| 高三第二轮专题复习----阅读理解(新课标版高三英语教案教学设计) |
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教学内容：阅读理解的解题指导及相关练习。 三维目标：、 （1） 知识目标：了解阅读理解的命题特点、解题方法及技巧。 （2） 能力目标：熟练掌握阅读理解的考核项目及解题思路、备考策略。 （3） 情感目标：揭开阅读理解的神秘面纱，使学生树立信心，从容应对。 教学重点：阅读理解的解题方法及技巧。 教学难点：如何从对整篇文章的把握，对特定细节以及复杂句子的理解方面提高学生的归纳、推理、判断能力，选出最佳选项。 教学方法：演绎归纳法。通过对此题型的讲解和归纳，使学生能够更容易从方法上去把握，从练习中去体会其解题的规律。 教学课时：3～4课时 教学用具：多媒体课件；黑板； 教学过程： Step 1 Introduction 2007年广东省高考英语阅读理解题的考查目的: 高考阅读理解要求考生在20分钟左右的时间内，完成对三篇不同题材、体裁文章的理解。另外，今年还增加了信息匹配题。要求考生在5分钟左右的时间内，完成对一篇文章有关信息的筛选和匹配。阅读理解考查的不仅是考生对整篇文章的把握能力，还考查了他们快速捕捉信息、准确理解特定细节以及复杂句子的能力；考生不仅要理解文章的表层意思，更重要的是要通过文章的表层去合理推断、挖掘文章的隐含意义、延伸意义。这是对考生能力、智力、心理的一个综合检验。阅读理解的好坏在很大程度上决定着英语考试成绩。 2007年广东省高考英语阅读理解题的命题形式 高考阅读理解试题的类型主要分为四种：细节理解题、推理判断题、猜测词义题和主旨大意题。它们常见的提问形式如下： （1） 细节理解题常见的提问形式 Which of the following (statements) is TRUE/not TRUE? According to the passage, who(what, where ,when, why, how, etc,)…? The following are mentioned EXCEPT______? Why does the author say…? Where in the passage does the author describe…? (2) 推理判断题常见的提问形式 The writer implies that______ It can be inferred from the passage that______ It suggests that_______ It can be included from the passage that_____ We can draw a conclusion that_____ We can learn from the passage that____ (3)猜测词义题常见的提问形式 The underlined word “hit”( in paragraph 1) probably means___ What does the underlined part“reimburse you” probably mean? By saying “it is all worth it” in the last paragraph ,the author means that ______ (4)主旨大意题常见的提问形式 What is the main idea of the passage? The best title for the passage might be____ The main purpose of the passage is to _____ The passage mainly tells us /is mainly about___ Step 2 Main content **阅读理解解题技巧 我们结合《英语周报》高三广州专版第30,31期的专题复习内容研以及配套的例题分析(见《英语周报》),针对高考阅读理解的四种主要题型,给学生做解题策略指导和技巧总结. 策略指导：先浏览一遍题目，把题目的要求储存在大脑中，带着疑问去快速阅读，然后找出与题目相关的信息词句加以理解分析，去伪存真。此种办法能有效地避免做细节理解题时的失误。 【技巧总结】准确捕捉信息，注意对信息进行综合分析，分清主次、真伪，避免受信息的干扰，陷入高考题所设下的"陷阱"，误选干扰项，因为某些干扰选项在文章中也能找到"依据"，具有很强的迷惑性。 2. 如何进行推理判断，做好推理判断题 策略指导：深层含义通常是隐藏在文字背后的延伸之意，弦外之音，如作者的意图、倾向、语气，人物的性格、心理、情感，故事的结局，事情的因果关系等。因此大家需调动自己的逻辑思维能力，透过字里行间，去严密推理，合理想象。 【技巧总结】隐含信息并非"空穴来风"， 而是"有源之水"，即隐含信息也是以文章的语言为载体。大家应准确捕捉信息，调动智力因素，严密推理，合理想象，忌"凭空想象 "或"断章取义"。在阅读理解中结合自己的常识进行判断是必要的，但决不能以常识取代信息分析。推理判断既要严密，又要灵活。 3. 如何进行词义的判断，做好语意理解题 策略指导：首先从词汇所处的语境进行分析，注意上下文之间的关系，如：如果出现that is, that is to say或破折号等，我们可以断定，后面的内容是对前面内容的解释；如果出现转折词but, however, yet以及表示相反结果的on the contrary, on the other hand等，我们可以从所给内容相反的意义去考虑。 【技巧总结】高考语意判断题很多都是考查旧词新义的理解。因此大家需把词汇或短句的字面意义与语境和上下文结合起来，选择最切合文章内容，最符合上下文逻辑的意义，切忌望文生义。 4. 如何抓住文章的中心和主线，做好主旨大意题 策略指导： 读完一篇短文后应有意识地回味一下文章的大致内容，理一理文章的脉络，体会一下段与段之间的内在联系，这样做文章的中心一般都能概括出来, 涉及文章主旨大意方面的题目自然会在头脑中由模糊变清晰。 【技巧总结】我们在归纳文章主题时，一定要注意选项的内涵和外延必须能恰如其分地概括文章的主题，既不能范围过大，也不能把某一细节或侧面误当作主题。阅读时我们还应注意捕捉文章出现频率较高的中心词汇以及文章和段落的主题句。在选择文章题目时，还应注意语言方面的特点：文章题目往往具有凝练、醒目的特点。 5. 猜测词义题 猜测词义是从特定的角度考查考生的阅读理解能力和处理生词的能力。猜测词义包括对词、词组和句意的理解，是高考英语试题阅读理解中的一类必考题。猜测词义题常见的解题方法： （一）上下文线索猜测词义 任何一篇文章中的句子在内容上都不是绝对孤立的，都跟句子所在的段落及整篇文章有关。利用上下文提供的情景和线索，进行合乎逻辑的综合分析而推测词义，是阅读过程中的一大关键，也是高考的热点。 