Directions:In this section, you will hear 3 short
passages. At the end of each passage, you will hear some questions. Both the
passage and the questions will be spoken only once. After you hear a question,
you must choose the best answer from the four choices marked A, B, C and D.
A. It may make the wearer feel tired.
B. It will gradually weaken the eyes of adults.
C. It can lead to the loss of vision in children.
D. It can permanently change the eye structure.