Do you like listening to music? Do you often turn up the music when you're using earphones? If so, your hearing may have been damaged . The World Health Organization (WHO) is worried that 1.1 billion children and young people are damaging their hearing by listening to loud music. Nearly half the young people in developed countries may lose their hearing because of the "unsafe use" of music players, including smartphones. Loud music in nightclubs, parties and at sports also make it worse. The WHO advises young people to listen to music for just one hour a day. Dr. Etienne Krug told BBC: "What we're trying to do is to draw people's attention to a problem that is not talked about enough." He said it's easy to solve this problem. Dr. Krug said keeping the music down and limiting the listening time to less than one hour a day would save a lot of people's hearing. However, he also said, "Even an hour can be too much if the music is too loud." Ralph Holme, a researcher, explained how loud noise can damage ears. He said: "Loud sounds damage your hearing by killing off thousands of little hair cells in the inner ear. The cells can tell different sounds through vibration . But they are very _ --they get damaged easily and even die if they vibrate too much because of loud sounds for too long." He warned: "The bigger problem is they don't grow back and the ear can no longer get sound." No one wants to lose their hearing! Therefore, next time when you listen to music, make sure it's not too loud and only listen for less than an hour. You can enjoy your music much better in this way. From the passage we can learn that _ . A) keeping the music down would save young people's hearing B) the damaged cells can grow back and the ear can get sound C) young people lose their hearing because of going to the nightclubs D) the problem of young people's hearing damage is talked about enough
A

Tom is five years old . He has no brothers or sisters . He is a lovely boy . He doesn't go to school because he is too young . He likes to play with other children in the small park every day . The park is near his building . In the park there are interesting things to see and play with . Tom's parents love him very much . They often buy him nice things . This time , his mother buys some new clothes for him . The clothes are expensive and nice . Tom is very happy to wear them . "Mum , can I go out and play with my friends ? I want them to see my new clothes ," asks Tom . "All right , but please keep your clothes clean ," says Mum. "I am going to do some cooking . We will have supper after your father comes back ." At about six , his father comes back from work . And Tom goes home for supper. "Why do you have much earth on your clothes ?" asks his mother . "Because I have some falls , " answers Tom . "You should not make the nice clothes dirty " Mother says . " I'm sorry , Mum " says Tom , "But I have no time to take off my clothes when I fall ." Tom _ . A) is six years old B) is a student C) is five years old D) has a brother and a sister
C

Which color do you like best? Everyone has his own favorite color, but how do people feel about colors? It depends on their cultures. The same color sometimes has different meanings in different countries. In England, the right color for a bride to wear is white. But in China and other eastern countries, brides often wear red. Why? It is because the red color is a sign of good luck. Red is used as a sign of danger in England. Road signs are often in red. In eastern countries, red does not mean you have to be careful. In England and other western countries, black is the color of death. But in many eastern countries, most people think white is the color of death. In England, green is used in traffic lights to tell people that it is safe to go. Green is often seen as a lucky color, but wearing green at a wedding is unlucky. Many people like the color orange because it is bright and exciting. But some _ will not use orange in their ads because they believe it suggests that their products are cheap and perhaps not of high quality. As is known to all, red is the most popular color in China while in England it is blue. In many eastern countries, most people think _ is the color of death. A) black B) green C) white D) yellow
C