题目

单项式的系数是_________． 答案：【答案】【解析】试题解析: 单项式的系数是 故答案为：　　Small children often laugh at(嘲笑) a lame(瘸子) or a blind person, or at someone who isn't dressed as well as they are. But as they grow up, they learn not to hurt people's feelings by laughing at their problems. They learn to laugh at other things. Most important, they learn to laugh at themselves. 　　Suppose (假设) you're playing a game. You make a mistake and lose. Do you become angry? Or can you laugh at yourself and hope to do better next time? 　　Suppose you're at a special dinner. You spill (溢出) some food. Why keep worrying? Why not laugh it off and enjoy yourself anyway? If you can, it's a good sign you have grown up. (1)This passage is about______. [　　] A．why laughter is good for your body B．what you should laugh at C．when babies learn to laugh D．where you may laugh (2)The writer says small children laugh at people who______. [　　] A．have problems B．spill food C．dress well D．play games (3)The writer shows how laughter could help you not to_______. [　　] A．make a mistake B．lose a game C．become angry D．try again (4)Next the writer shows how laughter could keep you from______. [　　] A．spilling food B．worrying C．enjoying yourself D．growing up (5)If you find a new skill (技能) hard to learn, you should______. [　　] A．laugh at your own slowness B．keep trying until you learn it C．give up and never try again D．both A and B