人教版九年级Unit 13 We're trying to save the earth!-Section A 1a—1c-ppt课件-(含教案)-公开课-(编号：e0134).zip

Unit 13 We are trying to save the earth. Problems: The air is polluted. Litter is everywhere. The water is polluted. The land is polluted. More and more people died from cancer. There are a lot of problems in our earth. What should we do? What can we do? Unit 13 We are trying to save the earth. Section A 1a-1c How many kinds of pollution do these pictures show? noise pollution water pollution air pollution land pollution What kinds of pollution do you know? noise pollution water pollution air pollution loud music cars rubbish planes littering ships factories smoking building houses mobile phones loud music planes building houses mobile phones rubbish littering ships factories cars factories smoking building houses 1b. 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. What caused the problem? People are throwing _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. really dirty rubbish fish litter waste governmen t close down clean up Suggestions: 1. 2. 3. 4. 5. 6. Homework: After class, use the sentences we have learned to write a passage. Unit13 We are trying to save the earth Section (1a-1c) Teaching aims: Knowledge and skills:1.Master the new words：litter fisherman 2. Master the sentence structure: The air is polluted. The river used to be so clean. Process and methods: Through the reading material and the conversations, students should master the use of passive voice and used. Emotion attitude and value: Students should know the importance of environmental protection and learn to protect the earth. Teaching important points:1. Master the new words. 2. Master the sentence structure. Teaching difficult points: Master the use of passive voice and used. Teaching steps: Step1 leading in 1. At first greet the students. 2. Ask the students to look at the screen. Show students some pictures, and ask them to talk about these pictures. Step2 Presentation 1. Ask students to look at the first picture, rubbish everywhere. Lead to some new words. Through these pictures, lead students to know that our earth is polluted badly, if we do not take action now, our earth will disappear. 2. Do activity 1a. Here are some words related to different kinds of pollution. Write them in the box below. Ask students work in pairs to finish 1a. Step3 listening 1. Ask students to look through the listening material. When listen it for the first time, students only listen. 2. Listen it again, students finish the blanks. 3. Listen it for the last time, students check answers together. 4. Ask some students to read their own answers. If have any mistakes, other students should correct it. Step4 Competition After learning these language points, some students have known the condition of our earth. If we want to save our earth, what can we do? Ask students to come up with some good ideas, and I will divide students into two groups to have a competition. Step5 Revision Ask students to summarize the language points in this class, and know how to use the sentence structure we have learned in the class. Step5 Homework Students write a short passage about how to save our earth. At the same time, preview the next period. Teaching reflection： In this class, we have learned the use of passive voice. The language point is very important, but I did not spend too much time to explain the grammar point. Through these pictures, I am glad that students want to change our earth, they want to protect our environment.