Unit 13 Were trying to save the earth!,Section A (1a-2d),Here are kinds of pollution.,Air pollution,Water pollution,Noise pollution,Light pollution,Land pollution,Listen to 1b and complete the sentences,Listen to 2b and complete the sentence.,The air is badly polluted because there are _ on land. 2. Factories that burn coal also _ the air with a lot of black smoke. 3. There is also too much rubbish and waste. People _ things everyday. 4. People are also littering in _ like parks. This is turning beautiful places into ugly ones.,Practice,Role-play the conversation(2d). Discuss how to stop the pollutions.,Work alone,1 Sometimes people use chemicals much on their fields, so _ is difficult to stop. 2 Each year people pour waste into rivers, lakes and so on, so _ is everywhere in China. 3 _ makes people sick. It causes breathing problems and even cancer. 4 In some cities theres too much _ caused by many cars. The government has done something useful to stop it. 5 _ is harmful to our eyes. 6 _ influences the look of our cities.,Project,Observe environment around you and see whether there are pollutions . How are they produced? Make a report and give it to the government.,Thank you,Byebye,