The proportion of adults who said they went on a 10-minute walk at least onc

游客2023-07-07 73

问题 The proportion of adults who said they went on a 10-minute walk at least once a week increased to 62 percent in 2010, from 56 percent in 2005, the Centers for Disease Control and Prevention(CDC)has reported.
Federal guidelines【C1】______that adults get at least 150 minutes of moderate-intensity aerobic(有氧的)exercise(like quick walking)or 75 minutes of【C2】______exercise(like running)each week. The【C3】______of people who met federal guidelines for aerobic exercise also grew, to 48 percent in 2010 from 42 percentin 2005, the agency said.
" We know that walking is one of the most popular【C4】______activities that people do," said Dianna Carroll, a CDC epidemiologist(流行病学家)who【C5】______to the study.
Walking increased across all races, ages and【C6】______. The South showed the biggest increase in people who said they walked during the study period,【C7】______to 57 percent from 49 percent in 2005. The Northeast showed the smallest increase, to 66 percent from 64 percent.
In the CDC’s National Health Interview Survey, more than 20,000 people were asked to【C8】______how much they had walked in the previous seven days. The study excluded people who said they could not walk.
Dr. Carroll said that Americans could still【C9】______. "We have this increase in walking, but less than half of adults are getting enough activity to show【C10】______health benefits," she said.
A)advise I)proportion
B)contributed J)recall
C)countries K)recommend
D)devoted L)regions
E)dramatically M)remember
F)improve N)substantial
G)largely O)vigorous
H)physical [br] 【C5】

选项

答案 B

解析该空格位于who引导的定语从句中，分析句子成分可知该定语从句缺少谓语，故空格处应填入能和介词to搭配的动词。由句意可知，该流行病学家在这项研究中起到了自己的作用，因此选择conmbuted，conmbute to意为“为……做贡献”。devote to意为“致力于，献身于”，不符合文意，故排除。

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