大学英语四级阅读文章

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大学英语四级阅读文章

　　在学习、工作生活中，我们会经常接触并使用试题，借助试题可以检验考试者是否已经具备获得某种资格的基本能力。什么样的试题才是好试题呢？以下是小编为大家整理的大学英语四级阅读文章，欢迎大家借鉴与参考，希望对大家有所帮助。

大学英语四级阅读文章

　　大学英语四级阅读文章 1

　　Among the more colorful characters of Leadville s golden age were H.A.W.Tabor and his second wife, Elizabeth McCourt, better known as Baby Doe . Their history is fast becoming one of the legends of the Old West. Horace Austin Warner Tabor was a school teacher in Vermont. With his first wife and two children he left Vermont by covered wagon in 1855 to homestead in Kansas. Perhaps he did not find farming to his liking, or perhaps he was lured by rumors of fortunes to be made in Colorado mines. At any rate, a few years later he moved west to the small Colorado mining camp known as California Gulch, which he later renamed Leadville when he became its leading citizen. Great deposits of lead are sure to be found here. he said.

　　As it turned out, it was silver, not lead, that was to make Leadville s fortune and wealth. Tabor knew little about mining himself, so he opened a general store, which sold everything from boots to salt, flour, and tobacco.『It was his custom to grubstake prospective miners, in other words, to supply them with food and supplies, or grub , while they looked for ore, in return for which he would get a share in the mine if one was discovered.』①He did this for a number of years, but no one that he aided ever found anything of value.

　　Finally one day in the year 1878, so the story goes, two miners came in and asked for grub . Tabor had decided to quit supplying it because he had lost too much money that way. These were persistent, however, and Tabor was too busy to argue with them. Oh help yourself. One more time won t make any difference, He said and went on selling shoes and hats to other customers. The two miners took $17 worth of supplies, in return for which they gave Tabor a one-third interest in their findings. They picked a barren place on the mountain side and began to dig. After nine days they struck a rich vein of silver. Tabor bought the shares of the other two men, and so the mine belonged to him alone. This mine, known as the Pittsburgh Mine, made 1 300 000 for Tabor in return for his $17 investment.

　　大学英语四级阅读文章 2

　　Not all sounds made by animals serve as language, and we have only to turn to that extraordinary discovery of echolocation (回声定位) in bats to see a case in which the voice plays a strictly practical role.

　　To get a full appreciation of what this means we must turn first to some recent human inventions. Everyoneknows that if he shouts near a wall or a mountainside, an echo will come back. The further off this solid obstacle, the longer time it will take for the return of the echo. A sound made by tapping on the main body of a ship will be reflected from the sea bottom, and by measuring the time interval between the taps andthe receipt of the echoes the depth of the sea at that point can be calculated. So was born the echo-sounding equipment, now in general use in ships. Every solid object will reflect a sound, varying according to the size and nature of the object. A shoal of fish will do this. So it is a comparatively simple step fromlocating the sea bottom to locating a shoal of fish. With experience, and with improved equipment, it is now possible not only to locate fish but to tell if it is herring, cod, or other well-known fish, by the pattern of its echo.

　　A few years ago it was found that certain bats emit squeaks (吱吱声) and by receiving ’he echoes they could locate and steer clear of obstacles--or locate flying insects on which they feed. This echolocation in bats is often compared with radar, the principle of which is similar.

　　练习题：

　　Choose correct answers to the question:

　　1.The main purpose of this passage is to ______.

