Since ancient times Nature has served Man, being the source of his life. For thousands of years people lived in harmony with environment and it seemed to them that natural riches were unlimited. But with the development of civilization man's interference in nature began to increase.
Large cities with thousands of smoky industrial enterprises appear all over the world today. The by-products of their activity pollute the air we breathe, the water we drink, the land we grow grain and vegetables on.
Every year world industry pollutes the atmosphere with about 1000 million tons of dust and other harmful substances. Many cities suffer from smog. Vast forests are cut and burn in fire. Their disappearance upsets the oxygen balance. As a result some rare species of animals, birds, fish and plants disappear forever, a number of rivers and lakes dry up.
The pollution of air and the world's ocean, destruction of the ozone layer is the result of man's careless interaction with nature, a sign of the ecological crises.
Jane: Hello, Peter. How was the school trip to Durham? Was it Wednesday or Thursday you went? Peter: Friday. J: What was the city like? P: Well, we visited three places — the cathedral, the museum and the castle. The castle only opens in the morning so the bus took us straight there. After that we went to the museum and the cathedral. J: Was it a good trip? P: Well — in the museum we looked at old paintings and stamps, which I didn’t like much, but the guide showed us some old clocks and told us all about them. That was interesting. J: And the castle? P: Well, you know how some are just dark, empty ruins. This was different. There was a lot to see. It just wasn’t very warm. J: Did you go shopping? P: Yes, after eating our sandwiches. I only bought some postcards. The book about Durham I wanted was too expensive. J: Did you take any photographs? P: Well, before we went back to the bus I took some of my friends. I wanted to take photos of the cathedral windows but it wasn’t possible.
Since ancient times Nature has served Man, being the source of his life. For thousands of years people lived in harmony with environment and it seemed to them that natural riches were unlimited. But with the development of civilization man's interference in nature began to increase.
Large cities with thousands of smoky industrial enterprises appear all over the world today. The by-products of their activity pollute the air we breathe, the water we drink, the land we grow grain and vegetables on.
Every year world industry pollutes the atmosphere with about 1000 million tons of dust and other harmful substances. Many cities suffer from smog. Vast forests are cut and burn in fire. Their disappearance upsets the oxygen balance. As a result some rare species of animals, birds, fish and plants disappear forever, a number of rivers and lakes dry up.
The pollution of air and the world's ocean, destruction of the ozone layer is the result of man's careless interaction with nature, a sign of the ecological crises.
Peter: Friday.
J: What was the city like?
P: Well, we visited three places — the cathedral, the museum and the castle. The castle only opens in the morning so the bus took us straight there. After that we went to the museum and the cathedral.
J: Was it a good trip?
P: Well — in the museum we looked at old paintings and stamps, which I didn’t like much, but the guide showed us some old clocks and told us all about them. That was interesting.
J: And the castle?
P: Well, you know how some are just dark, empty ruins. This was different. There was a lot to see. It just wasn’t very warm.
J: Did you go shopping?
P: Yes, after eating our sandwiches. I only bought some postcards. The book about Durham I wanted was too expensive. J: Did you take any photographs? P: Well, before we went back to the bus I took some of my friends. I wanted to take photos of the cathedral windows but it wasn’t possible.