D
Researcherssaycurrentexerciseguidelinesareunrealisticandargue thatdoctorsshouldsometimesadvisesmallincreasesinactivityinstead.They warnthe150-minuteweeklytargetisbeyondthereachofsomepeople- particularlyolderinpiduals.Andstrivingtoreachthesegoalscouldmeanthe benefitsoflighterexerciseareoverlooked.Butpublichealthofficialssay currentrecommendationshaveprovenbenefitsinloweringtheriskofheart disease.
Thereisincreasingevidencethatinactivityislinkedtoheart disease,Type2diabetes（糖尿病）andsometypesofcancer.UKguidelinesforadults recommendatleasttwo-and-a-halfhoursofmoderateactivityaweek,inshort periodsof10minutesormore.
ButintwoseparatearticlesintheBMJ, expertsarguethemessageneedstochange,withgreateremphasisonmaking inactivepeoplemovemore.ProfPhilipedeSoutoBarretoattheUniversity HospitalofToulouse,advisespeoplewhoaresedentary（久坐的）tomakesmall incrementalincreasesintheiractivitylevels-ratherthanpushingtoachieve currentgoals.HepointstoPviousstudieswhichshowevenshortperiodsof walkingorjust20minutesofvigorousactivityafewtimesamonthcanreduce theriskofdeath,comparedtopeoplewhodonoexercise.
Inthesecond article,ProfPhillipSparlingoftheGeorgiaInstituteofTechnology,says doctorsshouldtailortheiradvice---particularlyforolderpatients.He suggestsusingGPvisitsforpeopleover60todiscuss"realisticoptions"to increaseactivity---suchasgettingpeopletostandupandmoveduringTV commercialbreaks.
ProfKevinFentonatPublicHealthEngland,says: "Everyoneneedstobeactiveeveryday–--shortperiodsof10ormoreminutes ofphysicalactivityhaveprovenhealthbenefits,butgetting150minutesor moreofmoderateactivityeveryweekistheamountweneedtopositivelyimpact onawiderangeofhealthconditions."Thisincludesreducingtheriskofheart diseaseandtype2diabetes."
32.Whatisthecurrentexercisegoalmentioned inthepassage?
A.10-minuteexerciseB.20-minuteexercise
C. 60-minuteexerciseD.150-minuteexercise
33.Whatcanwelearnfromthe secondparagraph?
A.A10-minuteexercisehaslittleeffectonthe health.
B.Heartdiseaseshappeneasilytotheoldinactivity.
C. Two-and-a-halfhoursofexerciseisnotnecessary.
D.Inactivityeasily bringsaboutmanyseriousdiseases.
34.WhatisthesuggestionofProf. PhilipedeSoutoBarretoaccordingtothethirdparagraph?
A.Peopleshould spendlesstimeonexercise.
B.Peopleshouldlowertheiractivitylevels.
C.Peopleshouldincreaseexerciseproperly.
D.Peopleshouldachieve theircurrentgoals.
35.WhichofthefollowingisTRUEaboutcurrent exerciseguidelines?
A.Theyareimpractical.B.Theyarereasonable.
C.Theyhavenoeffectonus.D.Theyarepopularwithpeople.