托福-43及答案解析.doc

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1、托福-43 及答案解析(总分：120.00，做题时间：90 分钟)一、BREADING/B(总题数：0，分数：0.00)Directions: Read the passage. Then answer the questions. Give yourself 20 minutes to complete this practice set.DEER POPULATIONS OF THE PUGET SOUNDTwo species of deer have been prevalent in the Puget Sound area of Washington state in the Pa

2、cific Northwest of the United States. The black-tailed deer, a low-land, west-side cousin of the mule deer of eastern Washington, is now the most common. The other species, the Columbian white-tailed deer, in earlier times was common in the open prairie country; it is now restricted to the low, mars

3、hy islands and flood plains along the lower Columbia River.Nearly any kind of plant of the forest under-story can be part of a deers diet. Where the forest inhibits the growth of grass and other meadow plants, the black-tailed deer browses on huckleberry, salal, dogwood, and almost any other shrub o

4、r herb. But this is fair-weather feeding. What keeps the black-tailed deer alive in the harsher seasons of plant decay and dormancy? One compensation for not hibernating is the built-in urge to migrate. Deer may move from high-elevation browse areas in summer down to the lowland areas in late fall.

5、Even with snow on the ground, the high bushy under-story is exposed; also snow and wind bring down leafy branches of cedar, hemlock, red alder, and other arboreal fodder.The numbers of deer have fluctuated markedly since the entry of Europeans into Puget Sound country. The early explorers and settle

6、rs told of abundant deer in the early 1800s and yet almost in the same breath bemoaned the lack of this succulent game animal. Famous explorers of the North American frontier, Lewis and Clark arrived at the mouth of the Columbia River on November 14, 1805, in nearly starved circumstances. They had e

7、xperienced great difficulty finding game west of the Rockies and not until the second of December did they kill their first elk. To keep 40 people alive that winter, they consumed approximately 150 elk and 20 deer. And when game moved out of the lowlands in early spring, the expedition decided to re

8、turn east rather than face possible starvation. Later on in the early years of the nineteenth century, when Fort Vancouver became the headquarters for the Hudsons Bay Company, deer populations continued to fluctuate. David Douglas, Scottish botanical explorer of the 1830s, found a disturbing change

9、in the animal life around the fort during the period between his first visit in 1825 and his final contact with the fort in 1832. A recent Douglas biographer states: “The deer which once picturesquely dotted the meadows around the fort were gone in 1832, hunted to extermination in order to protect t

10、he crops.“Reduction in numbers of game should have boded ill for their survival in later times. A worsening of the plight of deer was to be expected as settlers encroached on the land, logging, burning, and clearing, eventually replacing a wilderness landscape with roads, cities, towns, and factorie

11、s. No doubt the numbers of deer declined still further. Recall the fate of the Columbian white-tailed deer, now in a protected status. But for the black-tailed deer, human pressure has had just the opposite effect. Wildlife zoologist Helmut Buechner (1953), in reviewing the nature of biotic changes

12、in Washington through recorded time, says that “since the early 1940s, the state has had more deer than at any other time in its history, the winter population fluctuating around approximately 320,000 deer (mule and black-tailed deer), which will yield about 65,000 of either sex and any age annually

13、 for an indefinite period.“The causes of this population rebound are consequences of other human actions. First, the major predators of deerwolves, cougar, and lynxhave been greatly reduced in numbers. Second, conservation has been insured by limiting times for and types of hunting. But the most pro

14、found reason for the restoration of high population numbers has been the fate of the forests. Great tracts of lowland country deforested by logging, fire, or both have become ideal feeding grounds for deer. In addition to finding an increase of suitable browse, like huckleberry and vine maple, Arthu

15、r Einarsen, longtime game biologist in the Pacific Northwest, found quality of browse in the open areas to be substantially more nutritive. The protein content of shade-grown vegetation, for example, was much lower than that for plants grown in clearings.（分数：7.00）(1).According to paragraph 1, which

16、of the following is true of the white-tailed deer of Puget Sound? A. It is native to lowlands and marshes. B. It is more closely related to the mule deer of eastern Washington than to other types of deer. C. It has replaced the black-tailed deer in the open prairie. D. It no longer lives in a partic

