大学英语课件1：Unit2读写译.pptVIP

Understand the unexpected effects of exercise on human body. Practice distinguishing between facts and opinions. Write a short paragraph following the “effect-causes” pattern. Warming-up Section A Section B C Online task Background information Audio-visual materials Idea sharing (A topic for discussion] Background information Background information Medicine Science in Sports Exercise is the official Journal of the American College of Sports Medicine, which helps readers enhance their basic understanding about the role of physical activity in human health and function. The Journal includes original peer-reviewed articles, relevant discussions following each article to provide understanding of how a particular study contributes to other research topics, advances in methodology, as well as viewpoints of leading scientists and physicians. With it, exercise physiologists, physiatrists, physical therapists, team physicians and athletic trainers get a vital exchange of information from basic and applied science, medicine, education and allied health fields. Background information The digestive system is a series of hollow organs joined in a long, twisting tube from the mouth to the anus. Inside this tube is a lining called the mucosa. In the mouth, stomach, and small intestine, the mucosa contains tiny glands that produce juices to help digest food. Two solid organs, the liver and the pancreas, produce digestive juices that reach the intestine through small tubes. In addition, parts of other organ systems (for instance, nerves and blood) play a major role in the digestive system. Idea-sharing (Group Work) What exercise do you take regularly? What do you know about the positive and negative effects of exercise? Idea-sharing: forms of exercise aerobic exercise: Squats (蹲坐); Abdominal(腹部) exercises; Lunges (俯卧 撑); Push-ups (上推 Running; Walking; football, basketball, tennis, swimming, bowling, Tai chi, Yoga