　　A. describe that animals can make different sounds

　　B. prove that animals’ voices can play practical roles

　　C. inspire the readers to make more inventions

　　D. startle the readers with some shocking facts

　　2. The discovery of echolocation may help with all of the following EXCEPT

　　A. measuring the depth of the sea

　　B. distinguishing different kinds of fish

　　C. improving the functions of radar

　　D. varying the size and nature of an object

　　3. By saying "A shoal of fish will do this"(Lines 6-7, Para. 2), the author means ________.

　　A. only one special kind of fish can reflect sounds

　　B. only one special kind of fish can be used to help locate a ship

　　C. a large group of fish can reflect sounds

　　D. a large group of fish can be used to help locate a ship

　　4. As it is discussed in the passage, the squeaks of bats can be functionally compared with ________.

　　A. human languages

　　B. a mountainside

　　C. a shoal of fish

　　D. taps on a ship

　　5. Which of the following statements can be inferred from the passage?

　　A. Animals are more intelligent than humans.

　　B. Humans are more intelligent than animals.

　　C. Animals are often compared with human inventions.

　　D. Humans are often inspired by animals.

　　答案解析

　　1.[B] 主旨大意题。文章第1段就点明主题，明确指出以蝙蝠为例，动物发出的声音有实际作用，只有B可以概括文章的这个写作目的。

　　2.[C] 事实细节题。本题考査列举处，可用排除法解答。A、B、C在文中都有相关提及。D利用第2段中的varying制造干扰。在原文中，指的是回声因障碍物的不同而不同，而D偷换概念、曲解文意，D中的varying为及物动词，意为“改变”,显然不可能是回声定位的发现带来的功效。

　　3.[C] 词义推断题。本题考查对shoal的词义推测及代词this的`理解。依据第2段最后几句话,可推测出a shoal of fish指的是“海里的一群鱼”;this则是指上一句提到的“任何固体都可以反射声音”，因此这句话表明一大群鱼就能像一个固体一样反射声音。

　　4.[D] 推理判断题。根据最后一段可知，蝙蝠发出吱吱声可以探测障碍物的距离，而第2段也指出轻敲船体可测知海底的距离，因此在功能上,D与蝙蝠的吱吱声相同。A中的human languages在文中未提到;B和C在文中各自的例子中充当的都是障碍物的角色，因此都不正确。

　　5.[D] 推理判断题。文章先说动物的回声定位功能,再说到回声定位探测仪的发明,由此可见，是动物的某些能力启发了人类的创造，因此只有D可从文中推测。文章并没有从智力方面比较人类和动物，因此可以排除A 和B;尽管文章说到了蝙蝠和雷达的原理相似，但是C中的often一词无据可循，且C的说法浮于表面，没有说到重点，故排除。

　　大学英语四级阅读文章 3

　　Dogs are social animals and without proper training, they will behave like wild animals. They will soil your house, destroy your belongings, bark excessively,.fight other dogs and even bite you. Nearly all behavior problems are perfectly normal dog activities that occur at the wrong time or place or are directed at the wrong thing. The key to preventing or treating behavior problems is learning to teach the dog to redirect its normal behavior to outlets that are acceptable in the domestic setting.

　　One of the best things you can do for your dog and yourself is to obedience train it. Obedience training doesnt solve all behavior problems,but it is the foundation for solving just about any problem- Training opens up a line of communication between you and your dog. Effective communication is necessary to instruct your dog about what you want it to do.

　　Training is also an easy way to establish the social rank order, When your dog obeys a simple request of come here,sit， it is shooting obedience and respect for you. It is not necessary to establish yourself as top dog or leader of the dog pack by using extreme measures. You can teach your dog its subordinate role by teaching it to show submission to you. Most dogs love performing tricks for you to pleasantly accept that you are in charge.

　　Training should be fun and rewarding for you and your dog. It enrich your relationship and make living together more enjoyable A well-trained dog is more confident and can more safely be allowed a greater amount of freedom than an untrained animal.

　　Why do pet dogs love performing tricks for their masters?

　　A. To avoid being punished,

　　B. To show their affection for their masters.

　　C. To win leadership of the dog pack

　　D. To show their willingness; to obey

　　讲解答案： D本题问“为什么宠物狗喜欢为主人表演技能？”根据第三段中Training is also an easy way to establish thesocial rank order... You can teach your dog itssubordinate role by teaching it to showsubmission to you. Most dogs love performingtricks for you to pleasantly accept that you are incharge.(训练也是建立社会等级的方法。你可以通过教狗表示服从你，来教它扮演从属的角色。大多数的狗都喜欢为你表演技能以此来表示乐意接受你的主宰地位。)所以被驯服的.宠物狗喜欢为人表演技能的原因是to show their willingness to obey。所以D是正确答案。

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