如：If he thinks he can invite me out, he is all wet. I don’t like to be with him. A. drunk B. sweating C. happy D. mistaken 分析：根据I don’t like to be with him我们感受到说话人的语气。我不愿意跟他在一起，那么，他要邀请我出去是不可能的 他就大错特错了。因此答案D。 （二）根据定义或解释猜测词义 阅读文章中的有些生词尤其是新闻报导及科普类文章中的生词，往往在其后有对该词进行解释说明性的短语或句子，如to be, that is , mean, stand for, namely, to refer to, to mean ,in other words等，有时也以同位语、定语从句的形式出现，或用破折号、括号来表示。 如：Some ships carried cargo such as coal, oil and military supplies(军用物资),while others carried only passengers. 分析：such as后所列举物品均为“货物”，由此推断cargo的意思相同，和后面的passengers形成对比。 （三）. 根据反义词或反义关系 有的文章作者为了增强表达效果，会用一对反义词揭示事物的不同点，形成鲜明的对比，这时只要把握其中的一词，就不难推出另一词的含义，这种句子多见unlike, although, but, yet, while, on the contrary, on the other hand, for one thing, for another, instead of, rather than等信息词。如：One idea about business is that it can be treated as a game of perfect information. Quite the reverse, business polite, life itself is games which we must normally play with very imperfect information. A. Quite right. B. Time enough. C. Most unlike. D. Just the opposite. 分析：由前句中perfect information到后面imperfect information这一组对比关系的词，我们可以推断应为“对比、相反”的意思。 (四). 根据同义词或近义词关系 Millions of animals die each year on Us roads, the Highway administration reports. In fact, only about 80 ocelots, an endangered wild cat exist in the US today. The main reason? Roadkill. 分析：从后面的同位语an endangered wild cat可知“ocelot”是一种野生猫 （五）利用例证性线索 某些冷僻的词汇后面会举一个例子，使词汇具体易懂。等连接性词语往往用来举例说明前面较难理解的名词。 如：You can take any of the periodicals: The World of English, Foreign Language Teaching in School, or English Learning. 分析：通过后面的例子：《英语世界》、《中小学外语教学》、《英语学习》，可知periodicals为“期刊杂志” （六）根据构词法猜测词义 阅读中常会遇到一些由所熟悉的单词派生或合成的新词，可利用构词法知识来推测其意思。 如：Exhibition officials said that a person bitten by one of these snakes would need at least 80ml of an anti-poison medicine to be saved. 分析：anti—poison 是由poison加前缀anti-构成的，anti-意思是“反对、排斥、抵抗”，由此可猜出anti-poison是“解毒、抗毒”的意思。 5. 结构复杂的长句子出现在阅读理解中往往造成大家心理上的紧张，有时读了好几遍还不知道句子的意思，白白浪费了时间,如何对待阅读理解中的长句子? 策略指导：阅读理解中的结构复杂的句子一般分为两大类：第一类是由复合句或并列句构成的长复杂句子；第二类是省略句。对于第一类句子，大家应抓其主干成分，理解其主体意思，其他的成分都是对主体意思的修饰和补充。对于第二类句子，大家应通过上下文找出省略成分，把句子补充完整。 【技巧总结】结构复杂的句子往往出现在说明文或议论文中，这是造成考生心理紧张的主要原因。大家应冷静下来，结合文章所说明或议论的中心话题，抓住主干，层层理解。 6.信息匹配题 主要考察学生的速读能力，即在有限的时间内理解、总结信息并且能快速找到相关的信息的能力。学生要学会寻读（scan），抓关键信息，然后进行匹配。 Step 3 Homework and consolidation exercises 1. 《英语周报》高三广州专版第30,31期的专题复习内容。 2. 《英语周报》高三广州专版第33-34期的2007年高考英语模拟试题（一 ）——（十二）一共12套。 3. 2006年和2007年全国各地的英语高考试题中的阅读理解。 补充材料： 阅读理解应测试的能力 阅读理解旨在考查考生理解总体和特定信息的能力。 1. 理解主旨要义的能力 任何一篇文章都有一个主旨要义。有时从文章的第一个段落甚至第一个句子即可以得出文章的主旨要义。从这个段落或句子，读者可以知道文章描述的是谁或什么即文章的主题，也会了解作者希望读者了解主题方面的哪些内容。有时，文章的主旨要义则需要从文章的字里行间进行推断。这类试题主要考查考生的略读文章、领会大意的能力，有时候它 对考生的归纳、概括能力有一定的要求。 2. 理解文中具体细节信息的能力 一篇文章的主题和中心确定之后，还需要有大量的细节信息支持。这些细节对于理解全文的内容至关重要，同时也是归纳和概括文章中心思想的基础，因而不容忽视。 3. 根据上下文猜测生词的词义的能力 正确理解文章中单词或短语的含义是理解文章的第一步，也是理解文章的基础。不懂得单词的含义根本就谈不上理解文章。但是，有时候英语单词的含义并非等同于词典上标注的汉语意思，其含义随不同的语境会有所不同。根据上下文正确理解灵活多变的词义， 才算是真正初步具备了一定的阅读理解能力。 4. 做出简单判断和推理的能力 在实际阅读活动中，有时候需要根据文章提供的线索和事实，进行逻辑推理，推测作 者未提到的事实或某事情发生的可能性。 5. 