1、Unit 2Healthy eatingWarming up必修三What do you usually have for breakfast?fried dumplingssteamed dumplingstwisted cruller pan cakeWhat do you usually have for lunch?steamed breadricefishmeatshrimpWhat do you usually have for supper?porridgenoodlesdumplingspaghettiEverybody has to eat,but do you eat a
2、healthy diet?Do you know that the food you eat helps you grow in different ways?nutrientsmineralsfatproteinvitaminsugarcarbohydratesSome essential nutrientsfibreThe Healthy Diet Pyramidfatprotein 蛋白质fibres,sugarvitaminsThere are no healthy or unhealthy foods-only healthy or unhealthy diets.fruit veg
3、etablesbread,other cereals potatoesmeat,fish alternativesfoods containing fat,foods drinks containing sugarmilk dairy foodsA balanced diet simply means a bit of everything,including meat,fish,vegetables and fruit.A balanced diet must contain carbohydrate,protein,fat,vitamins,mineral salts and fiber.
4、It must contain these things in the correct proportions.carbohydrates:these provide a source of energy.proteins:these provide a source of materials for growth and repair.fats:these provide a source of energy and contain fat soluble vitamins.vitamins:these are required in very small quantities to kee
5、p you healthy.mineral salts:these are required for healthy teeth,bones,muscles etc.fibre:this is required to help your intestines function correctly;it is not digested.rice,noodles,bread,potatoes,chocolate,butter,cream,oils,nutsspaghetti1.Food that mainly provides energydumplingsnoodleswontonsteamed
6、 twisted rollschocolatecreambutteroilpeanutchestnutwalnutnutsmeat,milk,eggs,cheese,tofu 2.Food that can helps us grow bones and musclecrabshrimpmuttonroast duck3.Food that helps the body fight diseasesmost vegetables:(eg,beans,peppers,eggplants,cabbage)and fruit:(eg,apples,peaches,oranges,lemons)cuc
7、umberbeansmushroomspepperspumpkinpeaeggplantcabbagescelerycarrotstrawberrypineapplecherrypearpeachlemonDiscussionWhich group of food do you like best?Which do you eat most often?Do you eat the three kinds of food each day?What will happen to you if you dont eat a balanced diet?If we dont eat a balan
8、ced diet,what may happen?too fattoo thinI like the things.I often eat them too much.I do not like them at all.Which food contains more?Examples of foodsAnswersugarchocolate or grapecakes or bananasfatcream or ricechocolate or chickenfibrepeas or nutspork or cabbageproteinpotato crisps or hameggs or
9、creamchocolatecakescreamchocolatenutscabbagehameggsWestern food:too much fat(meat,potato chips,butter,cream and chocolate),too much sugar(cakes,soft drinks,sweets)Which one is healthier,the Chinese food or Western food?Chinese food:the healthiest diet,a lot of fruit and green vegetables,rich in fibe
10、r,low in sugarWhich is healthy food and which is junk food?food that is not healthy,because it contains a lot of fat,sugar etc.Junk foodJunk food is an informal term applied to some foods which are perceived to have little or no nutritional value,or to products with nutritional value but which also
11、have ingredients considered unhealthy when regularly eaten,or to those considered unhealthy to consume at all.food that contains a lot of vitamins,fibers etc.Healthy food1.Everybody has to eat,but do you eat a healthy diet?diet和food都有“食物”的意思。但diet指的是习惯的食物或规定的食物,特指维持健康的食物,如病人的疗养食物。food是一般指凡能吃能喝的具有营养的
12、东西,是不可数名词；但表示种类时是可数名词。The doctor has ordered me a special diet.Too many sweet foods will make you fat.The doctor put him on a _ to keep thinner.We have _ to live,but not live to eat.The patient mustnt go without _,but she should have a _ without sugar.dietfoodfooddietProper _ and exercise are both i
13、mportant for health.Many sweet _ are on sale in the storeMilk is the _ for babies.foods diet food a balanced dietbe on a diet均衡饮食节食2.balanced diet 1)balanced 在此用作形容词,意为“平衡的”,“均衡的”You ought to have a balanced state of mind.你应该保持心态平衡。2)v.使均衡,收支平衡Try to balance your diet by eating more fruit.多吃一些水果,使饮食
14、均衡。3)n.平衡,天平请争取把工作和娱乐更好地结合起来。Please gain a better balance between work and play.be out of balance 不平衡keep ones balance 保持平衡lose ones balance 失去平衡a favorable balance 入多于出a unfavorable balance 入不敷出根据下列各句句意及所给单词的首字母或汉语提示,写出所缺单词的正确形式。1.Proper d_ and exercise are both important for health.2.Sunscreen pro
15、vides a p_ layer against the suns harmful rays.ietrotective3.There are many types of wild _(蘑菇)and some are poisonous.4.We should decide after b_ the advantages and disadvantages.5.If you like hot food you can add some p_ to it.mushroomsalancingepper(s)用适当的介词填空。1.People learn things _ different ways
16、 some learn by doing;others by reading or by listening.2.What has happened _ such a good man?into3.The meat of this kind of animal should not go _ the menu of the restaurant.4.A man visiting his school wants to invite his teacher _ dinner.intofor/toHomeworkWrite a passage about healthy eating in about 120 words.
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