Question

 Have you ever listened to music very loudly on trains or buses? Maybe 1 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 of listening to music from earphones so loudly for a long time. In the United States,studies show that 3 people work at performance halls 30 minutes a day,they will have hearing problems. These people slowly lose their hearing and need to 4 the music even more loudly to hear it properly. As a result,the hearing problems become  5 .

  As we know,the ear has 6 parts: the outer part,the middle ear and the inside ear. There are tiny (微小的)hairs 7 the inside ear. The tiny hairs get the sound waves (声波)and then change them into 8 the brain can understand. Listening to loud noise for a long time can 9 the tiny hairs and this causes hearing loss.

  So next time you listen to music when 10  your earphones,make sure it is not loud enough for others to hear.  Remember that once hearing loss sets in,there is no turning back. 

(   ) 1. A. other B. others

     C. the other     D. the others 

(   ) 2. A. cause B. pollution

        C. danger D. safety

(   ) 3. A. if B. though

     C. before D. while

(   ) 4. A. turn down     B. turn up 

        C. turn off D. turn on

(   ) 5. A. good and good

       B. bad and bad

      C. better and better

      D. worse and worse

(   ) 6. A. one B. two

      C. three D. four

(   ) 7. A. in B.for

       C. across D. though

(   ) 8. A. why B. when

       C. where D. what

(   ) 9. A. be good for

     B. be good to

     C. be harmful to

     D. be harm to

(   ) 10. A. use B. using

     C. hear D. hearing

Answer 1

1.B与文中最后一段第一句相呼应。

2. C 指医生警告年轻人要注意大声听耳机的危险。

3. A if引导条件状语从句。

4. B 由上一句内容可知，人们会慢慢地丧失听力，需要把音乐声开更大才能听得到。

5. D由上两句可知，人们会慢慢地丧失听力，需要开大音乐才能听得到。这样的结果就是听力问题越来越严重。

6. C 由下一句可知，人的耳朵分外耳、中耳和内耳三部分。

7. A

8. D 疑问代词what作understand的宾语。

9. C  噪音会对内耳有损伤，be harmful to意为"对……有害"。

10. B 用耳机而不是听耳机，when为介词，后接动名词。