Whn you go to work in th morning and find that traffic lights don＇t work, th traffic jam will crtainly happn. A patint nds to b opratd on at onc. What will happn if th opration cannot b mad bcaus of th lctricity. Without lctricity, w can nithr watch TV, listn to th tap, nor chat on lin. lctricity is closly rlatd to our daily lif. How trribl it would b if thr wr no lctricity!