单选题 {{B}}第二篇{{/B}}
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.
单选题 According to the essay, you may have a cold because ______.
【正确答案】 B
【答案解析】[解析] 第一段虽然提到了感冒常发生于冬天,但紧接下去说受凉并不会导致感冒,所以A不是正确答案。文章第四段第一句说得明白:感冒通常是与感冒的人身体直接接触而传染的,而不是由打喷嚏或咳嗽传染的,所以C项也不是正确答案。至于D也是错误的。只有答案B与第一段第四句的意义相吻合,因此是正确答案。
单选题 The best way to keep yourself from getting colds is ______.
【正确答案】 A
【答案解析】[解析] 第五段的第一句话“Hygiene is your best defense”意思是“卫生是你的最佳防御”,与A项相吻合,因此A项是正确答案。同一段中提到的用消毒肥皂洗手,虽然也是保持卫生的手段之一,但仅是具体措施之一,不是全部措施,所以B项不是正确答案。C项提到的服阿司匹林是治感冒的手段之一,而非预防手段。D项提到的多喝水在文中也指治疗手段,所以C和D都不是正确答案。
单选题 Children have more colds because ______.
【正确答案】 B
【答案解析】[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。
单选题 When you are having a old ______.
【正确答案】 C
【答案解析】[解析] 第三段提到有150多种感冒病毒,而人们绝不会被同一种病毒侵害两次,因为得了一次感冒后对相应的病毒就获得了免疫力,所以只有C项才符合第三段的内容。
单选题 When one is having a cold, he may often have all the following symptoms EXCEPT ______.
【正确答案】 D
【答案解析】[解析] 本题谈的是文中提及的感冒症状。文中并没有提到得了感冒就胃疼,所以D项是正确答案。