It is difficult for doctors to help a person with a damaged brain. Without enoug

题文

It is difficult for doctors to help a person with a damaged brain. Without enough blood, the brain lives for only three to five minutes. More often the doctors can’t fix the damage．Sometimes they are afraid to try something to help becau it is dangerous to work on the brain. The doctors might make the person wor if he operates on the brain. Dr．Robert White, a famous professor and doctor, thinks he knows a way to help. He thinks doctors should make the brain very cold. If it is very cold, the brain can live without blood for 30 minutes. This gives the doctor a longer time to do something for the brain．Dr．White tried his idea on 13 monkeys. First he taught them to do different jobs, then he operated on them. He made the monkeys’ blood go through a machine. The machine cooled the blood. Then the machine nt the blood back to the monkeys’ brains. When the brain’s temperature was 10 ℃, Dr．White stopped the blood to the brain. After 30 minutes he turned the blood back on. He warmed the blood again. After their operations the monkeys were like they had been before. They were healthy and busy. Each one could still do the jobs the doctor had taught them．小题1:The biggest difficulty in operating on the damaged brain is that____ ．A．the time is too short for doctorsB．the patients are often too nervousC．the damage is extremely hard to fixD．the blood-cooling machine might break down小题2:The brain operation was made possible mainly by____ ．A．taking the blood out of the brainB．trying the operation on monkeys firstC．having the blood go through a machineD．lowering the brain’s temperature小题3:With Dr. White’s new idea, the operation on the damaged brain____ ．A．can last as long as 30 minutesB．can keep the brain’s blood warmC．can keep the patient’s brain healthyD．can help monkeys do different jobs小题4:What is the right order of the steps in the operation?a．nd the cooled blood back to the brain b．stop the blood to the brainc．have the blood cooled down d．operate on the brainA．a,b,c,dB．c,a,b,dC．c,b,d,aD．b,c,d,a 题型：未知难度：其他题型

答案

小题1:A小题2:D小题3:A小题4:B

解析

文章讲述了一个新的治疗脑部受伤的疗法—冷却法。小题1:细节题。根据第一段2,3行Without enough blood, the brain lives for only three to five minutes. More often the doctors can’t fix the damage．小题2:推理题。根据第二段内容He thinks doctors should make the brain very cold.可知是通过降低脑部的温度来降低危险。小题3:细节题。根据第二段2,3行the brain can live without blood for 30 minutes.小题4:排序题。根据最后一段内容可知A正确。

考点

据考高分专家说，试题“It is difficult for .....”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。