21世纪大学实用英语教案 Unit 4

河北金融学院教案课程名称：英语读写（一）教材名称：《21世纪大学实用英语综合教程》(第一册)出版单位：复旦大学出版社出版时间：2010年8月主编：翟象俊、余建中、陈永捷、梁正溜教案编写人：韩玉霞授课专业（班级）：11贸易乙班授课时间：2011年9月-2012年1月河北金融学院课程教案授课教师：韩玉霞授课班级： 11贸易乙班授课时间：2011年9月19日-2011年12月31日课题Unit 4 Text A Running Like the WindText B Exercise: What Can It Do For You?教学基本要求与目标1. master the basic language and skills to express personal interests and state likes and dislikes;2. understand the main idea of Texts A, B and C, and master the useful sentence structures, words and expressions found in the relevant exercises of the first two texts;3. know how to use the present perfect and the past perfect;4. know how to write a business card in English;5. understand the signal words in an English passage (2).方法与手段 explaining实践性环节1. let the Ss discuss in group2. let the Ss explain some important sentences课外要求let the Ss practice reading skills by finding signal words内容（其中：重点划“△”，难点划“﹡”）课时分配I. Background InformationRunningRunning has been around as long as humans have, but it did notbecome a popular activity for the masses until the 1970s. Americanphysician Kenneth Cooper’s book Aerobics (1968) is considered one ofthe first inspirations for this growth. The book demonstrated theconsiderable health gains that could be derived from regular workoutsthat emphasized cardiovascular fitness. Other people credit AmericanFrank Shorter and his gold medal in the marathon at the 1972 Olympicswith sparking a surge of interest in running. In the years following his2 periodswin, a number of books and periodicals devoted to running emerged.In the years following his win, a number of books and periodicals devoted to running emerged. Today running is firmly established as both a recreational pursuit and a training tool; it is practiced by millions of people to get in shape, stay fit, and have fun.There are many different kinds of runners, from casual joggers to regular race runners to ultra marathoners who run 100 miles at a time. Each runner should have a specific training regimen tailored to the individual’s goals and abilities.A good schedule for a beginner is to run 20 minutes at a time, every other day. Occasionally, additional time off is needed because of illness or injury. Depending on the length of the break, it is often advisable to work back into a regular workout gradually, rather than jumping back into the normal routine immediately.In the short term, there are techniques that can help a runner perform better. Mixing in higher speed workouts is one strategy, but this can lead to injury unless the individual builds up to them gradually. Hill and trail running builds strength, and weightlifting can also help. Massage and whirlpools can help muscles recover faster between workouts. A healthy diet is also beneficial. Some distance runners find that eating foods high in carbohydrates (such as pasta) in the days before a big race provides their bodies with more fuel.Many runners will at some point want to enter a race, to push themselves and to perhaps see how they compare with other runners at their age and experience level. Many areas have a variety of local 5-or 10-km (3.1mi or 6.2mi) road runs.Physical FitnessPhysical fitness is the ability of the human body to function with vigor and alertness, without undue fatigue, and with ample energy to engage in leisure activities, and to meet physical stresses.The level of physical fitness can be influenced by regular, systematic exercise. Exercises that demand total body involvement improve and maintain fitness most effectively-for example, jogging, running, swimming, vigorous dancing, cycling, and brisk walking.Normal, healthy individuals may plan their own exercise programs. The general rule is to exercise only until discomfort is experienced-that is, until breathing becomes labored, circulation seems inadequate, or fatigue influences performance. People with health problems People with health problems caused by heart attacks, strokes, and illness should see a physician before devising an exercise program.Proper nutrition is also important to physical fitness, because energy expenditure depends on nutrition. If diet is inadequate, the fitness level will drop.Benefits of ExerciseThe benefits of exercise are far reaching. Studies have demonstrated that regular aerobic exercise reduces the risk of death due to heart disease and stroke, aids in reducing weight, helps prevent diabetes mellitus, strengthens bones, and enhances immune function. The psychological benefits are also broad, and most studies suggest a positive relationship between physical fitness and mental achievement.The relationship between regular aerobic exercise and cardiovascular health and longevity is well established. Regular exercise leads to a reduction in the risk of coronary heart disease, in which fatty deposits (plaque) form in blood vessels supplying the muscular wall of the heart, compromising oxygen delivery to the heart muscle. In addition, with regular exercise the efficiency of the heart during exercise is increased.Many people exercise to lose weight. A calorie is a unit that measures the energy content of foods and the energy expenditure by the body. When the daily calorie intake from food is the same as calories expended from exercise,weight remains the same. The number of calories burned during exercise varies greatly with the type of physical activity, but the key to successful weight reduction is to exercise regularly, without increasing food intake proportionally.One area of controversy has been how much exercise is enough to improve general health, reduce the risk of heart disease, and increase longevity. Meaningful studies on this topic are very difficult to performbecause they require large populations of subjects and many years ofdata collection, and because poor health sometimes results in limitationsto physical activity. Despite these difficulties, it is clear that regularexercise, along with a generally healthy lifestyle, is beneficial. Peoplewho have sedentary lifestyles make up half the population of industrialized societies, and this group has the most to gain by exercising.2 Periods II．Class Presentation△Text A Run Like the WindStarterFor many of us, running like the wind sounds like a dream that maynever come true. How fast can you run? Talk to your classmates and findout who is the best runner. Ask the best runner to tell you how he or shemanages to do it.The name of the best runner is ________ .He/She can run 100 meters in ________ seconds.He/She can run so fast because __________Now read the following passage and find out what advice the authorgives us in order to run fast.While-Reading:Para. 1Language Points:△1. Even the slowest person on the playground can become a fastrunner by learning and practicing running techniques.即使运动场上跑得最慢的人也可以通过学习和练习跑的技术成为一个跑得快的人。