Unit 1 Universities 1
Unit 2 Mother's Day 20
Unit 3 Global Warming 38
Unit 4 Career 59
Unit 5 Bill Gates and Microsoft 78
Unit 6 A Blessing in Disguise 99
Unit 7 The Best Policy 120
Unit 8 Culture 143
Unit 9 Health 164
Unit 10 Human＆Animal 183
Glossary 204