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A I fell in love with Yosemite National Park the first time I saw it, when I was 13. My parents took us there for camping. On the way out, I asked them to wait while I ran up to El Capitan, a __16__ rock of 3,300 feet straight up. I touched that giant rock and knew __17__ I wanted to climb it. That has been my life's passion (钟爱) ever since — __18__ the rocks and mountains of Yosemite. I've long made Yosemite my __19__. About 15 years ago I started seeing a lot of __20__， like toilet paper, beer cans, and empty boxes, around the area. It's __21__ me why visitors started respecting the place __22__ and treated such a beautiful homelike place this way. I tried __23__ trash (垃圾) myself, but the job was too big. I would __24__ an hour or two on the job, only to find the area trashed all over again weeks later. Finally, I got so __25__ it that I decided something had to change. As a rockclimbing guide, I knew __26__ about organizing any big event. But in 2004，together with some climbers, I set a date for a __27__. On that day，more than 300 people __28__. Over three days we collected about 6,000 pounds of trash. It was amazing how much we were able to __29__. I couldn't believe the __30__ we made—the park looked clean! Each year volunteers come for the cleanup from everywhere. In 2007 alone, 2,945 people picked up 42,330 pounds of trash and __31__ 132 miles of roadway. | 
