Bad teeth can be painful — and wor. They can even be deadly. Infections (感染）of

题文

Bad teeth can be painful — and wor. They can even be deadly. Infections (感染）of the gums (牙龈）and the teeth can cau bacteria (细菌）to go into the blood system. Tho bacteria can increa the chance of a heart attack and worn the effects of other dias. And adults are not the only ones at risk. For example, in 2007, doctors in the Washington area said a boy died when a tooth infection spread to his brain. They said it might have been prevented had he received the dental care (牙齿 保健）he needed. He was twelve years old.Experts at the National Institutes of Health say good dental care starts at birth. Breast milk, they say, is the best food for the healthy development of teeth. Breast milk can help slow the growth of bacteria and acid production in the mouth.But dentists say a baby's gums and early teeth should be cleaned after each feeding. U a cloth with a little warm water. Do the same if a baby is fed with a bottle. Experts say if you decide to put your baby to sleep with a bottle, only give the child water.When baby teeth begin to appear, you can clean them with a wet toothbrush. Dentists say it is important to find soft toothbrushes made especially for babies and to u them very gently.The u of fluoride (氟化物）to protect teeth is common in many parts of the world. For example, it is often added to drinking water supplies. The fluoride mixes with enamel (法琅质)， the hard surface on teeth, to help prevent holes from forming.31.According to the passage, bad teeth can be ____________. A.painful  B. deadly  C.preventive  D.incurable32.The writer us the boy's death as an example to show that   _______•A. not only adults but the young may suffer from teeth problemB. babies with bad teeth can easily dieC. the doctors should be responsible for the caD. the boy was not fed with his breast milk33. What's the main idea of paragraph 4 and 5?A. How to develop babies' teeth.   B. Why to protect babies' teethC. How to keep babies' teeth clean D. Why to keep babies' teeth clean34. The passage tells us that _______.A. Enamel is most widely ud to protect teeth in the worldB. Bad teeth may affect the health of adults and the youngC. Breast milk can cure babies' bad teethD. Babies' teeth should be brushed once per day35.Which of the following can be ud as the title of the passage?A. Concerns for Healthy Teeth of the Young  B. importance of Healthy Teeth of AllC. Caus of Teeth Problem   D. Solutions to Teeth Problem 题型：未知难度：其他题型

答案

小题1:D小题2:A小题3:C小题4:B小题5:A

解析

文章谈论了牙科问题的严重性，已经引起了人们的广泛担忧。小题1:D 细节题。根据第一段2,3行the teeth can cau bacteria (细菌）to go into the blood system. Tho bacteria can increa the chance of a heart attack and worn the effects of other dias.可知牙科疾病会导致很多严重的疾病，甚至会导致死亡，故D正确、小题2:A 推理题。举这个例子是为了说明不仅仅成年人会受到牙科问题的干扰而且年轻人也会受影响。故A正确。小题3:C 段落大意题。根据这两段中提及的清洗儿童牙齿的方法可知是关于如何保持儿童牙齿清洁。故C正确。小题4:B 主旨大意题。文章涉及的是牙科问题可能会影响人们的健康，无论的成年人还是儿童。小题5:A 主旨大意题。文章谈论了牙科问题的严重性，已经引起了人们的广泛担忧。

考点

据考高分专家说，试题“Bad teeth can be pai.....”主要考查你对 [健康环保类阅读 ]考点的理解。 健康环保类阅读

健康环保累阅读概念：

健康环保类文章常是介绍科学知识、生活常识和环境保护方面的短文。体裁有记叙文、 说明文、议论文和各种应用文。

健康环保类文章阅读技巧：

   健康环保类文章常是介绍科学知识、生活常识和环境保护方面的短文。阅读此类短文要以现象或事物为中心进行思考，理解现象产生的原因、条件和客观规律等。同时要抓住事物的特征、用途和相互关系等。科普环保类文章一般为说明文，从结构上看大致可分为三个部分：   第一部分一般是文章的首段，主要用来提出文章的主题，即文章想要阐述、说明的主要内容；   第二部分是文章的主体，可由若干个段落组成，对文章的主题进行展开说明；   第三部分是结尾段，对文章的主题进行归纳总结。这类文章多用一般现在时，而且一般多使用客观性词语表述。有时为了强调客观性，也常使用被动语态。   从近几年的考试题来看，科普环保类的文章越来越与人们的实际生活相接近。由于此类文章缺乏故事情节，很多同学对此类文章感到费解。但一般的科普类文章都是就事论事，需要逻辑推理和想象的时候较少，因此此类阅读题也没有同学们想象中的那么难，只要多加训练，就能较好地答题。【阅读策略】 1、概要(Summarizing)：  阅完材料后，将所阅材料浓缩，摘要，做出所阅材料的书面或口头梗概。 2、组织(Organization)：  阅读后根据阅读内容，识别观点、人物、事件之间的关系以及文章的结构关系。如：时间关系、比较或对比关系、相关关系及因果关系等。