理解文章的基本结构的能力 英语文章讲究主题段和主题句。主题段通常在文章的开头，主题句可能在某一段的开头、中间或结尾，作用是交代该段的中心思想，再由全段展开或讨论这个意思。段与段之间通常有词语连接，承上启下，使文章行文连贯。如果希望准确、深刻地理解一篇文章，必须对文章的结构有所了解，把握住全文的文脉，即句与句、段与段之间的逻辑关系。对 这种能力的考查一般反映在文章的中心思想、文中某段的大意或指代关系的题目中。 6. 理解作者的意图和态度的能力 每篇文章都有一个特定的写作目的，或是向读者传递某个信息，或是愉悦读者，或是讲授某个道理。而这些信息通常不是明确表达出来，而是隐含在文章之中。因此，这类问 题要求考生在理解文章总体的基础之上，去领会作者的眼外之意。 下面结合2007年广东高考阅读理解试题，具体分析对这些能力的考查： A How should one invest a sum of money in these days of inflation (通货膨胀)? Left in a bank it will hardly keep its value, however high the interest rate. Only a brave man, or a very rich one, dares to buy and sell on the Stock Market. Today it seems that one of the best ways to protect your saving and even increase your wealth is to buy beautiful objects from the past. Here I am going to offer some advice on collecting antique clocks, which I personally consider are among the most interesting of antiques. I sometimes wonder what a being from another planet might report back about our way of life. "The planet Earth is ruled by a mysterious creature that sits or stands in a room and makes a strange ticking sound, it has a face with twelve black marks and two hands. Men can do nothing without it's permission, and it fastens its young round people's wrists so that everywhere men go they are still under its control. This creature is the real master of Earth and men are its slaves. " Whether or not we are slaves of time today depends on our culture and personality, but it is believed that many years ago kings kept special slaves to tell the time. Certain men were very clever at measuring the time of day according to the beating of their own hearts. They were made to stand in a fixed place and every hour or so would shout the time. So it seems that the first clocks were human beings. However, men quickly found more convenient and reliable ways of telling the time. They learned to use the shadows cast by the sun. They marked the hours on candles, used sand in hourglasses, and invented water-clocks. Indeed, any serious student of antique should spend as much time as possible visiting palaces, stately homes and museums to see some of the finest examples of clocks from the past. Antique clocks could be very expensive, but one of the joys of collecting clocks is that it is still possible to find quite cheap ones for your own home. After all, if you are going to be ruled by time, why not invest in an antique clock and perhaps make a future profit? 41. According to the passage, collecting antique clocks______. A. can hardly keep the value of your savings B. will cost much of your savings C. may increase your wealth D. needs your bravery 42. By quoting (引用) the remark of a being from another planet, the author intends to________. A. suggest human beings are controlled by a clock B. describe why clocks can rule the planet Earth C. tell readers what clocks look like D. compare clocks to human beings 43. Which of the following is NOT mentioned as a way to measure the time? A. Counting the beating of one's own heart. B. Making use of candles, sand and water. C. Observing shadows cast by the sun. D. Keeping slaves busy day and night. 