Part One Texts 1
Unit 1 3
Passage One:The Application of Cloning Technology to Disease Therapies 3
Passage Two:The Coming of the Century of Biotechnology 6
Unit 2 9
Passage One:Cybersquatting 9
Passage Two:How to Secure E-mail 11
Unit 3 15
Passage One:Common Pests and Diseases of Local Agricultural Plants（Ⅰ） 15
Passage Two:Common Pests and Diseases of Local Agricultural Plants（Ⅱ） 17
Unit 4 21
Passage One:Island Streams 21
Passage Two:Babies Were Born to Be Breastfed 24
Unit 5 28
Passage One:Finding the Most Effective and Economical Fuel for Cars 28
Passage Two:The Iron Horse 31
Unit 6 35
Passage One:What Does a Credit Card Bring Us? 35
Passage Two:Twinkle,Twinkle,Little Bat 38
Unit 7 43
Passage One:Inside the Mind of a Genius（Ⅰ） 43
Passage Two:Inside the Mind of a Genius（Ⅱ） 46
Unit 8 51
Passage One:Solar Heating（Ⅰ） 51
Passage Two:Solar Heating（Ⅱ） 54
Unit 9 58
Passage One:Secrets of Pain（Ⅰ） 58
Passage Two:Secrets of Pain（Ⅱ） 62
Unit 10 67
Passage One:Caffeine（Ⅰ） 67
Passage Two:Caffeine（Ⅱ） 70
Part Two Keys and Explanations 75
Part Three Translation for the Texts 95
