听力原文：

Artificial Intelligence or AI has been used in many different fields to perform certain tasks, including education, heavy industry, toys and games. There are a number of companies that create robots to teach subjects to children. With the help of AI, Open Online Course allows students from around the world to take classes online. Though such tools have not become popular yet, robots have become common in many industries, and are often given jobs that are considered dangerous to humans. Repetitive jobs may lead to mistakes or accidents, while robots can be very helpful to avoid them. Companies like Mattel have been creating AI-enabled toys for young people, even for kids aged three. Those toys are able to understand conversations, give smart answers and learn quickly. AI has also been used in video games, for those that are designed to combat against you in the game.