公共英语四级-30及答案解析.doc

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1、公共英语四级-30 及答案解析(总分：99.00，做题时间：90 分钟)一、BSection Liste(总题数：0，分数：0.00)二、BPart A/B(总题数：1，分数：4.00)（分数：4.00）(1).Name of the radio program: _（分数：0.80）填空项 1:_(2).Time of the program:_（分数：0.80）填空项 1:_(3).Visitors nationality:_（分数：0.80）填空项 1:_(4).Weather in Brighton:_（分数：0.80）填空项 1:_(5).After having dinner in

2、 a restaurant, the visitor plans to take the last train _（分数：0.80）填空项 1:_三、BPart B/B(总题数：1，分数：5.00)（分数：5.00）(1).What was the weather like in eastern Britain today?（分数：1.00）填空项 1:_(2).How much rain did Capel Curig receive?（分数：1.00）填空项 1:_(3).What was the weather like in the southwest of England?（分数：1

3、.00）填空项 1:_(4).When did the rain clear from eastern Scotland?（分数：1.00）填空项 1:_(5).Would the rain continue in eastern England?（分数：1.00）填空项 1:_四、BPart C/B(总题数：3，分数：11.00)（分数：3.00）(1).Why does the woman say she has mixed feeling? A. She wasnt quite ready to come back to campus. B. There are more endange

4、red species in zoos than in the wild. C. The birds wont learn how to keep away from people D. She might change her major.（分数：1.00）A.B.C.D.(2).What was the womans job? A. Counting wildlife. B. Cleaning cages. C. Training baby birds. D. Making puppets.（分数：1.00）A.B.C.D.(3).Why does the man mention tige

5、rs and pandas? A. He once had a job in a zoo. B. Theyre familiar examples of endangered species. C. Hes interested in the genetics of mammals. D. They also become attached to humans.（分数：1.00）A.B.C.D.（分数：4.00）(1).How many adults died in the bombing of the Federal building in Oklahoma? A. 168. B. 1187

6、. C. 149. D. Hundreds of people.（分数：1.00）A.B.C.D.(2).What can be said about McVeighs education? A. He has a college degree B. He dropped out from high school. C. He received no education. D. He is a high school graduate.（分数：1.00）A.B.C.D.(3).Which of the following statements is TRUE about McVeigh? A.

7、 He was involved in anti-government activities while in the army. B. He left the army right before the Persian Gulf War. C. He received several awards for his good performance in the Persian Gulf War. D. He worked as a security guard before the Persian Gulf War.（分数：1.00）A.B.C.D.(4).When was McVeigh

8、executed? A. in April 1995. B. In June 1995. C. In June 2001. D. In June 2002.（分数：1.00）A.B.C.D.（分数：4.00）(1).According to the passage, the average I.Q.is _. A. 85 B. 100 C. 110 D. 125（分数：1.00）A.B.C.D.(2).This passage suggests that an individuals I. Q. _. A. can be predicted at birth B. stays the same

9、 throughout his life C. can be increased by education D. is determined by his childhood（分数：1.00）_C_(4).The best statement of the main idea of the passage is that _. A. human brains differ considerably B. the brain a person is born with is important in determining his intelligence C. environment is c

10、rucial in determining a persons intelligence D. persons having identical brains will have roughly the same intelligence（分数：1.00）A.B.C.D.五、BSection Use o(总题数：1，分数：20.00)Everyone knows that taxation is necessary in a modern state: U U 1 /U /Uit, it would not be possible to pay the soldiers and policem

11、en who protect us; U U 2 /U /Uthe workers in government offices who U U 3 /U /Uour health, our food, our water, and all U U 4 /U /Uthings that we can not do for ourselves. By U U 5 /U /Uof taxation, we pay for things that we need as U U 6 /U /Uas we need somewhere to live and something to eat.In mos

12、t countries, a direct tax on persons, U U 7 /U /Uis called income tax, exists. It is arranged in such a way that the poorest people pay U U 8 /U /U, and the percentage of tax grows greater as the taxpayers U U 9 /U /Ugrows. In England, for example, the tax on the U U 10 /U /Upeople goes up as high a

13、s ninety-five percent!But countries with direct taxation nearly always have U U 11 /U /Utaxation too. Many things imported into the country have to pay taxes or“duties“. U U 12 /U /U, it is the men and women who buy the imported things in the shops who really U U 13 /U /Upay the duties, in the U U 1

14、4 /U /Uof higher prices. In some countries, too, there is a tax U U 15 /U /Uthings sold in the shops. If the most necessary things are taxed, a lot of money is collected, but the poor people suffer U U 16 /U /U. If unnecessary things like jewels and fur coats are taxed, U U 17 /U /Uis obtained, but

