A single night of taking the drug Ecstasy (摇头丸) can cau rious brain damage a

题文

A single night of taking the drug Ecstasy (摇头丸) can cau rious brain damage and speed up the start of Parkinson’s dia（帕金森综合症）, scientists say. Just two or three Ecstasy tablets can permanently destroy brain cells that affect movement and reasoning, according to American rearch that links the drug to Parkinson’s for the first time.A study by a team at Johns Hopkins University in Baltimore, Maryland, involving squirrel monkeys and baboons (狒狒) found that both species suffered permanent damage to key cells, which are lost in Parkinson’s, after receiving three low dos（剂量）of Ecstasy at three-hour periods.The study is particularly important becau baboons are one of the best animal models for the human brain. George Ricaurte, who led the rearch, said that the widespread abu of drug might have caud vere damage. “The most troubling result is that young adults using Ecstasy may be increasing their risk of developing Parkinsonism as they get older.”Alan Leshner, a former director of the US National Institute on Drug Abu, said, “This study emphasizes the multi-aspect damage that Ecstasy caus to urs. We’ve long known that repeated u damages brain cells. But this study shows that even very occasional（偶尔） u can have long-lasting effects on many different brain systems. It nds an important message to young people: don’t experiment with your own brain.”Janet Betts, a mother who teenage daughter Leah died after a single Ecstasy tablet in 1995, said, “This comes as no surpri. But people can’t e the effects at first, and they say it won’t happen to them. We’ll e the symptoms later, just as we have with smoking.”小题1:The article is intended to ______.A．explain the bad effects of drugs on people’s healthB．warn young people of the risk of taking the drug EcstasyC．persuade people out of such bad habits as smoking and using drugsD．tell us the links between the drug Ecstasy and the animal models小题2:We know from the passage that a low do of Ecstasy ______.A．can permanently destroy one’s brain cellsB．can cau rious brain damage occasionallyC．will result in immediate symptoms D．may bring on Parkinson’s at once小题3:Why are squirrel monkeys and baboons involved in the experiments?A．Becau the animals usually take drugs.B．Becau their brain is similar to human beings.C．Becau there is a model in the animals’ brains.D．Becau they will soon get well after the experiment.小题4:The underlined word “it” in the last paragraph probably refers to””.A．Leah’s death after a single tabletB．the symptoms after smokingC．the damage to the brain systemsD．repeated u of the drug 题型：未知难度：其他题型

答案

小题1:B小题1:A小题1:B小题1:C

解析

略

考点

据考高分专家说，试题“A single night of ta.....”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。