第59页 - 译林英语初中补充习题八年级

It's loud.

It's not necessary.

It begins to harm human and animal life.

The sounds of cars, buses, lorries, trains and planes.

When people lose sleep because of noise pollution, they become careless. This can lead to accidents.

Noise pollution makes people feel stress. This can lead to heart disease.

We can all help with the problem by turning down our music and TVs, and use a softer voice when we talk.