Mount Everest, mountain peak in the Himalayas of southern Asia, considered the highest mountain in the world. Mount Everest is situated at the edge of the Tibetan Plateau (Qing Zang Gaoyuan), on the border of Nepal and the Tibet Autonomous Region of China. 。
Mount Everest was known as Peak XV until 1856, when it was named for Sir George Everest, the surveyor general of India from 1830 to 1843. The naming coincided with an official announcement of the mountain's height, taken as the average of six separate measurements made by the Great Trigonometrical Survey in 1850. Most Nepali people refer to the mountain as Sagarmatha, meaning “Forehead in the Sky.” Speakers of Tibetan languages, including the Sherpa people of northern Nepal, refer to the mountain as Chomolungma, Tibetan for “Goddess Mother of the World.”
The height of Mount Everest has been determined to be 8,850 m (29,035 ft). The mountain’s actual height, and the claim that Everest is the highest mountain in the world, have long been disputed. But scientific surveys completed in the early 1990s continued to support evidence that Everest is the highest mountain in the world. In fact, the mountain is rising a few millimeters each year due to geological forces. Global Positioning System (GPS) has been installed on Mount Everest for the purpose of detecting slight rates of geological uplift. 。
Mount Everest, like the rest of the Himalayas, rose from the floor of the ancient Tethys Sea. The range was created when the Eurasian continental plate collided with the Indian subcontinental plate about 30 to 50 million years ago. Eventually the marine limestone was forced upward to become the characteristic yellow band on the top of Mount Everest. Beneath the shallow marine rock lies the highly metamorphosed black gneiss (foliated, or layered, rock) of Precambrian time, a remnant of the original continental plates that collided and forced up the Himalayas. 。
Mount Everest is covered with huge glaciers that descend from the main peak and its nearby satellite peaks. The mountain itself is a pyramid-shaped horn, sculpted by the erosive power of the glacial ice into three massive faces and three major ridges, which soar to the summit from the north, south, and west and separate the glaciers. From the south side of the mountain, in a clockwise direction, the main glaciers are the Khumbu glacier, which flows northeast before turning southwest; the West Rongbuk glacier in the northwest; the Rongbuk glacier in the north; the East Rongbuk glacier in the northeast; and the Kangshung glacier in the east. 。
The climate of Mount Everest is naturally extreme. In January, the coldest month, the summit temperature averages -36° C (-33° F) and can drop as low as -60° C (-76° F). In July, the warmest month, the average summit temperature is -19° C (-2° F). At no time of the year does the temperature on the summit rise above freezing. In winter and spring the prevailing westerly wind blows against the peak and around the summit. Moisture-laden air rises from the south slopes of the Himalayas and condenses into a white, pennant-shaped cloud pointing east; this “flag cloud” sometimes enables climbers to predict storms. When the wind reaches 80 km/h (50 mph), the flag cloud is at a right angle to the peak. When the wind is weaker, the cloud tilts up; when it is stronger, the flag tilts down. 。
From June through September the mountain is in the grip of the Indian monsoon, during which wind and precipitation blow in from the Indian Ocean. Masses of clouds and violent snowstorms are common during this time. From November to February, in the dead of winter, the global southwest-flowing jet stream moves in from the north, beating the summit with winds of hurricane force that may reach more than 285 km/h (177 mph). Even during the pre- and post-monsoon climbing seasons, strong winds may arise suddenly. When such storms develop, sand and small stones carried aloft, as well as beating snow and ice, pose problems for climbers. 。
Precipitation falls mostly during the monsoon season, while winter storms between December and March account for the rest. Unexpected storms, however, can drop up to 3 m (10 ft) of snow on unsuspecting climbers and mountain hikers. 。
Base Camp, which serves as a resting area and base of operations for climbers organizing their attempts for the summit, is located on the Khumbu glacier at an elevation of 5,400 m (17,600 ft); it receives an average of 450 mm (18 in) of precipitation a year. 。
Traditionally, the people who live near Mount Everest have revered the mountains of the Himalayas and imagined them as the homes of the gods. Because the peaks were considered sacred, no local people scaled them before the early 1900s. However, when foreign expeditions brought tourist dollars and Western ideas to the area, people of the Sherpa ethnic group began to serve as high-altitude porters for them. Because Nepal had been closed to foreigners since the early 1800s, all pre-World War II (1939-1945) Everest expeditions were forced to recruit Sherpa porters from Dārjiling (Darjeeling), India, then circle through Tibet and approach Everest from the north. 。
