四、閱讀測驗【請依照段落上下文意，選出最適當的答案】第一篇：       Every year, Sherpa climbing guides help hundreds of mountaineers up Mount Everest (聖母峰), the highestmountain in the world. And in most years Sherpas are among those who die in the process. No one knows forcertain how many dead bodies lie on the slopes of Mount Everest, buried in the ice and the snow. In all, over 300mountaineers have died attempting to reach the summit, the majority of them Nepalese porters and Sherpa guides.Because of the harsh conditions, their bodies are often left unrecovered where they fall. Two of the worst yearsever for fatalities were 2014, when 16 Sherpas died on the Khumbu Icefall, and 2015 when a massive avalancheengulfed the South Base Camp, killing at least 20, mostly Sherpas.       Working as a climbing guide on Everest is one of the riskiest jobs. In addition to avalanches and falls whileclimbing, there are the risks of falling ice, collapsing crevasses, altitude sickness, frostbite, retinal hemorrhages,blizzards and winds powerful enough to blow you off the mountain. The riskiest place of all is above an altitudeof 8,000 meters, the so-called death zone, where oxygen levels and atmospheric pressure are too low to sustainhuman life for any length of time. Every year, it seems, Everest is the scene of some horror stories. If it’s notavalanches or falls from the mountain, it’s fights between rival Sherpas, or overcrowding on the slopes. Over theyears Everest has been climbed well over 8,000 times. The extreme weather makes the window of opportunity forsummiting very small (in some years, just a few weeks during May). No wonder there have been reports ofcongestion so thick that climbers are sometimes forced to pick a path through the corpses of their fallen colleagues.The greatest problem of all, according to a professional Sherpa climbing guide, is that too many foreignmountaineers lack sufficient experience and training. “They think it’s easy. But Everest is never easy. It is very,very dangerous.” He says some mountaineers become so obsessed by glory that they ignore the safety warnings oftheir Sherpa guides and press on to the summit without them.
【題組】41. What is the passage mainly about?
(A) The most dangerous jobs in the world
(B) Sherpa guides and the risks of climbing Mount Everest
(C) Glory seeking and the high risks involved in the process
(D) Why reaching the summit of Mount Everest is important