新东方新概念英语第三册网课老师推荐

新概念英语第四册课文原文：记录地震

801. The ideal to be aimed at was to devise an instrument that could record with a pen on paper, the movements of the ground or of the table as the quake passed by.

理想的目标是设计出这样一种仪器：当地震发生时，它能用笔在纸上记录下大地和桌子运动情况。

802. While I write my pen moves, but the paper keeps still.

我写字时，笔是移动的，纸是静止的。

803. With practice, no doubt, I could in time learn to write by holding the pen still while the paper moved.

毫无疑问，经过练习，我最终能够学会笔不动而纸动来写字。

804. That sounds a silly suggestion,

这听起来似乎是一种愚蠢的想法，

805. but that was precisely the idea adopted in some of the early instruments (seismometers) for recording earthquake waves.

但是早期记录地震波的仪器(地震仪)正是采用了这中思路。

806. But when table, penholder and paper are all moving, how is it possible to write legibly?

可是，当桌子、夹笔装置、纸都在移动时，怎么能书写得清楚呢?

807. The key to a solution of that problem lay in an everyday observation.

可以从我们的日常生活观察中找到这个问题的答案。

808. Why does a person standing in a bus or train tend to fall when a sudden start is made?

一个人站在公共汽车或火车上，当车突然开动时，他为什么会倾倒呢?

809. It is because his feet move on, but his head stays still.

这是因为他的脚动了，而他的头保持着静止。

810. A simple experiment will help us a little further.

再做一个简单的实验可以帮助我们进一步理解这个问题。