1、综合单元测试Level 4 Unit 2Listening ComprehensionTrue Or FalseDirections: In this part, you will hear ten statements. Each statement is based on the texts you have just learned in this unit. Statements one to six are about Text A, and statements seven to ten are about Text B. Each statement will be read O
2、NLY ONCE. After you hear each statement, decide whether it is True or False. True False参考答案:False1. 答题人数 :39正确 / 错误 : 8 / 31 正确率 : 20% True False参考答案:True2. 答题人数 :39正确 / 错误 : 26 / 13 正确率 : 66% True False参考答案:True3. 答题人数 :39正确 / 错误 : 22 / 17 正确率 : 56% True False参考答案:True4. 答题人数 :39正确 / 错误 : 25 / 14 正
3、确率 : 64% True False参考答案:False5. 答题人数 :39正确 / 错误 : 6 / 33 正确率 : 15% True False参考答案:False6. 答题人数 :39正确 / 错误 : 9 / 30 正确率 : 23% True False参考答案:True7. 答题人数 :39正确 / 错误 : 25 / 14 正确率 : 64% True False参考答案:False8. 答题人数 :39正确 / 错误 : 17 / 22 正确率 : 43% True False参考答案:True9. 答题人数 :39正确 / 错误 : 27 / 12 正确率 : 69%
4、True False参考答案:True10. 答题人数 :39正确 / 错误 : 19 / 20 正确率 : 48% True Or FalseDirections: In this part, you will hear ten statements. Each statement is based on the texts you have just learned in this unit. Statements one to six are about Text A, and statements seven to ten are about Text B. Each statemen
5、t will be read ONLY ONCE. After you hear each statement, decide whether it is True or False. True False参考答案:False11. 答题人数 :44正确 / 错误 : 10 / 34 正确率 : 22% True False参考答案:True12. 答题人数 :44正确 / 错误 : 29 / 15 正确率 : 65% True False参考答案:False13. 答题人数 :44正确 / 错误 : 25 / 19 正确率 : 56% True False参考答案:False14. 答题人数
6、 :44正确 / 错误 : 12 / 32 正确率 : 27% True False参考答案:True15. 答题人数 :44正确 / 错误 : 30 / 14 正确率 : 68% True False参考答案:True16. 答题人数 :44正确 / 错误 : 30 / 14 正确率 : 68% True False参考答案:True17. 答题人数 :44正确 / 错误 : 20 / 24 正确率 : 45% True False参考答案:False18. 答题人数 :44正确 / 错误 : 8 / 36 正确率 : 18% True False参考答案:True19. 答题人数 :44正
7、确 / 错误 : 19 / 25 正确率 : 43% True False参考答案:True20. 答题人数 :44正确 / 错误 : 24 / 20 正确率 : 54% Spot DictationDirections: In this part of the test, you will listen to a passage and it will not be written out in full for you. You will hear the passage TWICE. While listening, you are required to fill in the bla
8、nks with the exact words you hear.In what now seems like the prehistoric times of computer history, the earths postwar era, there was quite a wide-spread concern that computers would take over the world from man one day. Already today, less than forty years later, as computes are 21 us of more and m
9、ore of the routine tasks in business and in our personal lives, we are faced with a less 22 but also less foreseen problem. People tend to be over-trusting of computers and are 23 to challenge their authority. Indeed, they behave as if they were hardly aware that wrong buttons may be 24 , or that a
10、computer may simply malfunction.25 , there would be no point in investing in a computer if you had to check all its answers, but people should also rely on their own 26 computers and check the machine when they have the 27 that something has gone wrong.Questioning and routine double-checks must 28 t
11、o be as much a part of good business as they were in pre-computer days. Maybe each computer should come with the 29 : for all the help this computer may provide, it should not be seen as a 30 for fundamental thinking and reasoning skills.参考答案:relieving21. 答题人数 :46正确 / 错误 : 6 / 40 正确率 : 13% 参考答案:dram
12、atic22. 答题人数 :46正确 / 错误 : 3 / 43 正确率 : 6% 参考答案:reluctant23. 答题人数 :46正确 / 错误 : 6 / 40 正确率 : 13% 参考答案:pressed24. 答题人数 :46正确 / 错误 : 25 / 21 正确率 : 54% 参考答案:Obviously25. 答题人数 :46正确 / 错误 : 14 / 32 正确率 : 30% 参考答案:internal26. 答题人数 :46正确 / 错误 : 20 / 26 正确率 : 43% 27. 参考答案:feeling答题人数 :46正确 / 错误 : 20 / 26 正确率
13、: 43% 参考答案:continue28. 答题人数 :46正确 / 错误 : 25 / 21 正确率 : 54% 参考答案:warning29. 答题人数 :46正确 / 错误 : 23 / 23 正确率 : 50% 参考答案:substitute30. 答题人数 :46正确 / 错误 : 9 / 37 正确率 : 19% Spot DictationDirections: In this part of the test, you will listen to a passage and it will not be written out in full for you. You wi
14、ll hear the passage TWICE. While listening, you are required to fill in the blanks with the exact words you hear.Inland waters may be grouped into two general classes: standing waters and flowing waters. As is often the case, the 31 between these two classes is not sharp and clear. A pond is an exam
15、ple of standing water. But most ponds are fed by 32 or brooks and most have an outlet. Thus some 33 of changing water flows through them. On the other hand, a river is an example of 34 water. In some places, however, a river may have such a slow current that it is very difficult to detect.Standing i
16、nland waters differ in size, in age, and in many abiotic 35 characteristics. They range in size from roadside puddles to the Caspian Sea. Puddles may last for only a few days or weeks; ponds, for a few hundred to a thousand years. In 36 , lakes are older, though the waters of some 37 “lakes“ disappe
17、ar completely during each dry season. Standing waters vary from very 38 to very deep, from clear to muddy, from fresh to salty.In flowing waters we roughly 39 between brooks, creeks, and rivers. The size and age of flowing waters are unimportant. Speed of flow, clearness, oxygen content, and other 4
