03级英语本科四班 姓名:刘小曼 学号:20030614154.

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Presentation transcript:

03级英语本科四班 姓名:刘小曼 学号:20030614154

Lesson 58 What Is A Healthy Diet Unit 13 Lesson 58 What Is A Healthy Diet

Teaching Aids Teaching Aids: individual, pair or group work to make every student work in class. 1.Aims of knowledge: learn and master the phrases, new words. 2.Ability aims: 1.train the students’ speaking ability by describing, talking and discussion. 2.Improve the students’ reading comprehension through reading activities. 3.Develop the students’ speaking comprehension through reading activities.

Moral aims Teaching important point Enable the student to understand the best way to make sure that we will fell and look fine is to develop healthy eating by learning the reading text. Teaching important point 1.Improve the students’ reading ability. 2.Master the following phrase : be rich in, be low in, burn up, be considered to be

Teaching difficult points How to make the students understand the reading material better and answer some question on the passage. Teaching Aids 1: a tape recorder 2:a computer for multimedia use

Step1. Lead in Good morning class. Today we will learn lesson 58. The title is “what is a healthy diet?” First I will ask you a question : “Can you tell me some kinds of Chinese traditional food you like?” Of course. These are a lot of. For example: Dumplings, Noodles, New year’s cake(年糕), Glutinous rice dumpling(粽子) and so on. And foreign food? Hamburger, bread, butter, cream, potato crisps, chocolate Different country have differ food because of their different diet culture, but which kind of food on earth is the healthy food? You will find the answer in the text.

Important phrases 1.be rich in: producing or having a large supple of something 生产,丰富 be low in: which is opposite of “be rich in” e g.富于幽默的倨. A play rich in humor. 橙子含有丰富的维生素C. Oranges are rich in vitamin C. 2.be considered to be: regard sb /sth as sth认为,视为. 这个问题被看的很严重. This problem is considered to be very serious.

Important phrases 他被看作民族英雄. He is considered to be national hero. 3.put on weight: become heavier; grow fat (指人)增加体重,长胖 Lose/ take off weight 减轻体重,变苗条. E g; 他自从戒烟以后就增重很多. He’s put on a lot of weight since he gave up smoking.

Step2 Fast reading Turn to page 2, please read the whole passage quickly and try to answer the questions on the blackboard. 1. which country’s diet is considered to be the healthiest in the world? Why? The Chinese diet. Because it contains a lot of fruit and green vegetables. It is rich in fiber and low in sugar and fat. 2. Why lots of people in China have white teeth? The Chinese eat less sugar than many other countries in the word. 3.Why western foreigners put on weight easily? Because their diet contains a lot of sugar in the form of cakes, soft drinks, sweets and so on.

Step3: Carefully reading 1.what’s the main idea of each paragraph? Para2:People need energy to live. Para3:The Chinese diet is considered to be the healthiest in the world. Para4:People in the western world do not eat such healthy foods.

Step4: Work in pairs and discuss the following question. What is a healthy diet? A healthy diet contains a lot of fruit and green vegetables, which rich in fiber and low in sugar and fat. Step5:Homework Retell the text.

健康饮食 吃饭是再也平常不过的事,然而人类通过漫长的历程才从“吃饱求生存”发展到懂得“吃好求健康 ” 要想身体健康,保持良好的饮食习惯非常重要。因为人之所以能够维持生命、工作、思维,都依靠食物中的营养供应. 著名的维多利亚宣言提出健康生活方式的四大基石——即“合理膳食、适当运动、戒烟限酒、心理平衡”,居于首位的就是合理膳食。中华民族自古就有“寓医于食”的传统,食疗养生的理念被人民群众广泛接受。“饮食者,人之命脉也”。则是明代医药学巨匠李时珍对膳食营养的健康作用所做的高度概括。

平衡、健康的膳食结构在东方、在中国 20世纪,营养学的最大贡献是建立了平衡膳食的理论。所谓平衡膳食,就是强调由多种天然食物组成的膳食,可提供人体基本的营养需要,在支持正常发育、保持合适体重,预防营养不良的同时,减少同营养过剩相关疾病的发生 《中国居民膳食指南》 一、食物多样,谷类为主; 二、多吃蔬菜、水果和薯类; 三、每天吃奶类、豆类或其制品; 四、经常吃适量鱼、禽、蛋、瘦肉,少吃肥肉和荤油; 五、食量与体力活动要平衡,保持适宜体重; 六、吃清淡少盐膳食; 七、饮酒要适量; 八、吃清洁卫生、不变质的食物。

