It's easy to take your hearing for granted until it's too late.

With the wide    1   _(popular) of digital entertainment products, it is not uncommon to see people wearing headphones and listening to music    2    running in the park or using public transport. And the volume is often so loud that people around    3    can hear the music as well.

However, doctors warn that such behavior can    4   _(potential) damage their hearing. "In noisy places, people tend   5  _(turn) the volume up to get the same clarity of sound. Unfortunately, that can damage the hearing   6  people being aware of it," said Feng Yongfeng, chief ENT physician at Beijing Tian'an Hospital.

After Spring Festival, the hospital witnessed   7   slight increase in the number of teenagers coming in with hearing problems,  8   Feng attributed to them wearing headphones at home for long periods during the holiday. Feng said both in-ear and overhead headphones can harm the ears and    9   (advise) against using them for long periods. He said if you do use headphones it is worth    10   (invest) in the highest quality you can afford.

Every country had its heroes. The heroes are the people that nation and especially the young peo­ple 21_____ . If you get a list of the 22   _____of a nation, it will tell you the potential (潜力）of the nation.

If today in America ’ you ask the high school students to list their heroes their 23____ would prob­ably divide into three groups. rHie first group of heroes would be the rock stars—the people 24 _____with rock music. There is no doubt that such people do have talent (天才）but one 25_____ if one should hold up rock stars as model. The rock stars too often are mixed with drugs and their personal life isnot all that — 26 ____  . The rock stars are rich and wear the latest fashion styles (时装）.However oneshould 27 _____more in a hero than such things as 28______ and fine clothes.

A second type of heroes for the American youth are sports stars. Again you have a person who has a great talent in one area_ 29 _____. However, too often the personal life of the sports star is a bit 30_____. Too frequently drugs and drinking are a part of 31_____ of the sports stars.

A third group of heroes are TV or movie stars. These people may have lots of 32___ ，tal­ent and are quite handsome. However ’ the personal life of too many actors is quite sad and should not be held up as a 33____  for young people.

Today，the rock stars，the sportsmen  and the actors 34____ have become the models of the youth in America. Really,do you hear a young person say that his 35____ is a doctor, a teacher or a scientist? These people are not 36____ and do not wear fashionable clothes. However, they are 37____ people who work hard to make the world a better place for everyone.

What is really sad is that the young try to 38____ their heroes. They like to wear the same clothes as theirs, if the heroes of today for the American youth are 39 ____only to rock stars, sportsmen and actors, the future does not look too 40_____ .

It's easy to take your hearing for granted until it's too late.
With the wide    1   _(popular) of digital entertainment products, it is not uncommon to see people wearing headphones and listening to music    2    running in the park or using public transport. And the volume is often so loud that people around    3    can hear the music as well.
However, doctors warn that such behavior can    4   _(potential) damage their hearing. "In noisy places, people tend   5  _(turn) the volume up to get the same clarity of sound. Unfortunately, that can damage the hearing   6  people being aware of it," said Feng Yongfeng, chief ENT physician at Beijing Tian'an Hospital.
After Spring Festival, the hospital witnessed   7   slight increase in the number of teenagers coming in with hearing problems,  8   Feng attributed to them wearing headphones at home for long periods during the holiday. Feng said both in-ear and overhead headphones can harm the ears and    9   (advise) against using them for long periods. He said if you do use headphones it is worth    10   (invest) in the highest quality you can afford.

– I met Jackson at our school theatre. Can you imagine_____ well-known _____ an expert on ENT?

Lee was faced with the    of whether or not to return to his country after he got the doctor's degree in America

A．situation     B．dilemma

C．environm ent     D．circumstance