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1、人教课标版高一必修3Unit2Unit2HealthyeatingWhatarethethreeessentialelementsfor ushumanbeingstosurviveontheearth?waterairfoodHerearesomeproverbsaboutfood: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。Lookatthepicturesandlear
2、nsomenewwordsaboutfood.cucumbereggplantpeppermushroompeachlemonpeabeannutmuttonmuttonkebabsroastporkfriedpotatoesDoyouknowthefoodyoueathelpsyougrowindifferentway?FoodstogiveyouenergyFoodstogrowbonesandmuscle(egbody-buildingfood)Foodsthatgivefiberfordigestionandhealth
3、(egprotectivefood)FastenergyfoodSlowenergyfoodRiceSugarNoodlespotatoesbreadButterCreamOilsnutsMeatEggsCheeseMilktofuAllvegetables(egbeans,mushrooms,…)Allfruit(egapples,peaches,…)Doyoueatahealthydiet?Whichonewouldyouprefer?WesternfoodorChinesefood?Whatdoyouusuallyhave
4、forbreakfast/lunch/supper?Whichfoodisrichinfat/fibre/sugar/vitamin/protein?Fibre&vitamin&sugarricecorndumplingsFibre&vitamincarrotWhichfoodisrichinfat/fibre/sugar/vitamin/protein?baconmeatWhichfoodisrichinfat/fibre/calcium(钙)/sugar/vitamin/protein?fishmilkeggsprotein
5、Whichfoodisrichinfat/fibre/sugar/vitamin/protein?saladFrenchfrieschocolateIcecreamhamburgersfat&sugarmilk,cheese,yogurt;meat,poultry,fish,beansfats,oils,sweetsFruit;vegetablebread,cereal,rice,pastafatprotein蛋白质Fibres,sugarProvideourbodywith:vitaminsFoodPyramidWhatwil
6、lhappenifyoudonoteatabalanceddiet?Howtokeephealthy?Junkfood—hasalotofcaloriesbutfewnutrients,vitaminsandminerals.Healthyfood—giveusthecaloriesweneedbutnotcontaintoomuchfatandsugar.Whatishealthydiet?Healthydiet:adietthatisbalancedandneithertoorichinfat,sugarandsaltnor
7、toopoorandlackinginessentialnutrients.DiscussionhealthyeatingfoodchoicesbalanceddietWhatfoodcontainshealthy/junkfoodhealthyeatingDecidewhichfoodisjunkfoodorhealthyfoodandgivereasons.Ithink…isjunkfoodbecause…Ithink…ishealthyfoodbecause…(berichin;belowin)vsSpeaking1.Do
8、youthinkweshouldeateachkindoffood?2.Whatwillhappenifwedon’teatabalanceddiet?Whichfoodcontainsmore…?ExamplesoffoodsAnswersugarchocol