17、ular type of habitat that it once occupied.（分数：0.50）A.B.C.D.(2).It can be inferred from the discussion in paragraph 2 that winter conditions A. cause some deer to hibernate B. make food unavailable in the highlands for deer C. make it easier for deer to locate under-story plants D. prevent deer from

18、 migrating during the winter（分数：0.50）A.B.C.D.(3).The word “inhibits“ in the passage is closest in meaning to A. consists of B. combines C. restricts D. establishes（分数：0.50）A.B.C.D.(4).The phrase “in the same breath“ in the passage is closest in meaning to A. impatiently B. humorously C. continuously

19、 D. immediately（分数：0.50）A.B.C.D.(5).The author tells the story of the explorers Lewis and Clark in paragraph 3 in order to illustrate which of the following points? A. The number of deer within the Puget Sound region has varied over time. B. Most of the explorers who came to the Puget Sound area wer

20、e primarily interested in hunting game. C. There was more game for hunting in the East of the United States than in the West. D. Individual explorers were not as successful at locating game as were the trading companies.（分数：0.50）A.B.C.D.(6).According to paragraph 3, how had Fort Vancouver changed by

21、 the time David Douglas returned in 1832? A. The fort had become the headquarters for the Hudsons Bay Company. B. Deer had begun populating the meadows around the fort. C. Deer populations near the fort had been destroyed. D. Crop yields in the area around the fort had decreased.（分数：0.50）A.B.C.D.(7)

22、.Why does the author ask readers to recall “the fate of the Columbian white-tailed deer“ in the discussion of changes in the wilderness landscape? A. To provide support for the idea that habitat destruction would lead to population decline B. To compare how two species of deer caused biotic changes

23、in the wilderness environment C. To provide an example of a species of deer that has successfully adapted to human settlement D. To argue that some deer species must be given a protected status（分数：0.50）A.B.C.D.(8).The phrase “indefinite period“ in the passage is closest in meaning to a period A. who

24、se end has not been determined B. that does not begin when expected C. that lasts only briefly D. whose importance remains unknown（分数：0.50）A.B.C.D.(9).Which of the following statements about deer populations is supported by the information in paragraph 4? A. Deer populations reached their highest po

25、int during the 1940s and then began to decline. B. The activities of settlers contributed in unexpected ways to the growth of some deer populations in later times. C. The clearing of wilderness land for construction caused biotic changes from which the black-tailed deer population has never recovere

26、d. D. Since the 1940s the winter populations of deer have fluctuated more than the summer populations have.（分数：0.50）A.B.C.D.(10).The word “rebound“ in the passage is closest in meaning to A. decline B. recovery C. exchange D. movement（分数：0.50）A.B.C.D.(11).Which of the sentences below best expresses

27、the essential information in the highlighted sentence in paragraph 5? Incorrect choices change the meaning in important ways or leave out essential information. A. Arthur Einarsens longtime familiarity with the Pacific Northwest helped him discover areas where deer had an increase in suitable browse

28、. B. Arthur Einarsen found that deforested feeding grounds provided deer with more and better food. C. Biologists like Einarsen believe it is important to find additional open areas with suitable browse for deer to inhabit. D. According to Einarsen, huckleberry and vine maple are examples of vegetat

29、ion that may someday improve the nutrition of deer in the open areas of the Pacific Northwest.（分数：0.50）A.B.C.D.(12).Which of the following is NOT mentioned in paragraph 5 as a factor that has increased deer populations? A. A reduction in the number of predators B. Restrictions on hunting C. The effe

30、cts of logging and fire D. Laws that protect feeding grounds of deer（分数：0.50）A.B.C.D.(13).Look at the four squares that indicate where the following sentence can be added to the passage.There food is available and accessible throughout the winter.Where would the sentence best fit? A. What keeps the

31、black-tailed deer alive in the harsher seasons of plant decay and dormancy? One compensation for not hibernating is the built-in urge to migrate. There food is available and accessible throughout the winter. Deer may move from high-elevation browse areas in summer down to the lowland areas in late f

32、all. Even with snow on the ground, the high bushy under-story is exposed; also snow and wind bring down leafy branches of cedar, hemlock, red alder, and other arboreal fodder. The numbers of deer have fluctuated markedly since the entry of Europeans into Puget Sound country. The early explorers and

