Until recently, the medical community believed that most hearing loss was ca

游客2023-08-16 41

问题 Until recently, the medical community believed that most hearing loss was caused by hear cells in the ear degrading as we age. But evidence is emerging that sound levels at sporting events, concerts, nightclubs and on personal devices can cause lasting damage to the connections between hear cells in the ear and the nerves that【C1】______sounds to the brain. Over 1.1 billion teenagers and young adults worldwide could be at risk of hearing loss as a result of【C2】______to unsafe levels of recreational noise, according to a recent World Health Organization report. To make matters worse, this kind of hearing loss doesn’t show up on【C3】______tests. Researchers are calling it a hidden epidemic. "We think this problem is【C4】______prevalent, but it’s difficult to measure because the tools we have available today are not sensitive enough," says Konstantina Stankovic, an auditory neuroscientist and surgeon at Massachusetts Eye and Ear, and Harvard Medical School, in Boston.
Stankovic is now working with colleagues at the Swiss Federal Institute of Technology in Lausanne to develop imaging【C5】______that would allow us to see this kind of neural damage in living brains. This could help with early diagnosis. Others are developing drugs that could help【C6】______the connections between the ear and the brain.
To properly【C7】______our ears, loud noises should be banned in many public places just as smoking is now, says Stankovic. Some countries have laws in place to protect【C8】______in bars and clubs by monitoring noise levels. Last year, Minneapolis City Council made it【C9】______for bars and clubs to offer free ear buds to patrons. Stankovic thinks more will need to be done to change【C10】______accepted norms around recreational noise. " I think it will require a public health effort similar to the efforts for limiting smoking, because of the peer pressure associated with loud music and noisy environments," she says.
A)compulsory I)socially
B)condense J)standard
C)exposure K)techniques
D)incredibly L)transmit
E)independently M)treat
F)protection N)uneasy
G)restore O)workers
H)safeguard [br] 【C2】

选项

答案 C

解析该空格位于介词短语as a result of之后，据此判断应填入名词，作介词短语的宾语。前一句中提到，环境噪音可能会导致耳朵中的听觉细胞与负责传导声音的神经之间的联系出现问题，从而引起听觉受损，而本句中再一次说明，娱乐环境中的噪音处在非安全水平，——在其中会导致青少年听力受损，故答案为C)exposure“暴露”。备选项中F)protection“保护，防卫”，K)techniques“技术，手法”和O)workers“工人，工作人员”均与上下文语义不符，故排除。

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