In 1913 British explorer John Noel sneaked into Tibet, which was also closed at the time, and made a preliminary survey of the mountain’s northern approaches, where the topography is less varied than on the southern side. In 1921 the British began a major exploration of the north side of the mountain, led by George Leigh Mallory. Mallory’s expedition, and another that took place soon afterward, were unable to overcome strong winds, avalanches, and other hazards to reach the summit. In 1924 a third British expedition resulted in the disappearance of Mallory and a climbing companion only 240 m (800 ft) from the summit. More attempts were made throughout the 1930s and into the 1940s. Then, with the conquest of Tibet by China in the early 1950s, the region was closed to foreigners again and the northern approaches to the mountain were sealed off. 。
In 1950, the year after Nepal opened to foreigners, W. H. Tilman and C. Houston made the first ascent from the south and became the first people to see into the Khumbu cirque (a steep basin at the head of a mountain valley). A number of attempts to reach the mountain’s summit followed in the early 1950s. In 1952 the Swiss almost succeeded in climbing the mountain from the South Col, which is a major pass between the Everest and Lhotse peaks and is now the most popular climbing route to the summit. On May 29, 1953, under the tenth British expedition flag and the leadership of John Hunt, Edmund Hillary of New Zealand and Sherpa Tenzing Norgay of Nepal successfully completed the first ascent of Mount Everest via the South Col. Several expeditions have since followed. In 1975 Junko Tabei of Japan became the first woman to summit Mount Everest. Later, in 1978, Austrians Reinhold Messner and Peter Habeler established a new and rigorous standard by climbing to the summit without the use of supplemental oxygen, which, because of the thin air at Everest’s high altitude, is important for the energy, health, and thinking skills of the climbers. In 1991 Sherpas, who had carried the supplies for so many foreigners up Mount Everest, completed their own successful expedition to the summit. By the mid-1990s, 4,000 people had attempted to climb Everest—660 of them successfully reached the summit and more than 140 of them died trying. 。
The difficulties of climbing Mount Everest are legendary. Massive snow and ice avalanches are a constant threat to all expeditions. The avalanches thunder off the peaks repeatedly, sometimes burying valleys, glaciers, and climbing routes. Camps are chosen to avoid known avalanche paths, and climbers who make ascents through avalanche terrain try to cross at times when the weather is most appropriate. Hurricane-force winds are a well-known hazard on Everest, and many people have been endangered or killed when their tents collapsed or were ripped to shreds by the gales. Hypothermia, the dramatic loss of body heat, is also a major and debilitating problem in this region of high winds and low temperatures. 。
Tenzing Norgay on the Summit of Everest 。
Tenzing Norgay on the Summit of Everest 。
This photograph, taken by Edmund Hillary, shows Tenzing Norgay on the summit of Mount Everest. The two men became the first people to scale the summit of the mountain, the highest in the world, on May 29, 1953. 。
Encarta Encyclopedia 。
Archive Photos 。
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Another hazard facing Everest climbers is the famous Khumbu icefall, which is located not far above Base Camp and is caused by the rapid movement of the Khumbu glacier over the steep rock underneath. The movement breaks the ice into sérac (large, pointed masses of ice) cliffs and columns separated by huge crevasses, and causes repeated icefalls across the route between Base Camp and Camp I. Many people have died in this area. Exposed crevasses may be easy to avoid, but those buried under snow can form treacherous snow bridges through which unwary climbers can fall. 。
The standard climb of Mount Everest from the south side ascends the Khumbu glacier to Base Camp at 5,400 m (17,600 ft). Typical expeditions use four camps above Base Camp; these camps give the climbers an opportunity to rest and acclimate (adapt) to the high altitude. The route from Base Camp through the great Khumbu icefall up to Camp I at 5,900 m (19,500 ft) is difficult and dangerous; it usually takes one to three weeks to establish because supplies must be carried up the mountain in several separate trips. Once Camp II, at 6,500 m (21,300 ft), has been supplied in the same manner using both Base Camp and Camp I as bases, climbers typically break down Base Camp and make the trek from there to Camp II in one continuous effort. Once acclimatized, the climbers can make the move to Camp II in five to six hours. Camp III is then established near the cirque of the Khumbu glacier at 7,300 m (24,000 ft). The route up the cirque headwall from Camp III to the South Col and Camp IV at 7,900 m (26,000 ft) is highly strenuous and takes about four to eight hours. The South Col is a cold, windy, and desolate place of rocks, snow slabs, littered empty oxygen bottles, and other trash. 。
