Unit3 Food and Culture Reading and Thinking 课件-2026-2027学年高中英语人教版选择性必修第二册

该高中英语课件围绕“健康饮食”主题，通过“如何保持健康饮食”设问导入，引导学生快速阅读分析文章结构，匹配段落主题，学习连接词用法，构建从阅读输入到写作输出的学习支架。 其亮点在于融合语言能力与思维品质培养，引用权威数据（如美国心脏协会建议）、分析连接词功能（如“however”“in other words”），设计饮食记录讨论与演讲稿写作任务，提升学生信息整合与表达能力。采用“阅读-分析-应用”教学法，学生能深化健康认知并掌握写作策略，教师可直接利用结构化资源提升教学效率。

Unit 3 Food and Culture Reading and Writing At the end of this class, you are able to learn: 1. to get the main idea and the structure of a passage ; Learning objectives 3. to use what you learnt to write an essay. 2. to understand the usage of some linking words; 2 Thinking How can we keep a healthy eating ？ 3 Fast Reading There is much debate nowadays as to what makes up a healthy diet. For example, scientists have insisted for years that a big enemy of health is fatty food. However, there is increasing evidence that the real driver of poor health is not so much fatty food, as it is sugar. Heart disease is the number one killer of Americans. And in America, people who receive 25%o of their daily calories or more through sugar are twice as likely to die from heart disease than people who receive less than 10% a day (Journal of the American Medical Association, 2014). This is true regardless of how healthy the rest of their diet might be. Put more simply, while people continue to argue over whether or not fatty food is dangerous, we already know that sugar is a killer. Much of this extra sugar comes from sweets and sweet drinks. The average American gets 1/3 of his or her sugar through sweet drinks alone. The American Heart Association recommends that we limit ourselves to less than 100-150 calories a day from sugar, which is less than what is usually contained in one can of sweet drink or in a single candy bar. In other words, if you want to be healthy, you have to cut down on desserts, and cut out sweet drinks altogether. Beyond this, you can keep healthy by consuming different categories of fresh foods, especially fruit and vegetables, which are full of vitamins and fibre, rather than processed foods. Processed foods often contain less nutrition, and have higher quantities of sugar, salt, and fat than fresh ingredients. Besides this, it is also important to have some meat, beans, or dairy products in your diet, as they provide the necessary protein for strong bones and muscle growth. As with everything in life, moderation is key. The ideal diet is a balanced one, without too much or too little of any one thing. Finally, a fundamental key to healthy eating is to eat slowly. It takes about twenty minutes from the time you start eating for your brain to tell your body that you are full. What this means is that people who chew too quickly end up eating too much food because they still feel hungry. Eating slowly also allows your body to digest your food better, and will allow you to enjoy your food more. In addition, studies show that consistent eating habits, for example, taking three meals a day at the same time each day, are better for our health. It is also better to eat a modest amount of food each time, rather than to eat a lot in one meal, and then a little in the next. There is no one trick to healthy eating. Rather, healthy eating starts with having a healthy attitude towards food. One question you can ask yourself is, “Do I eat to live, or live to eat?” If you are using food mostly for nutrition, then you are on the right track with your diet. However, if food has become the centre of your life, you might be on the road to bad health. It is up to you to decide how you want to live, and to make the right decisions about your diet. 4 Match the subheadings with the paragraphs. Paragraph 1. Paragraph 2. Paragraph 3. Paragraph 4. Paragraph 5. Slow Eating is Good Reducing Sweets is Key The Way You Look at Food is Most Important Keep It Fresh and Balanced The Real Killer is Sugar Fast Reading 5 Fast Reading 1. There is much debate nowadays as to what makes up a healthy diet. For example, scientists have insisted for years that a big enemy of health is fatty food. However, there is increasing evidence that the real driver of poor health is not so much fatty food, as it is sugar. Heart disease is the number one killer of Americans. And in America, people who receive 25%o of their daily calories or more through sugar are twice as likely to die from heart disease than people who receive less than 10% a day (Journal of the American Medical Association, 2014). This is true regardless of how healthy the rest of their diet might be. Put more simply, while people continue to argue over whether or not fatty food is dangerous, we already know that sugar is a killer. The Real Killer is Sugar 6 2. Much of this extra sugar comes from sweets and sweet drinks. The average American gets 1/3 of his or her sugar through sweet drinks alone. The American Heart Association recommends that we limit ourselves to less than 100-150 calories a day from sugar, which is less than what is