Read aloud and reciting competition
1. Global warming has become one of the most serious environmental problems .
2. It is human activities that has caused this global warming rather than a natural phenomenon.
Global warming
causes
A rising population
The use of energy
Greenhouse gases
Burning of fossil fuels
Agricultural industry
Destruction of forests
If the world keeps warming? What would happen?
Have you ever seen the film The Day After Tomorrow?What kind of disasters have you seen in the f ...