The Telephone

The telephone.

电话机。

Alexander Bell built a telephone in 1876. He had to learn a lot of science to do it.

亚历山大·贝尔在1876年制造出了电话机，为了做到这件事，他学习了大量科学知识。

Here are some telephones from long ago. Do these early phones look like your phone? Phones use electricity to send calls. Some calls are sent through wires. Some calls are sent through the air.

这里有一些很久以前的电话机。 这些早期的电话和你的电话长得像吗？ 电话依靠电力传输通话信号。 有些通话是通过电线传输的。 有些通话是通过空气传输的。

Using the phone is a great way to talk to friends and family. Who do you like to talk to on the phone?

打电话是和朋友、家人聊天的好方法。 你喜欢打电话和谁聊天呀？

Using a phone is a big help if there is trouble or danger. For example, if you saw someone get hurt, you or a grown up would dial 911.

如果遇到麻烦或是危险，打电话能帮上大忙。 比如说，如果你看到有人受伤了，你或是身边的大人可以拨打911。

The people who answer the phone at 911 will send help. Use your head. Tell them what the problem is. Do not hang up, because they need to find out where you are.

接听911电话的工作人员会派出救援。 你要动动脑筋，告诉他们具体出了什么问题。 不要挂断电话，因为他们需要确认你所在的位置。