下边漫画启示我们,在生活中,我们应该(　　)

下图中箭头表示人口移动状况，读图回答下列各题。

磁感强度是0.8T的匀强磁场中，有一根跟磁感线垂直、长0.2m的直导线，以4m/s的速度、在跟磁感线和直导线都垂直的方向上做切割磁感线的运动，则导线中产生的感应电动势的大小等于____V。

阅读理解

    Mr. Smith made many tests with different animals. They found that the monkey was the cleverest of all the animals. One day Mr. Smith put a monkey in a room. He also put some small boxes in it. In one of the boxes there was some food. “How long will it take the monkey to find the food?” Mr. Smith said to himself. “Let me wait and see.” He left the room and waited outside. Three minutes later, he put his eye to the keyhole (猫眼). What did he see? He saw the eye of the monkey. The monkey was on the other side of the door and looked at Mr. Smith through the keyhole.

材料一：（英国拥有）很大的、不断扩大的市场…英国还拥有更多的、可供工业革命使用的流动资本，源源流入英国的商业利润比流入其他任何国家的都多…由于行会较早瓦解，由于对传统的条块农田的圈占，英国获得了充裕的流动劳动力…贫穷的农民们失去了自己的部分甚至全部的土地，被迫当租地人或打散工的人，否则就不得不去城里找工作．  ﹣﹣斯塔夫里阿诺斯《全球通史》

材料二：

材料三：《17世纪以来主要科学成果情况表》