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9、Accustomed though we are to speaking of the films made before 1972 as “silent”, the film has never been, in the full sense of the word, silent.

虽然我们习惯于谈到1972年以前的电影是无声的，但用一句完全感性的话来说电影从来就不是没有声音的。

10、A series of mechanical improvements continuing well into the nineteenth century, including the introduction of pedals to sustain tone or to soften it, the perfection of a metal frame, and steel wire of the finest quality, finally produced an instruments capable of myriad tonal effects from the most delicate harmonies to an almost orchestral fullness of sound, from a liquid, singing tone to a ship, percussive brilliance.

十九世纪一系列持续的机械进步，包括踏板的传入、金属结构的完善和钢丝最完美的质量，最后产生了一种能容纳无数音调-从最精致的和弦到一个成熟管弦的声音或从一个清澈的歌声到辉煌的敲击乐的效果-的乐器。

11、For a number of years the selection of music for each film program rested entirely in the hands of the conductor or leader of the orchestra, and very often the principal qualifications for holding such a position was not skill or taste so much as the ownership of a large personal library of musical pieces.

多年以来电影音乐的选择程序完全掌握在导演和音乐督导手中，通常拥有这些权力的主要资格并非是自身的技艺和品味而更多的是因为拥有大量的个人音乐素材库。

12、They made available kinds of popular music heard previously only limited geographical areas or by specific ethnic and social groups – especially the blues, gospel songs, and jazz of African Americans and the traditional music of the southern Appalachian Mountains and other rural areas of the southern and western United States.

他们制造了相当多种类的流行音乐，这些音乐以前只限于在地理区域或特殊的种族和社会群体能被听到，尤其是象布噜斯、福音歌曲和非洲美国人的爵士乐和阿巴拉奇亚山脉南部和其他美国南部和西部的乡村区域传统音乐。

延伸阅读：

托福听力备考必备词汇（一）

托福听力备考必备词汇（二）

托福听力备考必备词汇（三）

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