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1、Unit2Fitforlife文化背景EveryoneNeedsaHealthyDietThereisnowayforahealthydietwhichworksforeveryone,butscientistsknowalotaboutwhatcausesillnesseslikeheartdiseaseanddiabetes(糖尿病).LearningaboutplansliketheHealthyDietPyramid(金字塔)canhelptoavoidtheseillnesses.TheHealthyDietPyramidisjustaguidetowhatisgood
2、toeatandwhatisnot.Itsuggeststhecorrectcombinationoffoodsyoucaneateachdaytogetthenumberofcaloriesandnutrientsyouneed.Foodscanbesplitintofourmajorgroupsandideallyweshouldeatsomefromeachgrouponadailybasis.TheonesweshouldeatleastareatthetopoftheHealthyDietPyramidandtheseareoils,fats,sugarandsalt.
3、Nextarefoodswhichcomemostlyfromanimals:meat,poultry(禽肉),fish,eggs,yoghurt,cheese.Thesefoodsarerichinprotein,calcium,ironandzinc(锌).Thethirdlevelofthepyramidcontainsvegetablesandfruits.Manypeopleneedtoeatmoreofthesethantheydonow,becausetheysupplyessentialvitamins(维他命),minerals(矿物质)andfibre(纤维)
4、.Attheverybottomofthepyramidandinthelargestgroupoffoodsarethosewhichcomefromgrains:rice,noodles,cereals(谷类食物)andpasta(意大利面食).Thesefoodsshouldbethelargestpartofthefoodsyoueateachdaybecausetheyprovideanimportantsourceofenergy,aswellasvitamins,mineralsandfibre. Youmaythinkthatfoodswhichcomefro
5、mgrainsarefattening,butinfactitisthewayyoucookthemthatisfattening.Youshouldhavebetweenfiveandsevenservingsofgrainfoodsaday.Fruitandvegetablesshouldbeeatenatleasttwiceaday;meatandotherproteinstwotothreetimesaday. Someextratips:trimthefatoffmeatandbroil,roast,steworgrillitratherthanfry;trytoe
6、atalowamountofeggyoke(蛋黄)whichishighincholesterol(胆固醇)—useeggwhitetoincreasequantity.Nutsandseedscontainalotoffat,sotrynottoovereatthese. Allofthemarefoodforthought!Help:splitv.toseparateintodifferentpartsorgroupsideallyadv.usedtodescribethewayyouwouldlikethingstobe,eventhoughthismaynotbepo
7、ssibletrimv.toremovesth.orreducesth.bycuttingfoodforthought;sth.thatmakesyouthinkcarefully.HealthyDietPyramid
