[外语类试卷]大学英语四级模拟试卷536及答案与解析.doc
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1、大学英语四级模拟试卷 536及答案与解析 一、 Part I Writing (30 minutes) 1 For this part, you are required to write a composition in three paragraphs. You are given the first sentence of the three paragraphs. Your part of the composition should be no less than 120 words, not including the words given. Remember to write
2、clearly. You should write this composition on the Composition Sheet. Silence Is Not Always Gold 1. Many people cherish tile motto that “silence is gold“. 2. However, nowadays if you always keep silence you will lose many chances to succeed. 3. Silence, therefore, is no longer always gold. 二、 Part II
3、 Reading Comprehension (Skimming and Scanning) (15 minutes) Directions: In this part, you will have 15 minutes to go over the passage quickly and answer the questions attached to the passage. For questions 1-7, mark: Y (for YES) if the statement agrees with the information given in the passage; N (f
4、or NO) if the statement contradicts the information given in the passage; NG (for NOT GIVEN) if the information is not given in the passage. 1 Man and Nature The balance of nature is a delicate system of checks and counter - checks. Nature has its own way of checking the life and distribution of the
5、 different organisms and helping their growth. An epidemic may be considered nature s way of checking population growth. Man in his attempt to conquer nature and to utilise it to his advantage has interfered with the balance of nature, thereby creating problems of a complex nature. Nature s ways of
6、maintaining the balance are intricate and not easily understood and man s application of his scientific knowledge and techniques has upset this balance so much that today, being aware of the disastrous consequences, he takes measures against them. No animal or plant can live in isolation ,for differ
7、ent organisms are parts of a vast dynamic complex of living things. As no man or community is self - sufficient, no organism can live by itself. When man interferes with the interdependence and interrelationships of the different organisms, he is, in effect, upsetting their balanced relationships an
8、d his action can have a chain reaction. If we prevent fish eggs from being deposited in a pond, we are allowing an unchecked growth of weeds. The waterfowl which feeds on tadpoles will look for alternatives, thereby tending to upset these blanced relationships. It is important that for the preservat
9、ion of beauty in nature the balance of nature is maintained. Man for his own survival has to make his peace with plant and animal life, the size and distribution of which he has interfered with. It is to be noted that in every plant and animal community there is a trend towards a balance between the
10、 different species. When each successive species is of the right number to maintain a constant population, a balance between the different species is maintained and this state is referred to as the climax stage. Man is forever upsetting the balance of the climax stage. He has added to the numbers of
11、 animals and plants that are useful to him. In the process he has unwittingly helped the increase in the number of insects and vermin and as a result he has to wage a relentless war against them. If man continues to interfere with the balance of nature, it is possible that some animals and birds may
12、 soon become extinct. The indiscriminate hunting of whales has reduced the number of some species almost to the verge of extinction and international laws have been drawn up to protect them. The balance of nature is to be maintained in order to prevent soil deterioration. Human intervention has alte
13、red the established relationship between the plants of an area and the soil of that area. Animals introduced by man, sheep and goats for example, have led to widespread soil deterioration. By cutting down trees or by practising unsuitable systems of agriculture, man destroys the crumb structure of s
14、oil, thereby making it susceptible to erosion. Soil erosion results in looss of soil fertility and maintaining soil fertility is considered the biggest problem facing mankind apart from the prevention of war. The increase in world population and the growth of civilisation have been the two major fac
15、tors that have led man to cut down forests on an unprecedented scale and the erosion caused by the cutting down of huge areas of forests has resulted in floods on a scale hitherto unknown. Soil erosion can whittle away soil fertility and if adequate and effective measures are not taken it can become
16、 a menacing spectre tearing at the prosperity of many countries. Pollution, in its different forms, interferes with the balance of nature. Water pollution affects natures balance in oceans, lakes and rivers. Man - made pollution of water is due to municipal sewage, dumping by factories and the depos
17、iting of pesticides. Solid wastes can permeate the soil and pollute lakes and rivers. Man has to adopt the philosophy of thrift by conserving natural resources and not destroying them by interfering with the balance of nature. He has to exploit natural resources, taking the environment as a whole. H
18、e has to practise fertilization, soil conservation and water management to make a balanced use of the resources of nature possible. 2 Natures ways of maintaining the balance are simple and easily understood. ( A) Y ( B) N ( C) NG 3 Man should take the philosophy of thrift by conserving natural resou
19、rces and not destroying them. ( A) Y ( B) N ( C) NG 4 The example of tadpoles, fish eggs and waterfowl is used to show that the activities of man could give rise to negative chain reactions. ( A) Y ( B) N ( C) NG 5 If man continues to interfere with the balance of nature, it is possible that man may
20、 soon become extinct. ( A) Y ( B) N ( C) NG 6 By upsetting the balance of the climax stage, man will encourage the indiscriminate hunting of whales for food. ( A) Y ( B) N ( C) NG 7 The balance of nature can prevent soil deterioration. ( A) Y ( B) N ( C) NG 8 Water pollution cant affect natures bala
21、nce in oceans, rakes and rivers. ( A) Y ( B) N ( C) NG 9 The balance of nature is to be maintained so as to prevent _ 10 According to the passage, the peoples living of many countries could be seriously threatened by_ 11 We learn from the passage that to maintain the balance, c of nature, we will ha
22、ve to_ Section A Directions: In this section, you will hear 8 short conversations and 2 long conversations. At the end of each conversation, one or more questions will be asked about what was said. Both the conversation and the questions will be spoken only once. After each question there will be a
23、pause. During the pause, you must read the four choices marked A, B, C and D, and decide which is the best answer. ( A) He saw the big tower he visited on TV. ( B) He has visited the TV tower twice. ( C) He has visited the TV tower once. ( D) He will visit the TV tower in June. ( A) He has to work w
24、ith his brother. ( B) He has no definite plans. ( C) He usually works on weekends. ( D) His plan depends on the woman. ( A) In a laundry. ( B) In an elevator. ( C) In a library. ( D) In a bakery. ( A) Go on with the game. ( B) Draw pictures on the computer. ( C) Review his lessons. ( D) Have a good
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- 外语类 试卷 大学 英语四 模拟 536 答案 解析 DOC
