【课件】Unit3Usinglanguage课件人教版（2019）高中英语选择性必修第二册

1、Healthy EatingGreen FoodBrainstormWhat do you think makes up a healthy diet? balanced diet Healthy EatingPrediction:What will be talked about in the passage?What is a healthy diet ?How can we eat healthily?Where is this text most likely from? A. A novel. B. A guidebook. C. A diary. D. A magazine.Rea

2、d the passage and match each paragraph with its main idea.Para.1A.Slow Eating is Good.Para.2 B.Reducing Sweets is Key.Para.3 C.The Real Killer is Sugar.Para.4 D.The Way You Look at Food is Most Important.Para.5 E.Keep It Fresh and Balanced.There is much debate nowadays as to what makes up a healthy

3、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

4、 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.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 dange

5、rous, we already know that sugar is a killer.Para.1 Topic sentence _ transitional/ signal / linking words?How does the author develop the paragraph ?By analysing dataMuch of this extra sugar comes from sweets and sweet drinks. The average American gets 1/3 of his or her sugar through sweet drinks al

6、one. 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

7、 out sweet drinks altogether.Para.2 Topic sentence _ transitional/ signal / linking wordsWhat is the key detail that support the point?Where can we get sugar?Much of this extra sugar comes from sweets and sweet drinks.By analysing dataBeyong this, you can keep healthy by consuming different categori

8、es of fresh foods, especially fruit and vegetables, which are full of vitamins and fiber, 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

9、or dairy products in your diets, 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. Para.3 Topic sentence _ transitional/ signal / linking words_Wh

10、y shouldnt we eat more processed food?How does the author convince us of it?By comparison Slow Eating is Good.Why 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.20min.mouthPara.4 Wha

11、t is the key detail that support the point?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.What other suggestions does the author give?consistent eating h

12、abitsa modest amount of foodThere 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 y

13、our 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.Para. 5Topic sentence transitional/ signal / linking words_ What is the function of “ However” ?diffe

14、rent answers to the questionconsume fresh and balanced foods rather than processed foodsconsistent: three meals a day at the same time ;a modest amount of foodcut down on dessertscut out sweet drinks eat slowly healthy eating habitsLinking wordsfunctionlinking wordsintroduce another way of saying wh

15、at is already mentioned showcontrasting ideas are being introducedhowever put more simply (简而言之)in other words (换句话说)what this means (这意味着)regardless of (不管, 不顾)rather than (而不是)rather (恰恰相反; 而是) Write down everything you have eaten and drunk over the last three days. And share your ideas about your

16、 eating habits, whether they are healthy or not?What I ate/ drink over the last 3 daysAdvice from the testFacts about diet and nutritionMy good habitsMy bad habitsWays to improve my eating habitsbread, milk, egg, noodles, rice, pork, beef, mutton, chicken, fish,cabbage, lettuce, carrot, cucumber, to

17、matoCut down on desserts; Keep a balanced diet; Eat slowly;Eat a modest amount of food; Have a healthy attitudeSugar is a killer; Fruit and vegetables are full of vitamins;Processed food contains .; It takes about 20 mins .Taking three meals at the same time each day; Seldom drinking sweet drinks; E

18、ating fruit and vegetablesEating too much; Eating too fast; Having processed food.Possible version: Only after writing down what I have eaten over the last three days, do I realize how healthy/ unhealthy my eating habit is. There are some foods that I shouldnt eat too much. For example, I like eatin

19、g processed food rather than fresh food because of its convenience. However, as we all know, processed food often contain less nutrition, and have higher quantities of sugar, salt, and fat than fresh ingredients, which is certainly not good for health. Therefore, I should improve my bad eating habit

20、s by cutting down eating processed food. As long as I follow a balanced diet, I am convinced that I will be much healthier and happier. 假如你是李华,你的朋友迈克(Mike)在饮食方面存在一些问题:不太喜欢吃蔬菜、鸡蛋和粗粮;不爱喝牛奶。请就以下要点给他写封信,建议他改变这种不良的饮食习惯。要点:1.平衡膳食结构的重要性;2.新鲜蔬菜、鸡蛋、粗粮、牛奶等与身体健康的关系;3.祝他身体健康,学习进步。注意:1.词数80左右;2.可适当增加细节以使行文连贯。参考词汇:粗粮coarse grain;效率efficiencyDear Mike,_ Yours, Li Hua attach greater importance to sth. do harm to sth. be of great benefit to sth. develop good habits build up strong body Youd better . Youre supposed to do sth. It is advisible to do sth. It is time to do sth. It is