1、People throw rubbish everywhere.People cut down all the trees.The river is not clean any more.The sky is not blue anymore.Many fish died and many animals were killed.Pollution planes shipssmoking factoriesdangerous gas(气体)carsnoise pollutionmobile phonesbuilding houseloud music waste water rubbishAi
2、r PollutionNoise PollutionWater Pollution Tony wants to go swimming.Can he go?Listen and complete the sentences.What was the problem?The river was _.Even the bottom of the river was full of _.There were no more _ for fishermen to catch.really dirtyrubbishfishWhat caused the problem?People are throwi
3、ng _ into the river.Factories are putting _ into the river.How should the problem be solved?We should write to the _ and ask them to _ the factories.Everyone should help to _ the river.litterwastegovernmentclose downclean up .We can take the bus or subway instead of drivingWe can also ride a bike.We can take our own bag when we go shopping.We can ask the government to close down the factories.We can call on people to throw litter in the bin.We can plant more trees.pollution:air pollution,water pollution,noise pollution.Homework
