Title: Exploring the Beauty of National Parks As a traveler, I have always been fascinated by the beauty and diversity of national parks around the world. One of my favorite national parks is Yellowstone National Park in the United States. Yellowstone is known for its geothermal features, including Old Faithful Geyser, which erupts every 90 minutes. Yellowstone National Park also has some amazing wildlife to observe. Visitors can see a wide variety of animals, including grizzly bears, bison, elk, wolves, and various species of birds. In conclusion, I believe that national parks are not just beautiful places to visit, but they are also significant repositories of natural heritage.

旅游宰客现象，是当前旅游业发展中的一大问题。 首先，宰客现象的存在，无疑是对消费者权益的一种侵犯。 其次，宰客现象的存在，也对旅游业的发展产生了负面影响。 那么，针对旅游宰客现象，我们应该怎样去看待这个问题呢？ 我认为，旅游宰客现象的存在，是因为部分旅行社和导游人员缺乏职业道德和法律意识的结果。 因此，为了改变旅游宰客现象，我认为应该从以下几个方面进行： 1. 加强对旅行社和导游人员的职业道德教育和法律法规培训的工作力度； 2. 建立健全旅行社和导游人员的职业道德行为记录系统，加大对违反职业道德行为的处罚力度； 3. 建立健全旅游业服务质量标准体系、旅行社业务规范体系等，加强对旅游市场的监管力度。