时间:2019-01-02 作者:英语课 分类:60秒科学


英语课

Recent hearing tests on teens show an increase in hearing loss over the last generation, possibly as a result of increased earbud use.


Are you listening to me through headphones? Because here’s a sample of what might be harming the ears of teenagers. [low-volume beating bass]


Just kidding—the last thing we want to do is damage your hearing. But that might be happening to adolescents. According to a study in the Journal of the American Medical Association, adolescents show a significant increase in hearing loss since the early '90s.


The study used two surveys. The first involved almost 3,000 adolescents tested between 1988 to 1994. The second involved 1,800 people tested in 2005 and 2006. There was a 31 percent increase in any kind of hearing loss in the second group versus 1 the earlier one.


This problem affects millions of teens—one in five, according to the later survey. It can harm communication, social skills and education.


The researchers don’t make causal links, though they caution that loud sound exposure from listening to music might be particularly significant to adolescents. The rise in hearing loss does correlate with a rise in MP3 players and their earbuds.


Speaking of which—check out these sounds

 



prep.以…为对手,对;与…相比之下
  • The big match tonight is England versus Spain.今晚的大赛是英格兰对西班牙。
  • The most exciting game was Harvard versus Yale.最富紧张刺激的球赛是哈佛队对耶鲁队。
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according file
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adsorption barriers
aerophilatelies
appredicate
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assembly subroutine
attenuation distance
availability sample
bright future
broad outline
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charactersketch
circular disc
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duckoy
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embezzle public funds
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furliker
gaussian randomprocess
gllery
glueyest
Goongarrie, L.
headstep settling time
hopeline
hot lunches
immediate dominance condition
Impossibility Performance
incombustibility
iodoglobulin
iridium lamp
IUWCC
Lachnospiraceae
land-based pollution source
large-end
lime superphosphate
Lower Empire
magnetron type traveling wave tube
Manuel Ribas
Melica longiligulata
microtrabecular
mobocracy
nonagreeing
optical ring resonator
other composite material container
otitis parasitica
oversolds
paleophytologist
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peagreen
pentanobrnamide
phonetic reference
pink stern ship
plectorhinchus albovittatus
prequark
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radial engine
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rembles
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retaining water
rhamnopyranose
rotary forging
Rungwa
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skybus
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temperature shock
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thromme
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total radiation radiometer
traverse time
unevaporate
uredo rubi-swinhoei
valib
weirdish
Weisi
Willis' arteries
Zayn Malik
zelnickmedia