[解析]
1.A.细节理解题.结合Xue Minxiu, born in 1937和 In 2014, she was accepted by Tianjin University and finally her dream came true可知2014年入学,1937年出生,故2014﹣1937=77,可知是77岁入学,故选A.
2.B.细节理解题.结合would either solve them by herself or ask teachers for help可知遇见问题自己解决或找老师,故选B.
3.B.标题判断题,结合Xue Minxiu, born in 1937, graduated with excellent grades after working hard for 4years.本文是介绍一位努力的大龄毕业生,故选B.
3.B.推理判断题.结合Xue Minxiu, born in 1937, graduated with excellent grades after working hard for 4years.本文是介绍一位努力的大龄毕业生,这应该出自报纸,故选B.