Unit 3 Electricity我的能量来自于食物。My energy comes from food.我的能量来自于电。My energy comes from electricity.把电能转换成不同种类的能量change electricity into different kinds of energy热能heat energy动能moving energy光能light energy声能sound energy仆人servant一包糖果a packet of sweets她甚至不知道什么是电。She doesn’t even know what electricity is.她认为她可以把它装在袋子里买回来,就像买糖果一样。She thinks that she can buy it in packets, like sw..