组合练九 Ⅰ.阅读理解 A (2021·南京市、盐城市高三二模) When I was six, my elder brother brought me to the local BMX(自行车越野)track to ride in a kids’ race for the first time.The hill out of the starting gate looked so scary and steep that I backed off.My parents took me back for another try the next week.I fell almost immediately but still managed to win the second place.I’ve loved racing ever since. I turned pro at 15,which isn’t possible now: You have to be 17 to compete professionally.Around the time I went pro, BMX became an Olympic sport and I decided to pursue it after high school.I’m the youngest woman with a professional title in the United States. BMX isn’t judged on tricks or how you handle barriers, but it’s an extreme sport.It’s like horse racing mixed with riding a roller coaster.It starts with a huge burst of speed—I go 40 mph by the time I’m two and a half seconds out of the gate.Then I try to come out in front of seven competitors at the end of the track, which includes 40-foot jumps.I keep chasing the high that comes from prestart nervousness, big jumps, and the feeling of crossing the finish line first. Strength and balance are key in competition, so I work out at least five days a week to prepare.I do tons of resistance and agility(灵活) training,both on and off the bike.I also do mental drills with a sports psychologist to make sure I’m focused and confident going into compet