33、settlers told of abundant deer in the early 1800s and yet almost in the same breath bemoaned the lack of this succulent game animal. B. What keeps the black-tailed deer alive in the harsher seasons of plant decay and dormancy? One compensation for not hibernating is the built-in urge to migrate. Dee

34、r may move from high-elevation browse areas in summer down to the lowland areas in late fall. There food is available and accessible throughout the winter. Even with snow on the ground, the high bushy under-story is exposed; also snow and wind bring down leafy branches of cedar, hemlock, red alder,

35、and other arboreal fodder. The numbers of deer have fluctuated markedly since the entry of Europeans into Puget Sound country. The early explorers and settlers told of abundant deer in the early 1800s and yet almost in the same breath bemoaned the lack of this succulent game animal. C. What keeps th

36、e black-tailed deer alive in the harsher seasons of plant decay and dormancy? One compensation for not hibernating is the built-in urge to migrate. Deer may move from high-elevation browse areas in summer down to the lowland areas in late fall. Even with snow on the ground, the high bushy under-stor

37、y is exposed; also snow and wind bring down leafy branches of cedar, hemlock, red alder, and other arboreal fodder. There food is available and accessible throughout the winter. The numbers of deer have fluctuated markedly since the entry of Europeans into Puget Sound country. The early explorers an

38、d settlers told of abundant deer in the early 1800s and yet almost in the same breath bemoaned the lack of this succulent game animal. D. What keeps the black-tailed deer alive in the harsher seasons of plant decay and dormancy? One compensation for not hibernating is the built-in urge to migrate. D

39、eer may move from high-elevation browse areas in summer down to the lowland areas in late fall. Even with snow on the ground, the high bushy under-story is exposed; also snow and wind bring down leafy branches of cedar, hemlock, red alder, and other arboreal fodder. The numbers of deer have fluctuat

40、ed markedly since the entry of Europeans into Puget Sound country. There food is available and accessible throughout the winter. The early explorers and settlers told of abundant deer in the early 1800s and yet almost in the same breath bemoaned the lack of this succulent game animal.（分数：0.50）A.B.C.

41、D.(14).Directions: An introductory sentence for a brief summary of the passage is provided below. Complete the summary by selecting the THREE answer choices that express the most important ideas in the passage. Some sentences do not belong in the summary because they express ideas that are not prese

42、nted in the passage or are minor ideas in the passage.Write your answer choices in the spaces where they belong. You can either write the letter of your answer choice or you can copy the sentence.Deer in the Puget Sound area eat a wide variety of foods and migrate seasonally to find food._Answer Cho

43、icesA. The balance of deer species in the Puget Sound region has changed over time, with the Columbian white-tailed deer now outnumbering other types of deer.B. Because Puget Sound deer migrate, it was and still remains difficult to determine accurately how many deer are living at any one time in th

44、e western United States.C. Deer populations naturally fluctuate, but early settlers in the Puget Sound environment caused an overall decline in the deer populations of the area at that time.D. Although it was believed that human settlement of the American West would cause the total number of deer to

45、 decrease permanently, the opposite has actually occurred for certain types of deer.E. In the long term, black-tailed deer in the Puget Sound area have benefitted from human activities through the elimination of their natural predators, and more and better food in deforested areas.F. Wildlife biolog

46、ists have long been concerned that the loss of forests may create nutritional deficiencies for deer.（分数：0.50）填空项 1:_Directions: Read the passage. Then answer the questions. Give yourself 20 minutes to complete this practice set.CAVE ART IN EUROPEThe earliest discovered traces of art are beads and ca

47、rvings, and then paintings, from sites dating back to the Upper Paleolithic period. We might expect that early artistic efforts would be crude, but the cave paintings of Spain and southern France show a marked degree of skill. So do the naturalistic paintings on slabs of stone excavated in southern

48、Africa. Some of those slabs appear to have been painted as much as 28,000 years ago, which suggests that painting in Africa is as old as painting in Europe. But painting may be even older than that. The early Australians may have painted on the walls of rock shelters and cliff faces at least 30,000

49、years ago, and maybe as much as 60,000 years ago.The researchers Peter Ucko and Andree Rosenfeld identified three principal locations of paintings in the caves of western Europe: (1) in obviously inhabited rock shelters and cave entrances; (2) in galleries immediately off the inhabited areas of caves; and (3) in the inner reaches of caves, whose difficulty of access has been interpreted by some as a sign that ma