American teenager Riley Horner was a student at school, but her life changed1June 11, 2019. She was hit in the head by accident.
The next morning, it was like the day before never happened. Riley woke up thinking it was2June 11. She had no memory (记忆)of what happened before or after. What was worse, her memory seemed to reset (重置) itself every3hours. It was like her brain stayed in the past and4 to make any new memories. Riley had to carry5with her so that she could know what she had forgotten when her two —hour clock went off . She seemed normal (正常的), 6she had nothing but a broken memory.
Over the next few months, Riley went to different hospitals and saw a lot of famous doctors. However, 7knew how to help Riley get back to her old life. Riley saw no hope. For her family, it was8future that troubled them most. If Riley's life didn't get back to normal, she probably couldn't make any friends, get a job or start her own family. She would be 16 forever.
Four months after the accident, the good news came. A hospital in Utah9what led to Riley' s memory loss (丢失). A small communication system in her brain broke down. It was small, but it could10great problems. For the first time, Riley felt 11. Riley took part in a two-week treatment there. Her12improved quickly after a few days. By the end of the treatment, she was able to remember almost 13 , and life returned to normal. Riley has always wanted to study14. Now her dream becomes15 —to study neuroscience (神经科学). She can help others like her.
