A possible version:

With the rapid development of information technology and information industry, the number of mobile phones has increased dramatically, and now mobile phones have become a necessity for millions of people. But everything has two sides.

On the one hand, mobile phones contribute a lot to our daily life. First of all, mobile phones enable people to communicate with each other conveniently and quickly whenever and wherever they are. Secondly, it is the versatility of mobile phones that helps us get through those boring moments.

On the other hand, the shortcomings are undeniable. The biggest drawback is the unknown impact of excessive use on health. In addition, if people become too dependent on mobile phones, our face-to-face communication ability may decline.

From my point of view, any new invention has its shortcomings, but these negative factors do not always reduce its popularity. I strongly suggest that we use mobile phones moderately and appropriately to make them more beneficial.

Examination analysis: This article is a material composition. Before writing, you should examine the questions carefully. First, you should pay attention to the content requirements, write an article about the use of mobile phones, explain the advantages and disadvantages (two points each) that mobile phones bring to people's lives, put forward your own views on the use of mobile phones, and give reasonable suggestions. The number of words is 100- 120. This shows that it is an argumentative style, so we should use the simple present tense. There are three main points: 1. Advantages of mobile phones; 2. Shortcomings of mobile phones; 3. Personal opinions and suggestions. Pay attention to hierarchical division and sentence cohesion to improve the grade of composition. Pay attention to the number of words

Explain the highlights in the text. Use very good advanced words and phrases to add a lot of color to the article, such as being indispensable, contributing a lot, never being with you, declining, disadvantages and so on. At the same time, it also uses strong sentences; This leads to non-restrictive attributive clauses and so on. And pay attention to the level of the article and the cohesion of sentences, such as: on the one hand, on the other hand, moreover, but and so on.