A woman wears a face mask to protect her from polluted air in Lanzhou, China, i

题文

A woman wears a face mask to protect her from polluted air in Lanzhou, China, in December． A new study showed air pollution might put people more at risk for heart dia than scientists had thought．Kristin Miller, a doctoral student at the University of Washington, said chances of getting the dia were related to not only which city a woman lived in, but also where in the city．The study found that the effects of air pollution were often larger within cities than between cities． The new findings make experts suspect that current pollution limits may be inadequate．Scientists examined rates of heart attack, stroke （中风） and other cardiovascular （心脏血管的） events in women with long-term exposure to air pollution． The study involved women over the age of fifty who had no sign of cardiovascular dia at the start of the rearch．The study followed the women for as long as nine years to e how they would develop cardiovascular problems． The rearchers also examined levels of fine particles （粒子，微粒） in the air in 36 areas across the country．That information came from the Environmental Protection Agency．The extremely small particles came from industrial smoke and traffic, along with things like wood-burning fireplaces in hous． In the study, every ten-microgram increa in pollution was linked to a twenty-four percent increa in the risk of a cardiovascular event．But it was related to a venty-six percent increa in the risk of death from cardiovascular dia． But just how do particles in the air damage the cardiovascular system? The particles may cau the lungs to swell and relea chemicals from the pollutants into the blood．The chemicals then could damage the heart．1．The passage mainly talks about______． A．the effects of pollution on women B．how to protect women from air pollution C．how air pollution damages a person’s heart D．the relationship between air pollution and heart dias2．The ca of the woman wearing a face mask shows ______． A．people are paying more and more attention to their health B．the woman is afraid of getting heart dia C．Lanzhou city is more heavily polluted than other cities D．air pollution is becoming more and more rious3．We can learn from the passage that _______． A．air pollution is more rious than scientists thought B．the control of air pollution is effective in some cities C．people throughout a city have the same risk of getting heart dias D．air pollution affects women more than men4．The study implies that ______． A．air pollution has a bigger effect on older women than younger women B．small particles in the air mainly come from industrial smoke C．the ri in air pollution may lead to a higher death rate from cardiovascular dia D．air pollution has been affecting people for as long as nine years in the city of Lanzhou 题型：未知难度：其他题型

答案

小题1:D小题2:D小题3:A小题4:C

解析

略

考点

据考高分专家说，试题“ A woman wears a fac.....”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。