题目
While weve known for some time about the many long-term benefits of exercise, new research shows aerobic exercise also may have considerable effects on aging and brain health in the short term. A new study says exercise can help older adults improve their memory and overall cognitive health as they【C1】______. Researchers at the Center for BrainHealth studied a group of 37 adults ages 57 to 75【C2】______inactive lifestyles. They were【C3】______two groups, one control group and one physically active group. The fitness group spent one hour a day, three times a week, either bicycling or jogging【C4】______the course of 12 weeks. Each participant was【C5】______before, after and halfway through the study on their overall brain【C6】______and the fitness level of heart and blood vessel. At all three checkpoints, the group that was physically active was found to have higher blood flow in the brain and also improved memory. Researchers【C7】______this to increased blood flow in certain regions of the brain concerning memory. "Science has shown that aging【C8】______mental efficiency and memory decline is the number one cognitive【C9】______of older adults," lead author Sandra Bond Chapman said in a statement. "This research shows the【C10】______benefit of aerobic exercise on a persons memory and demonstrates that aerobic exercise can reduce both the biological and cognitive【C11】______of aging." There are hundreds of benefits of exercise at any age【C12】______. for older adults, the affects are especially astonishing. Another study in 2006 showed that exercise not only improved brain performance but【C13】______increased brain volume in older adults. Researchers say the best part about the【C14】______findings is that aerobic exercise is low-cost and accessible to anyone,【C15】______is packed with benefits. Exercise can help lower blood pressure, help【C16】______your hormone levels, and even shorten hot flashes. But to【C17】______maximum benefits from an exercise regime, Chapman says its important to also get plenty of mental stimulation. "To think we can【C18】______and improve the basic structure of the【C19】______brain through aerobic exercise and complex thinking should【C20】______us to challenge our thinking and get moving at any age," Chapman said.【C1】A．ageB．matureC．developD．ripen
While weve known for some time about the many long-term benefits of exercise, new research shows aerobic exercise also may have considerable effects on aging and brain health in the short term. A new study says exercise can help older adults improve their memory and overall cognitive health as they【C1】______. Researchers at the Center for BrainHealth studied a group of 37 adults ages 57 to 75【C2】______inactive lifestyles. They were【C3】______two groups, one control group and one physically active group. The fitness group spent one hour a day, three times a week, either bicycling or jogging【C4】______the course of 12 weeks. Each participant was【C5】______before, after and halfway through the study on their overall brain【C6】______and the fitness level of heart and blood vessel. At all three checkpoints, the group that was physically active was found to have higher blood flow in the brain and also improved memory. Researchers【C7】______this to increased blood flow in certain regions of the brain concerning memory. "Science has shown that aging【C8】______mental efficiency and memory decline is the number one cognitive【C9】______of older adults," lead author Sandra Bond Chapman said in a statement. "This research shows the【C10】______benefit of aerobic exercise on a persons memory and demonstrates that aerobic exercise can reduce both the biological and cognitive【C11】______of aging." There are hundreds of benefits of exercise at any age【C12】______. for older adults, the affects are especially astonishing. Another study in 2006 showed that exercise not only improved brain performance but【C13】______increased brain volume in older adults. Researchers say the best part about the【C14】______findings is that aerobic exercise is low-cost and accessible to anyone,【C15】______is packed with benefits. Exercise can help lower blood pressure, help【C16】______your hormone levels, and even shorten hot flashes. But to【C17】______maximum benefits from an exercise regime, Chapman says its important to also get plenty of mental stimulation. "To think we can【C18】______and improve the basic structure of the【C19】______brain through aerobic exercise and complex thinking should【C20】______us to challenge our thinking and get moving at any age," Chapman said.
【C1】A．age
B．mature
C．develop
D．ripen
【C1】A．age
B．mature
C．develop
D．ripen
题目解答
答案
A
上文提到新的研究表明有氧运动可能也会对老龄化(aging)产生巨大的影响。本句顺接上文，指出新的研究表明运动可以帮助老年人提高记忆力和整体认知能力。空格前的as“随着”引导时间状语从句，A项age表示“衰老”，与上文的aging对应，符合语义逻辑。
上文提到新的研究表明有氧运动可能也会对老龄化(aging)产生巨大的影响。本句顺接上文，指出新的研究表明运动可以帮助老年人提高记忆力和整体认知能力。空格前的as“随着”引导时间状语从句，A项age表示“衰老”，与上文的aging对应，符合语义逻辑。
解析
本题考查对文章语义逻辑的理解以及词汇的辨析。解题的关键在于结合上下文，找到与前文提到的“aging”相关且能使句子语义通顺的词汇。
- 文章开篇提到新研究表明有氧运动可能对老龄化和大脑健康有短期影响。
- 本句说运动能帮助老年人在某个过程中提高记忆力和整体认知健康。
- 空格前的“as”引导时间状语从句，需要一个能体现随着时间推移与老年人相关变化的动词。
- 选项A“age”意为“衰老”，与前文的“aging”相呼应，符合句子表达的随着老年人衰老，运动能帮助他们提高记忆力和认知健康的语义逻辑。
- 选项B“mature”通常指“成熟”，一般用于描述人或事物从不成熟到成熟的过程，与老年人的衰老语境不符。
- 选项C“develop”有“发展、发育”的意思，更侧重于事物的成长和进步，不太能准确表达老年人随着时间推移的衰老过程。
- 选项D“ripen”主要用于描述水果等的成熟，与老年人的语境不相关。