题文
Researchers have found more evidence that suggests a relationship between races (种族) and rates (率) of lung cancer among smokers. A new study shows that black people and Native Hawaiians are more likely to develop lung cancer from smoking. It compared their risk to whites, Japanese-Americans and Latinos.Researchers at the University of Southern California and the University of Hawaii did the new study. The New England Journal of Medicine published the findings. The eight-year research studied more than 180,000 people. They included present and former smokers and people who never smoked. Almost 2.000 people in the study developed lung cancer.
Researchers say genetics (遗传学) might help explain the racial and ethnic（种族的） differences. There could be differences in how people's bodies react to smoke. But environmental influences, including the way people smoke, could also make a difference.
African-Americans and Latinos in the study are reported smoking the fewest cigarettes per day. Whites are the heaviest smokers. But the scientists point out that blacks have been reported to breathe cigarette smoke more deeply than white smokers. This could fill their lungs with more of the chemicals in tobacco that cause cancer.
Scientists know that some diseases effect different groups differently. And some drug companies have begun to develop racially targeted (针对) medicines. Last June, the United States Food and Drug Administration approved a drug designed to treat heart failure in black patients. The name is BiDil. The agency called it "a step toward the promise of personalized medicine."
小题1:Researchers agree that it is that may probably determine black people’s risk of lung cancer.A．the larger amount of smoking than white peopleB．the living style or habit of the blacksC．the depth of cigarette smoke into their lungsD．the physical strength to react to cigarette smoke小题2:People in the new study are made up of .A．heavy smokers in AmericaB．smokers and non-smokersC．the Asians and HawaiiansD．the black and white people小题3:The production of BiDil referred to in the last paragraph is to .A．explain different races react to some diseases differentlyB．tell the readers that racial differences exist in smokersC．show a big step people have taken in the medicine areaD．support the idea that it is easy for blacks to have cancers小题4:Which of the following statements is TRUE according to the author?A．The way of smoking may increase the risk of lung cancer.B．Race has nothing to do with the risk of having a lung cancer.C．The research was started by the New England Journal of Medicine.D．he risk of lung cancer lies I how much a person smokes. 题型：未知难度：其他题型
答案
小题1:C
小题2:B
小题3:A
小题4:A
解析
本文介绍了不同种族得肺癌的几率和原因，主要是由抽烟的不同方式导致，还有药品公司也针对这一现象研发了适合黑人的药物。
小题1:细节题:从第四段的句子：But the scientists point out that blacks have been reported to breathe cigarette smoke more deeply than white smokers. This could fill their lungs with more of the chemicals in tobacco that cause cancer. 可知黑人把烟吸到肺里增加得肺癌的危险。选C。
小题2:细节题：从第二段的句子：They included present and former smokers and people who never smoked.可知受测试的人有抽烟的还有不抽烟的。选B
小题3:细节题：从最后一段的句子：Scientists know that some diseases effect different groups differently. 可知不同种族的人对不同疾病有不同的反映。选A
小题4:细节题：从第三段的句子：But environmental influences, including the way people smoke, could also make a difference.可知抽烟的方式 肺癌的危险，答案是A
点评：这篇文章难度适中，但和题目相关的有的涉及到一些长句的理解，要求考生长句的分析能力，并考查学生的概括能力，题目也以细节题为主，只要细心就行。
考点
据考高分专家说，试题“Researchers have fou.....”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。
