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ID:51969615
大小:2.14 MB
页数:8页
时间:2020-03-26
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1、Whichonesuityou?DifferentSportsfordiffrentpurposeDifferentpeopleneeddifferentsportsForyoungpeoplekeepfitloseweightrelaxourselvescyclingBicycleswerefirstdevelopedinthemid-18thcenturyandhavelongsincebeenusedasaformoftransport.Originally,thefrontwheelwasmuchlargerthan
2、therearwheel,andtheriderwaselevatedagreatdeal,makingthemdifficulttocontrolandverydangerous.In1885,J.K.StarleyofEnglanddevisedthemoremodernbikewithachainandgearingtoallowthewheelstobeofequalsize.Althoughbicycleraceshadbeenheldontheold"pennyfarthings",thenewbikesstim
3、ulatedthegrowthofbicycleracingasasport.CYCLINGCyclingattheOlympicsfeaturesthreeexcitingdisciplines:road,trackandmountainbikingcyclingbicycleridingisespeciallygoodforhealth.Itisgoodexercise.Ifyougotoworkbyridingabicycleinsteadofdrivingortakingabus,youcanhaveabetterc
4、hanceofgettingenoughexerciseyouneedeveryday.Bicyclingisalsogoodforourenvironment.Itislessnoisyanddoesnotpollutetheair.IamgladtohaveriddenabicycletoschoolwhenIstudiedinthehighschool.cyclingYoucaneithertravelorread,andeitheryourbodyoryoursoulmustbeonthewaycyclingThan
5、kyou!
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