Alaska range is famous for its valleys and glaciers (冰川)。 It has
many t___1____ forests and big glaciers which are over millions of years old . It
a___2_____ more tnan a million tourists from all over the world .It is also one of the most
d____3____ places on the earth . Of all the p___4____ ,Mount McKinley is the highest . it’s one of the most popular
places to go for mountain c____5____ . It’s very difficult to climb Mount McKinley
because the t___6____ of the mountain is
covered by thick snow aii year round ,and there are many other difficulties like the f____7____ weather c_____8____ , avalanches (雪崩), the heavy storms and so on .
For these climbers it is an extremely dangerous climb ---i__9____ ., many people have l___10___ their lives on this mountain .
However , the mountain climbers have never
given up climbing it , and they enjoy the great challenges in climbing the mountain .