Directions: There are three reading passages in this part. Each passage is followed by some questions at unfinished statements. For each of them there are four suggested answers marked A, B, C and D. Choose the best answer to each question.
Questions 53 to 57 are based on the following passage: (10分)
Researchers have shown that noise can adversely affect human in both physiological and psychological ways. Hearing losses in particular occupations such as shipbuilding and construction work are well-known. In fact, however, we all find hearing more difficult as we age .Young ears can distinguish a wide range of sounds from low to very high frequencies while older ears lose the ability to distinguish high-pitched sounds. A comparison of people living in some industrialized and non-industrialized areas suggests that this hearing loss may not necessarily company old age.
Furthermore, a closer inspection of other data reveals economic effects. For instance, an increased turnover in property has been observed in noisy areas near airports. Job performance can be adversely affected by local noise, especially if accuracy and mental effort are involved. The use of outdoor areas for conversation is not possible for an estimated 5 to 10 million people who live or work in urban areas. When interference with television or speech or sleep is included, as many as 22 to 44 million people can be said to nave lost part of the use of their homes and grounds because of noise.
Thus noise pollution is a serious environmental concern. The indifferent attitude toward noise should be overcome; considerable efforts should be made to alert people to the grave effects that may stem from an excessively noisy environment.
53. We can learn from this passage that.
A. young people are sensitive to high-pitched sounds
B. young people distinguish low frequency noise better than old people
C. high frequency noise can cause hearing loss in old people
D. people in industrialized areas will suffer hearing loss when they are old
54. According to the passage, noise affects human beings .
A. physiologically, psychologically and economically
B. physiologically and psychologically
C. physiologically and economically
D. psychologically and economically
55. It can be inferred from the passage that loud noise has greater effects on people who work
A. in ship-yards B. in offices
C. at airports D. on work sites
56. Which is NOT true according to the passage?
A. Different occupations have different effects on people’s hearing ability.
B. People working in noisy environment are more likely to develop hearing problems.
C. Noise can affect people’s daily lives.
D. Urban people live in smaller homes because of noise.
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