(2016•黑龙江哈尔滨)16. Nowadays, we don’t have enough resources to use.，it's everyone's duty to save them for the future. To save resources, we should _______.

  ①throw away a pencil without completely using it

  ②collect waste things for recycling

  ③go to school by bike instead of by car

  ④turn off the tap while brushing our teeth

  ⑤keep the light son day and night

   A. ①②⑤    B.②③④     C.②④⑤

16.B考查句意理解。句意：当今，我们没有足够的能源，因此为了未来节约能源是每个人的责任，为了节约能源，我们应该___________。①扔掉一支没有完全用完的铅笔。②收集废弃的东西再利用。③骑自行车上学而不是乘小汽车。④刷牙时关掉水龙头。⑤日夜亮灯。由常识可知②③④是节约能源的行为。故选B项。