usually contained in one can of sweet drink or in a single candy bar. In other words, if you want to be healthy, you have to cut down on desserts, and cut out sweet drinks altogether. Reducing Sweets is Key Fast Reading 7 3. Beyond this, you can keep healthy by consuming different categories of fresh foods, especially fruit and vegetables, which are full of vitamins and fibre, rather than processed foods. Processed foods often contain less nutrition, and have higher quantities of sugar, salt, and fat than fresh ingredients. Besides this, it is also important to have some meat, beans, or dairy products in your diet, as they provide the necessary protein for strong bones and muscle growth. As with everything in life, moderation is key. The ideal diet is a balanced one, without too much or too little of any one thing. Keep It Fresh and Balanced Fast Reading 8 4. Finally, a fundamental key to healthy eating is to eat slowly. It takes about twenty minutes from the time you start eating for your brain to tell your body that you are full. What this means is that people who chew too quickly end up eating too much food because they still feel hungry. Eating slowly also allows your body to digest your food better, and will allow you to enjoy your food more. In addition, studies show that consistent eating habits, for example, taking three meals a day at the same time each day, are better for our health. It is also better to eat a modest amount of food each time, rather than to eat a lot in one meal, and then a little in the next. Slow Eating is Good Fast Reading 9 5. There is no one trick to healthy eating. Rather, healthy eating starts with having a healthy attitude towards food. One question you can ask yourself is, “Do I eat to live, or live to eat?” If you are using food mostly for nutrition, then you are on the right track with your diet. However, if food has become the centre of your life, you might be on the road to bad health. It is up to you to decide how you want to live, and to make the right decisions about your diet. The Way You Look at Food is Most Important Fast Reading 10 Match the subheadings with the paragraphs. Paragraph 1. Paragraph 2. Paragraph 3. Paragraph 4. Paragraph 5. Slow Eating is Good Reducing Sweets is Key The Way You Look at Food is Most Important Keep It Fresh and Balanced The Real Killer is Sugar 11 What are the key details that support each point ？ And how does the author support his /her opinion？ Learn the structure and language A.The real driver of poor health is not so much fatty food, as it is sugar. Details: B. Much of this extra sugar comes from sweets and sweet drinks. C. You can keep healthy by consuming different categories of fresh food...rather than processed foods. D. A fundamental key to healthy eating is to eat slowly. Details: Details: Details: Pay attention to some useful linking words in these paragraphs. 12 What are the key details that support each point ？ Learn the structure and language A.The real driver of poor health is not so much fatty food, as it is sugar. Detail 1: Heart disease is the number one killer of Americans. And in America, people who receive 25% of their daily calories or more through sugar are twice as likely to die from heart disease than people who receive less than 10% a day. Detail 2: Thinking: How does the author support his /her opinion？ 13 Learn the structure and language There is much debate nowadays as to what makes up a healthy diet. For example, scientists have insisted for years that a big enemy of health is fatty food. However, there is increasing evidence that the real driver of poor health is not so much fatty food, as it is sugar. Heart disease is the number one killer of Americans. And in America, people who receive 25% of their daily calories or more through sugar are twice as likely to die from heart disease than people who receive less than 10% a day (Journal of the American Medical Association, 2014). This is true regardless of how healthy the rest of their diet might be. Put more simply, while people continue to argue over whether or not fatty food is dangerous, we already know that sugar is a killer. To introduce another way of saying what was already mentioned: put more simply By contrasting:however By citing figures:25%; 10% Giving examples 14 What are the key details that support each point ？ And how does the author support his/her opinion？ Learn the structure and language B. Much of this extra sugar comes from sweets and sweet drinks. Details: The average American gets 1/3 of his or her sugar through sweet drinks alone. 15 Learn the structure and language Much of this extra sugar comes from sweets and sweet drinks. The average American gets 1/3 of his or her sugar through sweet drinks alone. The American Heart Association recommends that we limit ourselves to less than 100-150 calories a day from sugar, which is less than what is usually contained in one can of sweet drink or in a single candy bar. In other words, if you want to be healthy, you have to cut down on desserts, and cut out sweet drinks altogether. To introduce another way of saying what was already mentioned: in other words = put more simply 16 What are the key details that support each point ？ And how does the author support his/her opinion？ Learn the structure and language Detail1: C. You can keep healthy by consuming different categories of fresh food...rather than processed foods. Processed foods often contain less nutrition, and have higher quantities of sugar, salt and fat than fresh ingredients, Detail 2: Besides this, it is also important to have some meat, beans, or dairy products in your diet, as they provide the necessary protein for strong bones and muscle growth. 17 Learn the structure and language Beyond this, you can keep healthy by consuming different categories of fresh foods, especially fruit and vegetables, which are full of vitamins and fibre, rather than processed foods. Processed foods often contain less nutrition, and have higher quantities of sugar, salt, and fat than fresh ingredients. Besides this, it is also important to have some meat, beans, or dairy products in your diet, as they provide the necessary protein for strong bones and muscle growth. As with everything in life, moderation is key. The ideal diet is a balanced one, without too much or too little of any one thing. To list or add information: beyond this; besides this 18 What are the key details that support each point ？ And how does the author support his/her opinion？ Learn the structure and language Detail1: D. A fundamental key to healthy eating is to eat slowly. People who chew too quickly end up eating too much food because they still feel hungry . Detail 2: Eating slowly also allows your body to digest your food better and allow you to enjoy your food more. 19 Learn the structure and language Finally, a fundamental key to healthy eating is to eat slowly. It takes about twenty minutes from the time you start eating for your brain to tell your body that you are full. What this means is that people who chew too quickly end up eating too much food because they still feel hungry. Eating slowly also allows your body to digest your food better, and will allow you to enjoy your food more. In addition, studies show that consistent eating habits, for example, taking three meals a day at the same time each day, are better for our health. It is also better to eat a modest amount of food each time, rather than to eat a lot in one meal, and then a little in the next. To list or add information: finally; in addition By contrasting: rather than to introduce another way of saying what was already mentioned: what this means is that... 20 When we express an opinion, we use some key details to support, such as giving some examples, citing some figures etc. Learn the structure and language 21 1.To introduce another way of saying what was already mentioned: However; While; Rather than; Put more simply; What this means is that; In other words 2.To show that contrasting ideas are being introduced: 5.To list or add information: beyond this; besides this; in addition; finally... Learn the structure and language 22 Write down everything you ate and drank over the last three days. And share your ideas about your eating habits, whether they are healthy or not？ Discussion rice tofu eggs noodles bread potatoes cabbage tomatoes meat fish chicken nuts oranges peas cucumber sugar mushrooms apples milk bananas beef pumpkin ... There is no one trick to healthy eating, we should start with having a healthy attitude towards food, and make the right decision about our diet. 23 如今，校园内有许多学生的饮食习惯不健康，为帮助他们养成良好的饮食习惯，假设你是学校学生会主席，下周要代表同学们发表一个主题为healthy diet 的演讲 ，内容包括： 1.健康饮食的重要性； 2.不健康的饮食现象，比如，吃零食；挑食，不吃早餐等； 3.健康饮食习惯的具体建议 注意：1.100词左右；2.可适当增加细节，以使行文连贯。 Writing Useful expressions: do harm to...对......有害 be particular about sth.对某物挑剔 have snacks吃零食 build up one’s body增强某人的体质 form good habits of doing sth.养成做某事的好习惯 24 Writing Greetings+Topic Salutation: Dear teachers and classmates Para 1: Para 2: Body : bad eating habits+suggestions Para 3: Closing: Restating the theme + expectations Simple present A speech useful expressions : It’s my honor to deliver a speech here. From my point of view, we should... Only in this way can we... 25 Evaluation Checklist 1.Is the handwriting easy to read? 2.Does the writer use linking words correctly? 3.Does the writer use proper expressions in the speech ? 4.Does the writer use correct details to support his or her opinion ? 5.Are all parts of the speech included and organized in a good order? 26 Sample 27 Summary and Homework Homework 1.Review what you learnt in this lesson. 2.Correct and polish your essay according to what you learnt today. A passage about healthy eating some linking words: put more simply;what this means is that ; however; while... How does a author support his /her opinion？ ---Use some key details. 28 $