endure.
\（54）to complete this walk was a powerful predictor of health outcomes,\study leader Anne Newman of the University of Pittsburgh School of Medicine.\（55）that the people who could not complete the walk were（56）an extremely high risk of later disability and death.\
Newman and colleagues recruited nearly 2,700 white and African-American men and women aged 70 to 79 to（57）the walk.All the participants were screened and determined to be in relatively（58）health,and they had all said they had previously walked that far with no（59）.Only 86 percent of them finished,（60）. The scientists then monitored the health and mortality of all（61）for the next six years.\a big gap in health outcomes（62）people who could complete the longer walk and people who could not,with the latter being at an extremely high（63）of becoming disabled or dying,\said.\was
really surprising is that these people were not（64）of how weak they actually were.\
Finishing times were found to be
crucial,too.Those who completed the walk but were among the slowest 25 percent（65）three times greater risk of death than the speedier folks.
51.A.takeB.doC.jumpD.run 52.A.healthB.safetyC.peaceD.fun 53.A.oldB.effectiveC.alikeD.alive 54.A.taskB.standardC.abilityD.subject 55.A.foundB.doubtedC.suspectedD.studied 56.A.inB.atC.ofD.with
57.A.competeB.loseC.completeD.win
58.A.goodB.mentalC.physicalD.psychological 59.A.questionB.problemC.answerD.solution 60.A.henceB.moreoverC.howeverD.so
61.A.participantsB.activistsC.colleaguesD.athletes
62.A.forB.onC.amongD.between
63.A.numberB.gradeC.riskD.standard 64.A.sureB.freeC.stupidD.aware
65.A.increasedB.facedC.carriedD.avoided
2007年全国职称英语等级考试试题及答案-理工类（B级）
