2020高考英语暑假练习（9）

2020高考英语暑假练习（9）阅读下面短文，从每题所给的四个选项(A、B、C和D)中，选出最佳答案。Along the river banks of the Amazon and the Orinoco there lives a bird that swims before it can fly, flies like a fat chicken, eats green leaves, has the stomach of a cow and has claws(爪)on its wings when young .They build their homes about 4.6m above the river ,an important feature(特征)for the safety of the young. It is called the hoatzin.In appearance，the birds of both sexes look very much alike with brown on the back and cream and red on the underside .The head is small, with a large set of feathers on the top, bright red eyes, and blue skin. Its nearest relatives are the common birds, cuckoos. Its most striking feature, though, is only found in the young.Baby hoatzins have a claw on the leading edge of each wing and another at the end of each wing tip .Using these four claws ,together with the beak(喙),they can climb about in the bushes, looking very much like primitive birds must have done. When the young hoatzins have learned to fly, they lose their claws.During the drier months between December and March hoatzins fly about the forest in groups of 20 to 30 birds, but in April, when the rainy season begins, they collect together in smaller living units of two to seven birds for producing purposes.( ) 1. What is the text mainly about?AHoatzins in dry and rainy seasons.BThe relatives and enemies of hoatzins.CPrimitive birds and hoatzins of the Amazon.DThe appearance and living habits of hoatzins.( ) 2. Young hoatzins are different from their parents in that Athey look like young cuckoosBthey have claws on the wingsCthey eat a lot like a cowDthey live on river banks( ) 3. What can we infer about primitive birds from the text?AThey had claws to help them climb.BThey could fly long distances.CThey had four wings like hoatzins.DThey had a head with long feathers on the top.( ) 4. Why do hoatzins collect together in smaller groups when the rainy season comes?ATo find more food.BTo protect themselves better.CTo keep themselves warm.DTo produce their young.A篇1.选D。考查文章主题大意。纵观全文，文章主要讲的是hoatzin麝雉，这种鸟类的外貌以及生活习性。2.选B。根据第一段has claws(爪)on its wings when young,和第三段可知，hoatzin在幼年期是有爪子的，而长大学会飞之后就没有了。3.选A。关键是primitive“原始的，早期的”的意思。第三段第二句话。4.选D。最后一段最后一句话。阅读理解课堂练学案（5）Passage Eleven (Superconducting Materials)The stone age, The Iron Age. Entire epochs have been named for materials. So what to call the decades ahead? The choice will be tough. Welcome to the age of superstuff. Material science - once the least sexy technology is bursting with new, practical discoveries led by superconducting ceramics that may revolutionize electronics. But superconductors are just part of the picture: from house and cars to cook pots and artificial teeth, the world will someday be made of different stuff. Exotic plastics, glass and ceramics will shape the future just as surely as have genetic engineering and computer science.The key to the new materials is researchers increasing ability to manipulate substances at the molecular level. Ceramics, for example, have long been limited by their brittleness. But by minimizing the microscopic imperfections that cause it, scientists are making far stronger ceramics that still retain such qualities as hardness and heat resistance. Ford Motor Co. now uses ceramic tools to cut steel. A firm called Kyocera has created a line of ceramic scissors and knives that stay sharp for years and never rust or corrode.A similar transformation has overtaken plastics. High-strength polymers now form bridges, ice-skating rinks and helicopter rotors. And one new plastic that generates electricity when vibrated or pushed is used in electric guitars, touch sensors for robot hands and karate jackets that automatically record each punch and chop. Even plastic litter, which once threatened to permanently blot the landscape, has proved amenable to molecular tinkering. Several manufacturers now make biodegradable forms; some plastic six-pack rings for example, gradually decompose when exposed to sunlight. Researchers are developing ways to make plastics as recyclable as metal or glass. Besides, composites plastic reinforced with fibers of graphite or other compounds made the round-the-world flight of the voyager possible and have even been proved in combat: a helmet saved an infantrymans life by deflecting two bullets in the Grenada invasion.Some advanced materials are old standard with a new twist. The newest fiberoptic cable that carry telephone calls cross-country are made of glass so transparent that a piece of 100 miles thick is clearer than a standard window pane.But new materials have no impact until they are made into products. And that