2016年6月起大学英语四六级考试听力部分有重大调整。陪伴了中国大学生十几年的短对话和短文听写将退出历史舞台，取而代之的是短片新闻听力和学术讲座。接下来，同学们可能需要花费很多时间来适应新的听力考试模式，四六级考试网给大家提供英语六级听力在线练习内容，听力的复习没有捷径，只能多听多练了。

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　　听力习题：

　　29.

　　A. It is extremely dangerous to fly in the dark.

　　B. Noise regulations restrict the hours of airportoperation.

　　C. Some of its runways are not in good condition.

　　D. Cargo planes produce more disturbing noises atnight.

　　30.

　　A. It might increase airport capacity.

　　B. It might lower property values.

　　C. It might lead to effective modification of existing jet engines.

　　D. It might cause more transportation costs to and from airports.

　　31.

　　A. The effects of noise on the quality of life.

　　B. The role of air traffic restrictions.

　　C. The production of quieter engines.

　　D. The economic aspects of noise reduction.

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