《2025年一本英语五合一必刷题高中人教版》

Hearing loss often comes on so gradually that many don’t notice; others ignore it. Only an estimated 15 to 25 percent of adults who would benefit from hearing aids use them, and use is lowest among people who have less access to health care.
Recent research revealed that even mild hearing loss in older adults was associated with accelerated cognitive(认知的) decline. People with hearing loss are more likely to develop dementia(痴呆), and the likelihood increases with the severity of the loss. In 2020 a Lancet Commission on dementia identified hearing loss as a risk factor for dementia.
In July, Frank Lin, a director of the Public Health at Johns Hopkins University, presented results from a clinical trial of 977 adults between 70 and 84 with untreated hearing loss. One group received best-practice hearing care, including hearing aids, and another group took part in a program about successful aging. Three years later, hearing aids did not make much difference to the healthiest participants. But those who were at the higher risk for dementia because of age and potential health conditions had a 48 percent reduction in cognitive change if they got hearing aids.
Anu Sharma, an expert at the University of Colorado Boulder, says that when hearing loss is untreated, the brain’s organization changes. In adults with mild hearing loss, studies show a decrease in gray matter, which means a decrease in intelligence. Adults with hearing loss also show more activity in working memory areas; they need to make extra efforts just to listen, Sharma says, which may reduce cognitive reserves. Hearing loss is also associated with more falls, higher health-care costs, and increased loneliness and social isolation.
These consequences of hearing loss contributed to the Food and Drug Administration’s decision to create a category of over-the-counter (OTC) hearing aids. A pair of traditional aids costs $ 4,700 on average. Most of the new OTC devices range in price from $ 500 to $ 1,900.
8. Why do many people fail to notice hearing loss according to the first paragraph?
A. It’s a slow process.
B. It doesn’t cause pain.
C. It’s a common problem.
D. It doesn’t affect daily life.
9. What is paragraph 4 mainly about?
A. The organization of the brain.
B. The factors that affect hearing.
C. The ways to prevent hearing loss.
D. The consequences of hearing loss.
10. What is an advantage of the OTC hearing aids over the traditional hearing aids?
A. They have a lower price.
B. They are of better quality.
C. They offer more functions.
D. They are more suitable for adults.
11. What is a suitable title for the text?
A. Hearing Aids Become More Common
B. More Older People Suffer from Hearing Loss
C. Many Factors Lead to Cognitive Decline and Dementia
D. Hearing Aids May Lower Risk of Cognitive Decline and Dementia

答案： 8.A 细节理解题。根据第一段中的“Hearing loss often comes on so gradually that many don’t notice”可知，听力损失通常是逐渐显现的，以至于许多人注意不到。由此可知，很多人注意不到听力损失是因为听力损失是一个缓慢的过程。
9.D 段落大意题。通读第四段可知，Anu Sharma说如果听力损失得不到治疗，大脑的组织结构就会发生变化，从而影响智力和认知能力；听力损失还会导致更频繁的跌倒、更高的医疗费用等。由此可知，第四段主要介绍了听力损失的后果。
10.A 细节理解题。根据最后一段中的“A pair of traditional aids costs $4,700 on average.”和“Most of the new OTC devices range in price from $500 to $1,900.”可知，一副传统的助听器平均要花费4700美元，但大多数新型非处方助听器的价格从500美元到1900美元不等。由此可知，相比于传统的助听器，非处方助听器的价格更低。
11.D 标题概括题。通读全文可知，文章通过介绍多项研究结果来说明听力对于健康的重要性，听力损失会加速认知衰退，增加患上痴呆的风险，而佩戴助听器改善听力的措施能降低认知衰退和患上痴呆的风险，故D项“助听器可降低认知衰退和患上痴呆的风险”最适合作文章标题。