伊卡莱姆的ScalersTalk第四轮新概念朗读持续力训练Day

练习材料：

Lesson42-3 Recording an earthquake

Why does a person standing in a bus or train tend to fall when a sudden start is made? It is because his feet move on , but his head stays still. A simple experiment will help us a little further. Tie a heavy weight at the end of a long piece of string. With the hand held high in the air,hold the string so that the weight nearly touches the ground. Now move the hand to and fro and around but not up and down. It will be found that the weight moves but slightly or not at all. Imagine a pen attached to the weight in such a way that its points rests upon a piece of paper on the floor. Imagine an earthquake shock shaking the floor, the paper, you and your hand. In the midst of all this movement, the weight and the pen would be still.

应用配置：L0+L4

知识笔记：experiment/    slightly/    shaking/

练习感悟：用时26分。晨读。今天在家里录制完成。