Deadly Day on Mount Everest 。
Deadly Day on Mount Everest 。
In May 1996 a chain of amateur climbers and professional guides wait their turn to ascend the Hillary Step, a rock face, 12-m (40-ft) tall, (center) just 30 m (100 ft) below the summit of Mount Everest. This photograph was taken by guide Scott Fischer on what became one of the deadliest days ever on Mount Everest. Fischer and several other climbers perished just hours later when a sudden, severe storm trapped several climbing parties high on the mountain. In all, 12 climbers died. Some survivors and other observers believe that the tragedy was due in part to crowded summit conditions—there were simply too many climbers, especially less-experienced climbers, trying to summit Mount Everest at the same time. 。
Encarta Encyclopedia 。
Scott Fischer/Woodfin Camp and Associates, Inc. 。
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From the South Col to the summit is a climb of only 900 vertical m (3,000 vertical ft), although its fierce exposure to adverse weather and steep drop-offs poses many challenges. The section between 8,530 m (28,000 ft) and the South Summit at 8,750 m (28,700 ft) is particularly treacherous because of the steepness and unstable snow. From the South Summit there remains another 90 vertical m (300 vertical ft) along a terrifying knife-edged ridge. The exposure is extreme, with the possibility of huge vertical drops into Tibet on the right and down the southwest face on the left. A little more than 30 vertical m (100 vertical ft) from the summit is a 12-m (40-ft) chimney across a rock cliff known as the Hillary Step; this is one of the greatest technical challenges of the climb. 。
As the popularity of climbing Everest has increased in recent years, so have safety problems. To pay the high climbing permit fee charged by the Nepalese government, many experienced climbers have recruited wealthy, amateur climbers as teammates. The combination of inexperience, crowded summit conditions (more than 30 have been known to summit the peak on the same day), and extreme weather conditions has led to a number of tragedies in which clients and competent guides alike have died attempting the climb. 。
The large number of trekkers and climbers who visit Nepal and the Everest region contribute to the local economy but also cause serious environmental impact. Such impact includes the burning of wood for fuel, pollution in the form of human waste and trash, and abandoned climbing gear. Although some climbing gear is recycled by local residents either for their own use or for resale, it is estimated that more than 50 tons of plastic, glass, and metal were dumped between 1953 and the mid-1990s in what has been called “the world’s highest junkyard.” Up on the ice, where few local people go, the norm is to throw trash into the many crevasses, where it is ground up and consumed by the action of the ice. A few bits and pieces show up on the lower part of the glacier many years later as they are churned back to the surface, although organic matter is generally consumed or scavenged by local wildlife. At the high-elevation camps, used oxygen bottles are strewn everywhere. 。
Efforts have been made to reduce the negative environmental impact on Mount Everest. The Nepalese government has been using a portion of climbing fees to clean up the area. In 1976, with aid from Sir Edmund Hillary’s Himalayan Trust and the Nepalese government, the Sagarmatha National Park was established to preserve the remaining soil and forest around Mount Everest. By the mid-1990s the park comprised 1,240 sq km (480 sq mi). Trekking and climbing groups must bring their own fuel to the park (usually butane and kerosene), and the cutting of wood is now prohibited. Because the freedoms of Sherpas have been restricted by the park rules, they have not been sympathetic to the existence of the park. Additionally, the Sagarmatha Pollution Control, funded by the World Wildlife Fund and the Himalayan Trust, was established in 1991 to help preserve Everest’s environment. Climbing activity continues to increase, however, and the environmental future of the Mount Everest area remains uncertain.。
参考资料:摘自 microsoft student 2007。
1:沉默 作用是使对方单位无法使用魔法。
2:黑暗箭 把由黑暗游侠杀死的单位(有尸体)变成一个骷髅(强烈推崇!!!!!)
