大学英语四级-126及答案解析.doc
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1、大学英语四级-126 及答案解析(总分:100.00,做题时间:90 分钟)一、Reading Comprehensio(总题数:4,分数:100.00)Oceanography has been defined as “The application of all sciences to the study of the sea“. Before the nineteenth century, scientists with an interest in the sea were few and far between. Certainly Newton considered some th
2、eoretical aspects of it in his writings, but he was reluctant to go to sea to further his work. For most people the sea was remote, and with the exception of early intercontinental travelers or others who earned a living from the sea, there was little reason to ask many questions about it, let alone
3、 to ask what lay beneath the surface. The first time that the question “What is at the bottom of the oceans?“ had to be answered with any commercial consequence was when the laying of a telegraph cable from Europe to America was proposed. The engineers had to know the depth profile (起伏形状) of the rou
4、te to estimate the length of cable that had to be manufactured. It was to Maury of the US Navy that the Atlantic Telegraph Company turned, in 1853, for information on this matter. In the 1840s, Maury had been responsible for encouraging voyages during which soundings (测深) were taken to investigate t
5、he depths of the North Atlantic and Pacific Oceans. Later, some of his findings aroused much popular interest in his book The Physical Geography of the Sea . The cable was laid, but not until 1866 was the connection made permanent and reliable. At the early attempts, the cable failed and when it was
6、 taken out for repairs it was found to be covered in lining growths, a fact which defied contemporary scientific opinion that there was no life in the deeper parts of the sea. Within a few years oceanography was under way. In 1872 Thomson led a scientific expedition (考察), which lasted for four years
7、 and brought home thousands of samples from the sea. Their classification and analysis occupied scientists for years and led to a five-volume report, the last volume being published in 1895.(分数:25.00)(1).The proposal to lay a telegraph cable from Europe to America made oceanographic studies take on(
8、分数:5.00)A.an academic aspectB.a military aspectC.a business aspectD.an international aspect(2).It was _ that asked Maury for help in oceanographic studies.(分数:5.00)A.the American NavyB.some early intercontinental travelersC.those who earned a lining from the seaD.the company which proposed to lay an
9、 undersea cable(3).The aim of the voyages Maury was responsible for in the 1840 was _.(分数:5.00)A.to make some sounding experiments in the oceansB.to collect sample of sea plants and animalsC.to estimate the length of cable that was neededD.to measure the depths of the two oceans(4).“Defied“ in the 5
10、th paragraph probably means “_“.(分数:5.00)A.doubtedB.gave proof toC.challengedD.agreed to(5).This passage is mainly about _.(分数:5.00)A.the beginnings of oceanographyB.the laying of the first undersea cableC.the investigation of ocean depthsD.the early intercontinental communicationsThe earliest proce
11、ss of malting paper was done almost 5,000 years ago in Egypt and the Nile Valley. In those days, paper was made from strips of the papyrus plant. Modem paper-making began in China about 2,000 years ago. This process produced paper from cloth, straw, wood or the bark of trees. The raw materials are s
12、truck over and over until they become loose. Then they are mixed with water. After the water has been removed, the flat, thin form remaining is permitted to dry. This becomes a sheet of paper. Large machines started to be used for making paper near the end of the 16th century. Today, paper-malting i
13、s a big business. But it is still possible to make paper by hand, since the steps are the same as using big machines. You should choose paper with small amounts of printing. Old envelopes are good for this reason. Colored paper also can be used, as well as small amounts of newspaper. Small pieces of
14、 rags or cloth can be added. These should be cut into pieces about 5 centimeters by 5 centimeters. Everything is placed in a container, covered with water, and brought to a boil. It is mixed for about 2 hours with some common chemicals and then allowed to cool. Then it is left until most of the wate
15、r dries up. The substance left, called pulp, can be stored until you are ready to make paper. When you are ready, the pulp is mixed with water again. Then the pulp is poured into a special box or mold. The mold is made of small squares of wire that hold the shape and thickness of the paper. To help
16、dry the paper, the mold lets the water flow through the small wire squares. After several more drying steps, the paper is carefully lifted back from the mold. It is now strong enough to be touched. The paper is smoothed and pressed to remove trapped air. You can use a common electric iron used for p
17、ressing clothes.(分数:25.00)(1).What is mentioned about the earliest process of malting paper?(分数:5.00)A.Its procedures.B.Its influences.C.Its purposes.D.Its materials.(2).It is suggested that we “should choose paper with small amounts of printing“ to _.(分数:5.00)A.make paper by ourselvesB.renew the ol
18、d envelopesC.make various colored paperD.create our own newspaper(3).Whether the paper is strong enough to be touched is determined by _.(分数:5.00)A.how long the pulp is storedB.how thick the paper isC.how much water remainsD.what type of chemicals are used(4).When the paper is lifted from the mold,
19、it is time to(分数:5.00)A.make it smoothB.make it strongC.decorate itD.iron it(5).The passage is most probably intended to(分数:5.00)A.introduce the history of paper-makingB.describe the process of paper-makingC.compare the ancient and the modern paper-maltingD.argue the possibility of paper-malting by
20、handSome pessimistic experts feel that the automobile is bound to fall into disuse. They see a day in the not-too-distant future when all autos will be abandoned and allowed to rust. Other authorities, however, think the auto is here to stay. They hold that the car will remain a leading means of urb
21、an travel in the foreseeable future. The motorcar will undoubtedly change significantly over the next 30 years. It should become smaller, safer, and more economical, and should not be powered by the gasoline engine. The car of the future should be far more pollution-free than present types. Regardle
22、ss of its power source, the auto in the future will still be the main problem in urban traffic congestion (拥挤). One proposed solution to this problem is the automated highway system. When the auto enters the highway system, a retractable (可伸缩的) arm will drop from the auto and make contact with a rai
23、l, which is similar to those powering subway trains electrically. Once attached to the rail, the car will become electrically powered from the system, and control of the vehicle will pass to a central computer. The computer will then monitor all of the car“s movements. The driver will use a telephon
24、e to dial instructions about his destination into the system. The computer will calculate the best route, and reserve space for the car all the way to the correct exit from the highway. The driver will then be free to relax and wait for the buzzer (蜂鸣器) that will warn him of his coming exit. It is e
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- 大学 英语四 126 答案 解析 DOC