transition could prove difficult, for switching requires lengthy research and investment. It can be said a firmer handle on how to move to commercialization will determine the success or failure of a country in the near future.1.How many new materials are mentioned in this passage?A TwoThreeC FourD Five2.Why does the author mention genetic engineering and computer science?A To compare them with the new materials.To show the significance of the new materials on the future world.C To compare the new materials to them.D To explain his view point.3.Why is transition difficult?A Because transition requires money and time.Because many manufacturers are unwilling to change their equipment.C Because research on new materials is very difficult.DBecause it takes 10 years.4.Where lies success of a country in the New Age of superstuff?A It lies in research.It lies in investment.C It lies in innovation.D It lies in application.Vocabulary1.superstuff 超级材料2.superconducting ceramic 超导陶瓷3.exotic 神奇的4.shape 塑造，成型5.brittleness 脆性6.polymer 聚合体7.karate jacket 空手道外衣8.touch sensor 触及传感器9.each punch and chop 每一个击、打10.blot 玷污，损害风景的东西11.tinker 修补，调整12.amendable 服从于，遵循的13.biodegradable 能生物递减分解的14.six-pack rings 放六个罐子的环状物15.decompose 分解16.recyclable 可循环（使用的）17.infantryman 步兵18.deflect 使偏斜，使转向19.a new twist 一个新的观点，方法难句译注1.Material science once the least sexy technology is bursting with new, practical discoveries led by superconducting ceramics that may revolutionize electronics.【参考译文】材料科学，一度曾是最无吸引力（最不起眼）的技术，正以崭新的 ，以超导陶瓷为首的种种实用性发明绽开新颜。这种超导陶瓷可能会使电子技术彻底改变。2.Some advanced materials are old standard with a new twist. The newest fiberoptic cables that carry telephone calls cross-country are made of glass so transparent that a piece of 100 miles thick is clearer than a standard window pane.【参考译文】有些高级材料是带有新方法的老标准。最新全国电话的光纤电缆由玻璃制成。这种玻璃透明度极高，一片100英里厚的玻璃比一块标准的窗框玻璃还要清晰透明。写作方法与文章大意这是一篇介绍“超导材料”的论说文,采用一般到具体的分类写作手法。先指出未来时代的材料属于超导，然后再提出三种超导材料，再逐一说明。答案详解1.B 三种超导材料。答案再第一段最后一句“神奇的塑料、玻璃和陶瓷”。下面各段具体讲这三种材料。第二段讲陶瓷：“新材料之关键在于研究工作者不断提高在分子水平上处理物质的能力。举陶瓷为例，由于它的脆性，长期来应用范围有限。但是通过改善导致脆性的微小缺陷，科学家制造出一种保持原有硬度和抗热性，但坚实得多的陶瓷”。第三段讲塑料。“类似的转折发生在塑料上，高强度的塑料建成了桥梁、溜冰场、直升机的叶轮。一种震动或推动就能发电的新型塑料用于电子吉他上，触及传感塑料用于机械手和空手道外衣上，它能自动记录每次击打。”后面谈及塑料垃圾可以处理，或者制造可分解还原的塑料制品。塑料内加入其他化合物加强性能。第四段讲有些高级材料由新的改变，最新的光纤电缆由玻璃制成，透明度极高，100英里厚的一块其清晰度比一块普通窗玻璃还高。2.B 说明这种新材料对未来世界的意义。答案在第一段：“神奇的塑料、玻璃和陶瓷一定会象生物工程和计算机一样将改变世界。”A. 把它们和新材料相比较，这里不仅仅是比较，而是说明三者都具同样的作用改变世界。 C. 把新材料比作它们。也不仅仅是比喻比拟。 与A一样没有说到核心电。D. 说明他的观点。太笼统。3.A 转折需要钱和时间。见最后一段“可是新材料只有制成产品才有影响，而这个转折可能很困难，因为转折需要长期的研究和投资。可以这么说，在不久的将来，更牢牢地掌握如何把材料转变成商品将决定一个国家之成败。”B. 因为许多制造商不愿改变他们的设备。C. 因为新材料的研究非常困难。 D. 转折要华上十年时间。这三项文内没有涉及。4.D 在超级材料时代已过之成功在于应用。A. 在于研究。B. 在于投资。C. 在于革新。这三项都是应用的部分前提。其中A和B文内提到，C项文内未涉及。阅读理解阅读下面短文，从每题所给的四个选项(A、B、C和D)中，选出最佳答案。Many people think a telephone is essential. But I think it is a pest and a time waster. Very often you find it impossible to escape from some idle or curious chatter-box, or from somebody who wants something for nothing. If you have a telephone in your own house, you will admit that it tends to ring when you are asleep, or in the middle of a meal or a conversation, or when you are just going out, or when you are taking your bath. Are you strong minded enough to ignore it, to say to yourself,“Ah, well, it will all be the same in a hundred years time” You are not. You think there may be some important news or messages for you. I can assure you that if a message is really important it will reach you sooner or later. Have you never rushed dripping from the bath, or chewing from the table, or dazed from the bed, only to be told that you are a wrong number?But you will say, you need not have your name printed in the telephone directory, and you can have a telephone which is only usable for outgoing calls. Besides, you will say, isnt it important to have a telephone in case of emergencyillness, an accident, or fire? Of course, you are right, but here in a thickly populated country like England one is seldom far from a telephone in case of dreadful necessity.I think perhaps I had better try to justify myself by trying to prove that what I like is good. I admit that in different circumstancesif I were a tycoon(business VIP),for instance, or bed ridden I might find a telephone essential. But then if I were a taxi-driver I should find a car essential.Let me put it another way: there are two things for which the English seem to show particular talent; one is mechanical invention, the other is literature. My own business happens to be with the use of words but I see I must now stop using them. For I have just been handed a slip of paper to say that somebody is waiting to speak to me on the telephone. I think I had better ans