复习阅读理解说明文专练(2020-2022近三年真题)(含答案).pdf

近三年（2020——2022）高考真题——说明文阅读

1.2020ⅠC

（年新课标）

Racewalkingsharesmanyfitnessbenefitswithrunning,researchshows,whilemostlikely

contributingtofewerinjuries.Itdoes,however,haveitsownproblem.

Racewalkersareconditionedathletes.ThelongesttrackandfieldeventattheSummer

Olympicsisthe50-kilometerracewalk,whichisaboutfivemileslongerthanthemarathon.But

onefootremainincontact()withthegroundatalltimes.It’sthisstrangeformthatmakes

接触

exercisescienceatSalemStateUniversityinSalem,Mass.

racewalkersmovingatapaceofsixmilesperhourwouldburnabout800calories()per

卡路里

hour,whichisapproximatelytwiceasmanyastheywouldburnwalking,althoughfewerthan

running,whichwouldprobablyburnabout1,000ormorecaloriesperhour.

However,racewalkingdoesnotpoundthebodyasmuchasrunningdoes,Dr.Norbergsays.

step,whileracewalkers,whodonotleavetheground,createonlyabout1.4timestheirbody

weightwitheachstep.

sport.Infact,anyonewishingtotryracewalkingshouldprobablyfirstconsultacoachor

experiencedracertolearnpropertechnique,shesays.Ittakessomepractice.

28.Whyareracewalkersconditionedathletes?

A.Theymustrunlongdistances.B.Theyarequalifiedforthemarathon.

C.Theyhavetofollowspecialrules.D.Theyaregoodatswingingtheirlegs.

29.Whatadvantagedoesracewalkinghaveoverrunning?

A.It’smorepopularattheOlympics.B.It’slesschallengingphysically.

C.It’smoreeffectiveinbodybuilding.D.It’slesslikelytocausekneeinjuries.

30.WhatisDr.Norberg’ssuggestionforsomeonetryingracewalking?

A.Gettingexperts’opinions.B.Havingamedicalcheckup.

C.Hiringanexperiencedcoach.D.Doingregularexercises.

31.Whic