5. 根据下面所给题目写出一篇不少于80词的短文。写作题目：On mobile phones参考范文： With the rapid progress of science and technology, cell phones are becoming increasingly popular. It is generally accepted that cell phones play a vital role in people’s daily life. The advantages of cell phones are as follows. To start with, as a wireless mobile phone, it’s convenient for the user to contact someone whenever and wherever. Secondly, it’s a helpful companion. With a multifunctional cell phone in hand, one can easily surf the net, downloading what he needs. However, the disadvantages of cell phones are not to be ignored. For one thing, the machine itself is expensive. For another, the radiation from mobile phones might do harm to the user’s health. In my opinion, with its expenses being reduced sharply after China’s entry into WTO, there will be a bright future ahead. Therefore the advantages of cell phones outweigh their disadvantages.

A. 错误

B. 正确