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1、Unit2HealthyeatingWhatarethethreeessentialelementsfor ushumanbeingstosurviveontheearth?waterairfoodWarmingupHerearesomeproverbsaboutfood:Breadisthestaffoflife.民意食为天。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。Lookatthepicturesandlearnsomenewwordsaboutfood.cucumbere
2、ggplantpeppermushroompeachlemonpeabeannutmuttonmuttonkebabsroastporkfriedpotatoesnutEverybodyhastoeat,butdoyoueatahealthydiet?Doyouknowthatthefoodyoueathelpsyougrowindifferentways?FoodthatprovidesenergyFoodstogrowbonesandmuscle(eg,body-buildingfood)Foodthathelpsthebodyfightdiseases(eg,protect
3、ivefood)FastenergyfoodSlowenergyfoodRiceSugarNoodlespotatoesbreadButterCreamOilsnutsMeatEggsCheeseMilktofuAllvegetables(eg,beans,mushrooms,…)Allfruit(egapples,peaches,…)Whatdoyouusuallyhaveforbreakfast/lunch/supper?Whichfoodisrichinfat/fibre/sugar/vitamin/protein?Fibre&vitamin&sugarricecorndu
4、mplingsFibre&vitamincarrotWhichfoodisrichinfat/fibre/sugar/vitamin/protein?baconmeatWhichfoodisrichinfat/fibre/calcium(钙)/sugar/vitamin/protein?fishmilkeggsproteinWhichfoodisrichinfat/fibre/sugar/vitamin/protein?saladFrenchfrieschocolateicecreamhamburgersfat&sugarmilk,cheese,yogurt;meat,poult
5、ry,fish,beansfats,oils,sweetsFruit;vegetablebread,cereal,rice,pastafatprotein蛋白质Fibres,sugarvitaminsFoodPyramidProvideourbodywith:Whatwillhappenifyoudonoteatabalanceddiet?Howtokeephealthy?Junkfood—hasalotofcaloriesbutfewnutrients,vitaminsandminerals.Healthyfood—giveusthecaloriesweneedbutnotco
6、ntaintoomuchfatandsugar.Whatishealthydiet?Healthydiet:adietthatisbalancedandneithertoorichinfat,sugarandsaltnortoopoorandlackinginessentialnutrients.DiscussionhealthyeatingfoodchoicesbalanceddietWhatfoodcontainshealthy/junkfoodhealthyeatingDecidewhichfoodisjunkfoodorhealthyfoodandgivereasons.
7、Ithink…isjunkfoodbecause…Ithink…ishealthyfoodbecause…(berichin;belowin)vsSpeaking1.Doyouthinkweshouldeateachkindoffood?2.Whatwillhappenifwedon’teatabalanceddiet?Whichfoodcontainsmore…?ExamplesoffoodsAnswersugarchocolateorgrapecakesorbananasfa
