Alex turned his computer off and lay down on his bed．He grabbed the packet of chewing gum that was lying on the floor，popped （塞） one in his mouth and chewed it hard．

He was bored．Today was Saturday and Steve，his best friend，was working as the newspaper boy again．Alex turned round and noticed the new skateboard under his desk that he'd won at his last skate contest．He decided to ride it to the skate shop，because the kids there would buy it from him immediately．

He got up，grabbed his skateboard，opened the front door and rode away．He began to think of what he could buy with the money from selling the skateboard．He thought of the rock CDs．After a while he'd sell them to his friends，and with that money，he'd be able to buy skateboarding books．He'd sell those books back to Steve，and buy a few DVDs．Later he'd sell the DVDs to his elder brother's girlfriend!He could then get the ice-skating video，sell it to his small sister and…

He skated along，a smile on his face，thinking of all the good things when he noticed a small bench on the side of the street．He just wanted to do one little trick on the skateboard，before selling it．He decided to do a kickflip boardslide．He didn't land on the bench and fell off the skateboard，hitting his knee on the curb （路缘）．

He tried to get up：It hurt．He looked at the skateboard．It was broken in half…

根据短文内容，回答下列问题．

81．Why was Alex bored that Saturday？

　　

82．Did Alex want to play skateboard when he noticed it？

　　

83．Do you think if Alex likes rock music？Why？

　　

84．What happened when he did one trick on the skateboard？

　　

85．Could Alex's dream come true？Why？

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