Lance Armstrong，a world-famous cyclist，was already a professional athlete at the age of 16，taking part in courses of long distance swims，bike rides and runs．
In his high school years，Lance decided to train cycling．Within a few years he was a member of the 1992 U．S．Olympic Team．Over the next years，he went on to win many cycling races worldwide．
In October 1996，shortly after competing（参加比赛） in his second Olympic Games，Lance was faced with the worst news．Medical tests showed that he had a cancer．Doctors told him that he only had a 40% chance to live．With two operations，Lance was not sure that he would ever ride a bicycle again．Luckily，the operations and treatments were greatly successful．In February 1997，the doctors announced（宣布） that Lance was a healthy man again．
Just five months after the treatments，Armstrong was back doing what he loved-cycling．He began a strict training timetable with hopes of a comeback．His goal was to compete in the 1999 Tour de France，which is thought to be the world's hardest bicycle race-a 23-day cycling
competition through the mountains and fields of France．
Lance went on to win the Tour de France for five years．This is thought to be the greatest achieve．

44．Lance is a according to the passage．
A．teacher
B．doctor
C．coach
D．sportsman
45．The right order of the following is ．
①Lance became healthy again after treatments．
②Lance competed in his second Olympic Games．
③Lance began a strict training timetable for Tour de France．
④Lance became a member of the 1992 U．S．Olympic Team．
A．④①②③
B．②③①④
C．④②①③
D．②①③④
46．From the passage，we know that Lance is a（n） man．
A．helpful
B．strong
C．honest
D．friendly
47．What can we learn from the passage？
A．Never give up．
B．Seeing is believing．
C．Love me，love my dog．
D．Practice makes perfect．