三、完形填空。
Have you ever listened to music very loudly on buses or trains? Maybe 1
B
can even hear clearly what the singers are singing. The problem is that the music is coming out from your earphones(耳机)!
Doctors warn(警告)young people about the 2
C
of listening to music from earphones so loudly for a long time. In the United States, studies show that 3
A
people work at performance halls 30 minutes a day, they will have hearing problems. These people slowly lose their hearing and need to 4
B
the music even more loudly to hear it properly. As a result, the hearing problems become 5
D
.
As we know, the ear has 6
C
parts: the outer part, the middle ear and the inside ear. There are tiny(微小的)hairs 7
A
the inside ear. The tiny hairs get the sound waves(声波)and then change them into 8
D
the brain can understand. Listening to loud noise for a long time can 9
C
the tiny hairs and this causes hearing loss.
So next time you listen to music when 10
B
your earphones, make sure it is not loud enough for others to hear. Remember that once hearing loss sets in, there's no turning back.