1 . Joe Simpson and Simon Yates were the first people to climb the West Face of the Siula Grande in the Andes mountains. They reached the top _________，but on their way back conditions were very _________. Joe fell and broke his leg. They both knew that if Simon _________alone，he would probably get back ___________. But Simon decided to risk his_________and try to lower Joe down the mountain on a rope.

As they_______down，the weather got worse. Then another _______occurred. They couldn't see or hear each other and，_________，Simon lowered his friend over the edge of a precipice（峭壁）. It was_________ for Joe to climb back or for Simon to pull him up. Joe's __________ was pulling Simon slowly towards the precipice. __________，after more than an hour in the dark and the icy cold，Simon had to __________. In tears，he cut the rope. Joe ________ into a huge crevasse（裂缝） in the ice below. He had no food or water and he was in terrible pain. He couldn't walk，but he ____________to get out of the crevasse and started to __________ towards their camp，nearly ten kilometers __________.

Simon had ____________the camp at the foot of the mountain. He thought that Joe must be __________，but he didn't want to leave __________. Three days later，in the middle of the night，he heard Joe's voice. He couldn't __________ it. Joe was there，a few meters from their tent，still alive.