2021学年3. Our polluted planet集体备课课件ppt

这是一份2021学年3. Our polluted planet集体备课课件ppt，共21页。
What prblems are there?
Peple thrw rubbish in the rivers and sea.
Factries prduce t much waste water and il.
Water pllutin is a big prblem.
Peple thrw away t much rubbish.
Land pllutin is a big prblem.
Factries prduce t much smke.
The traffic prduces t many fumes.
Drivers keep the engine running when they are nt driving.
Air pllutin is a big prblem.
The traffic makes t much nise.
Radwrks make t much nise.
Nise pllutin is a big prblem.
We can use if-sentences t give warnings.
If we keep n causing air pllutin, we wn’t have any fresh air t breathe.
If we keep n causing land pllutin, plants and animals will die.
If we keep n causing nise pllutin, we wn’t have a quiet place t live in.
If we keep n causing water pllutin, sea animals will die.
If we keep n causing air pllutin, we wn’t have fresh air t breathe.
Hw can yu stp causing pllutin? Discuss with yur friends.