2018年的專八看似很遙遠，但是對於難度大的專八考試來說，考生如不及早備考，可是難以取得理想的成績的。下面，小編就爲大家送上一篇2018專八閱讀理解練習題，供大家練習。
Every year television stations receive hundreds of complaints about the loudness of advertisements. However. federal rules forbid the practice of making ads louder than the programming. In addition, television stations always operate at the highest sound level allowed for reasons of efficiency. According to one NBC executive. no difference exists in the peak sound level of ads and programming. Given this information. whydo commercials sound so loud?
The sensation of sound involves a variety of factors in addition to its peak level. Advertisers are skilful at creating the impression of loudness through their expert use of such factors. One major contributor to the perceived loudness of commercials is that much less variation in sound level occurs during a commercial. In regular programming the intensity of sound varies over a large range. However, sound levels in commercials tend to stay at or near peak levels.
Other "tricks of the trade" are also used. Because low-frequency sounds can mask higher frequency sounds. advertisers filter out any noises that may drown out the primary message. In addition, the human voice hasmore auditory (聽覺的) impact in che middle frequency ranges. Advertisers electronically vary voice sounds so that they stay within such a frequency band. Another approach is to write the script so that lots of consonants(輔音) are used, because people are more aware of consonants than vowel (元音) sounds. Finally, advertisers try to begin commercials with sounds that are highly different from those of the programming within which the commercial is buried. Because people become adapted to the type of sounds coming from programming. a dramatic change in sound quality draws viewer attention. For example. notice how many commercials begin with a cheerful song of some type.
The attention-getting property of commercials can be seen by observing one-to-two-year-old children who happen to be playing around a television set. They may totally ignore the programming. However. when a commercial comes r attention is immediately drawn to it because of its dramatic sound quality.1. According to the passage, the maximum intensity of sound coming from commercials________.
A) does not exceed that of programs
B) is greater than that of programs
C) varies over a large range than that of programs
D) is less than that of programs
2. Commercials create che sensation of loudness because____________________.
A) TV stations always operate at the highest sound levels
B) their sound levels are kept around peak levels
C) their sound levels are kept in the middle frequency ranges
D) unlike regular programs their intensity of sound varies over a wide range
3. Many commercials begin with a cheerful song of some kind because_________________.
A) pop songs attract viewer attention
B) it can increase their loudness
C) advertisers want to make them sound different from regular programs
D) advertisers want to merge music with commercials
4. One of the reasons why commercials are able to attract viewer attention is that_____________.
A) the human voices in commercials have more auditory impact
B) people like cheerful songs that change dramatically in sound quality
C) high-frequency sounds are used to mask sounds that drown out the primary message
D) they possess sound qualities that make the viewer feel that something unusual is happening
5. In the passage, the author is trying to tell us________________.
A) how TV ads vary vocal sounds to attract attention
B) how the loudness of TV ads is overcome
C) how advertisers control the sound properties of TV ads
D) how the attention-getting properties of sounds are made use of in TV ads
答案：
1.根據文章的內容，電視廣告中最高強度的聲音_____________。
A)不會超過電視節目的聲音
B)比電視節目的聲音要強
C)強度在一個比電視節目聲音強度要廣的範圍裏發生變化
D)比電視節目的聲音要弱
[A]第1段2句和第4句分別提到，聯邦法律禁止廣告聲音大於節目的聲音;國家廣播公司的某個官員稱，廣告和節目的最大音量並無區別。由此可知，廣告的聲音強度並沒有超過節目，因此A正確。
2.電視廣告讓人覺得聲音很大，因爲__________________。
A)電視臺總是用最大的聲音來播出節目
B) 電視廣告的聲音被保持在最高峯值
C) 電視廣告的聲音被保持在中等波段
D) 與一般的電視節目不同，電視廣告的聲音強度在一個很廣的範圍內變化
[B]第2段第1句指出，人們對聲音的感覺會受音量峯值的影響，後面進一步說明爲達到此目的，廣告人使用的技巧。再結合本段最後一句，可知B項符合題意。
