一天，小鹰、小鸭、小鹿在河边发现了一箱水果，它们决定把这箱水果拖到动物俱乐部去。小鹰想从天上飞过去，就用力往天上拉；小鸭想从水里游到目的地，就往水里拉；小鹿则想走大路，就往路上拉。结果是水果箱一动也不动。这启示我们，要实现集体的目标，就要做到（     ）

某同学在做“用滑动变阻器改变电流”的实验时，连接如图所示的电路，将滑动变阻器的滑片移动到最大阻值处，闭合电键S，发现小灯不亮。接下来的操作，在以下步骤中最合理的是

    Everybody needs water. Everything needs water. We use water to wash the bowls(碗), clothes and ourselves. We use water to plant trees, flowers and crops(庄稼). Where does all water come from? It comes from clouds.

    Some of rain goes into the ground. Many people get it under the ground. Some rain water goes into the hills. It runs into lakes and rivers. Many people get it there.