根据短文内容及所给首字母提示写出所缺单词，并将完整单词写在答题卡对应题号的横线上。
Do you enjoy climbing mountains? I’d like to tell you a true story about John and Peter. They were b 46 _ mountaineers(登山者). As John was experienced, he was always asking Peter to copy his example. “Would you like to stand on the t 47___ of the world, Peter?” “Of course. It has already b 48 my dream,” Peter answered.
On a sunny morning, the two men started for the top of Mount Qomolangma. After they climbed over one of the most d 49 slopes(斜坡), they found a man lying in the snow. “He’s going to d 50 ,” Peter looked at John and said, as if he would help the man. “ Leave him by himself and just follow me! But if you bring the burden(累赘)with you, I’m a 51__ you will lose your life.” John warned Peter. Then he turned around and walked forward a 52___. It was too cold. After thinking for a w 53___, Peter made up his mind to help the dying man. He carried the man on his back and made his way forward. Little by little, Peter’s temperature made the man w _54 . The man came to himself! And soon he could move all by himself. Together they moved side by side.
About two hours later, they kept up with John. To their surprise, they found that John was
almost d 55_ in the snow. He had been frozen to death.
