1. 阅读短文，将下列句子填入短文中，使短文意思完整。有一个选项多余。

    Rock climbing(攀岩)did not become a sport until in the late 19^th century.  

While rock climbing may still be necessary for mountain climbing, most people just climb low mountains for fun.

    If you have ever done rock climbing, you will know that it is not a very easy sport.  What most people don't know is that rock climbing is one of the sports that depend on your body and mind(意志).

    To climb successfully, one must use wonderful skills.  Another important rule is that your arms only hold you close to the rock face while your legs are pushing you up. The closer you are to the rock face, the easier it is to climb.

 Once you start to learn how to climb, you'll find more fun. People who like games such as chess playing or problem—solving may love rock climbing, because they are nearly the same in the way of thinking.  Anyone who enjoys a difficult game and loves the outdoors should think of taking rock climbing as a new hobby.

A. One of the important rules is to always have three parts of your body on the rock face. B. Rock climbing has a really long history. C. But now it has become a popular outdoor activity. D. For anyone who wants to get into beautiful shape, rock climbing is a fun and good way. E. Rock climbing is a wonderful sport. F. Indoor and outdoor rock climbing both need practice.