题目

I never planned to be a teacher. I was headed for a law school, for a real career. Teaching was something to “get out of my system”. I would teach a couple of years and then go to get a real job. After the first couple of years, I promised myself I would leave if I didn’t love my job any more. Twenty-nine years later, that day still has not come.So, why do I stay? I stay because I laugh and learn every day. The children are funny, insightful, and honest. If my shoes don’t match my outfit, they tell me. If my argument that Invisible Man is an important twentieth century classics doesn小明家搞装修，为了美观，想把所有电线都埋藏在墙壁里（俗称走暗线）．小明在查阅有关资料时了解到：埋藏在墙壁里的电线，要整条铺设，不能在墙壁里中途接驳．（1）请你运用相关知识解释其道理：由于接驳处导线电阻________（填“增大”或“减小”），电流在该处产生的热量较________（填“多”或“少”），存在安全隐患；（2）如图1是小明房间的照明灯泡的电路，小明同学为了安装一个插座给书桌上的台灯供电，方便晚上学习，他把家中控制电灯的开关拆下后引出两条导线，然后接上插座，如图2，试说明他这样做会有什么现象发生？（3）请你在图中画出安装一个插座改接后的电路简图．