高中英语 Unit 2 Healthy eating 教案 新人教版必修3

Unit 2 Healthy eating 单元教学目标技能目标Skill GoalsTalk about healthy dietMake suggestions or giving advice on dietDistinguish the meanings of Modal verbsMake a balanced menuII 目标语言功能句式Practice talking about your ideasYes, I think so. I dont think so.I agree.I dont agree.Thats correct. Exactly.Thats exactly my opinion.Youre quite right.I dont think you are right.I quite agree with you.Im afraid I dont agree / disagree with you.Of course not.Im afraid not.All right.Thats a good idea.Certainly. / Sure.No problem.Practice giving advice and suggestionsYou must / must not.词汇1. 四会词汇diet, energy, fiber, digestion, bean, cucumber, mushroom, lemon, balance, ham, mutton, roast, slim, curiosity, raw, lie, research, customer, weakness, strength, rid, amount, debt, glare, gently, limit, benefit, sigh, combine, item, packet, tin2. 认读词汇protective, spaghetti, protein, crisp, kebab, sugary, muscle, calmly, cooperation3. 词组get tired of, throw away, get away with, tell lies, get rid of, earn ones living, in debt, set out, run ones business, carry on语法The use of ought to1. StatementsYou ought to cook fresh vegetables and meat without too much fat if you want to stay slim.You ought not to eat the same kind of food at every meal.2. DifficultyDistinguish and summarize the usage of ought to and should. 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。1.1WARMING 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.1.2PRE-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。1.3READING 讲述王鹏伟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。但王鹏伟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。1.4COMPREHENING 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。1.5LEARNING 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。1.6USING 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 Warming up and Reading2nd period Language study3rd period Listening4th period Extensive reading5th period Speaking6th period Writing. 分课时教案The First Period Warming up and ReadingTeaching goals 教学目标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 researchb. 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 couldnt 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 dont have a balanced diet?b. Understand the text and answer the following questions.What happened to Wang Pengweis restaurant?Why would his customers prefer to eat at Yong Huis restaurant?What did he do after leaving Yong Huis restaurant?c. Understand the details about the text and retell the text in the role of Wang Pengwei.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 Pengwei?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 教学过程与方式Step I Warming upReview the words of foods by showing their pictures. First, ask students to list the foods they like best. Then tick off 3 of them they eat most often. Second, show the three groups of foods and see which group their foods belong to. Third, ask students to tell us in what ways their foods help them grow.T: There are so many delicious foods. Whats your favorite?S1: I love eating meat, sugar and bread. My mother is sure to cook meat for me every day. I enjoy all kinds of meat, such as roast pork, beef, mutton kebabs and fried chicken. I have been used to eating sweets or bread while watching TV.T: So what have happened to you?S1: I am getting fatter and fatter. They all call me a big couch potato. But I cant resist the attraction of them.S2: I often eat vegetables, fruits and noodles. In order to keep slim, I only have a bowl of noodles each time. My parents are worried about my health. But I think it is worth the loss.T: You have enough fiber. Would you mind me asking you a question? Do you often get tired while you are at school?S2: Very often. I feel I ought to get more energy.T: Now do you think we should eat each kind of food?S: Yes. We need every kind of food to give us energy, fiber, protein and minerals so as to grow healthily.T: So what does healthy eating mean?S: Healthy eating means a balanced diet.T: Right. Eating properly and maintaining a healthy weight are extremely important for us students, because we are growing and going through major changes to our body, mind and emotions. So remember the three groups of food: energy-giving, body-building and protective foods.Step II Pre-readingGet the students to discuss the questions with their partners in this part. Then ask them to report their work. This part will help the students understand the text.T: Please look at the slide show and discuss the questions with your partners. Then Ill ask you to report your work. Are you clear?Which food contains more.?Examples of foodsAnswersugarchocolate or grapescakes or bananaschocolatecakesfatcream or ricechocolate or chickencreamchocolatefiberpeas or nutspork or cabbagenutscabbageproteinpotato crisps or hameggs or creamham eggsS: For the fattest food, the correct order I think is ice-cream, eggs, chicken, rice and peaches.T: Do you agree with her / him?S: Yes, I do.Step III ReadingGet the Ss to comprehend the passage quickly and accurately and meanwhile help the Ss to form a good habit of reading. Teacher gives the Ss a couple of minutes to look through the whole passage. Tell the Ss to read the text silently and then ask for the main idea of the text on the slide show with their partners. Teacher encourages the Ss to express their ideas.T: What health problem do you know are connected with eating?S: Too fat, too thin, anorexia, heart attack and high blood pressure.T: In the USA there are a lot of people who are fat or getting fat. They have health problems as a result of not eating properly. So the whole society is concerned about what people can do to help them lose weight and keep fit. In order to satisfy peoples need and especially to continue to share the market, the