2025版高中英语Unit2TheOlympicGames高考练含解析新人教版必修2.docxVIP

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Unit2TheOlympicGames

五年高考练

阅读理解

A

(2024课标全国Ⅰ,C,)

Racewalkingsharesmanyfitnessbenefitswithrunning,researchshows,whilemostlikelycontributingtofewerinjuries.Itdoes,however,haveitsownproblem.

Racewalkersareconditionedathletes.ThelongesttrackandfieldeventattheSummerOlympicsisthe50-kilometerracewalk,whichisaboutfivemileslongerthanthemarathon.Butthesportsrulesrequirethataracewalkerskneesstaystraightthroughmostofthelegswingandonefootremainincontact(接触)withthegroundatalltimes.Itsthisstrangeformthatmakesracewalkingsuchanattractiveactivity,however,saysJaclynNorberg,anassistantprofessorofexercisescienceatSalemStateUniversityinSalem,Mass.

Likerunning,racewalkingisphysicallydemanding,shesays.Accordingtomostcalculations,racewalkersmovingatapaceofsixmilesperhourwouldburnabout800calories(卡路里)perhour,whichisapproximatelytwiceasmanyastheywouldburnwalking,althoughfewerthanrunning,whichwouldprobablyburnabout1,000ormorecaloriesperhour.

However,racewalkingdoesnotpoundthebodyasmuchasrunningdoes,Dr.Norbergsays.Accordingtoherresearch,runnershitthegroundwithasmuchasfourtimestheirbodyweightperstep,whileracewalkers,whodonotleavetheground,createonlyabout1.4timestheirbodyweightwitheachstep.

Asaresult,shesays,someoftheinjuriesassociatedwithrunning,suchasrunnersknee,areuncommonamongracewalkers.Butthesportsstrangeformdoesplaceconsiderablestressontheanklesandhips,sopeoplewithahistoryofsuchinjuriesmightwanttobecautiousinadoptingthesport.Infact,anyonewishingtotryracewalkingshouldprobablyfirstconsultacoachorexperiencedracertolearnpropertechnique,shesays.Ittakessomepractice.

词汇积累

1.sharebenefitswith与……共享好处

2.fitnessn.健康

3.contributeto带来;有助于

4.conditionedadj.受制约的,有条件的

5.trackandfieldevent田径项目

6.incontactwith接触;与……有联系

7.de