Watching a child struggle to breathe during an asthma attack is frightening for any parent. So it is only natural that most moms and dads will try just about anything--including spending a lot of money--to keep an attack at bay. Trouble is, more than half of parents are trying strategies that simply don't work and wasting hundreds of dollars in the process, according to a study published last week in the Journal of Allergy and Clinical Immunology.

　　The report, based on interviews with the parents of 896 asthmatic children in 10 different cities, contained some good news. Eighty percent of parents had a handle on at least one of the triggers that worsened their children's asthma. After that, however, many parents seemed to go astray, taking precautions that weren't helpful "and made little sense," according to Dr. Michael Cabana, a pediatrician at the University of Michigan's C.S. Mott Children's Hospital, who led the study.

　　One of the most common mistakes was to buy a mattress cover to protect against dust mites for a child whose asthma was exacerbated instead by plant pollen. Many of those parents then neglected to do what would have helped a lot more: shut the windows to keep pollen out. Another was using a humidifier for a child who was allergic to dust mites; a humidifier tends to be a place where dust mites like to breed. With those allergies, a dehumidifier works better.

　　Worst of all was the number of smokers with asthmatic children who didn't even try to quit or at least limit themselves to smoking outdoors rather than just moving to another room or the garage. Second-hand smoke has been proved, over and over again, to be a major trigger of asthma attacks. Many smoking parents purchased expensive air filters that have what Cabana called "questionable utility."

　　Part of the problem, Dr. Cabana and his colleagues believe, is that parents are bombarded by television ads that encourage them to buy products such as air and carpet fresheners, ionizers and other remedies that are often expensive but medically unnecessary. And doctors may not always take the time, or have the time, to explain to parents what will and won't work in their child's particular case. For example, allergies are usually a problem for older children with asthma, while kids 5 and younger more frequently have trouble with viral respiratory infections. So make sure you understand what's really triggering your child's asthma. And remember, the best solutions are not always the most expensive ones.

1.What does the study by Dr. Michael Cabana indicate?
　　[A]Parents are eager to cure of their children’s disease.
　　[B]Many parents are wasting money for their children’s frightening disease.
　　[C] Many parents fail to find the effective way for their children’s disease.
　　[D]Parents feel worried about their children’s disease.

2.Which of the following is not the trigger of asthma attacks?
　　[A]Humidifier.
　　[B]Second-hand smoke.
　　[C]Plant pollen.
　　[D]Dust mites.

3.The expression “to keep an attack at bay” (Line 3, Paragraph 1) most probably means ________.
　　[A]to ease the attack
　　[B]to lessen the attack
　　[C]to continue the attack
　　[D]to prevent the attack

4.Why are the parents in such a dilemma?
　　[A]The doctors are not responsible enough.
　　[B]Parents are influenced much by ads.
　　[C]Parents are ignorant of the disease.
　　[D]The quality of medical products is not good.

5.Which of the following is true according to the text?
　　[A]Parents shouldn’t spend too much money on the children.
　　[B]The expensive products are not always good.
　　[C]To know the real trigger of the disease is very important.
　　[D]Parents often make mistakes.

　　答案：CADBC

　　篇章剖析

　　本文采用提出问题——说明问题——分析问题的模式，指出哮喘病患儿家长在防治哮喘方面存在的问题、错误及其误区。在第一段提出有关哮喘病的一项研究成果；第二段进一步补充第一段的论点，指出很多家长对孩子的病情无计可施；第三段和第四段指出家长的错误做法；第五段分析其原因并提出建议。

　　词汇注释

　　proof[pru:f]dj.不能透入的, 证明用的, 防...的, 有耐力的vt.检验, 校对, 使不被穿透

　　Asthma [5AsmE; (?@) 5AzmE]n.[医]哮喘

　　keep at bay 阻止；挡住

　　allergy [5AlEdVI] n.[医]敏感症, <口>反感

　　immunology [Imju:5nRlEdVI]n.[生]免疫学

　　trigger [5trI^E(r)] n能引起反应的刺激物

　　have a handle on 理解，明白

　　go astray 误入迷途

　　pediatrician [9pi:dIE`trIFEn, 9pe-]n.儿科医师

　　dust mite尘螨

　　humidifier[hju:mIdIfaIE(r)]n.增湿器, 湿润器, 湿度调节器

　　allergic[E5l\:dVIk]adj.[医]过敏的, 患过敏症的

　　bombard[bRm5bB:d]vt炮轰；轰击； 攻击；质问

　　ionizer n. 离子发生器

　　respiratory[rI5spIrEtErI; (?@) -tC:rI]adj.呼吸的

　　难句突破

　　１．Part of the problem, Dr. Cabana and his colleagues believe, is that parents are bombarded by television ads that encourage them to buy products such as air and carpet fresheners, ionizers and other remedies that are often expensive but medically unnecessary.

　　主体句式：part of the problem … is that …

　　结构分析：本句是一个宾语从句。句子主语是“part of the problem”，“Dr. Cabana and his colleagues believe”是插入语，“that”引导宾语从句。在从句中，又有“that”引导定语从句来修饰“ads”；在定语从句中又有“that”引导的定语从句来修饰“remedies”。

　　句子译文：卡巴娜博士和他的同事认为，部分问题在于家长经不住电视广告的狂轰乱炸。这些电视广告怂恿他们购买那些昂贵却没有什么医疗效果的产品，比如空气和地毯清洁剂、离子发生器和其它一些药品什么的。

　　题目分析

　　1． 答案为C,属推理判断题。原文对应信息是“Trouble is, more than half of parents are trying strategies that simply don't work and wasting hundreds of dollars in the process.” 在接下来的论述中, 作者又进一步论证了这一点:“Eighty percent of parents had a handle on at least one of the triggers that worsened their children's asthma. After that, however, many parents seemed to go astray, taking precautions that weren't helpful "and made little sense"”.

　　2． 答案为A,属事实细节题。文章第三段提到了两种过敏源:尘螨和花粉;第四段提到的过敏源是二手烟；加湿器不是过敏源,而是在某种情况下，会为过敏源提供滋生地，从而诱发哮喘。

　　3．答案为D，属猜词题。本文开头第一句和第二句具有因果关系。第一句提到“Watching a child struggle to breathe during an asthma attack is frightening for any parent.”那么家长为了避免孩子哮喘病发作去想尽一切办法，甚至花费大笔钱财的做法是再自然不过的了。根据短语所在的语境可猜出语义。

　　4． 答案为B，属推理判断题。原文对应信息是“Part of the problem is that parents are bombarded by television ads that encourage them to buy products such as air and carpet freshene