15、the tax is fairer, as the U U 18 /U /Upay it.Probably this last kind of indirect tax, U U 19 /U /Uwith a direct on incomes which is low for the poor and high for the rich, is U U 20 /U /Uarrangement.（分数：20.00）(1). A. because of B. instead of C. with D. without（分数：1.00）A.B.C.D.(2). A. so B. nor C. no

16、t D. all（分数：1.00）A.B.C.D.(3). A. look after B. sympathize C. consider D. see（分数：1.00）A.B.C.D.(4). A. other B. others C. the other D. many（分数：1.00）A.B.C.D.(5). A. mean B. means C. a means D. the means（分数：1.00）A.B.C.D.(6). A. many B. well C. more D. much（分数：1.00）A.B.C.D.(7). A. which B. what C. that D

17、. it（分数：1.00）A.B.C.D.(8). A. a lot B. most C. nothing D. more（分数：1.00）A.B.C.D.(9). A. income B. population C. tax D. amount（分数：1.00）A.B.C.D.(10). A. poor B. working C. rich D. richest（分数：1.00）A.B.C.D.(11). A. no B. income C. indirect D. direct（分数：1.00）A.B.C.D.(12). A. However B. So C. Of course D. B

18、y chance（分数：1.00）A.B.C.D.(13). A. have to B. will C. are willing to D. should（分数：1.00）A.B.C.D.(14). A. way B. form C. name D. terms（分数：1.00）A.B.C.D.(15). A. about B. on C. for D. form（分数：1.00）A.B.C.D.(16). A. least B. highly C. less D. most（分数：1.00）A.B.C.D.(17). A. less money B. more money C. fewer

19、money D. most money（分数：1.00）A.B.C.D.(18). A. people B. poor C. rich D. country（分数：1.00）A.B.C.D.(19). A. including B. along C. dealing D. and（分数：1.00）A.B.C.D.(20). A. the best B. the worst C. good D. better（分数：1.00）A.B.C.D.六、BSection Readi(总题数：0，分数：0.00)七、BPart A/B(总题数：0，分数：0.00)八、BPassage 1/B(总题数：1，

20、分数：5.00)Its plain common sensethe more happiness you feel, the less unhappiness you experience. Its plain common sense, but its not true. Recent research reveals that happiness and unhappiness are not really two sides of the same emotion. They are two distinct feelings that, coexisting, rise and fal

21、l independently.People might think that the higher a persons level of unhappiness, the lower their level of happiness and vice versa. But when researchers measure peoples average levels of happiness and unhappiness, they often find little relationship between the two.The recognition that feelings of

22、 happiness and unhappiness can coexist much like love and hate in a close relationship may offer valuable clues on how to lead a happier life. It suggests, for example, that changing or avoiding things that make you miserable may well make you less miserable, but probably wont make you any happier.

23、That advice is backed up by an extraordinary series of studies which indicate that a genetic predisposition for unhappiness may run in certain families. On the other hand, researchers have found happiness doesnt appear to be anyones heritage. The capacity for joy is a talent you develop largely for

24、yourself.Psychologists have settled on a working definition of the feelinghappiness is a sense of subjective well-being. They have also begun to find out whos happy, who isnt and why. UTo date, /Uthe research hasnt found a simple formula for a happy life, but it has discovered some of the actions an

25、d attitudes that seem to bring people closer to that most desired of feelings.Why is unhappiness less influenced by environment? When we are happy, we are more responsive to people and keep up connections better than when we are feeling sad. This doesnt mean, however, that some people are born to be

26、 sad and thats that. Genes may predispose one to unhappiness, but disposition can be influenced by personal choice. You can increase your happiness through your own actions.（分数：5.00）(1).According to the text, it is true that _ A. unhappiness is more inherited than affected by environment. B. happine

27、ss and unhappiness are mutually conditional. C. unhappiness is subject to external more than internal factors. D. happiness is an uncontrollable subjective feeling.（分数：1.00）A.B.C.D.(2).The author argues that one can achieve happiness by _ A. maintaining it at an average level. B. escaping miserable

28、occurrences in life. C. pursuing it with ones painstaking effort. D. realizing its coexistence with unhappiness.（分数：1.00）A.B.C.D.(3).The phrase “To date“ (Par. 4) can be best replaced by _ A. As a result. B. In addition. C. At present. D. Until now.（分数：1.00）A.B.C.D.(4).What do you think the author b

29、elieves about happiness and unhappiness? A. One feels unhappy owing to his miserable origin. B. They are independent but existing concurrently C. One feels happy by participating in more activities. D. They are actions and attitudes taken by human beings.（分数：1.00）A.B.C.D.(5).The sentence “thats that

