The given pie chart clearly illustrates that the students use smartphones for reading can be divided into four purposes. More than half of the students use phones to learn knowledge, accounting for 59.5%.And 21. 3% of students use phones to spend the time. Meanwhile, 17% of students use mobile phones to obtain information. At least 2.2% of students use phones for other purposes.

This phenomenon can be attributed to several factors. First of all, with the rapid development of technology, there are abundant materials available online for people to learn from. so a large number of people choose to use their mobile phones to acquire knowledge.Furthermn, the phone has many apps that people can choose to spend free time. Moreovertheemergence of the Internet makes communication between people more convenient and fast. Therefore, people need to rely on phones to obtain information.

All in all, smartphones play an important role in our daily life, making it more diverse and colorful.