Many wildlife habitats will be destroyed if man keeps polluting the environment. 2. If we dump all sorts of chemicals into rivers, we will not be able to swim in them in the future. 3. If we do not stop cutting down so many trees, we will endanger our oxygen supply. 4. Soon the Earth’s resources will be exhausted if the human population continues to grow. 5. If everybody continues to use aerosols and CFCs, the hole in the ozone layer will get bigger. 6. If the sun radiation can’t escape into space, Earth’s temperature will increase steadily. 7. If the global temperature rises, sea levels will rise too. 8. We’ll threaten our own existence if we do not cut down on waste rapidly. 9. People will run out of drinking water one day if they do not use it more rationally. 10. If he wants to help the planet, then he has to change his habits
2. If we dump all sorts of chemicals into rivers, we will not be able to swim in them in the future.
3. If we do not stop cutting down so many trees, we will endanger our oxygen supply.
4. Soon the Earth’s resources will be exhausted if the human population continues to grow.
5. If everybody continues to use aerosols and CFCs, the hole in the ozone layer will get bigger.
6. If the sun radiation can’t escape into space, Earth’s temperature will increase steadily.
7. If the global temperature rises, sea levels will rise too.
8. We’ll threaten our own existence if we do not cut down on waste rapidly.
9. People will run out of drinking water one day if they do not use it more rationally.
10. If he wants to help the planet, then he has to change his habits
1. 1. We are swimming in the swimming pool.
2. She is watching TV now.
3. I and my sister are going to school now.
4. My father is washing his car at the moment.
5. They are playing the piano now.
2. On the armchair 1) The bank in High Street is big and modern.
On the chair 2) You can sit on this comfortable armchair when you watch TV.
In the street 3) The birds on the tree are not sparrows. What birds are they?
On the photo 4) We can often see roses on the piano in the living room.
3. 1) John and Sally like their house in Green Street.
2) I can see the Barkers, they are in their garden.
3) John! Can you help us please?