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1、请仔细阅读：本资料是理工类请仔细阅读：本资料是理工类完完型填空型填空 15 篇文章篇文章和阅读理解和阅读理解 50 篇篇文章的答案文章的答案，不管考，不管考 A 级还是级还是 B级，级，全都全都要记。考试会有一篇阅读要记。考试会有一篇阅读理解和一篇完型填空从这里出。理解和一篇完型填空从这里出。1、Captain Cook Arrow Legend It was a great legend while it lasted, but DNA testing has finally ended a two-century-old story of the Hawaiian arrow carved
2、 from the bone of British explorer Captain James Cook who died in the Sandwich Islands in 1779. There is no Cook in the Australian 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 mus
3、eum from continuing to display the arrow in its exhibition, Uncovered: Treasures of the Australian Museum,which does include a feather cape presented to Cook by Hawaiian King Kalaniopuu in 1778. Cook was one of Britains great explorers and is credited with discovering the Great South Land, now Austr
4、alia, in 1770. He was clubbed to death in the Sandwich Islands, now Hawaii. The legend of Cooks arrow began in 1824 when 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 fight with
5、islanders. In the 1890s the arrow was given to the Australian Museum and the legend continued until it came face- 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 likely made of animal bone, said Philp. However,
6、 Cooks fans refuse to give up hope that one Cook legend will prove true and that part of his remains will still be uncovered, as they say there is evidence not all of Cooks body was buried at sea in 1779. On this occasion technology has won, said Cliff Thornton, president of the Captain Cook Society
7、, in a statement from Britain. But I am sure that one of these days.one of the Cook legends will prove to be true and it will happen one day. 2、Avalanche and Its SafetyAn avalanche is a sudden and rapid flow of snow, often mixed with air and water, down a mountainside. Avalanches are among the bigge
8、st dangers in the mountains for both life and property.All avalanches are caused by an over burden of material, typically snowpack, that is too massive and unstable for the slope that supports it. Determining the critical load, the amount of over-burden which is likely to cause an avalanche,is a com
9、plex task involving the evaluation of a number of factors.Terrain slopes flatter than 25 degrees or steeper than 60 degrees typically have a low risk of avalanche. Snow does not gather significantly on steep slopes; also, snow does not flow easily on fiat slopes. Human-triggered avalanches have the
10、greatest incidence when the snows angle of rest is between 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 flat enough to hold snow but steep enough to ski has the potential to generate an a
11、valanche,regardless of the angle. Additionally, avalanche risk increases with 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
12、 is a continuous process, including route selection and examination to the snowpack,weather conditions, and human factors. Several well-known good habits can also reduce the risk. If local authorities issue avalanche risk reports, they should be considered and all warnings should be paid attention t
13、o. Never follow in 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 missing or damaged. Avoid traveling below others who might trigger an avalanche. 3、Germ
14、s on Banknotes People in different countries use different types of money yuan in China, pesos in Mexico, pounds in the United Kingdom, dollars in the United States, Australia and New Zealand. They may use different currencies, but these countries, and probably all countries, still have one thing in
15、 common: Germs on the banknotes. Scientists have been studying the germs on money for well over 100 years. At the turn of the 20th century, some researchers began to suspect that germs living on money could spread disease. Most studies of germy money have looked at the germs on the currency within o
16、ne country. In a new study, Frank Vriesekoop and other researchers compared the germ populations found on bills of different countries Vriesekoop is a microbiologist at the University of Ballarat in Australia. He led the study, which compared the germ populations found on money 6 from 10 nations. The scientists studied 1,280 banknotes in total; all came fr
