Unit 1 Text A The Importance of the Social Environment for Health and Well-being Text B Mood and Health Unit 2 Text A Exercise and the Immune System Text B Inborn Immunity Unit3 Text A Molecular Biology Text B Molecular Biology--Study on Cancer Unit 4 Text A Medical Sociology Text B Living Environments and Man Unit 5 Text A Hypertensive Encephalopathy Text B Down With High Blood Pressure 、 Unit 6 Text A Freedom from pain Text B Anaesthetics and Surgery Operation Unit 7 Text A Thrombolysis in Myocardial Infarction Text B Low Risks of Coronary Thrombosis Unit 8 Text A Science Funding:Up in Smoke? Text B Settlement or Sellout? Unit 9 Text A A Bitter Pill to swall Text B The Pill for Men Unit 10 Text A New Help for Troubled Sleepers Text B Timing the End of Nocturnal Sleep Unit 11 Text A Cloning Hit the Big Time Text B Still Living in The Stone Age …… Unit 19 Text A The Search for New Drugs Text B Synthetic Drugs Unit 20 Text A Principles of Clinical Endocrinology and Metabolism Text B Pathophysiologic Mechanisms in Metabolic Diseases Unit 21 Text A A Brief Introduction to Pathology Text B Nutritional Factors in Disease Unit 22 Text A The Scope and Language of Dermatology Text B History-Taking of Dermatology Unit 23 Text A What is Acute Poisoning? Text B Substances and Methods Used in Intentional Poisoning 附:各單元譯文及參考答案