Mr.Smith used to be in prison for three____(year),which may make you think he is not a good man.But____fact, he is kind-hearted as well as honest.The reason why he was put into prison was not that he____(he) broke the law, but that his six-year-old son blew up the bridge near his home,imitating（模仿）what he had seen on TV.Although this little boy____(break) the law,he was so young that he couldn't be put in prison.According to the local law,the boy's parents could not avoid____(punish).

    As____result, Mr. Smith received the punishment. He was arrested and finally was taken to the police station. Most of the people in the town showed pity on him,but it was____(complete) useless.After all,everybody is to obey the law____(make) by the government.Unluckily,what made us____(amaze) was that Mrs.Smith was out of work before long.However, they have lived a happy life ever since.Misfortunes（不幸）tell us____fortune is.

按照题目要求作图：

（1）在检修电路时，我们经常使用测电笔．如图所示是测电笔结构示意图，其中还缺少一个元件，请你在图中把它画出来，并标出该元件的名称．

（2）将如图（b）所示电水壶的3条接线按照安全用电的原则对应连接到插头上

425分____

2元零5分____

5元4角2分____

声波能绕过某一建筑物传播，这是因为（     ）