1. What can we do to save the Earth

2. The route of the expedition

3. Match the words Protect clothing Air waste Protective water
Environmental environment
Pollute paper
Waste problems
Chemical pollution

4. Ecological problems

6. About endangered animals
Giant Panda  Population: There are approximately 2,000 giant pandas living in their natural habitat  Lifespan: 20-30 years  Location: Central China  Threat Level: Endangered Endangering Factors: Loss of habitat, low birth rates, and excessive poaching are all significant factors that have contributed to classify the giant panda as one of the most critically endangered species.

7. Polar Bear  Population: There are an estimated 20, ,000 polar bears left on the earth  Lifespan: 20-25 years  Location: Canada, Denmark, Alaska, Norway, Russia, & the Artic Circle  Threat Level: Vulnerable [3]  Endangering Factors: Global climate changes and pollution from oil & gas development are the two main contributing factors to the decline of mother nature's largest land carnivore.

8. Tiger  Population: Estimates put the tiger population at less than 2,500  Lifespan: 10-15 years  Location: India, China, & Southeast Asia  Threat Level: Endangered   Endangering Factors: Poaching for their fine fur mixed with a large destruction of their natural habitat have caused a steep decline in the number of tigers left in the world

9. Snow Leopard Population: There are only between 5,000 and 7,000 snow leopards left in the world  Lifespan: 15-18 years  Location: Central and south Asia (Russia, China, India, Pakistan, etc.)  Threat Level: Endangered   Endangering Factors: An unbalanced mountain ecosystem along with excessive deforestation are causing a decline in the snow leopard population.

10. Rules for forest visitors

11. Give some advice…

14. Complete the sentences
1. If all people decided to save our world, …
2. If people took cans, bottles, paper to local recycling centers, ...
3. If people didn’t drop litter in the country side,…
4. If people didn’t waste paper,…
5.If people cleared up litter outside their home, offices and schools, …

15. We should + V / We shouldn’t + V