Too much noise may be dangerous to your health. A number of studies have shown that living or working where there is a great deal of noise can cause hearing loss. But there also is a (1)______ amount of scientific evidence showing that continued loud noise may cause other medical problems. These (2)______ high blood pressure, nervous disorders, learning problems, difficulty in sleeping and, possibly, even birth defects and some kinds of heart disease.
One test showed that the dangers (3)______ people who spend a lot of time listening to loud music. A New York City doctor studied 70 young persons who work in popular dancing and drinking places (4)______ music is played loudly. She found that more than 30 percent of them had suffered great and permanent hearing loss. Normally, she said, less than one percent of people (5)______ suffer such loss.
The doctor, Jane Madell, also studied a group of 40 New York City firemen. All had worked near loud warning sirens on fire trucks (6)______ . Doctor Madell found that 75 percent of them had suffered a severe hearing loss.
Doctors said some persons are more likely than others to suffer hearing loss (7)______continued loud noise. But they said they can not learn which persons face the most danger after permanent hearing damage has been done.
Another scientist discovered that loud noise (8)______ to limit a child.s ability to learn. The scientist Arlene Brunzapt studied students at a New York City school near a busy railroad. Students in rooms near the railroad had difficulty (9)______ to read. This was not true with the students in quieter parts of the school. After steps were (10)______ to reduce the train noise, a new study found that the reading problem had disappeared.
1. A. grow B. growth C. growing D. growingly
2. A. include B. concern C. compose D. constitute
3. A. facing B. faced C. facing with D. faced with
4. A. that B. there C. when D. where
5. A. that age B. with that age C. At that age D. at the age
6. A. for ten years or more B. for ten more years
C. for ten years more D. for more ten years
7. A. of B. after C. from D. due to
8. A. happens B. appears C. occurs D. emerges
9. A. in learning B. to learn C. with learning D. of learning
10. A. taken B. made C. adopted D. employed
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