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教案设计 种类:教 案 名称:高一英语(下), 15 单元 ,58课 作者:成艳萍 单位:山西省交城中学; 北京师范大学外 语系2001级教育 硕士 单位:山西医科大学 公共卫生学院 营养与食品教研室 作者:邱服斌 Healthy Eating -----What is a healthy diet? SEFC Book 1 B Unit 15 Lesson 58 Unit 15 Reading Lesson 58 WHAT IS A HEALTHY DIET Paragraph 1 Every person needs water and a diet of healthy foods. These foods should contain some fat, some fibre, a little salt and so on. Paragraph 2 People need energy to live. They eat different kinds of Food which change into energy. The energy is measured in calories. Even when you are asleep, you are using energy —about 65 calories an hour. While you are at school, or walking home, your body is burning up 100 calories an hour. When playing football or basketball, you might be using 400 calories an hour. On Sports Day, during the relay race, you will use most of all, perhaps as much as 650 calories an hour. Paragraph 3 The Chinese diet is considered to be the healthiest in the world. It contains a lot of fruit and green vegetables. It is rich in fibre and low in sugar and fat. The Chinese eat less sugar than many other countries in the world. That is why lots of people in China have healthy white teeth. Paragraph 4 People in the Western world do not eat such healthy foods. They eat too much fat and sugar and don’t take enough exercise. Because of this, they put on weight very easily. Their diet contains a lot of fat in the form of potato crisps, potatochips, butter, cream and chocolate. They eat a lot of sugar in the form of cakes, soft drinks, sweets and so on. The result is that many of them become fat. And some have bad teeth. In some parts of Britain, one person in ten, by the age of thirty, has no teeth left! Teaching Aims • Help students to know what is a healthy diet so as to guide themselves with their own everyday diet. • Help them to learn to make suggestions to others who is not healthy. • Students are expected to use some phrases in the text to make sentences. • Help them to practise fast reading. Teaching Plan Step 1 Ask students to brainstorm what they usually eat for breakfast, lunch and supper. Step 2 Get them to make a group discussion about what they think is a healthy diet. Step 3 Present them the pictures(8—22) and help them to know what is a healthy diet. Step 4 Allow students five minutes to go through the text very quickly and do the exercise “ Fill in the blanks”(picture 23). Step 5 Get students to do more reading comprehension in the Workbook and help them with the language difficulty in the text. Step 6 Ask students to write a letter to Jane who is sad about being fat. CONTENTS DIET AND HEALTH NUTRIENTS DIET FIBRE BALANCED DIET Many deaths have multiple causes, but nutrition and/or alcohol play parts in many of them. NUTRITION AND HEALTH CLASSES OF FOODS Cereals Vegetables and Fruits Fishes、Meats and Eggs Milks and Beans Foods only offering energy ENERGY Energy-yielding nutrients Carbohydrate Fat Protein Energy in the Body Help build new compounds Help move the body (do work) The energy to do physical training comes from the carbohydrate, fat, and protein in foods. NUTRIENTS LIPIDS PROTEIN CARBOHYDRATES FOOD WATER MINERALS VITAMINS 糖尿病、肥胖、结肠癌、 Diabetes, Obesity, 心脑血管疾病 Cancer, Heart Disease 西方 The west 非洲 Africa POSITIVE EFFCTS 1. Weight Control 2. Improving Large Intestine Function and Health NEGATIVE EFFECTS 3. Preventing Cancer 4. Lowering Blood Cholesterol Levels Too much fibre causes: 5. Diabetes Control 1. Abdominal Discomfort 2. Low Nutrient Availability The Chinese diet is rich in fiber and low in sugar and fat. How much fiber do we need? 20~30g/d RECOMMENDED BY CNS Variety helps to ensure an adequate and balanced diet. The Food Guide Pagoda (CNS) Fats & Oils Group 25g Milk, Yogurt & Cheese Group100g Beans Group 50g Meat & Poultry Group 50-100g Fish & Shrimp Group 50g Eggs Group 25-50g Vegetable Group 400-500g Fruit Group 100-200g Cereal Group 300-500g USDA`s Food Guide Pyramid 46% 50% 38% 40% 30% 15% 20% 10% 55% 0% 60% CURRENT U.S. DIET Protein Carbohydrate Fat People in the Western world eat too much fat and sugar. They put on weight very easily. Many people are fat and some have bad teeth. 50% 30% 40% 30% 15% 20% 10% 0% TYPICAL DIET RECOMMENATIONS Protein Carbohydrate Fat Diet Guidelines Eat a variety of foods. Choose a diet low in fat. Reducing fat to 30% of kcalories. Choose a diet with plenty of vegetables, fruits, and grain products. Use sugars only in moderation. Use salt only in moderation. If you drink alcohol, do so in moderation. Fill in the blanks with proper words. The Chinese diet is considered to be the healthiest contains a lot of fruit and green in the world. It ______ rich low vegetables. It is _______ in fiber and _______ in sugar and fat. However, people in the Western world _______ too much fat and sugar and don’t eat _______ enough exercise. Because ____ take of this, put they ______ on weight very easily. Many people in the Western countries are _____ fat and some have bad ______.teeth THANK YOU! Produced by Cheng Yanping(Master of Education of 2001, Foreign Languages Department, Beijing Normal University) & Qiu Fubin (Public Health College, Shanxi Medical University) Dec. 12, 2001