3. A. learned　　　　　　　　　　　　 B. learning

C. had been learned 　　　　 D. were learned

2. A. schooling　　　 B. school　　　　 C. schools　　　 D. home

1. A. teaches　 B. teaching　　 C. taught　　　　 D. teach

14. A。由于狗是给一个盲人占座位，乘客并不生气，更多的是惊讶，所以他们都笑了，故15选B。

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　 Miss Richards was a teacher at a school for boys and girls. She 　__1 chemistry and physics from the lowest to the highest classes in the 　__2　 . Sometimes the new classes 　3　 　rapidly, but sometimes they were very 　4　 , and then Miss Richards had to 　5　 　things many times.

One year, the first class had been studying chemistry for several 　__6_ when Miss Richards suddenly asked, "What is water? Who knows? 　7__　 　up?"

There was silence (沉默) for a few seconds, and Miss Richards felt sad (难过), but then one boy 　8　 　his hand.

"Yes, Dick?" said Miss Richards encouragingly (鼓励地). He was not one of the brightest children in the class, so she was 　9　 　that he could answer.

　　　 "Water is a liquid which has no 　10　 　until you wash your hands in it, Miss. Then it turns black," the boy replied with great confidence (信心).

13. C。这里比喻狗就像小孩一样，睡觉时把头搁在主人的腿上。

12. C。狗的位子就在主人的旁边。

11. B。狗和主人各占一个位子，故选two。

10.D。因为狗喜欢用鼻子嗅，人都怕，这样狗就占到了地方。

9. C。用little修饰不可数名词room。

8. D。离开座位可表达成“leave one’s seat”。