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Here I'd like to share one of my survival experiences with you．Last winter，we went skiing at Rocky Mountains．We had fun and enjoyed（61） ______ （we） during the daytime．However，when evening came，I got lost in a（62） ______ （violence） snowstorm．Before I knew it，I wandered off the path and lost touch with my family（63） ______ （total）．Thinking about all the survival tips I had learnt on TV shows，I tried not（64） ______ （panic）．I decided to stop moving around aimlessly and find shelter from freezing wind and snow first．Otherwise，my body temperature would get very low，（65） ______ could quickly kill me．I built a snow cave，（66） ______ （use） my skis．I gathered（67） ______ huge mass of snow and dug out a hole in the middle．Then I piled（68） ______ （branch） on myself，like a blanket，to stay as warm as I could．I ate snow and slept in my cave．The next morning，I went out to look for help，but（69） ______ vain．I had to return to my snow cave by following my tracks．After being stuck in the snow for three days，I finally（70） ______ （rescue） by a group of volunteer searchers．