famous fast food chain McDonalds restaurants develop a new kind of potato crisps and put a lot of cabbages into their hamburgers. Here were going to learn a story about a competition between two restaurants. Lets see whats the result.Fast readingIn this part the teacher should ask the students to read the passage quickly for the first time to find out the main idea of the text. Then ask them to read the text again carefully to obtain some details. Before reading show the tasks on the screen and let the students read the sentences first. This task can help them have a good understanding about the text.1. The two restaurants supplied the healthy diet.2. The reason why Yong Huis restaurant was so popular with customers.3. Wang Pengwei found out why he had lost his customers and decided to win them back.T: At first Id like you to read the text quickly to get the general idea of the text. Pay attention to the sentences which contain modal verbs.(2 minutes later)T: Stop here. Which one do you prefer?Ss: Wed prefer the third sentence.T: Why do you prefer it?S1: As far as I can see, it is the third sentence. The first one is not true because they didnt supply the healthy diet. And the second sentence is a piece of information about Yong Huis restaurant we can get from the text.T: Do you agree with her/ him?S2: Yes. Thats exactly my opinion. In this story Wang Pengwei is one of the leading characters. This part only tells us how the competition began and what Wang Pengwei would do next.T: Well done.Careful readingT: Now, its the time for us to read the text carefully and decide which sentences are true. Then correct the false ones. First read the sentences.1. Usually Wang Pengweis restaurant was full of people.2. He provided a balanced diet in his menu.3. Yong Hui served a balanced diet.4. Yong Hui could make people thin in two weeks by giving them a good diet.5. Wang Pengweis customers often became fat after eating in his restaurant.6. Yong Huis menu gave them energy foods.7. Wang Pengweis menu gave them foods containing fiber.8. Wang Pengwei admired Yong Huis restaurant when he saw the menu.9. Wang Pengwei decided to copy Yong Huis menu.Give the students 7 minutes to read the text and to think over or discuss the questions. The teacher should walk around the classroom to help those students who need help.Ss: a. Sentence 1 is true. We can see it from the sentence “His restaurant ought to be full of people.”b. Its false. He didnt provide a balanced diet in his menu, because his menu made people fat.c. Its false. Yong Hui didnt serve a balanced diet either, because her menu only served people with protective foods.d. Its false. I dont think Yong Hui gave them a good diet. She could make them not only thin but also unhealthy by only giving them raw vegetables, fruits and water.e. Sentence 5 is also true. Because people wouldnt go to Wang Pengweis restaurant and his menu is full of fat and sugar.f. Its false. Yong Hui gave them protective foods.g. Its false. Wang Pengweis menu gave them foods containing much fat and energy.h. Its false. Wang Pengwei didnt admire her when he saw the menu. He didnt believe what she said and planned to stop her from telling lies.i. Its false. He decided to improve his menu to compete against her.Step IV ComprehendingBy now, the students have had a further understanding about the text. Let the students read the text again and find out the differences between the two restaurants.T: Now please read the passage again and fill in the chart on the screen together with your partners.advantagesdisadvantagesWang Pengweis restaurantNot giving enough foods containing fiberProviding plenty of energy foodsYong Huis restaurantNot giving enough energy foodsProviding plenty of fiber foods.Next discover whether the students have understood the ideas in the reading passage.T: Until now we have known whats wrong with both restaurants. What does it matter if you only eat at one of the restaurants?S1: If we often eat at Wang Pengweis restaurant well become too fat which can lead to illnesses such as heart attack or high blood pressure.S2: If we often eat at Yong Huis restaurant, well become too thin and suffer illnesses such as anorexia or malnutrition.T: That sounds dangerous. How can they make a balanced diet?S3: I think both restaurants should supply all kinds of foods so that every customer can eat a little of each kind at the same time. As a result, we dont worry about what they will lack of.S4: I dont agree with you. Its not realistic. In my opinion, Yong only receives fat people and help them lose weight; Wang only receives slim people and help them to get enough energy.S5: Im afraid I cant agree with you all. I hope the two restaurants will join together as a new one which has all the advantages and avoids the disadvantages.T: You all have a point there. But what will they do? We will see it next class. Facing the serious competition, Wang wasnt lost in sadness and he didnt quarrel with his competitor either. He went to the library to learn more about healthy eating and made his menu better than Yong Huis menu. Do you think we should follow his example?S6: Thats correct. Exactly.T: Good. Whats your opinion of Yong Hui? Is what Yong Hui did right? Why?S7: I dont think she is right. Yong Hui didnt give us a good diet. She could make us not only thin but unhealthy if we often eat there. She made an unhealthy menu to agree with the fashion and her meal was too expensive. She cheated the customers and they didnt know they would become unhealthy if they often ate there. So I wouldnt go there to have a meal.ExplanationT: Now lets deal with some language points. Turn to Page 10. Lets look at the sentences:Wang Pengwei sat in his empty restaurant feeling very frustrated.This sentence means that the