单选题 A professor told students to go into the city slums (贫民窟) to study the life of 200 boys. He asked them to (41) reports (报告) about each boy's life and future. Most of the students wrote, "He doesn't have any hope. "
Twenty-five years (42) , another professor read the earlier reports. He told his students to (43) what happened to the boys. They tried very hard and found that 176 of the boys had become successful (44) doctors, teachers or scientists.
The professor was very (45) and decided to study it further. Luckily, all the men were living in the same city and he was able to visit and ask each one, "What made you (46) ?"
They all answered, "It was a good teacher. "
The teacher was (47) living there, so the professor found her and asked the old lady (48) she had pulled those boys out of the slum, and changed them into successful people. The teacher's (49) began to shine and said with a sweet smile, "It's really very easy. I (50) those boys. I'm proud of them. /

【正确答案】 B
【答案解析】[解析] 从It is also，perhaps，the gentlest及后面的but可知大象可能是最温柔的动物，但并非总是如此。
【正确答案】 A
【答案解析】[解析] 此题可用排除法将三个选项分别代入，可知只有live，活五六十年句意通顺。
【正确答案】 C
【答案解析】[解析] 从前文的They never forget great sadness or great happiness可知雌象死了以后其子女会伤心。
【正确答案】 A
【答案解析】[解析] 从前文的There will be a few young males—“baby boy”可知雄象长大就要离开。
【正确答案】 B
【答案解析】[解析] 从前文的Elephants five in families-families of females(母系家族)可知大象家族只有雌性聚在一起。
【正确答案】 C
【答案解析】[解析] 某人的一生all one's life。
【正确答案】 C
【答案解析】[解析] 根据句意“年老的象照顾年轻的象”，look after照顾、照料，此为固定搭配。
【正确答案】 B
【答案解析】[解析] 从上文The females stay together all their lives可知上面介绍了雌象，那么雄象的情况呢，用what提出问题。
【正确答案】 C
【答案解析】[解析] 从上文的A bull(雄性)elephant doesn't often have a friend可知因为雄象没有朋友，所以一个人生活。
【正确答案】 B
【答案解析】[解析] 从句子Sometimes the females call a bull可知雄象只能拜访雌象，拜访完毕就要离开。