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Unit 2 Healthy eating教案

Unit 2 Healthy eating
I. 单元教学目标 技能目标 Skill Goals Talk about healthy diet Make suggestions or giving advice on diet Distinguish the meanings of Modal verbs Make a balanced menu II. 目标语言 P

ractice talking about your ideas 功 能 句 式 Yes, I think so. I don?t think so. I agree. I don?t agree. That?s correct. Exactly. That?s exactly my opinion. You?re quite right. I don?t think you are right. I quite agree with you. I?m afraid I don?t agree / disagree with you. Of course not. I?m afraid not. All right. That?s a good idea. Certainly. / Sure. No problem. Practice giving advice and suggestions You must / must not... 1. 四会词汇 diet, nut, bean, pea, cucumber, eggplant, pepper, mushroom, peach, lemon,

balance, barbecue, mutton, roast, fry, stir-fry, ought, bacon, slim, curiosity, hostess, raw, vinegar, lie, customer, discount, weakness, strength, consult, 词 fiber, digest, carrot, debt, glare, spy, limit, benefit, breast, garlic, sigh, combine 汇 2. 认读词汇 protective, spaghetti, protein, crisp, kebab, sugary, muscle, calmly, cooperation 3. 词组 get away from, balanced diet, ought to, lose weight, tell a lie, win… back, earn one?s living, in debt, spy on, cut down, before long, put on weight The use of ought to 1. Statements 语 You ought to cook fresh vegetables and meat without too much fat if you want to stay slim. 法 You ought not to eat the same kind of food at every meal. 2. Difficulty Distinguish and summarize the usage of ought to and should. Ⅲ. 教材分析与教材重组 1. 教材分析 本单元以“健康饮食”为中心话题,通过单元教学让学生了解各种食物对人体 的作用,引导学生关注平衡膳食,促使学生养成健康饮食的习惯。针对现实中遇 到的实际问题发表自己的看法。最后让学生运用所学知识,两人一组研究中餐, 设计食谱。 1.1 WARMING UP 是本单元一个重要的组成部分。让学生看图讨论不同食 物对人体的作用, 了解饮食与人体健康的关系。通过几个设问激发学生思考自己 的饮食习惯是否合理,运用已有的知识经验思考什么是 Healthy Eating. 1.2 PRE-READING 通过一个表格和一个排序题引导学生对比不同食物中 哪些食物富含脂肪、纤维素、维生素和糖份。可添加讨论如何在烹饪中保持食物 营养,从而有利于健康。

1.3 READING 讲述王鹏和咏慧开饭店的不同风格和顾客对不同食品的反 应, 反映了现代人对饮食的关注和对时尚的追求。但王鹏和咏慧都没有提供平衡 的膳食,经过一段时间的磨合,他们决定合作,提供既有能量又有纤维的食品。 戏剧性的结尾增添了故事的趣味性。通过阅读丰富学生的饮食文化,教会他们如 何改善饮食习惯;在现实生活中碰到麻烦时,如何正确处理矛盾,解决问题。 1.4 COMPREHENING 利用判断和回答问题的形式考查学生对课文细节的 理解,对比两家饭店所提供膳食的优缺点。 1.5 LEARNING ABOUT LANGUAGE 是继 Comprehending 之后的又一指导 性练习。 注重考查词性的变化, 课文中重点词汇在语篇中的熟练运用及情态动词 的不同功能,并设计连线和情景对话两个题型予以巩固。 1.6 USING LANGUAGE 体现了学以致用的目的,从 Listening, Reading, Speaking, Writing 四方面训练学生,完成语言的输入性学习和输出性训练的过 程,结合生活实际,让学生两人一组研究中餐设计食谱。 2. 教材重组 2.1 精读 把 Warming up 作为 Reading 的导入部分,把 Pre-reading、Reading 和 Comprehending 整合在一起作为一堂“精读课”。 2.2 语言学习 把 Learning About Language 和 Workbook 中的 Using words and expressions, Using Structures 结合在一起上一节“语法课”。 2.3 听力 把 Using Language 中的 Listening 和 Workbook 中的 Listening, Listening Task 放 在一起上一堂“听力课”。 2.4 泛读 Using Language 中的 Reading 与 Workbook 中的 Reading Task 放在 一起上一堂“泛读课”。 2.5 口语 将 Page 13 Activity 3 和 Workbook 中的 Talking, Speaking Task 放在 一起上一堂“口语课”。 2.6 语言运用 将 Speaking and Writing 和 Workbook 中的 Writing Task, Project 整合在一起上一堂“写作课”。 3. 课型设计与课时分配 1st period 2nd period 3rd period Warming up and Reading Language study Listening