18、0 characteristics are used by scientists in studying flowing-water ecosystems.参考答案:boundary31. 答题人数 :37正确 / 错误 : 15 / 22 正确率 : 40% 参考答案:springs32. 答题人数 :37正确 / 错误 : 14 / 23 正确率 : 37% 参考答案:current33. 答题人数 :37正确 / 错误 : 13 / 24 正确率 : 35% 参考答案:flowing34. 答题人数 :37正确 / 错误 : 24 / 13 正确率 : 64% 参考答案:environm
19、ental35. 答题人数 :37正确 / 错误 : 14 / 23 正确率 : 37% 参考答案:general36. 答题人数 :37正确 / 错误 : 25 / 12 正确率 : 67% 参考答案:tropical37. 答题人数 :37正确 / 错误 : 6 / 31 正确率 : 16% 参考答案:shallow38. 答题人数 :37正确 / 错误 : 18 / 19 正确率 : 48% 参考答案:distinguish39. 答题人数 :37正确 / 错误 : 17 / 20 正确率 : 45% 参考答案:chemical40. 答题人数 :37正确 / 错误 : 17 / 20
20、正确率 : 45% Reading ComprehensionDirections: There are two passages in this part. Each passage is followed by some questions or unfinished statements. For each of them there are four choices. Click on the best choice.Insurance is the sharing of risks. Nearly everyone is exposed to risk of some sort. T
21、he house-owner, for example, knows that his property can be damaged by fire; the ship-owner knows that his vessel may be lost at sea; the breadwinner knows that he may die at an early age and leave his family the poorer. On the other hand, not every house is damaged by fire nor every vessel lost at
22、sea. If these persons each put a small sum into a pool, there will be enough to meet the needs of the few who do suffer losses. In other words, the losses of the few are met from the contribution of the many. This is the basis of insurance. Those who pay the contribution are known as “insured“ and t
23、hose who administer the pool of contributions as “insurers.“Not all risks lend themselves to being covered by insurance. Broadly speaking, the ordinary risks of business and speculation cannot be covered. The risk that buyers will not buy goods at the prices offered is not of a kind that can be stat
24、istically estimated - and risks can only be insured against if they can be so estimated.The legal basis of all insurance is the “policy.“ This is the printed form of contract on paper of the best quality. It states that in return for the regular payment by the insured of a named sum of money, called
25、 the “premium,“ which is usually paid every year, the insurer will pay a sum of money or compensation for loss, if the risk or event insured against actually happens. The wording of policies, particularly in marine insurance, often seems very old-fashioned, but there is a sound reason for this. Over
26、 a large number of years many law cases have been brought to clear up the meaning of doubtful phrases in policies. The law courts, in their judgments, have given these phrases a definite and indisputable meaning, and to avoid future disputes the phrases have continued to be used in policies even whe
27、n they have passed out of normal use in speech. The best title for this passage is _.A. Premium (1)B. The Insured (2)C. Insurance (26)D. Policy (1) 参考答案:Insurance41. 答题人数 :38 正确 / 错误 : 26 / 12 正确率 : 68% According to the passage, insurance is necessary because _.42. A. nearly everybody suffers loss a
28、nd needs compensation (10)B. the insured who suffer loss may get compensation (15)C. the contribution of the insured is a huge sum (3)D. those who administer insurance are ready to offer help (1) 参考答案:the insured who suffer loss may get compensation答题人数 :38 正确 / 错误 : 15 / 23 正确率 : 39% The insurance
29、of ordinary business risks is not possible because _.A. business risks cannot be covered (0)B. business risks cannot be estimated (29)C. the premiums for business risks are high (0)D. the cost of controlling business risks is high (0) 参考答案:business risks cannot be estimated43. 答题人数 :38 正确 / 错误 : 29
30、/ 9 正确率 : 76% Which of the following statements is true?A. The old-fashioned wording of policies is still applied in the insurance contract. (14)B. A small number of law cases have been brought to explain the meaning of doubtful phrases in policies. (4)C. Some new phrases are used in policies to avo
31、id future disputes. (11)D. All risks can be covered if premiums are paid. (0) 44. 参考答案:The old-fashioned wording of policies is still applied in the insurance contract.答题人数 :38 正确 / 错误 : 14 / 24 正确率 : 36% The term “the pool of contributions“ in the first paragraph most probably means _.A. the total
32、sum of money paid by the insured (21)B. the total cost of administering insurance (3)C. the total amount of estimated payment (1)D. the total number of the insured (4) 参考答案:the total sum of money paid by the insured45. 答题人数 :38 正确 / 错误 : 21 / 17 正确率 : 55% A rapid means of long-distance transportatio
33、n became a necessity for the United States as settlement spread ever farther westward. The early trains were impractical curiosities, and for a long time the railroad companies met with troublesome mechanical problems. The most serious ones were the construction of rails able to bear the load, and t
