关于Tennis运动的介绍,供参考!

　　AllAboutTennis

　　Tennisisoneofthemostpopularindividualsportsintheworld.Intennistheplayerusesaracquettohitaballoveranetintotheopponentscourt.Theballmustbekeptinplayandcanonlybounceonetimeonthecourtsurfacebeforetheopponentmuststriketheballbackoverthenet.Thestandardballismadeupoffeltoverhollowrubber.Tennisisoftenplayedwithoneplayerperside(singles)orwithtwoplayersperside(doubles).

　　AnearlyversionofTennisstartedoutinthe16thcenturyinFrancewhereplayerswouldyell"tenez"whenstartingagamegivingthegamethenameTennis.LaterthegamewouldberefinedinEnglandinthe19thcenturyaslawntennistomoreresemblethesportweplaytoday.

　　TennisCompetition

　　Tennisisplayedbypeopleovertheworldasagreatformofexorcizeandrecreation.Therearealsomanylevelsofprofessionalplayintournamentsaroundtheworld.TherearefourtoptournamentscalledtheGrandSlamTournaments.TheseareWimbledon,theUSOpen,TheAustralianOpen,andtheFrenchOpen.Millionsofpeoplewatchthesetournamentsmakingtennisagreatspectatorsportaswell.Recently,tenniswasaddedtotheOlympicsasanofficialsport.

　　Tennisisasportthathastranscendedagegroupsandisenjoyedbyyoungkidsaswellasseniorcitizens.

　　TheTennisCourt

　　Thebasicareawheretennisisplayediscallthecourt.Thisisarectangularflatsurfaceofvaryingtypesincludingconcrete,grass,andclay.Thestandardtenniscourtis78feetlongand27feetwideforsinglesmatches.Fordoublesmatchesthewidthofthecourtisincreasedto36feet.A3feet6inchhighnetisstretchedacrossthecourt,dividingthecourtinhalf.Tenniscourtscanbefoundinpublicparks,schools,andcountryclubsthroughouttheworld.Theycanbeoutsideorinsideallowingforfreshairwhentheweatherisgoodandyearroundplaywhentheweatherisbad.

　　Therearethreemaintypesoftenniscourtsurfaces.Eachsurfaceallowsforadifferentstyleofplaytoexcelasthebounceandspeedoftheballcanvarydramatically.Thesesurfacesare:

　　Hardcourt:Thistermincludesmanydifferentsurfacesincludingconcrete,asphalt,wood,andAstroturf,justtonameafew.Hardcourtsaregenerallyfastcourtsthathaveagoodconsistentbounceoftheball.Hardcourtsarethemostpopulartypeofcourtsandmostlikelythecourtmostamateurtennisplayersuse.

　　Clay:Theclaysurfaceisusuallyconsideredaslowsurfacebecausetennisballslosespeedwhentheyhitthecourt.Thissurfacealsocausestheballtobouncehigherthanonothersurfaces.Thiscanmakeforlongtennisrallies.

　　Grass:Grasscourtsarethemosttraditionalformofcourtastoday'stenniswasoriginallyplayedongrass.Grassisconsideredfastlikethehardcourts,butthegrasscanbeunevenandcausetheballtobouncefunnymakingitdifficulttoreturnhardshots.