回答64~67题：CSportscanhelpyoukeepfitandgetintouchwithnature．However,whetheryouareonthemountains,inthewaves,oronthegrassland,youshouldbeawarethatyoursportofchoicemighthavegreatinfluenceontheenvironment.
Somesportsareresource-hungry.Golf,asyoumayknow,eatsupnotonlylargeareasofcountr yside,butalsotonsofwater.Besides,allsortsofchemicalsandhugeamountsofenergyareusedtokeepitscourses（球场）ingoodcondition.Thiscausesmajorenvironmentaleffects.Forexample,inthedryregionsofPortugalandSpain,golfisoftenheldresponsibleforseriouswatershortageinsomelocalareas.
Therearemanyenvironment-friendlysport.Powerwalkingisoneofthemthatyoucouldtakeuptoday.Youdon’tneedanyspecialequipmentexceptagoodpairofshoes；andyoudon’thavetoworryaboutr esourcesandyourpurse.Simpleandfree,powerwalkingcanalsokeepyoufit.Ifyouwalkregularly,itwillbegoodforyourheartandbones.Expertssaythat20minutesofpowerwalkingdailycanmakeyoufeellessanxious,sleepwellandhavebetterweightcontr ol.
Whateversportyoutakeup,youcanmakeitgreenerbyusingenvironment-friendlyequipmentandbuyingproductsmadefromrecycledmaterials.Butthefinalgoalshouldbe“greengyms”.Theyarebetterreplacementsfortr aditionalhealthclubsandmodernsportscenters.Membersofgreengymsplaysportsoutd oors,inthecountr ysideorotheropenspaces.Thereisnospecialrequirementforyoutostartyourmembership.Andbestofall,it’sfree
第9题：Whichofthefollowingistheauthormostprobablyinfavorof?
A．Cyclingaroundalake
B．Motorracinginthedesert
C．Playingbasketballinagym
D．Swimminginasportscenter
正确答案：A