文明病 常言道“病从口入”,过去多半指吃了不洁的食物得病,现在它的涵义广泛了,即因食物结构不合理而引起的慢性非传染性疾病也包括在内    常言道“病从口入”,过去多半指吃了不洁的食物得病,现在它的涵义广泛了,即因食物结构不合理而引起的慢性非传染性疾病也包括在内   营养过剩正在危害健康,各种致命的慢性病——肥胖、高血压、高血脂、冠心病、脂肪肝、动脉硬化、糖尿病等发病率大幅度提高。   近十几年来,随着经济的发展,国人膳食结构发生明显变化。以上海为例:1992年该市城乡居民粮食摄入量比1982年减少了22%,动物性食物的消费增加了1.5倍,其中畜肉上升了3.6倍、乳制品增加了5倍,油脂消费增加约70%;吃高热量、高脂肪、高蛋白质的“洋快餐”,喝含糖洋饮料日趋普遍。脂肪提供的热量从1959年的9%上升到27%,超过全国城市平均水平(25%),并已高于日本(24%)。与此同时,恶性肿瘤、脑血管病、心脏病已成为该市头三位死亡原因,与饮食营养关系最密切的心脏病死亡率已超过日本,与战后日本的变化极为相似。这一切都非常清楚地说明:随着膳食结构“西化”,“文明病”已登陆中国。

“洋快餐”进军中国,“垃圾饮食”危害健康!       2002年2月15日,埃菲社记者   发自北京的报道:“中国传统深受西方风尚冲击”,文章说:“从战国时代以来的数千年中,中国的古老传统一直得以保存,但现在却仿佛屈服于不可抗拒的西方生活方式。……从美国那里,他们模仿到的是最糟糕的东西——“洋快餐”。中国已是麦当劳、肯德基在全球的第二大市场”。2002年1月14日美国《基督教科学箴言报》题为“中国胖子在忙着减肥”的文章尖锐地指出:“汹涌而来的‘洋快餐’是造成这一局面的主要原因”。

“快餐咬了中国文化一口”            在中国、41%的受访者每周至少要吃一次“洋快餐”,而在美国这个数字为35%。文章披露:麦当劳在中国105个城市有600多家分店;肯德基炸鸡店在中国则拥有1200家分店,2004年一年新开了270家分店,2005年至少还要开张200家。文章说:“中国目前约有两亿人体重超重,600万人肥胖。公共医疗专家认为,‘洋快餐’消费日益增多是造成中国糖尿病和高血压发病越来越多的首要原因。”

.“洋快餐”危及食品慢性安全      纽约时报》题为“所有的‘进步’都在渐渐危害生命”                    的文章指出:正是由于美国社会底层的穷人大量食用“垃圾食品”——双料三明治、鸡肉汉堡包、特大匹萨饼(必胜客)、大包装的油炸土豆条等,使他们成为美国最容易发胖的人群。美国国民普遍肥胖的现实,反映出西方社会取得的“进步”具有深刻内在的矛盾性。2000年因饮食不当和缺少运动,导致10万美国人死亡,在美国死于肥胖的人数是死于传染病人数的5倍。一则西方媒体的漫画,在汉堡包、热狗、炸薯条、冰淇淋等“洋快餐”旁边写着:“我们杀死的美国人和香烟杀死的一样多!”。美国联邦疾病控制中心(CDC)指出:“目前有64%的美国人体重严重超标,肥胖对健康的危害不久将超过烟草、成为美国的首位死因 .

关注食疗——“寓医于食”             “国以民为本,民以食为天”。科           学、合理的膳食结构与民族昌盛、国家繁荣息息相关。我们的祖先为了生存,尝百草、吃野果,在与自然界的斗争中,体会到许多食物和防病、治病有不解之缘。中华民族在九千年前就掌握了酿酒术,酒既可作饮料,又可活血、养气、暖胃、驱寒,中医素有“医源于酒”之说。自古以来,“食用、食养(食补)、食疗(食治)、食忌(食禁)”这些贯穿日常生活的膳食原则,使“药食同源,寓医于食”的理论得到了广泛的实践。作为世界四大文明古国之一,中国在灿烂的文化遗产中积累了世代相传的、应用食疗强健体魄、抵御衰老、延年益寿的丰富经验。这一运用膳食防治疾病的生活内容不仅使中华民族繁衍昌盛,也造就了华夏古老文明的成就之一。