题目

My nephew’s 10-year-old son came for a visit one hot, July weekend. I persuaded him to ____ inside and joined him in a game. After ____ for an hour, I suggested that we relax for a while. I ____ my favorite chair to let my neck relax. He left the room and I was catching a few enjoyable ____ of peace.“Look, Alice,” he said excitedly as he ____ over to the chair where I was sitting. “I found a kite. Could we go outside and ____ it?” Looking out of a nearby window, I noticed it was ____ outside. “I’m sorry. Tripper,” I said, sad to see his ____ expression. “The wind is not ____ 导体虽容易导电，却同时对电流有    作用，把这种作用称为    用字母    表示，在电路图中的符号是    ．它是导体本身的一种属性，其大小决定于导体的    ，    ，    ，有时还和    有关．