Unit 13 Section A （1a-1c ）课件2023-2024学年人教版九年级英语全册

Unit 13 We are trying to save the earth. Section A 1a-1c Objectives By the end of the class, students should be able to: Talk about air pollution, water pollution , noise pollution and waste pollution. Think about ways of protecting the environment. learn to use the sentence patterns ...used to...but now should do sth. 2 Lead-in: watch a video What kind of pollution is it? Water pollution. 3 What kind of pollution do you know? noise pollution air pollution water pollution The world’s problem What kind of pollution are they? air pollution water pollution desertification Natural disasters Endangered animal Pollution Let’s see and answer the questions. 1.What was the problem? There was … 2.What caused it?What are people doing? People are … 3.How did it use to be? It used to be … 4.How should the problem be solved? We should … Air pollution Reason 2 6 Let’s see and answer the questions. 1.What was the problem? There was … 2.What caused it?What are people doing? People are … 3.How did it use to be? It used to be … 4.How should the problem be solved? We should … Water pollution Reason 3 7 land/waste/soil pollution noise pollution What can you see in the pictures? What kinds of pollution are they? 【5】In （点击动画）the second picture, a plane is flying over some houses. 【6】It is flying at a low altitude. 【7】The noise level must be quite high for the people living in those houses. 【8】It（点击动画） is noise pollution. 8 What are the problems? What caused noise pollution? noise pollution Free talk How to solve these problems? Besides the chemical pollution, there are other kinds of pollution. What are they according to the pictures? Lead-in Lead-in noise pollution air pollution water pollution The earth is polluted. We're harming our planet in so many ways. noise pollution water pollution air polluti