A professor told his students to go into the city slums to s

A professor told his students to go into the city slums to study the life of …………………………
A professor told his students to go into the city slums(贫民窟) to study the life of 200 boys.He asked them to write reports(报告) about each boy’s future.Most of the students wrote,“He doesn’t have any hope.”
Twenty-five years later ,another professor read about the earlier reports.He told his students to report what had happened to the boys.They tried very hard and found that 176 of the boys had become successful men doctors,teachers and scientists.
The professor was very surprisedand decided to study it further.Luckily,all the men were living near the same city and he was able to visit and ask each one,“What made you successful ” They all answered,“There was a good teacher.”
The teacher was also living there,so the professor found her and asked the old lady how she had pulled those boys out of the slum,and changed them into successful people.The teacher’s face began to shine and said with a sweet smile,“It’s really very easy.I told those boys.“
（ ）81.why did the students go to the slims?
A.To help the poor children
B.To look for a good teather
C.To study the life of some young boys
D.To become successful people
（ ）下面还有题目,谁知道?上一题帮坐下
（2）Of the 200 boys how many were known to be not successful
4 20 24 176
（3）What changed the boys’ life？
The professor’s study
The teacher’s love
Their parents。
The slums。
（4）Why was the second professor surprised？
Because some boys had died
Because most of the boys lived a hard life
Because a few boys didn't have hope
Because there were too many successful students when they grown up
（5）Which of the following is NOT true？
Some of the boys become doctors。
The second professor talked to the 180 people and their teacher。
The teacher still remembered the boys。
The boys didn't want to talk about their teacher。