44. The underlined phrase "stately homes"in paragraph 4 means________. A. state-owned houses B. houses in very good condition C. grand houses open to the public D. houses where statesmen meet regularly 45. The purpose of the passage is_______. A. to introduce the culture of antique clocks B. to offer some advice on collecting antique clocks C. to compare different ways to make a future profit D. to explain convenient and reliable ways of telling time [导读] 这是一篇叙议结合的散文。人们在通货膨胀的今天应该怎样投资一笔钱呢？存在银行里，这笔钱几乎不能够保值，无论存款利息多么高。只有勇敢的人或是富有者才敢于在股票市场买卖。今天保护你的储蓄甚至增加你的财富最好方法之一似乎是购买过去遗传下来的漂亮的物品。因此，作者顺理成章地提出一些关于收藏古董闹钟的忠告，奉劝人 们投资收藏古董闹钟以便将来盈利。 Key: 41. C 42. A 43. D 44. C 45. B 41. C。细节事实理解题。收集闹钟可以增加你的财富。根据第1段的句子：Today it seems that one of the best ways to protect your saving and even increase your wealth is to buy beautiful objects from the past. Here I am going to offer some advice on collecting antique clocks, which I personally consider are among the most interesting of antiques. 今天保护你的储蓄甚至增加你的财富最好方法之一似乎是购买过去的漂亮的物品。这里我打算提供一些关于收集古董闹钟的忠告，我个人认为它们是最令人感兴趣的古董之一。再看最后一段最后一句：After all, if you are going to be ruled by time, why not invest in an antique clock and perhaps make a future profit?别忘了，如果你打算受时间制约，请投资收藏古董闹钟以便将 来盈利吧？ 42. A。深层含义理解题。作者引用外星人的话，目的是为了说明人类被闹钟所控制。根据第2段的引文意思：有时候我想知道一个外星人关于我们的生活方式可能会反馈回去的报告内容是什么。“地球这个行星被神秘的动物控制，这种动物坐在或站在一个房间里并发出一种奇怪的滴答声，它有一张脸，脸上有12个黑色的标记，还有两只手。如果没有它的命令人们什么事情也不做，并且它把它那年轻的圆圆的人们的手腕系得紧紧地，这样，无论人们走到那里，都处于它的控制之下。这个动物是地球的真正的主人，人是它的 ” 奴隶。 43. D。细节判断题。A项与第2段的下列句子吻合：Certain men were very clever at measuring the time of day according to the beating of their own hearts.; B项与第3段的下列句 子吻合：They marked the hours on candles, used sand in hourglasses, and invented water-clocks；C项与第3段的下列句子吻合：They learned to use the shadows cast by the sun.；D项的含义是：“让奴隶日夜忙碌”，这与第2段的下列句子不一致：... but it is believed that many years ago kings kept special slaves to tell the time.但是人们相信许多年之前国王们畜养了专用的奴隶来辨别时间。 44. C。词义猜测题。state-owned houses国有的房子；houses in very good condition状况良好的房子；grand houses open to the public对公众开放的宏伟的房子；houses where statesmen meet regularly政治家们经常集会的房子。根据第4段的信息词student, visiting palaces和museums判断，认真研究古董的学生应该尽可能多花时间参观宫殿、宏伟的房 子和博物馆，可以看见一些过去遗传下来的最精致的闹钟的珍品。 45. B。写作意图题。作者的写作目的是为了提出一些关于收藏古董闹钟的忠告。见第1段句子：Here I am going to offer some advice on collecting antique clocks, which I personally consider are among the most interesting of antiques. 这里我打算提供一些关于收藏古董闹钟 的忠告，我个人认为它们是最令人感兴趣的古董之一。 