Noise pollution is doing much harm to our health now. Noise, in fact, is unwanted sound and is a kind of invisible (无形的) killer. More and more students enjoy listening to music very much. When they listen to MP3 players, they like to turn up the volume (音量). Some people love listening to loud music. Furthermore, while watching TV, they keep the volume up. But they haven't realized that the noise is weakening their hearing. In fact, the noise not only influences each member in the family, but also makes a difference to the comfort of neighbors.

Noise pollution is a source of increasing misery (痛苦) to people in our society. If people are often disturbed by it, they may feel uncomfortable or upset. What's worse, the noise can make people mad sometimes. If a worker works in a printing factory for too long, his/her hearing loss is much faster than a common person working in a quieter environment. So everybody must pay more attention to noise pollution. Generally speaking, the following four types of noise should be watched out for:

    ◆Noise in the street

    ◆Construction site (建筑工地) noise

    ◆Noise at work

    ◆Transportation noise

    I think the local department (部门) should take measures to control the noise levels, but it's everybody's duty to keep a quiet environment.

物理学发展历程中，利用理想实验推翻“力是维持物体运动的原因”的科学家是（   ）

材料一：樊迟问“仁”。子曰：爱人。”

——《论语·颜渊》

“夫仁者，己欲立而立人，己欲达而达人。”

——《论语•雍也》

材料二：“学而时习之，不亦说乎”？“知之为知之，不知为不知”，“三人行，必有我师焉！”

材料三：郭沫若说：“书籍被烧，其实还在其次，春秋战国以来，蓬蓬勃勃的自由思索的那种精神，事实上因此而遭受了一次致命的打击。”