感谢大耳朵网友"zgz509"提供的听力原文!

Don't throw the batteries into the garbage basket!

Why?

Don't you know that batteries is polluting?

No.

It should be collected separately. There is a special box for it at the entrance of this department. Take them there.

I see. When did you become an environmentalist?

I'm not. Everybody should pay attention to the environmental protection,which is for our own sake.

You're right.