B Do you want to live with a strong sense of peacefulness, happiness, goodness, and self-respect? The collection of happiness actions broadly categorized as "honor" help you create this life of good feelings. Here's an example to show how honorable actions create happiness. Say a store clerk fails to charge us for an item. If we keep silent, and profit from the clerk's mistake, we would drive home with a sense of sneaky excitement. Later we might tell our family or friends about our good fortune. On the other hand, if we tell the clerk about the uncharged item, the clerk would be grateful and thank us for our honesty. We would leave the store with a quiet sense of honor that we might never share with another soul. Then, what is it to do with our sense of happiness? In the first case, where we don't tell the clerk, a couple of things would happen. Deep down inside we would know ourselves as a type of thief. In the process, we would lose some peace of mind and self-respect. We would also demonstrate that we cannot be trusted, since we advertise our dishonor by telling our family and friends. We damage our own reputations by telling others. In contrast, bringing the error to the clerk's attention causes different things to happen. Immediately the clerk knows us to be honorable. Upon leaving the store, we feel honorable and our self-respect is increased. Whenever we take honorable action we gain the deep internal rewards of goodness and a sense of nobility. There is a beautiful positive cycle that is created by living a life of honorable actions. Honorable thoughts lead to honorable actions. Honorable actions lead us to a happier existence. And it's easy to think and act honorably again when we're happy. While the positive cycle can be difficult to start, once it's started, it's easy to continue. Keeping on doing good deeds brings us peace of mind, which is important for our happiness. 46. According to the passage, the positive action in the example contributes to our . A. self-respect B. financial rewards C. advertising ability D. friendly relationship 47. The author thinks that keeping silent about the uncharged item is equal to . A. lying B. stealing C. cheating D. advertising 48. The phrase "bringing the error to the clerk's attention" (in para. 5) means . A. telling the truth to the clerk B. offering advice to the clerk C. asking the clerk to be more attentive D. reminding the clerk of the charged item 49. How will we feel if we let the clerk know her mistake? A. We'll be very excited. B. We'll feel unfortunate. C. We'll have a sense of honor. D. We'll feel sorry for the clerk. 50. Which of the following can be the best title of this passage? A. How to Live Truthfully B. Importance of Peacefulness C. Ways of Gaining Self-respect D. Happiness through Honorable Actions [导读] 这是一篇说理、规劝性的议论文。本文的中心是：作者提倡通过高尚的行为获得幸福，规劝人们多行善事获得幸福，以形成一种美丽的积极的循环。高尚的思想行为可以使你的生活具有一种和平感、幸福感、善良感和自尊感。过高尚行为的生活可以创造美丽的积极的循环。高尚的思想导致高尚的行为。高尚的行为致使我们幸福的生存。当我们幸福的时候，我们容易产生高尚的思想和行为。虽然积极的循环难以开启，但是，一旦开启，就容易继续下去。坚持不断地做善事会给我们到来平静的心理，这样做对我们的幸福 很重要。 Key: 46-50 ABACD 46. A。细节事实理解题。第5段第6-8句：In contrast, bringing the error to the clerk's attention causes different things to happen. Immediately the clerk knows us to be honorable. Upon leaving the store, we feel honorable and our self-respect is increased.比较而言，把这个错误引起这个职员的注意导致几件事情发生。