4th period 5th period 6th period Ⅳ. 分课时教案

Extensive reading Speaking Writing

The First Period Teaching goals 教学目标

Warming up and Reading

1. Target language 目标语言 a. 重点词汇和短语 energy, fiber, digestion, bean, cucumber, mushroom, lemon, ham, mutton, roast, slim, curiosity, raw, lie, customer, muscle, cheese, protective, frustrated, drive, sugary, body-building, energy-giving, newly-opened, balanced diet, ought to, tired of, throw away, get away with, tell lies, take off, be amazed at, do some research b. 重点句子 His fried rice was hot but did not taste of fat. Tired of all that fat? Want to be thinner? Only slimming food served here. I will take all that fat off you in two weeks if you eat here every day. It was not giving its customers energy-giving food! Something terrible must have happened if Maochang was not coming to eat with him as he always did. He wondered if he should go to the library to find out. He couldn?t have Yong Hui getting away with telling people lies! 2. Ability goals 能力目标 a. Enable students to talk about their eating. In what ways the food you eat helps you? How can you have a healthy diet? What will happen if you don?t have a balanced diet? b. Understand the text and answer the following questions. What happened to Wang Peng?s restaurant? Why would his customers prefer to eat at Yong Hui?s restaurant? What did he do after leaving Yong Hui?s restaurant?

c. Understand the details about the text and retell the text in the role of Wang Peng. 3. Learning ability goals 学能目标 Enable the students to learn how to talk about their eating. What does a healthy diet mean? Is what Yong Hui did right? Why? What will you do if you are Wang Peng? Teaching important points 教学重点

a. Identify different groups of foods and talk about healthy eating. b. What kind of food did they provide for their customers, healthy or unhealthy? Why? Teaching difficult points 教学难点

a. Understand the real meaning of healthy eating. b. How was the competition going on? Who would win? Teaching methods 教学方法

a. Fast and careful reading. b. Asking-and-answering activity to check the Ss? understanding of the text. c. Individual, pair or group work to finish each task. d. Discussion. Teaching aids 教具准备

A recorder, a computer and a projector. Teaching procedures & ways Step I Warming up What are the three essential elements for us human beings to survive on the earth? Water, air, food Which one would you prefer? Western food or Chinese food? What do you usually have for breakfast / lunch /supper ? What will happen if you do not eat a balanced diet? Discussion What is healthy diet? Healthy diet: a diet that is balanced and neither too rich in fat, sugar and salt nor too 教学过程与方式

poor and lacking in essential nutrients. Speaking Decide which food is junk food or healthy food and give reasons. I think …is junk food because… I think … is healthy food because… (be rich in; be low in) Pre-reading 1. What do you think should go into a good meal? A good meal should contain some food from each of the three categories above. 2. Imagine you and your partner are going to invite some friends for dinner. What special food of your place would you offer them? Plan a menu. 3. Look at the title of the reading passage and the pictures. Predict what the passage is about. Fast reading Read the text quickly to find out which sentence is the main idea of the text. 1. The two restaurants supplied the healthy food. 2. The reason why Yong Hui’s restaurant was so popular with customers. 3. Wang Peng found out why he had lost his customer and decided to win them back. Key: 3 Reading 1. Usually Wang Peng?s restaurant was full of people. T 2. Yong Hui could make people thin in two weeks by giving them a good diet. It would take longer than that. F T F

3. Wang Peng?s regular customers often became fat.

4. Yong Hui?s menu gave customers more emery-giving food.

No. it gave them protective food but no energy-giving or body-building food. 5. Wang Peng?s menu gave customers more protective food. F F

6. Wang Peng decided to compete with Yong Hui by copying her menu. He decided to advertise the benefits of his menu. Post reading

