There was a small village near a mountain. People there loved their village very much and they grew many ____ on the mountain. Water in the rivers was very clear and the  ____was clean. People lived a poor life, but they were very ____ . After a few years, some people in the village started to cut down trees to ____ for money. There were some people from cities ____ to visit the village. People began to kill some wild animals as ____ to treat (招待) the visitors. Of course, they made lots of money. But____ knew what the village would be like in the future.

    As time went on, there were fewer plants and animals and the water became ____ . The visitors became fewer and fewer. Several years later, people there knew they must stop destroying (破坏)____. They would like to live a happy life as before, so they began to____ new plants. They hoped the village would become as beautiful as before.