人教版高一（下）课文材料原文

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1、人教版新教材高一（下）Unit13HealthyeatingAWeAreWhatWeEatChoosingwhattoeatisnolongeraseasyasitoncewas．Oureatinghabitshavechanged,ashasourwayoflife，andthefuelweneedforourbodiesisalsodifferent．Traditionaldietsoftenhavetoomuchfatandtoomanycaloriesforthe21st-centuryperson．Ifwewanttokeepupwiththehighpaceofmode

2、rnlife，wehadbetterlearntomakethefightchoicesaboutwhatandhowweeat．Storesofferallkindsoffoodandsnacksandwehavetomakemanychoices．Whenwechoosewhattobuyandeat,wehadbetterthinkwhetherthefoodwillgiveusthenutrientsweneed．Somenutrientshelpbuildourbodyandmakeitstronger.Protein,forexample，isgoodforourmus

3、cles．Fish，meatandbeanscontainalotofprotein.Calcium,whichisfoundineggs，milkandotherdairyproducts，isgoodforourbonesandteeth．Weshouldalsoeatcarbohydrates，themainfuelforourbody，whichwecangetfrombread，riceandnoodles．Othernutrients，suchasfibreandminerals，helpkeepourbodyfunctioningwell．Vitamins,which

4、wecangetfromeatingvegetables，fruit，fishanddrinkingmilk，helpourbodyfightdisease．Butthechoiceswemakearenotjustaboutnutrition．Manypeopletodaymakechoicesabouttheireatinghabitsbasedonwhattheybelieve．Eatinghabitsbecomepartofwhoweare．Somepeoplebecomevegetariansbecausetheybelieveitishealthiernottoeatm

5、eatorbecausetheythinkweshouldnotkillanimalsforfood.Othersbecomevegansandwillnoteatanyanimalproductsatall，notevenyoghurtoreggs．Wealsomakechoicesbasedonhowtheproductsalegrownormade：environmentallyfriendlyfood，or“eco—food”，isproducedbycompanieswhohavetriedtousegreenandcleanwaystogrowit．Organicveg

6、etablesarethosethataregrownwithoutchemicalsthatcanbeharmfultohumanbeingsortheenvironment．Becausewehavesomuchtochoosefrom，manycompaniesandstoresofferadviceaboutwhatweshouldeat．Books，magazinesandtelevisionshowstellusaboutfoodandpillsweshouldbuytobecomesmarter,healthierandmorebeautiful．Itisprobab

7、lybetter，however，ifwespendourtimeandmoneyonbuyinggoodfoodandkeepingabalanceddiet．Ifweeathealthyfoodintherightamounts，wedonothavetobuyanysupplements．Thesamegoesfor“crashdiets”thatsomecompaniessaywillmakeusloseweightfast．Insteadofeatingex