1. The weakness of the diet in Wang Peng?s restaurant was ______ _______________________________. 2. The strength of the diet in Wang Peng?s restaurant was _____ ____________________________ __________. Homework 1. Retell the text. (1) Use the first person to retell the story. (2) Try to use proper prepositions and conjunctions. 2. Prepare for the language learning and do Using Words and Expressions on WB (Page 49and 50). The second period Extensive reading Pre-reading Learn these proverbs. You are what you eat. First wealth is health. 健康是人生的第一财富。 -----Emerson An apple a day keeps the doctor away. 一天一个苹果,医生不来找。 New words and phrases: limited: not very great in amount or extent benefit: advantage that sth. gives you sigh: take a long deep breath 叹气,叹息 combine: join two or more things together to form a single one 组合, 联合 earn one?s living: keep alive in a certain style 谋生/挣钱维持生活 in debt: owe a lot of money 欠债 glare at: stare angrily or fiercely 怒目而视 有限的 人如其食。

优势, 益处

Can you guess what will happen to Wang Pengwei and Yong Hui?

Read the text fast, then answer the following questions:

1. How did Yong Hui feel when she came to Wang?s restaurant? Why? 2. What did they find after their chat? 3. How did they solve their problems and become good friends? 4. How did they combine their menus and provide a balanced menu? 5. Why was their cooperation a success? Discussion What can we learn from the passage? We can learn that it is never too late to change bad eating habits and begin afresh. The third period Grammar 情态动词 1. ought to/should should 和 ought to 都为“应该”的意思,可用于各种人称。ought to 的 语气稍重一些。 You ought to (should) follow your teacher ?s advice. 表示主语的义务或责任: You should take care of your sister. 你应当去照顾你妹妹。 或指出—个正确、明智的动作: They shouldn't allow parking here;the street is too narrow. 这儿不该允许停车;马路太窄了。 should 和 ought to 后面跟动词不定式的完成式,其肯定句表示”过去应该做而未 做”, 其否定句则表示”过去不该做但做了”。 You should/ought to have made the decision a week ago. I shouldn't have made such a foolish mistake. 多数情况下, ought to 可与 should 互换使用。 ought to 的反意疑问句用 shouldn?t 替代。 2. must 和 have to must 的用法 1 )表示主观的义务和必要 , 主要用于肯定句和疑问句 , 意思为 “ 必

须 …… ,得 …… ,要 ……” ;由 must 引起的疑问句,肯定回答要用 must 或 have to, 否定回答要用 needn?t 或 don?t have to, 意思是“不必” ; must 的否定形式 mustn?t 表示禁止,意思是“不能,不许”。如: — Must I finish the task right now? 我现在必须完成这个工作吗? —Yes, you must. / Yes, you have to. 是的。 (—No, you needn?t. / No, you don?t have to. 不,不必。)

You mustn?t come here without permission. 未经允许,你不能来这儿。 have to 的用法 1)must 表示一种主观的需要,而 have to 表示一种客观的需要,意思是“不得 不”。 如: I have to attend an important meeting this afternoon. 今天下午我不得不参加一个重要的会议。 Mother is out, so I have to look after the shop. 妈妈不在家,因此我不得不照看商店。 2)have to 的否定形式是 don?t have to, 相当于 needn?t。如:

They don?t have to buy a computer at present. 他们目前没有必要买电脑。 背景知识 I.Healthy Eating for Lifetime Variety, Balance and Moderation A healthy diet includes all foods. Variety is important because no one food can provide all the nutrients the body needs for health. Try new foods to tantalize your taste and vary your nutrient intake. We can make many possible choices within each food group. Choices may be made to accentuate specific needs like fiber. For example, in the protein-rich ?meat? group, beans are a low fat, high fiber option compared to ground beef. In the fruit group, whole fruit is usually a higher fiber choice than fruit juice.

