危险体育运动(Dangerous Sports Activities)

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aroundtheworldmoreandmorepeoplearetakingpartindangeroussportsactivities.ofcourse,therehavealwaysbeenpeoplewhohavelookedforadventurethosewhohaveclimbedunknownpartsoftheworldorsailedinsmallboatsacrossthegreatestoceans.now,however,therearepeoplewhoseekanimmediatethrill,ariskyactivity,whichmayonlylastafewminutesorevenseconds.

bungeejumpingisagoodexampleofsuchanactivity.youjumpfromahighplace200metersabovethegroundwithanelasticropetiedtoyourfeet.youfallatupto150kilometersanhouruntiltheropestopsyoufromhittingtheground.itisestimatedthattwomillionpeoplearoundtheworldhavenowtriedbungeejumping.

whydopeopletakepartinsuchactivitiesasthese?somepsychologistssuggestthatitisbecauselifeinmodernsocietieshasbeesafeandboring.inancienttimes,people'sliveswereconstantlyunderthreat.theyhadtogooutandhuntforfood.diseasescouldnoteasilybecured,andtherewasacontinuousbattleforsurvival.

nowadays,aordingtomanypeople,lifeofferslittleexcitement.theyliveandworkinparativelysafeenvironments;theybuyfoodinshops;therearedoctorsandhospitalstolookafterthemiftheybeeiii.itisnecessaryforsomeofthesepeopletoseekdangerinactivitiessuchasbungeejumping.