阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式,并将答案填写在答题卡上。
Climbing Mount Everest was once a feat(壮举) reserved for only the bravest mountaineers.These days even inexperienced or elderly climbers try to get to the top of the world.
Twenty years ago, climbers in their 60s 【小题1】 (have) just a one-in-eight chance of getting to Everest's summit(峰顶), but now the odds are closer to one in three.
The fortunes of first-time Everest climbers have improved because 【小题2】the rise of the commercial climbing business.In 【小题3】 1990s, experienced guides began leading groups of new climbers.Today more than 24 companies offer the service.Everest enthusiasts with little climbing experience can pay tens of thousands of dollars to have their hands 【小题4】 (hold) most of the way up.
Better weather forecasting has helped, too.Travelling from the base camp to the top of the mountain 【小题5】 (take) around four days, and success depends 【小题6】(heavy) on weather conditions along the way.Spotting a suitable “window” of good climbing weather was difficult thirty years ago.With the 【小题7】 (develop) of technology, forecasting has vastly improved.
On May 23nd, 396 climbers attempted 【小题8】 (reach) the summit in one day.The result was a long queue along a ridge(山脊)in the “death zone” near the top,【小题9】 might have contributed to the death of some of the eleven climbers.
It still pays to treat the 【小题10】 (world) highest peak with the most respect.