34、he development of a safe, effective stopping system. Once these were solved, the railroad was established as the best means of land transportation. By 1860 there were thousands of miles of railroads crossing the eastern mountain ranges and reaching westward to the Mississippi. There were also region
35、al southern and western lines.The high point in railroad building came with the construction of the first transcontinental system. In 1862 Congress authorized two western railroad companies to build lines from Nebraska westward and from California eastward to a meeting point, so as to complete a tra
36、nscontinental crossing linking the Atlantic seaboard with the Pacific. The Government helped the railroads generously with money and land. Actual work on this project began four years later. The Central Pacific Company, starting from California, used Chinese labor, while the Union Pacific employed c
37、rews of Irish laborers. The two groups worked at remarkable speed, each trying to cover a greater distance than the other. In 1869 they met at a place called Promontory in what is now the state of Utah. Many visitors came there for the great occasion. There were joyous celebrations all over the coun
38、try, with parades and the ringing of church bells to honor the great achievement.The railroad was very important in encouraging westward movement. It also helped build up industry and farming by moving raw materials and by distributing products rapidly to distant markets. In linking towns and people
39、 to one another it helped unify the United States.The major problems with Americas railroad system in the mid-19th century lay in _.A. poor quality rails and unreliable stopping systems (22)B. lack of financial support for development (0)C. limited railroad lines (2)D. lack of a transcontinental rai
40、lroad (3) 参考答案:poor quality rails and unreliable stopping systems46. 答题人数 :38 正确 / 错误 : 22 / 16 正确率 : 57% What most likely made people think about a transcontinental railroad?A. The possibility of government support for such a task. (4)B. The need to explore Utah. (0)C. The need to connect the east
41、coast with the west. (21)D. The need to develop the railroad industry in the west. (2) 参考答案:The need to connect the east coast with the west.47. 答题人数 :38 正确 / 错误 : 21 / 17 正确率 : 55% 48. The construction of the transcontinental railroad took _.A. 9 years (0)B. 7 years (9)C. 4 years (5)D. 3 years (13)
42、 参考答案:3 years答题人数 :38 正确 / 错误 : 13 / 25 正确率 : 34% The building of the first transcontinental system _.A. brought about a rapid growth of industry and farming in the west (17)B. attracted many visitors to the construction sites (8)C. attracted laborers from Europe (1)D. encouraged people to travel al
43、l over the country (1) 参考答案:brought about a rapid growth of industry and farming in the west49. 答题人数 :38 正确 / 错误 : 17 / 21 正确率 : 44% The best title for this passage would be _.A. Settlements Spread Westward (1)B. The Coast-to-Coast Railroad: A Vital Link (18)C. American Railroad History (6)D. The Im
44、portance of Trains in the American Economy (2) 50. 参考答案:The Coast-to-Coast Railroad: A Vital Link答题人数 :38 正确 / 错误 : 18 / 20 正确率 : 47% Agriculture is the number one industry in the United States and agricultural products are the countrys leading export. American farmers manage to feed not only the to
45、tal population of the United States, but also millions of other people throughout the rest of the world. Corn and soybean exports alone account for approximately 75 percent of the amount sold in world markets.This productivity, however, has its price. Intensive cultivation exposes the earth to the d
46、amaging forces of nature. Every year wind and water remove tons of rich soil from the nations croplands.Each field is covered by a limited amount of topsoil, the upper layer of earth which is richest in the nutrients and minerals necessary for growing crops. Ever since the first farmers arrived in t
47、he Midwest almost 200 years ago, cultivation and, consequently, erosion have been decreasing the supply of topsoil. In the 1830s, nearly two feet of rich, black topsoil covered the Midwest. Today the average depth is only eight inches, and every decade another inch is blown or washed away. This eros
48、ion is steadily decreasing the productivity of valuable cropland. A United States Agricultural Department survey states that if erosion continues at its present rate, corn and soybean yields in the Midwest may drop as much as 30 percent over the next 50 years.So far, farmers have been able to compen
49、sate for the loss of fertile topsoil by applying more chemical fertilizers to their fields; however, while this practice has increased crop yields, it has been devastating for ecology. Agriculture has become one of the biggest polluters of the nations precious water supply. Rivers, lakes, and underground reserves of water are being filled in and poisoned by soil and chemicals carried by drainage from eroding fields. Furthermore, fertilizers only replenish the soil; they do not
