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1、第一篇 Captain Cook Arrow Legend库克船长箭传说It was a great legend while it lasted，but DNA testing has (1) finally ended a two-century-old story of the Hawaiian arrow carved from the bone of British explorer Captain James Cook(2) who died in the Sandwich Islandsin 1779.“There is (3) no Cook in the Australian
2、 Museum，museum collection manager Jude Philip said not long ago in announcing the DNA evidence that the arrow was not made of CookS bone.But that will not stop the museum from continuing to display the arrow in its(4) exhibition ，“Uncovered：Treasures of the Australian Museum,” which(5) does include
3、a feather cape presented to Cook by Hawaiian King Kalaniopuu in 1778. Cook was one of Britains great explorers and is credited with(6) discovering the“Great South Land，(7) now Australia, in 1 770.He was clubbed to death in the Sandwich Islands，now HawaiiThe 1egend of Cooks arrow began in 1824 (8) wh
4、en Hawaiian King Kamehameha on his deathbed gave the arrow to William Adams，a London surgeon and relative of Cooks wife，saying it was made of Cooks bone after the fatal(9) fight with islanders. In the 1890s the arrow was given to the Australian Museum and the legend continued (10) until it came face
5、=to-face with science. DNA testing by laboratories in Australia and New Zealand revealed the arrow was not made of Cooks bone but was more (11) likely made of animal bone。said Philp. However, Cooks fans (12) refuse to give up hope that one Cook legend will prove true and that part of his remains wil
6、l still be uncovered.as they say there is evidence not a11 of Cooks body was (13) buried at sea in 1 779.“On this occasion technology has won，”said Cliff Thornton，president of the Captain Cook Society, in a (14) statement from Britain.“But I am (15) surethat one of these daysone of the Cook legends
7、will prove to be true and it will happen one day.第二篇 Avalanche and Its Safety雪崩和它的安全 An avalanche is a sudden and rapid flow of snow, often mixed with air and water, down a mountainside. Avalanches are (1) among the biggest dangers in the mountains for both life and property. All avalanches are caus
8、ed by an over-burden of material, typically snowpack, that is too massive and unstable for the slope (2) that supports it. Determining the critical load, the amount of over-burden which is (3)likely to cause an avalanche, (4) is a complex task involving the evaluation of a number of factors. Terrain
9、 slopes flatter than 25 degrees or steeper than 60 degrees typically have a low (5)risk of avalanche. Snow does not (6)gather significantly on steep slopes; also, snow does not (7)flow easily on flat slopes. Human-triggered avalanches have the greatest incidence when the snows angle of rest is (8)be
10、tween 35 and 45 degrees; the critical angle, the angle at which the human incidence of avalanches is greatest, is 38 degrees. The rule of thumb is: A slope that is (9) flat enough to hold snow but steep enough to ski has the potential to generate an avalanche, regardless of the angle. Additionally,
11、avalanche risk increases with (10) use ; that is, the more a slope is disturbed by skiers, the more likely it is that an avalanche will occur. Due to the complexity of the subject, winter travelling in the backcountry is never 100% safe. Good avalanche safety is a continuous (11) process , including
12、 route selection and examination of the snowpack, weather (12) conditions , and human factors. Several well-known good habits can also(13) reduce the risk. If local authorities issue avalanche risk reports, they should be considered and all warnings should be paid (14) attention to. Never follow in
13、the tracks of others without your own evaluations; snow conditions are almost certain to have changed since they were made. Observe the terrain and note obvious avalanche paths where plants are （15）missing or damaged. Avoid traveling below others who might trigger an avalanche. 第三篇Giant Structures 巨
14、型建筑It is an impossible task to select the most amazing wonders of the modem world since every year more _wonderful_ constructions appear. Here are three giant structures which are worthy of our _admiration_ although they may have been surpassed by some more recent wonders.The Petronas Twin TowersThe
15、 Petronas Towers were the tallest buildings in the world when they were completed in 1999. With a _height_ of 452 metres, the tall twin towers, like two thin pencils, dominate the city of Kuala Lumpur. At the 41st floor, the towers are linked by a bridge, symbolizing a gateway to the city. The Ameri
16、can _architect_ Cesar Pelli designed the skyscrapers.Constructed of high-strength concrete, the building provides around 1，800 square metres of office space _on_ every floor. And it has a shopping centre and a concert hall at the base. Other _features_ of this impressive building include double-decker lifts, and glass and steel sunshades.The MiUau BridgeThe Millau Bridge was opened in 2004 in the Tam Valley，in southern F
