1. 用方框中所给单词的适当形式填空。

for, be, also, waterfall, enjoy, one, area, and, famous, lot

     Yellowstone National Park is the world's  national park. It is in the state of Wyoming, the USA. The  of Yellowstone National Park is about 9,000 km². There  lakes, canyons, rivers and mountains in it.

     Yellowstone National Park is famous  its wild (野生的) animals and its many geological phenomena (地理现象) , like hot springs, canyons and  . The  Yellowstone Lake is in the center of the park  it is the beginning of the Mississippi.

     Every year,  of people from all over the world go to Yellowstone National Park. They can  the wonderful geological phenomena. They can  go hiking, camping, boating, fishing and sightseeing there.