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1、Unit2HealthyeatingUnit2HealthyeatingWhatarethethreeessentialelementsfor ushumanbeingstosurviveontheearth?waterairfoodHerearesomeproverbsaboutfood:Breadisthestaffoflife.民以食为天。Youarewhatyoueat.吃什么食物变什么样。Eattolive,butdonotlivetoeat.为生活而饮食，莫过于为饮食而生活。Lookatth
2、epicturesandreviewsomenewwordsaboutfood.cucumbereggplantpeppermushroompeachlemonpeabeannutsmuttonmuttonkebabsroastporkfriedpotatoesWhatwillhappenifyoudonoteatabalanceddiet?Doyouknowthefoodweeathelpsusgrowindifferentways?FoodstogiveusenergyFoodstogrowbone
3、sandmuscle(egbody-buildingfood)Foodsthatgivefiberfordigestionandhealth(egprotectivefood)FastenergyfoodSlowenergyfoodRiceSugarNoodlespotatoesbreadButterCreamOilsnutsMeatEggsCheeseMilktofuAllvegetables(egbeans,mushrooms,…)Allfruit(egapples,peaches,…)Doyoue
4、atahealthydiet?Whichonewouldyouprefer?WesternfoodorChinesefood?Whatdoyouusuallyhaveforbreakfast/lunch/supper?Whichfoodisrichinfat/fibre/sugar/vitamin/protein?Fibre&vitamin&sugarricecorndumplingsFibre&vitamincarrotWhichfoodisrichinfat/fibre/sugar/vitamin/
5、protein?baconmeatWhichfoodisrichinfat/fibre/calcium(钙)/sugar/vitamin/protein?fishmilkeggsproteinWhichfoodisrichinfat/fibre/sugar/vitamin/protein?saladFrenchfrieschocolateIcecreamhamburgersfat&sugarmilk,cheese,yogurt;meat,poultry,fish,beansfats,oils,sweet
6、sFruit;vegetablebread,cereal,rice,pastafatprotein蛋白质Fibres,sugarProvideourbodywith:vitaminsFoodPyramidHowtoeatahealthydiet?Junkfood—hasalotofcalories(热量)butfewnutrients,vitaminsandminerals（矿物质）.Healthyfood—givesusthecaloriesweneedbutnotcontaintoomuchfata
7、ndsugar.Whatishealthydiet?Healthydiet:adietthatisbalancedandneithertoorichinfat,sugarandsaltnortoopoorandlackinginessentialnutrients.DiscussionhealthyeatingfoodchoicesbalanceddietWhatfoodcontainshealthy/junkfoodhealthyeatingDecidewhichfoodisjunkfoodorhea
8、lthyfoodandgivereasons.Ithink…isjunkfoodbecause…Ithink…ishealthyfoodbecause…(berichin;belowin)vsSpeaking1.Doyouthinkweshouldeateachkindoffood?2.Whatwillhappenifwedon’teatabalanceddiet?Whichfoodcontainsmore…?Examplesoffoods
