Formuchoftheworldvegetarianism(素食主义)islargelyamatterofeconomics:Meatcostsalotmorethanbeansorricesomeatbecomesaspecial-occasiondish.Evenwheremeatismoreplentifulit’sstillusedincontrolanditoftenprovidesasidenotetoamealratherthantakingcenterstage.

IncountriesliketheUnitedStateswheremeatisnotasexpensivethoughpeoplechoosetobevegetariansforreasonsotherthancost.Parentalpreferences(父母亲的偏爱)religiousorotherbeliefsandhealthproblemsareamongthemostcommonreasonsforchoosingtobeavegetarian.Manypeoplechooseavegetariandietoutofconcernoveranimalrightsortheenvironment.Andlotsofpeoplehavemorethanonereasonforchoosingvegetarianism.

Differentpeoplefollowdifferentformsofvegetarianism.Atruevegetarianeatsnomeatatallincludingchickenandfish.Alactoovo(乳制品) vegetarianeatsdairyproducts andeggsbutkeepsoutmeatfishandchicken.Itfollowsthenthatalacto(乳，乳汁)vegetarianeatsdairyproductsbutnoteggsandanovo（蛋，鸡蛋）vegetarianeatseggsbutnotdairyproducts.

Astricterformofvegetarianismisveganism.Notonlyareeggsanddairyproductsexcluded(排除)fromavegandietsoareanimalproductslikehoney.Somemacrobiotic(养生的)dietsfallintothevegancategory.Macrobioticdietslimitnotonlyanimalproductsbutalsorefined（经过提炼的）andprocessedfoodsfoodswithpreservativesandfoodsthatcontaincaffeineorotherstimulants(刺激物).

Followingamacrobioticorvegandietcouldleadtonutritionaldeficiencies(营养不足)insomepeople.Teensneedtobesuretheirdietsincludeenoughnutrientstofuelgrowthparticularlyproteinandcalcium(钙).Ifyou’reinterestedinfollowingaveganormacrobioticdietit’sagoodideatotalktoaregistereddietitian（营养学家）.Heorshecanhelpyoudesignmealplansthatincludeenoughnutrients.

【小题1】Theunderlinedsentenceinthefirstparagraphprobablymeans______.

A．thereisusuallyanotebesidethemeatinamealB．meatoftenattractspeople’sattentioninamealC．meatisservedonlyasmallamountinamealD．meatshouldplayanimportantpartinameal【小题2】WhichofthefollowingisNOT