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While we’ve known for some time about the many long-term benefits of exercise, new research shows aerobic exercise also may have
While we’ve known for some time about the many long-term benefits of exercise, new research shows aerobic exercise also may have
admin
2023-03-24
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问题
While we’ve 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 Brain Health 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 person’s 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 it’s 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.
【C13】
选项
A、hardly
B、unexpectedly
C、probably
D、actually
答案
D
解析
本句指出另一项研究的成果,即“锻炼不仅能改善大脑功能,而且增加了老年人的脑容量”,这也印证了上一段提到的研究的成果。因此空格应填入用于强调事实的副词,D项actually“确实地”符合语义逻辑。A项hardly“几乎不”与本题语义相悖。上一个研究成果已经表明健身组成员的记忆力有所改善。这也就意味着脑容量有所增加,与本研究的发现一致,B项unexpectedly“意外地”不合逻辑。用C项probably“很可能”来陈述研究成果不具说服力。
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0
考研英语二
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