职员立刻知道我们是高尚的（honorable）。我 们一离开商店，就感觉到是高尚的，并且我们的自尊在增加。 47. B。细节事实理解题。第5段第1-2句：In the first case, where we don't tell the clerk, a couple of things would happen. Deep down inside we would know ourselves as a type of thief. 在第一个案例中，我们不告诉那个职员，有几件事情会发生。在内心深处我们会知道我们 自己就是小偷。 48. A。句子意思猜测题。第5段分两层意思。第1-5句是第一层意思：在第一个案例中，我们不告诉那个职员，有几件事情会发生。在内心深处我们会知道我们自己就是小偷。在这个过程中，我们的心理会失去平静，也失去自尊。我们也会证明我们不可以信赖，因为我们通过告诉家里的人和朋友的方式来忠告我们的耻辱。第5段第6-8句是第二层意思：比较而言，把这个错误引起这个职员的注意导致几件事情发生。职员立刻知道我们是高尚的（honorable）。我们一离开商店，就感觉到是高尚的，并且我们的自尊在增加。通过对比这两层意思，可以判断bringing the error to the clerk's attention意思是“实话告诉这个职 员”。 49. C。细节事实理解题。第5段第7-8句：Immediately the clerk knows us to be honorable. Upon leaving the store, we feel honorable and our self-respect is increased. 职员立刻知道我们是高尚的（honorable）。我们一离开商店，就感觉到是高尚的，并且我们的自 员”。 50. D。归纳标题。结合第1段和最后一段，并综合全文，我们可以得知：通过高尚的行为获得幸福。过高尚行为的生活可以创造美丽的积极的循环。高尚的思想导致高尚的行为。高尚的行为致使我们幸福的生存。当我们幸福的时候，我们容易产生高尚的思想和行为。虽然积极的循环难以开启，但是，一旦开启，就容易继续下去。坚持不断地做善事会 给我们到来平静的心理，这样做对我们的幸福很重要。 C Malaria, the world's most widespread parasitic (寄生虫引起的)disease, kills as many as three million people every year ---- almost all of whom are under five, very poor, and African. In most years, more than five hundred million cases of illness result from the disease, although exact numbers are difficult to assess because many people don't (or can't) seek care. It is not unusual for a family earning less than two hundred dollars a year to spend a quarter of its income on malaria treatment, and what they often get no longer works. In countries like Tanzania, Mozambique, and the Gambia, no family, village, hospital, or workplace can remain unaffected for long. Malaria starts suddenly, with violent chills, which are soon followed by an intense fever and, often, headaches. As the parasites multiply, they take over the entire body. Malaria parasites live by eating the red blood cells they infect (感染) .They can also attach themselves to blood vessels in the brain. If it doesn't kill you, malaria can happen again and again for years. The disease is passed on to humans by female mosquitoes infected with one of four species of a parasite. Together, the mosquito and the parasite are the most deadly couple in the history of the earth and one of the most successful. Malaria has five thousand genes, and its ability to change rapidly to defend itself and resist new drugs has made it nearly impossible to control. Studies show that mosquitoes are passing on the virus more frequently, and there are more outbreaks in cities with large populations. Some of the disease's spread is due to global warming. For decades, the first-choice treatment for malaria parasites in Africa has been chloroquine, a chemical which is very cheap and easy to make. Unfortunately, in most parts of the world, malaria parasites have become resistant to it. Successful alternatives that help prevent resistance are already available, but they have been in short supply and are very expensive. If these