10. A) It affects the quality of sleep.

　　B) It shortens the time of sleep.

　　C) It hurts people’s appetite.

　　D) It threatens to people’s hearts.

　　11. A) It might not be practical when people have outdoor activities.

　　B) It will not work well on some brands of phones or tablets.

　　C) It may not be effective in ensuring a good night’s sleep.

　　D) It could not have been designed in a short period of time.

　　Passage Two

　　Questions 12 to 15 are based on the passage you have just heard.

　　12. A) Because they have to use their phones in many life situations.

　　B) Because they are crazy about new technological inventions.

　　C) Because they can gain much information from the Internet.

　　D) Because they have little chance to interact with others in real life.

　　13. A) Frequent use of medicine.

　　B) Obsessive use of social media.

　　C) Long emotional depression.

　　D) Serious hurt of the brain.

　　14. A) They use phones to view entertainment media a lot.

　　B) They have their phones since their early childhood.

　　C) They spend about four hours a day on their phones.

　　D) They tend to be glued to phones even in classrooms.

　　15. A) Developing more apps to help users deal with various situations.

　　B) Guiding parents to talk seriously with their child over phone use.

　　C) Helping phone users to cut down on the use of their phones.

　　D) Suing other phone manufacturers for copying their products.

　　Section C

　　Directions: In this section, you will hear three recordings of lectures or talks followed by three or four questions. The recordings will be played only once. After you hear a question, you must choose the best answer from the four choices marked A), B), C) and D). Then mark the corresponding letter on Answer Sheet 1 with a single line through the centre.