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1、AdvantagesofTea-DrinkingTeahasbeenoneofthedailynecessitiesinChinasincetimeimmemorial.Countlessnumbersofpeopleliketohavetheiraftermealtea.Insummerorwarmclimate,teaseemstodispeltheheatandbringoninstantcooltogetherwithafeelingofrelaxation.Forthisreason,tea-housesaboundintownsandmarketvil
2、lagesinSouthChinaandprovideelderlyretireeswiththelocalestomeetandchatoveracupoftea.Medically,thetealeafcontainsanumberofchemicals,ofwhich20-30%istannicacid,(丹宁酸)knownforitsanti-inflammatory（炎的）andgermi’cidal(杀菌的)properties.Italsocontainsanalkaloid生物碱(5%,mainlycaffeine),astimulantforth
3、enervecentreandtheprocessofme’tabolism.新陈代谢Teawiththearomaticsinitmayhelpresolvemeatandfatandthuspromotedigestion.Itis,therefore,ofspecialimportancetopeoplewholivemainlyonmeat,likemanyoftheethnicminoritiesinChina.Apopularproverbamongthemsays,"Rathergowithoutsaltforthreedaysthanwithout
4、teaforasingleday."Teaisalsorichinvariousvitaminsand,forsmokers,ithelpstodischargenicotineoutofthesystem.Afterwining,strongteamayprovetobeasoberingpick-me-up.Theabove,however,doesnotgotosaythatthestrongerthetea,themoreadvantagesitwillyield.Toomuchtannicacidwillaffectthese‘cretionoftheg
5、astricjuice（胃液）,irritatethemembraneofthestomachandcauseindigestionorconstipation.Strongteatakenjustbeforebedtimewillgiverisetooccasionalinsomnia.Constantdrinkingofover-strongteamayinduceheartandblood-pressuredisordersinsomepeople,reducethemilkofabreast-feedingmother,andputabrowncoloro
6、ntheteethofyoungpeople.Butitisnotdifficulttowardofftheseundesirableeffects:justdon'tmakeyourteatoostrong.TeadrinkingcustomsApotofChineseteaThereareseveralspecialcircumstancesinwhichteaispreparedandconsumed.·Asasignofrespect:InChinesesociety,theyoungergenerationalwaysshowsitsrespecttot
7、heoldergenerationbyofferingacupoftea.Invitingandpayingfortheirelderstogotorestaurantsforteaisatraditionalactivityonholidays.Inthepast,peopleoflowerrankservedteatohigherrankingpeople.Today,asChinesesocietybecomesmoreliberal,sometimesathomeparentsmaypouracupofteafortheirchildren,oraboss
8、mayev