drugs should fail, nobody knows what would come next. 51. According to paragraph I, many people don't seek care because . A. they are too poor B. it is unusual to seek care C. they can remain unaffected for long D. there are too many people suffering from the disease 52. People suffering from malaria . A. have to kill female mosquitoes B. have ability to defend parasites C. have their red blood cells infected D. have sudden fever, followed by chills 53. Which of the following may be the reason for the wide spread of the disease? A. Its resistance to global warming. B. Its ability to pass on the virus frequently. C. Its outbreaks in cities with large populations. D. Its ability to defend itself and resist new drugs. 54. It can be inferred from the passage that . A. no drugs have been found to treat the disease B. the alternative treatment is not easily available to most people C. malaria has developed its ability to resist parasites D. nobody knows what will be the drug to treat the disease 55. Which of the following questions has NOT been discussed in the passage? A. How can we know one is suffering from malaria? B. How many people are killed by malaria each year? C. Why are there so many people suffering from malaria? D. What has been done to keep people unaffected for long? [导读] 这是一篇介绍医学科普常识的说明文。本文主要介绍疟疾病的起因、传播、危害与治疗。疟疾（Malaria）是世界上传播最广泛的寄生虫引起的病，每年都要使三百万人致命——几乎全是5岁以下的孩子，并且是贫穷的非洲人。疟疾病本身有很多基因，对于各种新药物具有抵抗性，所以目前还没有找到根治疟疾病的最佳治疗方法和药物。 Keys: 51-55 ACDBD 51. A。细节事实理解题。见第1段第2-3句：... because many people don't (or can't) seek care. It is not unusual for a family earning less than two hundred dollars a year to spend a quarter of its income on malaria treatment, and what they often get no longer works. (多年来，有5亿多病例由这种病引起的，虽然确切的数字难以估计，) 因为许多人不去寻求（或不可能）医疗护理。这种情况对于一个年收入不到200美元的家庭并非不同寻常，因为要治疗疟疾病， 就花去年收入的四分之一，并且他们时常所得到的不再有效。 52. C。细节事实理解题。见第2段第3句：Malaria parasites live by eating the red blood cells they infect (感染) .疟疾寄生虫依靠吃他们感染的红血球生存。这说明疟疾病患者的红 血球受到感染。 53. D。细节事实理解题。这种疾病之所以广泛传播是因为它有一种自我防御和抵抗新药物的能力。见第2段倒数第3句：Malaria has five thousand genes, and its ability to change rapidly to defend itself and resist new drugs has made it nearly impossible to control.。 54. B。推理判断题。根据第3段倒数第2句：Successful alternatives that help prevent resistance are already available, but they have been in short supply and are very expensive. 一些成功的可供选择的化学药品在阻止疟疾的这种抵抗力方面已经出现效用，但是这些可供选 择的化学药品非常短缺，并且昂贵，因此大多数人不容易得到可供选择的治疗。 55. D。细节事实理解题。A项见第2段第1句：Malaria starts suddenly, with violent chills, which are soon followed by an intense fever and, often, headaches；B项见第1段第1句：... kills as many as three million people every year almost all of whom are under five, very poor, and African.；C项见第2段第3句：Malaria has five thousand genes, and its ability to change rapidly to defend itself and resist new drugs has made it nearly impossible to control.；又见第1段第2 句：... because many people don't (or can't) seek care.；D项没有提到。 |
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