A cheap drug that can stop bleeding in people recently injured in an accident co

题文

A cheap drug that can stop bleeding in people recently injured in an accident could potentially save the lives of tens of thousands worldwide, a new study says. Rearchers studied the effects of tranexamic acid （凝血酸）, or TXA, in more than 10,000 injured people in 40 countries who received the drug within 8 hours of being injured. The study was published in the medical journal Lancet. Doctors found that patients who got TXA had a 15percent lower chance of dying from hemorrhage than tho who didn’t get it . They also had a 10 percent lower chance of dying from any other cau, including organ failure and a head injury. The study was paid for by the British government. The drug is commonly ud in wealthy countries during elective surgeries(外科手术) to stop bleeding , but isn’t ud for accident victims. TXA is off-patent and made by many companies. It costs about $4.5 per gram, and a typical do is two grams. It is usually given via an injection（注射） and would be relatively easy to introduce, even in poor countries, experts said. Previous tests of the drug regarded its u in elective surgeries, such as heart operations, but this was the first study to test the drug on accident victims. Doctors were worried it might increa side effects such as blood clots （凝块）in the heart and lungs, strokes, or heart attacks. There was no evidence of that in the Lancet study, though the authors said it was possible they might have misd some of the incidents. For people between 5 and 45, accidents are the cond leading cau of death worldwide after AIDS, and about 600,000 injured patients bleed to death every year. Experts estimated that if TXA were readily available, between 70,000 and 100,000 lives a year could be saved. Though the drug wasn’t tested on children , experts said it would almost certainly work with them as well.小题1:The underlined word” hemorrhage” in Paragraph 2 probably means ________A．rious illnessB．heart diaC．heavy bleedingD．lack of drug小题2:What can we learn about TXA from the passage?A．It can only be made in EnglandB．It was only ud in operations beforeC．It is a patented drugD．It is mainly ud in poor countries小题3:Doctors were worried about using TXA becau ________A．a lot of patients died unexpectedly after using itB．it has no treatment effect on patientsC．it can cau blood clots or strokeD．they hadn’t ud it on accident victims before小题4: What do we know from the last paragraph?A．It is a pity that TXA wasn’t widely ud on injured patients beforeB．Tests have proved that TXA can be ud on childrenC．People between 5 and 45 should be injected with TXA every yearD．Accidents are the first leading cau of death worldwide. 题型：未知难度：其他题型

答案

小题1:C小题1:B小题1:D小题1:A

解析

小题1:猜词题：第一段：A cheap drug that can stop bleeding in people recently injured in an accident 介绍了一种可以止血的便宜的药，这里指这种药物TXA可以阻止死于出血引起的死亡。选 C小题1:从第三段的句子：The drug is commonly ud in wealthy countries during elective surgeries(外科手术) to stop bleeding , but isn’t ud for accident victims. 可知以前TXA 指用于手术上。选B小题1:推理题：从第四段的句子;Doctors were worried it might increa side effects such as blood clots （凝块）in the heart and lungs, strokes, or heart attacks. 可知因为以前没有在手术中使用过，所以医生很担心。选D小题1:推理题：从倒数第一段的句子：Experts estimated that if TXA were readily available, between 70,000 and 100,000 lives a year could be saved.可知TXA 以前没有用于出事故的病人身上很遗憾，不然就会救了很多人的命。选A

考点

据考高分专家说，试题“A cheap drug that ca.....”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。