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1、AdvantagesofTea-DrinkingTeahasbeenoneofthedailynecessitiesinChinasincetimeimmemorial.Countlessnumbersofpeopleliketohavetheiraftermealtea.Insummerorwarmclimate,teaseemstodispeltheheatandbringoninstantcooltogetherwithafeelingofrelaxation.Forthisreason,tea-housesabou
2、ndintownsandmarketvillagesinSouthChinaandprovideelderlyretireeswiththelocalestomeetandchatoveracupoftea.Medically,thetealeafcontainsanumberofchemicals,ofwhich20-30%istannicacid,(丹宁酸)knownforitsanti-inflammatory（炎的）andgermi’cidal(杀菌的)properties.Italsocontainsanalka
3、loid生物碱(5%,mainlycaffeine),astimulantforthenervecentreandtheprocessofme’tabolism.新陈代谢Teawiththearomaticsinitmayhelpresolvemeatandfatandthuspromotedigestion.Itis,therefore,ofspecialimportancetopeoplewholivemainlyonmeat,likemanyoftheethnicminoritiesinChina.Apopularp
4、roverbamongthemsays,"Rathergowithoutsaltforthreedaysthanwithoutteaforasingleday."Teaisalsorichinvariousvitaminsand,forsmokers,ithelpstodischargenicotineoutofthesystem.Afterwining,strongteamayprovetobeasoberingpick-me-up.Theabove,however,doesnotgotosaythatthestrong
5、erthetea,themoreadvantagesitwillyield.Toomuchtannicacidwillaffectthese‘cretionofthegastricjuice（胃液）,irritatethemembraneofthestomachandcauseindigestionorconstipation.Strongteatakenjustbeforebedtimewillgiverisetooccasionalinsomnia.Constantdrinkingofover-strongteamay
6、induceheartandblood-pressuredisordersinsomepeople,reducethemilkofabreast-feedingmother,andputabrowncolorontheteethofyoungpeople.Butitisnotdifficulttowardofftheseundesirableeffects:justdon'tmakeyourteatoostrong.TeadrinkingcustomsApotofChineseteaThereareseveralspeci
7、alcircumstancesinwhichteaispreparedandconsumed.·Asasignofrespect:InChinesesociety,theyoungergenerationalwaysshowsitsrespecttotheoldergenerationbyofferingacupoftea.Invitingandpayingfortheirelderstogotorestaurantsforteaisatraditionalactivityonholidays.Inthepast,peop
8、leoflowerrankservedteatohigherrankingpeople.Today,asChinesesocietybecomesmoreliberal,sometimesathomeparentsmaypouracupofteafortheirchildren,orabossmayev
