（一） 　　　Mountainwhichintheendbenefitfromit?Tourismisbothasportclimbing,canincreaselungcapacity,enhancebloodcirculationandbloodflow.Moreover,asaltitudeincreases,airandhydrogenionconcentrationofnegativeoxygenionswillbemoreandmore,canreducebloodsugar,hemoglobinandanemiaincreasedthenumberofredbloodcells.Ofasthmaandotherrespiratorydiseasesalsocanplaytheroleofadjuvanttherapy.However,thelowerspringtemperaturesclimbingtoavoidtheearlymorningandevening,theparkshouldpayattentiontochangeclothestomeetthetemperature,climbingslowly,especiallythefrail,havehighbloodpressure,heartdisease,cannotfigurequickly,cannotclimbmorecompetition,notonlywilleasilysprainedfoot,willstrainthekneeandlegmuscles. 　　Valleyairinveryhighlevelsofnegativeoxygenionspercubiccentimeterofuptotwentythousandmorethaninotherpartsofthecontentoftheoutskirtsofthewildernessas700to1,000,400to600parkastreetGreenBelt100-200,room40to50largecities,denselypopulatedpublicplacesisminimal.Negativeoxygenionsintheairknownas"airvitamins."Thisioncanpromotetheactivitiesofhumancells,regulatingthenervoussystemexcitability,inhibition,andenhancebrainfunction,improvebloodcirculation,promotemetabolism,increasebodyimmunity.Contactandinhalationofalargenumberofnegativeoxygenionsonthehumanbodyisundoubtedlyuseful.Walkingorlyingdown,sittingunderthetreesandshadeontop,suddenlywillfeelthefragranceoftheairQinrulungs,allthetroublesvanished.Ithasbeenestimated,ahectareoflawnonehourtoabsorbonekilogramofcarbondioxide,reducingthetentotwentydbnoise,absorb70%ofsolarradiantheat,anacreofforestabsorbs67kgofcarbondioxideeveryday.Sointhegreenenvironment,canrapidlyimprovethebrainhypoxia,braingetenoughoxygen,enablingthebrain'sstrong,andenhancebrainfunction,improvetheanalysisandjudgments,thinkingability,toreducetheburdenontheheart,enhancedolfactory,visual,auditorysensitivity. 　　Mountaintourismonhumanhealthhaveamultifacetedrole,exposuretofreshair,peopleclearingthelungsandspleen,PanfengCROSSLINEcanShujinhuoxueaging,FleetofFootbriskwalkingcanpromotebloodcirculation,preventatherosclerosis,lookoverlookingcanbroadentheirhorizons,topostponeagingeyesight,youcanalsoenjoythebeautyofnature,peoplefeelhappy,comfortable,funtorelieveanxiety,yardsticks,accesstoknowledge,promotingmetabolism,robustbody. 　　（告诉我们登山带给人们的健康和美好心情） 　　（二） 　　　Lastweekourclasswenttoclimbhills.Itwasmyfirsttime.Ithoughtitwouldbeeasytogettothetopofthehill.ThenIcametoknowIwaswrong.Withthehelpofmyclassmates,Igottothetop.Iwasveryhappy. 　　(告诉我们,登山难以及成功的喜悦） 　　(注：上第一篇文章每一小分段可作为一篇小文章,都很优秀的,给你借鉴）