语法填空
Recently I failed an exam. However, after I came out of my teacher's office, I told myself, “Smile! It's not so serious.”
I smiled a big smile and it worked a little, really.
Everyone gets frustrated sometimes. I used to be always influenced by ____ (press) and I ____ (be) often in low spirits. But one day I came ____ a sentence in the Bible. “Do not be anxious about tomorrow, for tomorrow will be anxious for itself, let the day's own trouble be sufficient for the day.” It suddenly struck me, “____ (worry) about a problem doesn't help. Why not just give a big smile and face up the trouble?”
Now every time I want to cry, I remind myself that laughter is better than ____ (tear) and anger. I____ (convince) that there's something magical about a smile. A smile helps me recover confidence and gives me the courage to move on.
Remember, whenever ____ (face) with a setback, whenever you've been treated ____ (unfair),____ it takes is determination and you can feel happy again. Smile at life,____ it will shine on you.
：在临终场0.1s的时候，运动员把球投出且准确命中，获得比赛的胜利.如果运动员投篮过程中对篮球做功为W，出手高度为h1，篮筐距地面高度为h2，球的质量为
，空气阻力不计，则篮球进筐时的动能为（ ）。