大学英语四级模拟题及答案之十.docx

1、大学英语四级模拟题及答案之十2014年大学英语四级模拟题及答案之十Part Reading Comprehension (35 minutes) Directions: There are 4 passages in this part. Each passage is followed by some questions or unfinished statements. For each of them there are four choices marked A),B) ,C) and D). You should decide on the best choice and mark

2、the corresponding letter on the Answer Sheet with a single line through the centre. Questions 21 to 25 are based on the following passage: Increasingly, over the past ten years, peopleespecially young peoplehave become aware of the need to change their eating habits, because much of the food they ea

3、t, particularly processed foods, is not good for health. Consequently,there has been a growing interest in natural foods: foods which do not contain chemical additives and which have not been affected by chemical fertilizers widely used in farming today. Natural foods, for example, are vegetables, f

4、ruit and grain which have been grown in soil that is rich in organic matter.In simple terms, this means that the soil has been nourished by unused vegetable matter, which provides it with essential vitamins and minerals. This in itself is a natural process compared with the use of chemicals and fert

5、ilizers, the main purpose of which is to increase the amount but not the quality of foods grown in commercial farming areas. Natural foods also include animals which have been allowed to feed and move freely in healthy pastures. Compare this with what happens in the mass production of poultry: there

6、 are battery farms, for example, where thousands of chickens live crowded together in one building and are fed on food which is little better than rubbish. Chickens kept in this way are not only tasteless as food; but also produce eggs which lack important vitamins. There are other aspects of health

7、y eating which are now receiving increasing attention from experts on diet. Take, for example, the question of sugar. This is actually a nonessential food! Although a natural alternative, such as honey, can be used to sweeten food if this necessary, we can in fact do without it. It is not that sugar

8、 is harmful in itself. But it does seem to be additive: the quantity we use has grown steadily over the last centuries and in Britain today each person consumes an average of 200 pounds a year! Yet all it does is provide us with energy, in the form of calories. There are no vitamins in it, no minera

9、ls and nofiber. It is significant that nowadays fiber is considered to be an important part of a healthy diet. In white bread, for example ,the fiber has been removed. But it is present in unrefined flour and of course in vegetables. It is interesting to note that in countries where the national die

10、t contains large quantities of unrefined flour and vegetables, certain diseases are comparatively rare. Hence the emphasis is placed on the eating of whole meal bread and more vegetables by modern experts on “healthy eating”. 21.Which statement best expresses the main idea of this article? A) People

11、 should eat any food to keep themselves healthy and strong. B) People should eat natural foods to keep themselves healthy and strong. C) People should eat fiber foods to keep themselves healthy and strong. D) People should eat vegetables to keep themselves healthy and strong. 22.“Particularly proces

12、sed foods” means _. A) foods which are particularly processed by adding chemical additives B) foods which are particularly made by commercial farms C) foods which are specially produced by commercial factories D) foods which are not specially made by adding anything 23.Natural foods means _. A) food

13、s good for health B) foods not good for health C) foods such as vegetables, fruit and grain from rich organic matters soil D) crops from rich organic matters soil and meats of animals from healthy pastures 24.There are no vitamins, no minerals and no fibers in _. A) natural foods C) sugar B) animal

14、meats D) fruit 25.“Yet all it does is provide us with energy, in the form of calories.” It means _. A) processed food provides us with energy B) natural food furnishes us with vitamins and minerals C) sugar gives us enough energy in the form of calories D) fiber helps us to digest food Questions 26

15、to 30 are based on the following passage: With a tremendous roar from its rocket engine, the satellite is sent up into the sky. Minutes later, at an altitude of 300 miles, this tiny electronic moon begins to orbit about the earth. Its radio begins to transmit an astonishing amount of information abo

16、ut the satellites orbital path, the amount of radiation it detects, and the presence of meteorites. Information of all kinds races back to the earth.No human being could possibly copy down all these facts, much less remember and organize them. But an electronic computer can. The marvel of the machin

17、e age, the electronic computer has been in use only since 1946. It can do simple computationsadd,subtract, multiply and dividewith lighting speed and perfect accuracy. Some computers can work 500,000 times faster than any person can. Once it is given a “program” that is, a carefully workedout set of

18、 in structions devised by a technician trained in computer language a computer ca gather a wide range of information for many purposes. For the scientist it can get information from outer space or from the depth of the ocean. In business and industry the computer prepares factory inventories, keeps

19、track of sales trends and production needs, mails dividend checks, and makes out company payrolls. It can keep bank accounts up to date and make out electric bills. If you are planning a trip by plane, the computer will find out what to take and what space is available. Not only can the computer gat

20、her facts, it can also store them as fast as they are gathered and can pour them out whenever they are needed. The computer is really a highpowered“memory” machine that “has all the answers”or almost all.Bes ides gathering and storing information, the computer can also solve complicated problems tha

21、t once took months for people to do. At times computers seem almost human. They can “read” handprinted letters, play chess, compose music, write plays and even design other computers. Is it any wonder that they are sometimes called “thinking” machines? Even though they are taking over some of the ta

22、sks that were once accomplished by our own brains, computers are not replacing us at least not yet. Our brain has more than 10 million cells. A computer has only a few hundred thousand parts. For some time to come, then, we can safely say that our brains are at least 10, 000 times more complex than

23、a computer.How we use them is for us, not the computer, to decide. 26.In the first paragraph, the author thinks an electronic computer can _. A) copy down all the facts B) remember all the facts C) organize the facts and everything D) copy down, remember and organize all the facts 27.“Program” means

24、 _. A) a plan of what is to be done B) a complete show on a TV station at a fixed time table C) a scheduled performance D) series of coded instructions to control the operations of a computer 28.The computer is a high powered “memory” machine, which _. A) has all the ready answers or almost all to a

25、ny questions B) can remember everything C) can store everything and work for you D) has all the answers or almost to all the information that has been stored 29. “Thinking” machines suggest that _. A) they can “read” hand printed letters etc B) they really can think and do many other jobs C) they ev

26、en design other computers D) they cant think, but can do something under human control 30.Can computers do whatever they want to do?Why? A) Yes, because some computers can work 500,000 times faster than any person can. B) No, because they normally have a few hundred thousand parts. C) No, because hu

27、man brains are at least 10000 times more complex than any computers. D) No, because how a computer works is decided by human. Questions 31 to 35 are based on the following passage: No one expressed this attitude more strongly than Noah Webster (17581843). Born near Nartford, Connecticut, he received

28、 his education at Yale College and later began to practise law. But business in this profession was slow, and he was forced to turn to teaching. As a teacher, he soon discovered that the English school books then in use were unsatisfactory, and the American Revolution reduced the supply of such book

29、s as there were. Webster therefore began to work on three simple books on English, a spelling book, a grammar, and a reader, and these were the first books of their kind to be published in this country. The success of the first part was surprisingly great. It was soon issued again under the title TH

30、E AMERICAN SPELLING BOOK, and in this form about 80 million copies were sold during the next hundred years. From a profit of less than one cent a copy, Webster got most of his income for the rest of his life. Not only did the little book have great influence on many generations of school children, b

31、ut it also had the effect or turning its authors attention to questions of language. In 1806 he produced a small dictionary,and this was followed by his greatest work, AN AMERICAN DICTIONARY OF THE ENGLISH LANGUAGE, published in two volumes in1828. In both of these works and in many smaller writings

32、 he had one purpose: to show that the Englsih language in his country was a truly American thing, developing in its own special way and deserving to be considered from an independent, American point of view. As he himself wrote,“ It is not only important, but in a degree necessary, that the people of this country should