Chongyang Festival  (celebrate) on the ninth day of the ninth month on the traditional Chinese calendar, and it is also known as Double Ninth Festival.

In Chinese culture, the number nine is thought to be yang. The ninth day of the ninth month is a double yang day and "double" (mean) Chong in Chinese, so it got the name Chongyang Festival. The ninth month also heralds（预示）the coming of winter, so it is a time when the living need warm clothes, and some people make the festival a time for  (provide) special clothes for their ancestors（祖先）.

During the festival, people usually  (climb) mountains, wear the zhuyu plant, drink chrysanthemum (菊花) wine, and eat Chongyang cake. Cake in Chinese is pronounced "gao" meaning high, so people consider climbing a high mountain to be the same as eating cake. Also, people think they  (do) better than before after eating the cake.

Double Ninth Festival is also Seniors' Day— a day to care for the elder people and to let them  (enjoy) themselves. On the day, many communities organize retired people to go out  (climb) mountains.

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I went to Grand Canyon (大峡谷) National Park in July 2012 for the first time and I knew I wanted to work there as a park ranger（管理员）. Park rangers protect the park's animals, plants, land, buildings, and people.

Now, as a park ranger for Grand Canyon National Park, I share the science, history and beauty of this park with thousands of visitors from around the world.

National parks are like outdoor museums. Park rangers have all kinds of jobs, depending on where they work and what they studied during college. I teach school field trips（实地考察）, work at visitor centers and help people stay safe during their visit.

My favorite part of my job is showing children their first look at the Grand Canyon during school field trips. Children are often amazed at the canyon's size and colors. Sometimes, they think it looks like a painting.

Being a park ranger requires a lot of energy. I walk several miles and talk with hundreds of people each day. Park rangers must enjoy working with people and speaking in front of groups. Nearly 5 million people visit Grand Canyon National Park every year.

Park rangers must also be prepared for any situation. Recently, I broke a traffic jam(堵塞). It was caused by a huge elk（麋鹿）standing in the road. Elks can become dangerous when they get scared, so I asked visitors to stop their cars and take pictures from far away. Believe it or not, I also help protect people from monkeys. It is not allowed to feed animals in national parks. But sometimes, visitors try to feed monkeys.