题文
阅读理解。 Secondhand smoke isn't just a health threat to people. It can also hurt dogs and cats,veterinarians
say.
According to the Centers for Disease Control and Prevention,more than 126 million Americans
who don't smoke are exposed to secondhand smoke in their homes,vehicles,workplaces,and public
places. This exposure causes thousands of lung cancer and heart disease deaths among nonsmokers
every year,according to the California Environmental Protection Agency.
"Making the leap from the effects of secondhand smoke on humans to their effects on pets isn't a
big one," says veterinarian (兽医专家) Carolynn MacAllister of Oklahoma State University.
"There have been a number of scientific papers recently that have reported the significant health
threat secondhand smoke poses to pets," MacAllister said. "Secondhand smoke has been associated
with oral cancer and lymphoma in cats,lung and nasal cancer in dogs,as well as lung cancer in birds."
Studies have also shown that dogs living in a smoking household are susceptible to cancers of the
nose and sinus area,particularly if they are a long-nosed breed,because their noses have a greater
surface area that is exposed to carcinogens and a greater area for them to accumulate. Dogs affected
with nasal cancer normally don't survive for more than one year.
"Short and medium-nosed dogs are more susceptible to lung cancer,because their shorter nasal
passage aren't as effective at accumulating the inhaled secondhand smoke carcinogens," MacAllister
said. "This results in more carcinogens (致癌物质) reaching the lungs."
Birds are also at risk for lung cancer,as well as pneumonia,because their respiratory systems are
hypersensitive to any type of air pollutant.
To help prevent animals from being adversely affected by smoking,pet owners who smoke should
have a designated smoking area that is separated from the home or stop smoking altogether,MacAllister
said. 1. From the passage,we can see secondhand smoke maybe not harmful to _______. A. smokers
B. non-smokers
C. pets
D. trees2. What can be suggested according to the passage?A. Smokers can smoke anywhere.
B. Smokers can smoke at any time.
C. Smokers should smoke in the designated place.
D. Smokers must give up smoking at once.3. What kind of dogs are likely to suffer from nasal cancer?A. Long-nosed dogs
B. Short-nosed dogs
C. Medium-nosed dogs
D. Dogs without noses4. The best title of the passage is __________.A. Secondhand Smoke Causes Cancer in People
B. Secondhand Smoke Causes Cancer in Birds
C. Secondhand Smoke Causes Cancer in Pets
D. Secondhand Smoke Causes Cancer in Cats5. What is the meaning of the underlined phrase "are susceptible to"?A. are likely to be harmed by
B. are hard to be influenced by
C. are less to be effected by
D. are lucky to be caught by 题型：未知难度：其他题型
答案
1-5: DCACA 解析
该题暂无解析
考点
据考高分专家说，试题“阅读理解。 Seco.....”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。