Foods containing important nutrients can help us prevent disease and even restore our health. Striking a balance between foods that promote health and those that may be risky is important for long term well being. Choose foods that are better for your health more often. Without a doubt, fats and cholesterol are the single most important group of nutrients to limit in your diet if you want to reduce your risk of chronic disease. Heart disease and cancer, two of this nation?s leading killers, are linked to diets high in fat. Other chronic health problems may be exacerbated by high fat diets. Saturated fat, that is, fat that is solid at room temperature, appears to carry the greatest amount of risk. Alcohol is not pictured on the food pyramid, but if it were it would be in the tip of the pyramid. Alcohol has only empty calories in the way that sugar and most fats do. Pregnant women should avoid alcohol beverages. Foods and beverages that are less nutritious do not have to be eliminated but they should be consumed in moderation - saved for special occasions. Making healthy food choices can be the difference between health and disease. II. 10 Tips to Healthy Eating Experts agree the key to healthy eating is the time-tested advice of balance, variety and moderation. In short, that means eating a wide variety of foods without getting too many calories or too much of any one nutrient. These 10 tips can help you follow that advice while still enjoying the foods you eat. 1. Eat a variety of nutrient-rich foods. You need more than 40 different nutrients for good health, and no single food supplies them all. Your daily food selection should include bread and other whole-grain products, fruits, vegetables, dairy product and meat, poultry, fish and other protein foods. How much you should eat depends on your calorie needs. Use the Food Guide Pyramid and the Nutrition Facts panel on food labels as handy references. 2. Enjoy plenty of whole grains, fruits and vegetables. Surveys show most Americans don?t eat enough of these foods. Do you eat 6-11 servings from the bread, rice, cereal and pasta group, 3 of which should be whole grains? Do you eat 2-4 servings of fruit

and 3-5 servings of vegetables? If you don?t enjoy some of these at first, give them another chance. Look through cookbooks for tasty ways to prepare unfamiliar foods. 3. Maintain a healthy weight. The weight that?s right for you depends on many factors including your sex, height, age and heredity. Excess body fat increases your chances for high blood pressure, heart disease, stroke, diabetes, some types of cancer and other illnesses. But being too thin can increase your risk for osteoporosis, menstrual irregularities and other health problems. If you?re constantly losing and regaining weight, a registered dietitian can help you develop sensible eating habits for successful weight management. Regular exercise is also important to maintaining a healthy weight. 4. Eat moderate portions. If you keep portion sizes reasonable, it?s easier to eat the foods you want and stay healthy. Did you know the recommended serving of cooked meat is 3 ounces, similar in size to a deck of playing cards? A medium piece of fruit is 1 serving and a cup of pasta equals 2 servings. A pint of ice-cream contains 4 servings. Refer to the Food Guide Pyramid for information on recommended serving sizes. 5. Eat regular meals. Skipping meals can lead to out-of-control hunger, often resulting in overeating. When you?re very hungry, it?s also tempting to forget about good nutrition. Snacking between meals can help curb hunger, but don?t eat so much that your snack becomes an entire meal. 6. Reduce, don?t eliminate certain foods. Most people eat for pleasure as well as nutrition. If your favorite foods are high in fat, salt or sugar, the key is moderating how much of these foods you eat and how often you eat them. Identify major sources of these ingredients in your diet and make changes if necessary. Adults who eat high-fat meats or whole-milk dairy products at every meal are probably eating too much fat. Use the Nutrition Facts panel on the food label to help balance your choices. Choosing skim or low-fat dairy products and lean cuts of meat such as flank steak and beef round can reduce fat intake significantly. If you love fried chicken, however, you don?t have to give it up. Just eat it less of ten. When dining out, share it with a friend, ask for a take-home bag or a smaller portion.

7. Balance your food choices overtime. Not every food has to be “perfect”. When eating a food high in fat, salt or sugar, select other foods that are low in these ingredients. If you miss out on any food group one day, make up for it the next. Your food choices over several days should fit together into a healthy pattern. 8. Know your diet pitfalls. To improve your eating habits, you first have to know what?s wrong with them. Write down everything you eat for three days. Then check your list according to the rest of these tips. Do you add a lot of butter, creamy sauces or salad dressings? Rather than eliminating these foods, just cut back your portions. Are you getting enough fruits and vegetables? If not, you may be missing out on vital nutrients. 9. Make changes gradually. Just as there are no “super foods” or easy answers to a healthy diet, don?t expect to totally revamp your eating habits overnight. Changing too much, too fast can get in the way of success. Begin to remedy excesses or deficiencies with modest changes that can add up to positive, lifelong eating habits. For instance, if you don?t like the taste of skim milk, try low-fat. Eventually you may find you slimming, too. 10. Remember, foods are not good or bad. Select foods based on your total eating patterns, not whether any individual food is “good” or “bad.” Don?t feel guilty if you love foods such as apple pie, potato chips, candy bars or ice-cream. Eat them in moderation, and choose other foods to provide the balance and variety that are vital to good health. Figuring Out Fat With so much information available about the effects of dietary fat on health, understanding the role fat plays in a well-balanced diet can be pretty confusing. To cut through the confusion, it?s important to remember that fat is an essential nutrient that everyone needs to stay healthy. Fat is a valuable energy source and carries fat-soluble vitamins needed for proper growth and development. It also contributes important taste and textural qualities that are part of enjoying food. Too much fat, however, can increase the risk of heart disease, obesity and other

