It was normal for high school students to feel bored at home during the summer vacation because summer vacation was a very rare break time. Most people would pursue some hobbies or do some meaningful activities during this time. Here are some suggestions that might be helpful: 1. Try writing a novel or script: Both novels and scripts are good ways to stimulate imagination and creativity, as well as improve writing skills. He could try to write some simple stories or scripts or try to create his own novel. 2 Try to learn new skills: Learning new skills can make people feel fulfilled and have a sense of accomplishment. They could learn skills that interested them, such as painting, photography, programming, and so on. 3. Play with friends: Playing with friends can make people feel happy and relaxed. You can try some outdoor activities such as swimming, basketball, biking, etc. You can also watch movies and play games with friends. 4 Try to travel: Traveling can make people feel different ways of life and experiences. You can try to go to some cities or countries that you are interested in to explore the local culture and history or try some interesting outdoor activities. Try doing some housework: housework can make people feel responsible and accomplished. She could try to do some housework that she was interested in, such as cooking, cleaning, tidying the closet, and so on. The most important thing was to find something that interested him and try to put it into practice. Summer vacation is a great time to try new things and discover your interests. I hope these suggestions can help you spend a meaningful summer vacation.