3:吸血 吸取所选单位的血补充到自己身上。
4:媚惑 控制一个5级以下的单位(没什么用的,大家不要浪费魔法值在上面了)
战术进行步骤:
1、开局:
开局都以建立远程攻击部队的开局来开,比如orc,建造顺序是4p采金,1p建bm、造2个p,等第6个p出来了就造bb,从采金的4个p中抽一个出来造bo,跟着造n个p采木,等兵营出来后造猎头者,然后ba、bo的造;如果是人类的话就先造bs、等第6个p出来了就造bb,从采金的4个p中抽一个出来造bf,跟着造n个p采木,等兵营出来后造火枪手,然后bf、ba的造;ne就是出弓箭手,ud就出蜘蛛;
2、初期的mf:
等第一个远程兵出来了让他去探路,第二个出来了去另外的方向探路,探到对方的基地后把远程兵种拉去旅店召唤黑暗游侠做第一英雄,这个时候家里可以做个商店(ne就不用做了,帮助不大啊,ud一定要做,可以买召唤骷髅),黑暗游侠这个时候应该带着两个或三个远程兵去mf),技能选择黑暗箭(要选自动释放哦),然后就去mf基地旁最弱小的那堆野外生物——注意控制你的黑暗游侠(一般我是黑暗游侠1队,远程兵2队),让他站在队伍的最前面首先攻击,然后集中火力攻击血最少的野外生物,大家在mf时应该按住alt,这样可以看到单位的血量,当被攻击的野外生物差不多要挂了,远程兵(2队)攻击其他的野外生物,留下黑暗游侠继续攻击,这样当野外生物倒下的时候你就会获得一个攻击13-17,防御重甲1的骷髅兵,重复以上的打法,当你mf完这批瘦小的野外生物时你就应该有两到3个骷髅兵了,身后应该有4个远程兵,同时家里继续生产远程兵。
这时应该是第一天黑夜另加1/4的时间。
3、初期战术的设定与被骚扰和rush时的应对。
由于初期已经有了近身与远程的兵力配合,现在你的选择可以有三个方向,经济的发展(开分基地)、rush与继续mf并升级科技,无论你选择哪个,你现在都有足够的本钱去进行,而且得到三个骷髅你所消耗的的魔法值等于是0(消耗太少了……感动ing),你可以在英雄二级时有更多的魔法值去施展别的魔法,如果这时对方来rush你,你也不用慌,走回去和他打就行了,农民可以不用出来配合,用你的全部力量来kill对方的低血的单位,每当他倒下一个,你就多一个骷髅兵了(郁闷啊,tft中没否定买,骷髅兵在初期凶),如果对方是ud的话他更郁闷,倒下的都变你的骷髅了,他就是有骷髅卷轴也无处可用,你只要微超好你的部队就行了(当ud发现被orc或hm或ne用骷髅兵来压着他打时他多郁闷啊……^o^);要是你的对手没来rush你和骚扰你,你就可以用上面的三个方向来来进行你的发展或战斗。
4、二级时与第二英雄英雄的搭配和出魔法兵种的运用。
与第二英雄的搭配主要是看你的战术方向,如果你是打算对对方英雄进行压制的话,在二级时orc你应该出(技能选变动物),黑暗游侠的沉默加上巫师的变形绝对能让对方的英雄瘫痪,要是人类你就选山丘之王吧,ud选恐怖领主或lich,ne选kog或老虎妹或审判官,总之在对方英雄用不了魔法的情况下你想怎么打都行了;
如果你选择了兵力压制打法,推崇第二英雄出兽王(技能选熊),由兄加上骷髅兵在前面吸引火力,后面的远程兵与黑暗游侠齐射对方血少的单位,当你黑暗游侠的黑暗箭有2级的时候,不用什么抄做都能出骷髅兵的。