Common-cold Sense You can’t beat it, but you don’t have to join it. Maybe it got the name "common cold" because it’s more co

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问题                         Common-cold Sense
    You can’t beat it, but you don’t have to join it. Maybe it got the name "common cold" because it’s more common in winter. The fact is, though, being cold doesn’t have anything to do with getting one. Colds are caused by the spread of rhinoviruses,and, at least so far, medical science is better at telling you how to avoid getting one than how to get rid of one.
    Children are the most common way cold viruses are spread to adults, because they have more colds than adults--an average of about eight per year. Why do kids seem so much more easily to get colds than their parents? Simple. They haven’t had the opportunity to become immune to many cold viruses.
    There are more than 150 different cold viruses, and you never have the same one twice. Being infected by one makes you immune to it--but only it.
    Colds are usually spread by direct contact, not sneezing or coughing. From another person’s hand to your hand and then to your nose or eyes in the most common route. The highest concentration of cold viruses anywhere is found under the thumbnails of a boy, although the viruses can survive for hours on skin or other smooth surfaces.
    Hygiene is your best defense. Wash your hands frequently, preferably with a disinfectant soap, especially when children in your household have colds.
    But even careful hygiene won’t ward off every cold. So, what works when a coughing, sneezing, runny nose strikes?
    The old prescription of two aspirins, lots of water, and bed rests a good place to start. But you’ll also find some of the folk remedies worth trying. Hot mixtures of sugar ( or honey), lemon, and water have real benefits.
Children have more colds because ______.

选项 A、they are usually infected about eight times each year
B、they are not immune to many cold viruses yet
C、they never wash their hands so that their thumbnails are dirty
D、they don’t like eating lemon

答案B

解析 第二段中提到儿童平均一年得八次感冒,这是一个统计数据,而不是儿童得冒的原因;文中并没有说“儿童从不洗手”;文中也没有说“儿童不喜欢吃柠檬”;所以A、C、D都不对。B项与第二段最后一句意思一样,是正确答案。
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