大学英语六级64及答案解析.doc
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1、大学英语六级 64及答案解析(总分:448.01,做题时间:132 分钟)一、Part I Writing (3(总题数:1,分数:30.00)1.For this part, you are allowed thirty minutes to write a composition on the topic: Should We Read Extensively or Intensively? You should write at least 150 words, and base your composition on the outline given below: 1.大学生读书面临
2、两种选择:广泛阅读还是关注专业书籍的阅读? 2.我的读书方法 (分数:30.00)_二、Part II Reading C(总题数:1,分数:71.00)Origin of Vegetable and Animal Life in America When the new world was first discovered, it was found to be, like the old, full of plants and animals, and a great many tribes and nations of men lived there. Yet the plants an
3、d animals, if not the men, were all essentially different from those known in the old world. This was unexpected; it was thought to be quite remarkable. Then a question arose, what is the origin of these plants and animals and men? How could they come to a continent that is cut off apparently from a
4、ll intercourse (交流) and connection with the rest of the world? For the American continent is entirely separated from the old. The nearest approach to it is at BehringsStraits (白令海峡), on the north-west, where it is divided from the Asiatic continent by a channel about forty miles wide. Means of Commu
5、nication with the Old World Some animals and perhaps some plants, and most certainly men, may be supposed to have been transported across such a channel of water as this of Behrings Straits, either by boats made by the savages living on the coasts, or possibly by means of ice at some time when the w
6、hole channel was entirely frozen over. There is also at some distance south of Behrings Straits a remarkable chain of islands, called the Aleutian Islands (阿留申群岛), which extend in a regular and continuous line from the American to the Asiatic shore. These islands are volcanic. They contain now numer
7、ous volcanoes, some active and some dead. They bear no trees, but they produce a great variety of animals. They look, upon the map, like a row of stepping stones, placed on purpose to enable men and animals from the old world to make their way to the new. These islands are nearly all inhabited, and
8、the natives navigate (航海) the seas around them in boats made of a frame-work of wood or bone, covered externally with seal skins. It is perhaps possible to imagine also that a company of men might have been forced accidentally to sea in some large canoe from the coast of Africa, or on the other side
9、 from some of the islands of the Pacific, and landed upon the American shores. It is true that it would be exceedingly improbable that any such combination of circumstances would occur as could lead to such a result. The canoe or boat must have been very large, the stock of provisions very great. Th
10、e wind must not have been violent enough to engulf (吞没) the boat and must still have blown very long and very steadily to have carried a company of men so far before they all perished of hunger and thirst. All this would have been very improbable. Still it would be difficult to show that it could no
11、t occur. From the hundreds and perhaps thousands of boats full of savages that have been blown off to sea from the coasts of Africa, or from the South Sea Islands, it would be impossible to prove positively that there could never have been one that by any chance could have reached the American shore
12、s. There is still another mode by which we can imagine the animal and vegetable life of America to have been communicated to it from other regions, and that is, by supposing that there was in former ages some direct connection between the two continents by a tract of land which has since become subm
13、erged (淹没的). It is well known now that the crust of the earth is not in a stable condition. It is subject to changes and movements of various kinds, which are now going forward all the time, and have probably always been going forward. In some places the land is slowly rising; in others it is slowly
14、 subsiding (下沉). There are many places in the world where towns and cities which formerly stood high and dry on the land are now under water. The land has slowly subsided, so that the sea at the present time flows over it, and people passing in boats now look down and see the old foundations, and fr
15、agments of the fallen walls and columns, at the bottom. The Plants and Animals of America Generally New These and various other similar theories were devised in former times in endeavors to contrive some way of bringing plants and animals from other countries to America. But they have been generally
16、 considered unsatisfactory, since when people examined the plants and animals living here, they were found to be, as it seemed, essentially different from those found in other countries, so different that they could ever be descended from the same stock (祖先,血统), at least by ordinary generation. The
17、fauna (动物群) and the flora (植物) were both found to be in general essentially dissimilar. The flora is its system of plants. By the fauna of a country is meant the system of animals that inhabit it. With a moderate number of exceptions such as these, however, the plants and animals found in America pr
18、oved on examination to be entirely new. So, since both the fauna and the flora of America were so essentially different from those of the old world, it seemed to be wholly useless to attempt to design means by which the forefather (祖先) of the present races in America could have sailed across the oce
19、an, or could have migrated by means of countries and territories which once existed but are now submerged. (分数:71.00)(1).The plants and animals were all the same as those known in the old world.(分数:7.10)A.YB.NC.NG(2).The nearest approach to the new world is at Behrings Straits.(分数:7.10)A.YB.NC.NG(3)
20、.It is possible that man swam across Behrings Straits to the new world.(分数:7.10)A.YB.NC.NG(4).It is possible that a company of men might have sailed from the coast of Africa to the new world in some large canoe.(分数:7.10)A.YB.NC.NG(5).It is supposed that the animal and vegetable life of America migra
21、ted from Africa to America through some direct connections between the two continents by a tract of land which_.(分数:7.10)_(6).A flora is_ in a certain region.(分数:7.10)_(7).The author implies at the end of the text that all the theories mentioned in the former two parts are_ according to the new find
22、ings.(分数:7.10)_(8).There is also at some distance south of Behrings Straits a remarkable chain of islands, called_.(分数:7.10)_(9).There are many places in the world where_ are now under water.(分数:7.10)_(10).By the fauna of a country is meant_.(分数:7.10)_三、Listening Comprehens(总题数:1,分数:15.00)A.The Trea
23、d Hall is on the left of a 20-storey building.B.The Tread Hall is on the right of a 20-storey building.C.The Tread Hall is behind a 20-storey building.D.The Tread Hall is next to a 20-storey building.A.Because the temperature can climb to 85 Fahrenheit.B.Because the temperature can climb to 95 Fahre
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- 大学 英语六级 64 答案 解析 DOC
