1.A. 后面这句话是前面内容的原因，这从句子的意思上可以直接看出来。

15.A. read B. work C. teach D. slow

　题解与分析：

　这是一篇记叙文，文章讲述的是Ben由一个反应迟钝的孩子成长为一名出色的大学生的经历。

14.A. doctor B. child C. student D. teacher

13.A. learnt B. remembered

C. understood D. guessed

12.A. top B. end C. back D. behind

11.A. picture B. exercises C. shops D. reports

10.A. afraid B. surprised

　C. worried D. unhappy

9. A. whether B. when C. where D. why

8. A. found B. played C. knew D. threw

7. A. always B. even C. quickly D. never