求一段描述海伦凯特品质的英文短文~要求400字左右~

To many people, Helen Adams Keller is a symbol of courage and ray of hope. After being shut off from the world at eighteen months old, this child fought a slow and difficult battle to become a sensitive, ambitious and intelligent woman. She devoted her whole life to write, speak and labored endlessly for the less fortunate.

Helen Keller was born in Tuscumbia, Alabama on June 27, 1880. When she was nineteen months old, her life changed dramatically. She fell ill suddenly and the doctors did not expect her to live. Miraculously, the fever subsided but Helen’s illness had taken away her sight and hearing.

Helen grew up to be a very difficult child, terrorizing her family with her bad behaviors and temper tantrums. Looking after her has became too much of a challenge for them.

However, the situation changed on 3 March 1887. It was the day when Annie Adams Sullivan, a 21 year-old graduate, from the Perkins School for the Blind, was engaged to become her g