30、“ (Par. 5) probably means Some people are born to be sad _ A. and the situation cannot be altered. B. and happiness remains inaccessible. C. but they dont think much about it. D. but they remain unconscious of it.（分数：1.00）A.B.C.D.九、BPassage 2/B(总题数：1，分数：5.00)Bacteria are microscopic organisms which

31、live on the surface of objects. They are one of the most ancient living things, which exist on this planet for nearly 4,000 million years. Do you know the size of bacteria? It can only be measured in microns. Maybe you have not a standard in your mind how long a micron is. One micron is a thousandth

32、 of a millimeter, which equals about the diameter of a pinhead. Therefore, even if we enlarged the rounded bacterium a thousand times, it would only be the size of a pinhead. We barely see bacteria by a magnification an ordinary microscope of 100 times, even if we try, we cannot make out anything of

33、 their structure. There are normally millions of them together, for they can multiply really fast.Scientists have found that some bacteria have attached to wavy-looking “hairs“ called flagella. The flagella rotate, pushing the bacteria through the water. Others can glide along over surfaces by some

34、little-understood mechanism. Bacteria are so small that they are influenced by the movements of the chemical molecules around them. They are active all the time. Even the bacteria without flagella often bound about in the water. They are pushed here and there, colliding with the watery molecules.Bac

35、teria cannot be detected because they dont produce bad odor or change the color or texture of the food. Therefore, when people eat the food with many bacteria, they are likely to get hepatitis A, acute gastroenteritis and a host of other illnesses. Many households have refrigerators to prevent from

36、bacteria. Of course, freezing food slows or stops the growth of bacteria, however, when food is thawed, the bacteria will become reactivated. Bacteria can not be totally destroyed before the food is thoroughly cooked. We need to know that not all bacteria are in connection with illness. Just some ba

37、cteria can cause disease. They are called pathogenic bacteria. Fortunately our immune system can protect us from them.Bacteria are prokaryotes ( single cells that do not contain a nucleus). It may seem weird to classify organisms according to such details, but with or without a nucleus is not trivia

38、l at all. The division between prokaryotes and eukaryotes (all organisms with a nucleus inside their cells) is of extreme importance in biology, and is the result of a major evolutionary breakthrough. Visit our program tomorrow if you want to know more, thank you.（分数：5.00）(1).Which of the following

39、is true according to the first paragraph? A. Bacteria are as big as a pinhead. B. Bacteria can not be seen by an ordinary microscope. C. Bacteria are hard to see because they often live together. D. Bacteria are very small so they can only be measured in microns.（分数：1.00）A.B.C.D.(2).Which statement

40、is not true about flagella? A. Flagella are part of bacteria. B. Flagella help bacteria to move. C. Flagella are always going round and round. D. Flagella are like waves.（分数：1.00）A.B.C.D.(3).What is the meaning of “collide“ in the second paragraph? A. strike B. connect C. bounce D. mix（分数：1.00）A.B.C

41、.D.(4).Which of the following ways can help people prevent from bacteria? A. Smell and have a careful look at the food. B. Only eat the food stored in refrigerator. C. Ensure the food is totally heated before eating. D. Eat the food before they are thawed.（分数：1.00）A.B.C.D.(5).What can be inferred fr

42、om the last paragraph? A. Whether or not to have a nucleus is important in biology. B. The speaker will tell us how to distinguish bacteria tomorrow. C. Evolution will be the main topic of the program next time. D. Eukaryotes develop from prokaryotes.（分数：1.00）A.B.C.D.十、BPassage 3/B(总题数：1，分数：5.00)Dur

43、ing the adolescence, the development of political ideology becomes apparent in the individual: ideology here is defined as the presence of roughly consistent attitudes, more or less organized in reference to a more encompassing set of general principles. As such, political ideology is dim or absent

44、at the beginning of adolescence. Its acquisition by the adolescent, in even the most modest sense, requires the acquisition of relatively sophisticated cognitive skills; the ability to manage abstractness, to synthesize and generalize, to imagine the future. These are accompanied by a steady advance

45、 in the ability to understand principles.The childs rapid acquisition of political knowledge also promotes the growth of political ideology during adolescence. By knowledge I mean more than the dull “facts“ such as the composition of country government, that the child is exposed to in the convention

46、al ninth-grade school course. Nor do I mean only information on current political realities. These are facts of knowledge, but they are less critical than the adolescents absorption of a feeling for those many unspoken assumptions about the political system that comprise theU common ground of understanding,/U for example, what the state can “appropr