关于”手机的发明“的英语作文范文5篇，作文题目：The invention of the mobile phone。以下是关于手机的发明的xx年级英语范文，每篇作文均为真题范文带翻译。
高分英语作文1：The invention of the mobile phone
Mobile Phone Invention
Mobile phone also known as cellular phone is a portable electronic device that allows for wireless communication through voice and text messages. It was first invented in 1973 by Martin Cooper an engineer at Motorola.
The first mobile phone known as the DynaTAC 8000X took ten years to develop and weighed almost one kilogram. It was very expensive and could only be afforded by the wealthy.
Today mobile phones have evolved into much smaller and more affordable devices that come with various features like internet connectivity video calls and cameras. They have become an essential part of our daily lives allowing us to communicate with people who are far away and access information instantly.
The invention of the mobile phone has revolutionized the way we communicate work and live. It has brought people closer together improved efficiency in the workplace and made information more accessible than ever before.
This concept mobile phone appeared as early as the last century, when Bell Laboratories, the largest communication company in the United States, began to try out the first so-called mobile phone in Bell laboratory. In April, Martin Cooper, a famous engineer and technician of Motorola Company in the United States, invented the world's first mobile phone. When Cooper plays with the world's first mobile phone, he can use any one In fact, the first generation of og mobile phones rely on different frequencies to distinguish different mobile phones of different users.
The GSM system of the second generation mobile phones is very small. Users can distinguish today's differences. The frequency resources are obviously insufficient, and the mobile phone users are also growing exponentially.
Therefore, different CDMA technology machines emerge as the times require through different code updates. The application of this technology not only improves the efficiency of the system, but also increases the number of users It improves the quality and confidentiality of mobile phone calls, and reduces the radiation. Now it can be regarded as "green mobile phone".
In addition to the mobile phone with mobile phone function, it also provides users with sufficient screen size and bandwidth for easy carrying. At the same time, it also provides a broader stage for software and content services. Many value-added services can be carried out, such as stock, news, weather, etc Transportation, merchandise, APP download, music and picture download, etc.
I think the most important modern invention is the Internet. With the Internet, we can do a lot of things. For example, we can shop online, learn knowledge, listen to music and watch movies.
The Internet makes the world smaller. We can meet and talk with our relatives and friends from afar. Without spending a lot of money, we can publish our blog on the Internet.
Friends can visit me by visiting me Our website to know what we are doing, such as zuowendidaijoozone, the Internet makes our life more exciting and relaxed.