health problems. When moderating fat intake, it?s important to consider these points: ●Health authorities recommend Americans to consume 30 percent or less of their total daily calories from fat, with 10 percent or less of those calories from saturated fat. Remember, the 30 percent refers to your total fat intake overtime, not single foods or meals. Use the following chart to guide your fat intake. If you eat this number of Total fat per day (grams) calories per day: 1,600 2,000 2,200 2,500 53 or less 65 or less 73 or less 80 or less Total saturated fat per day (grams) 18 or less 20 or less 24 or less 25 or less

●Use the Nutrition Facts panel on the food label to help determine how much fat is in foods. Remember, it?s the total fat intake overtime that?s important. A food high in fat can be part of a healthy diet as long as it?s balanced with other lower-fat food choices. ●All fats are a combination of saturated, polyunsaturated and monounsaturated fatty acids. Each of these types of fats have different effects on the body, but all contain nine calories per gram. ●Blood cholesterol levels are influenced by family history, weight, age, smoking, physical activity and eating habits. Studies have shown that diets which are too high in certain saturated fatty acids and dietary cholesterol can raise blood cholesterol. III. Healthy Eating for Lifetime The Food Guide Pyramid

The Food Guide Pyramid is a visual tool making it easy to see how many servings we need to eat from each food group each day. Within its six food groups, the Pyramid contains many kinds of health promoting foods. All

foods can fit into a healthy eating style. The Pyramid base, the largest area, is filled with grains. Building our diets around grains, especially whole grains, is what the food guide pyramid promotes. Eating the suggested portions from this food group will assure that more than half of our calories comes from complex carbohydrates. Moving up the Pyramid, notice the groups get smaller. Foods represented in these groups are needed in smaller amounts for good health. The tip of the Pyramid is the smallest group and should be eaten from the least: oils, fats and sweets. The Food Guide Pyramid is available in different languages representing various cultures and eating styles. There are variations for young children (Adobe .PDF format) and for seniors. There are also pyramids to help you with special eating plans——such as diabetic or vegetarian. How many servings do I need each day? The number of servings needed each day depends on age, gender and activity level. This shows the range of appropriate servings: Grains Vegetables Fruits Dairy Protein 6-11 servings 3-5 servings 2-4 servings 2-3 servings 2-3 servings

What are some examples of adult serving sizes? Grains 1 slice bread, 1/2 small bagel, about 1 cup ready to eat cereal flakes, 1/2 cup cooked cereal, rice or pasta Vegetables 1 cup raw leafy greens, 1/2 cup other vegetables——raw or cooked, 3/4 vegetable juice Fruits 1 medium apple, banana, orange, pear, 1/2 cup chopped, cooked or canned fruit, cup

1/4 dried fruit like raisins, 3/4cup 100% fruit juice Milk, Yogurt, Cheese 1 cup milk or yogurt, 1/2 ounce natural or 2 ounces processed cheese, 1 cup soy beverage with added calcium Meat, Poultry, Fish, Dried Beans, Eggs 2-3 ounces of cooked lean meat, poultry and Nuts or fish, 1 cup cooked dry beans or tofu counts as 2 ounce of lean meat, 1/2 ounce soy burger or 1 egg counts as 1 ounce lean meat, 2 tablespoons of peanut butter or 1/3 cup nuts counts as 1 ounce of meat IV. Tips On How To Make Healthier Meals Begin by choosing foods low in saturated fat, low in sodium and low in calories: ●Try fat free (skim) milk or low fat (1%) milk ●Only buy cheeses marked “low fat” or “fat free” on the package ●Choose to eat fruits and vegetables without butter or sauce ●Serve rice, beans, cereals, pasta, whole grains (e.g., couscous, barley, bulgar, etc.) ●Choose lean cuts of meat, fish, and skinless turkey and chicken ●When available, buy low- or reduced-sodium or no-salt-added versions of foods Use these recipe substitutions: ●Use two egg whites for each whole egg and


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