听一段对话，回答第11－12小题。答题完毕，请等待“嘀”的信号，进入第一篇短文。
（）11. How long does Jack use his mobile phone every day?
A. For one hour. B. For two hours. C. For three hours.
（）12. What will Jack do next?
A. Talk with his dad patiently. B. Stop using his mobile phone.
C. Give his mobile phone to his dad.

听第一篇短文，回答第13－15小题。请根据短文内容，选择正确答案，完成信息记录表。答题完毕，请等待“嘀”的信号，进入下一篇短文。

()13. A. 3:30 B. 4:00 C. 4:30
()14. A. poor sleep B. family communication C. school bullying
()15. A. Grade 7 B. Grade 8 C. Grade 9

听第二篇短文，回答第16－20小题。
()16. What makes many teenagers stressed every day?
A. They have too many hobbies to deal with.
B. They can't get along well with their classmates.
C. They get bad exam scores and don't know how to improve.
()17. How long should teenagers sleep every day according to the passage?
A. At least eight hours. B. Less than seven hours. C. Over twelve hours.
()18. What should students do to make good study plans?
A. Only focus on weak subjects. B. Write down study tasks early.
C. Finish all schoolwork after exercise.
()19. What can cheer teenagers up when they feel stressed?
A. Doing more schoolwork. A. Comparing with top students.
C. Reading or listening to music.
()20. How many pieces of advice are mentioned in the passage?
A. 3. B. 4. C. 5.