组合练五 Ⅰ.阅读理解 A (2021·石家庄市高中毕业班教学质量检测一) Aaron has performed in Germany, the Czech Republic and across the United States.His backflip (后空翻) earned him a place in Guinness World Records.Aaron doesn’t use a skateboard to do his tricks.He sticks a perfect four-wheeled landing with his wheelchair.That’s quite an accomplishment for a kid who was born with spina bifida, a birth defect (缺陷) that made him even unable to sit independently. One day, when he was eight, his friends encouraged him to roll down a shallow ramp (斜坡).It was a scary first ride.Aaron crashed his hands, but he was attracted by it.Six months later, after endless hard trying and training, he accomplished his first trick—lifting up one of the back wheels while crossing a barrier. “The more I rode, the better I became, though I have to admit that the process involved falling in every way possible,” says Aaron.When Aaron performed his first airborne 180° out of the box, Steve, his father, sensed an opportunity, videotaped the performance and sent it to the Internet.A letter soon arrived from John Box, founder of Colours’N Motion, encouraging Aaron to call him directly whenever he needed anything.Aaron has a sponsor since. With his mother helping with scheduling, he has had the opportunity to travel within the US as well as internationally.He has attended summer camps for disabled children as a coach.“I know that