【解析】
44．细节理解题，根据“On March 10, 2019, eight-year old Tani won the New York Chess Championship of his age group.2019年3月10日，8岁的塔尼夺得同龄纽约国际象棋锦标赛冠军。”可知应该是八岁的时候，故选B。
45．细节理解题，根据“Here the gifted boy was first introduced to chess by a teacher Makofsky, owner of a chess club.在这里，一位国际象棋俱乐部的老板马克夫斯基老师首次介绍这位天才男孩下棋。”，故选C。
46．细节理解题，根据“The boy practices the game for many hours a day on the floor with his board. Every Saturday, Tani goes to a free 3-hour class to improve his game skills.这个男孩每天在地板上用他的冲浪板练习这个游戏好几个小时。每个星期六，Tani都会去上一个免费的3小时的课程来提高他的游戏技能。”可知应该在介绍他自己是多么努力，故选A。
47．细节理解题，根据“Not surprisingly, Tani’s story, first reported by the New York Times, has brought him great support from the American public.不出所料，最先由“纽约时报”报道的Tani的故事为他带来了美国公众的巨大支持”，故选D。
48．词义猜测题，根据“Tani has also got offers from three famous private schools in New York.塔尼还收到了纽约三所著名私立学校的录取通知。”和“and chosen to continue Tani’s education at P. S. 116.并选择在第116公立学校继续塔尼的教育”，那么可以推知，应该是拒绝了，故选B。
49．细节理解题，根据“Winning the competition will bring the chess player closer to his dream of becoming the world’s youngest chess grandmaster赢得比赛将使这位棋手更接近成为世界上最年轻的国际象棋特级大师的梦想。”可知还没有开始比赛，实现他的梦想对Tani来说仍然是一个巨大的挑战，选项A错误，选项C正确；根据“The record has been kept for 17 years by the Russian chess player Karjakin, who won the title at the age of 12.这项纪录由俄罗斯棋手卡尔贾金保持了17年，他在12岁时就获得了冠军。”可知选项D错误。根据“But the family donates most of the money to the church and to those poor families.但这家人把大部分钱捐给了教堂和那些贫穷的家庭。”可知选项B错误，故选C。
