爱华网同时还有经典的例题哦！
【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 — the part that controls language — is larger than the right side. In persons with dyslexia, the right side of the brain is bigger. Doctors are not sure what causes this difference. However, research has shown that dyslexia is more common in males that in females, and it is found more often in persons who are left-handed. No one knows the cause of dyslexia, but some scientists believe that it may result from chemical changes in a baby's body long before it is born. They are trying to find ways to teach persons with dyslexia. Dyslexic persons think differently and need special kinds of teaching help. After they have solved their problems with language, they often show themselves to be especially intelligent or creative.
1. One out of five American children suffers from dyslexia.
A. Right B. Wrong C. Not mentioned来
2. Many great thinkers and scientists in the world are dyslexic.
A. Right B. Wrong C. Not mentioned
3. The first cases of dyslexia in Europe were discovered less than a century ago.
A. Right B. Wrong C. Not mentioned
4. The left side of the brain in a dyslexic person is bigger than the right side.
A. Right B. Wrong C. Not mentioned
5. Generally speaking, dyslexia is more common in left-handed males that in right-handed females.
A. Right B. Wrong C. Not mentioned
6. It is believed that dyslexia is related to the bad habits of a baby's mother.
A. Right B. Wrong C. Not mentioned
7. Dyslexic people often turn out to be intelligent or creative once they have learned to handle language properly.
A. Right B. Wrong C. Not mentioned
答案及详解：
1．题目中的关键词是one out of five和American children. 根据顺序出题的特点，我们很快在原文第一段中找到答案，其中one out of是20%的同义改写，American children是all children in the United States的同义改写，因此该题的答案为A. Right。
2．题目中的关键词great thinkers and scientists. 我们在第二段中找到答案所在句。但是通过对比我们发现，原文中的限制词是one of，而题目中却是many。再仔细阅读文中发现，文中仅提到爱因斯坦和爱迪生为读写困难症的患者，并未讲述除爱因斯坦和爱迪生以外的思想家和科学家的情况，因此该题的答案为C. Not Mentioned。
3．题目中的关键词是专有名词Europe，我们很快在第二段第五行找到答案所在句。通过对比题目和答案所在句，我们发现从recognize → discover, more than 80 years ago → less than a century ago都属于同义改写，但惟一有差别的是文中提到的两个地方：Europe和the United States在80多年前发现了读写困难症病例，但题目中仅仅提到了Europe。对于这个问题，我们可以进行如下推理：设A = Europe，B = the United States，实际上这道题就变为这样一道推理题：如果A + B正确，那么A是否正确？实际上很简单：A + B成立（正确）的充分必要条件是正确，即A正确或者B正确。经过这样的推理，我们知道该题的答案应为A. Right。
4．题目中的关键词是bigger，我们很快在第二段第九行找到答案所在句。该句题目属反义表达，所以该题选B. Wrong。
5．题目中的关键词是more common。答案所在句在第二段第十句。对答案所在句必须进行逻辑分析，我们才能得出正确结论。设A = males，B = females，C = left-handed，D = right-handed。根据答案所在句前半句我们知道：A > B，根据后半句我们知道，C > D，于是我们进行如下推导：即以上可知，该题答案为A. Right。
