Exercise 4 Listen to the scond part of the radio programme.
Take notes on the following So,it's very important to control noise pollution, isn't it? That's right.As I said, noise pollution is unpleasant for us all. It can cause stress and loss of sleep and can also damage our hearing. Take car horns for example.Experts say that only 40 minutes of exposure to a car horn would damage our
hearing permanently.So you see, noise pollution really can affect people's lives. How can noise pollution be controlled? Actualy,noise pollution isn't hard to control. There are some relatively simple methods that the government has started using to reduce noise pollution in our cities. For example, there are plans to improves public transport so that the number of cars on the roads will be reduced. There are also plans to install soundproof windows in buildings which face onto roads. Another way to reduce noise pollution is to build main roads, industrial areas and shopping malls away from places like schools, hospitals and residential areas where people need peace and quiet.
n. 动物角,喇叭,触角,角状物,力量源泉