【例1】
　　 Dyslexia
　　 As many as 20% of all children in the United States suffer from some form of the learning disorder called dyslexia.
　　Experts on dyslexia say that the problem is not disease. They say that persons with dyslexia use information in a different way. One of the world's great thinkers and scientists, Albert Einstein was dyslexic. Einstein said that he never thought in words the way that most people do. He said that he thought in pictures instead. The American inventor Thomas Edison was also dyslexic. Dyslexia first was recognized in Europe and the United States more than 80 year ago. Many years passed before doctors discovered that persons with the disorder were not mentally slow or disabled. The doctors found that the brains of persons with dyslexia are different. In most people, the left side of the brain