text B The Common Language ofScience 195
Unit 8 204
Part Ⅰ Language Skill 204
Part Ⅱ Language in Context 211
Text A ComputerAddicts 211
Part Ⅲ Toward Productive Language 224
Text B Dance of the Electronic Bee 226
Appendix 236
Vocabulary 236