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(单词翻译:双击或拖选)
It's two in the morning, and like most people you're fast asleep. But then your eyes pop open and your three year old is standing1 there, tugging2 her ear and saying, "Mommy, my ear hurts."
If you're a parent with a young child, this scenario3 is probably nothing new. In fact, the typical toddler averages about four ear aches per year. But when's the last time you had an ear infection? Clearly, little kids are much more likely to get an ear infection than adults. What makes kids so susceptible4?
Most infections happen in the middle ear, a pocket about the size of a small grape located just behind the eardrum. When kids get a cold, the auditory tube--a shaft5 running from the middle ear to the throat--can become filled with fluid. For grownups this usually isn't a problem, since adult tubes are large enough to let the fluid drain away. But in children under three the auditory tube is a lot smaller and more likely to get clogged6 up. Bacteria love this sort of clogging7, and soon they move in and cause infection. The ear reacts by making pus, a thick liquid that fights bacteria. As the pus builds up it pushes on the eardrum, causing pain.
Fortunately, the cure is pretty straightforward8. A good dose of antibiotics9 and your child will be good as new in a few days.
So if what seems like a constant series of ear infections is wearing you and your child out, take heart. Around when most kids turn three, their auditory tubes become large enough to make infection less likely.
点击收听单词发音
1 standing | |
n.持续,地位;adj.永久的,不动的,直立的,不流动的 | |
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2 tugging | |
n.牵引感v.用力拉,使劲拉,猛扯( tug的现在分词 ) | |
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3 scenario | |
n.剧本,脚本;概要 | |
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4 susceptible | |
adj.过敏的,敏感的;易动感情的,易受感动的 | |
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5 shaft | |
n.(工具的)柄,杆状物 | |
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6 clogged | |
(使)阻碍( clog的过去式和过去分词 ); 淤滞 | |
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7 clogging | |
堵塞,闭合 | |
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8 straightforward | |
adj.正直的,坦率的;易懂的,简单的 | |
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9 antibiotics | |
n.(用作复数)抗生素;(用作单数)抗生物质的研究;抗生素,抗菌素( antibiotic的名词复数 ) | |
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